Apple issued a news last week that Apple Music started to support Dolby Atmos and lossless music in June. Dolby Atmos supports all Beats headsets with AirPods and H1 and W1 chips. Because of the special lossless sound quality, they issued a separate long announcement the day before yesterday, about the following points: 1. All AirPods, AirPods Pro, AirPods Max, Beats headsets do not support the lossless sound quality of Apple Music. 2. Even if the adapter is plugged in, AirPods Max cannot hear losslessly, because data signal conversion will occur and there will be data loss. 3. HomePod and HomePod Mini will support lossless sound quality through software updates later. Netizens were anxious as soon as this announcement came out. They couldn’t hear their own lossless music with their own headphones. Funny words? Don’t get excited, when Apple didn’t produce lossless music before, don’t you also think AirPods are very fragrant. . In fact, Apple cannot be blamed for this. Most Bluetooth headsets on the market cannot support lossless music with current technology. Why do you say that, let’s first understand a few concepts. After the singer has finished recording the song, he must make the music analog signal into a music file through PCM encoding, which is digitized. The encoded file is called a PCM file, which is the most basic audio encoding, and all encoding operations need to be based on the PCM format. But this kind of file often cannot be played directly. It needs to be re-encoded in order to be heard by the public. There are three ways: Uncompressed encoding (common formats are AIFF, WAV) Lossless compression coding (common formats are WMA, FLAC, ALAC) Lossy compression coding (common formats are MP3, AAC) Due to the large volume of uncompressed encoded files, a few songs can be used as a small movie. In order to facilitate storage, everyone usually comes into contact with compressed music files, which is often referred to as lossless and lossy music. If a song “Hotel California” uses uncompressed encoding Its file size is 264 MB I don’t know if you will notice 128K and 320K when you download MP3 before. These numbers are the audio bitrate. The bit rate represents the data transmitted per second by the audio. The higher the bit rate, the better the sound quality. The code rate is determined by the sampling rate, bit depth, and the number of channels. Without compression, the code rate = sampling rate * bit depth * number of channels. Sampling rate indicates the number of sound samples collected in 1 second, and the unit is Hz. The sampling bit depth indicates the accuracy of each collected sound sample, and the unit is bit. Sound channels, for example, the number of channels for dual channels is 2. According to the international definition, the sound quality must reach the CD level to be considered lossless, that is, the sampling frequency is 44.1 kHz and the sampling bit depth is 16 bits. But in fact, a large part of Bluetooth headsets can’t handle even this most basic lossless music. According to the code rate formula just now, the code rate of the dual-channel 44.1kHz/16-bit music without compression is: 44.1kHz * 16 * 2 =1411.2 kb/s (note here b is a bit, not a B Byte, 1B = 8b) Usually the compression rate of lossless music is 70%, and the bit rate of lossless music is about 1411kb/s * 70% = 987 kb/s. In other words, to transmit lossless music, the transmission bandwidth is 987 kb/s. The reason why it is difficult for Bluetooth to support lossless music is because the bit rate of common Bluetooth encoding format (SBCAAC) is not enough, basically at 328 kb/s. So even if you listen to lossless music with a bitrate of 987 kb/s, it will be compressed to 320 kb/s when you encounter these Bluetooth encoding formats, and when it is converted back, it is no longer lossless music, let alone Let’s talk about the loss that occurs in the analog-to-digital conversion. At present, only Sony’s LDAC and Shengwei LHDC are the only Bluetooth codecs that can achieve lossless music bit rates, which can reach a maximum of 990 kb/s. Without considering the audio loss in the analog-to-digital conversion, they can barely transmit lossless music. However, these two encodings are not yet popular, and to use these two encodings, the sender and receiver chips must support it at the same time. To sum up, regardless of various losses, at present, both ends need to support LDAC/LHDC at the same time to listen to lossless music with Bluetooth headsets, so if you don’t have the corresponding equipment on hand, forget about lossless music. Let me talk about a more realistic question. Even if you don’t use a Bluetooth device, for most people, lossless music is no different from lossy except that it takes up more space. Compared with lossless sound quality, lossy sound quality deletes a part of unimportant data during the compression process, and this part of the data is mainly concentrated in the high frequency part. Let’s look at the spectrogram of Hotel California at different bit rates. The horizontal axis is time and the vertical axis is frequency. Lossless sound quality, format flac, volume 37.5 MB Loss sound quality, MP3 with a bit rate of 320kbps, and a volume of 14.9 MB Loss sound quality, MP3 with 128 kbps bit rate, 6.06 MB You should be able to see that the lossy sound quality is mainly due to the lack of high-frequency data (above 17kHZ) compared to the lossless sound quality. And the lower the bit rate, the less high-frequency parts will be. However, these high frequency parts are not easy for us to hear. The reason is related to ears and equipment. Let me talk about ears first. According to the physical knowledge learned in the second grade of junior high school, the human ear can hear the range of 20 Hz-20 kHz, but in reality, few people can reach such a wide frequency band, and people can hear frequencies as they grow older. Will gradually decline. Let’s talk about equipment. When most speakers or headphones introduce parameters, they will indicate that the frequency response range is 20-20kHz, and some even exceed this range. However, it is often affected by many factors, and most devices basically can’t make sound when it is close to 20 kHz.

The moon just entered the door blush like autumn ripe fruit. *** Don’t raise your voice The birds have just folded their wings to fly Eyes closed the old straw nest. *** Don’t raise your voice The lullaby is still ringing On the breast. *** The crease of the shirt is fermented from the previous wind This afternoon smells of god People Just resting your feet. *** Don’t raise your voice. A collection of poems, Voices, by Ta Anh Thu. Photo: FBNV. Comments Poem Don’t raise your voice in each stanza – the passage has the appearance and spirit of a Haiku. The still movement of time in the ripe fruit, the restless closing of the bird’s wings leaving the nest; The lullaby still resounds on the breast, the drunken yeast of the journey suddenly bewildered when stopping… gives us the ancient melancholy. Poetic form is a framework that avant-garde poets always intend to overcome. Overcoming the form of the body (for example: Six bowls, Haiku…) to create the life of the genre (Poetry) is the path of regal innovation. Holding only poetry as the nourishment of the genre and challenging the rigidity of the body is a particular delight in artistic creation. Ta Anh Thu must have thought of that when evoking the Haiku atmosphere and beyond the Haiku form. Don’t raise your voice not silence, but to listen to the sound of silence. Picking up each moment, stringing together four poems, forming a closed structure, the poem keeps the reader in a space separate from the noisy, tired world out there. Reading poems, for me, can be a way of self-support!

The Golden Gate Bridge in San Francisco has been making strange noises for the past year. Photo: Reuters Strange sound According to The Guardian (UK), in a windy tunnel in the southwest of Ontario, California, a team of acoustic and aerodynamic experts is testing on a model of the railing of the Golden Gate Bridge. Experts have contracted to solve the mystery of a strange humming sound emanating from the famous bridge in San Francisco over the past year. Some residents living nearby feel extremely uncomfortable hearing this noise. Accordingly, this mysterious sound appears only on days with strong winds. It has been compared by some to the “ghost harmonica”, “the sound of the monks chanting”, or the “wheezing sound”. This strange sound quickly became a thrilling story in San Francisco. A music producer has put it on a track of existential fear. Some amused people consider it the “mellow song” of the bridge, others say the sound is very “creepy” and they can’t stand it. aliens made this noise. “It sounds like a noise I can imagine prison guards use to torture prisoners,” one social media user shared. But whether San Francisco people love it or hate it, engineers will get rid of it next summer. Video: The mysterious sound from the Golden Gate Bridge (Source: Youtube): The cause of the mysterious sound After residents of the city began complaining about the noise in June 2020, authorities began an investigation. They monitor this sound and use instruments to measure the vibration of the humming. They found that the sound usually comes out at 440 hz, matching the note of A. The noise occurs when the wind hits the new balustrade, installed from a slight angle, slightly north or south, relative to the normal wind from the west. “After carefully studying the phenomenon, we determined the sound was coming from the new aerodynamic railing that we installed on the west side,” said Paolo Cosulich-Schwartz, a spokesman for the Bridge Management Board. . “It is part of the Golden Gate Bridge upgrade, designed to protect the bridge by allowing it to withstand sustained high winds of up to about 160 km/h.” He said new, thinner railings have been installed to ensure the bridge doesn’t have the same problems as the ill-fated Tacoma Narrows Bridge in Washington. The bridge shook violently in the wind, then collapsed in 1940, shortly after a few months of construction. “So we had to go ahead with this project. As climate change leads to more extreme weather events, it is imperative that the construction be completed as soon as possible,” said Cosulich-Schwartz, adding that the building was retrofitted with wind resistance in 2016. last year at a cost of $12 million. A study conducted in 2013 showed that the maximum wind speed that the bridge can withstand is 111 km/h. Since its inauguration, the Golden Gate Bridge has been closed 3 times due to bad weather conditions, in 1951 with strong winds of 111 km/h, in 1982 with strong winds of 113 km/h and in 1983 with strong winds of 121 km /H. Fortunately, no damage occurred. So bridge engineers looked for newer thin slats that would allow the bridge to withstand winds of up to 160km/h. They just didn’t expect the bars to create such a “symphony”. Wind gusts of 160km/h are only possible in the event of a tornado, hurricane or tropical storm, said Warren Blier, a senior science official with the National Weather Service. The Golden Gate Bridge has been closed 3 times in its history due to strong winds. Photo: AP Attempts to silence the noise Meanwhile, engineers are determined to find a way to fix the problem. At engineering firm RWDI, an hour west of Toronto, a model of a bridge the size of a conference room was built in a wind tunnel. Engineers are testing various wind speeds and modifications to see if they can quell the noise. However, in the city of San Francisco, not everyone wants this noise to go away. A local blogger even created a sound list around the Golden Gate Bridge to help listeners sleep better. “I love the sound,” says Brianne Howell, a resident of west San Francisco, who shot a video of the bridge humming on one of her regular walks along the coast. “It reminds me of the weird sound in a horror movie. It’s sad to have to remove it.” Construction of the Golden Gate Bridge was started in 1933 and completed in 1937. The bridge spanning the Pacific Ocean, connecting the city of San Francisco with Marin County, has a length of up to 2,700 meters and a ground height of nearly 90 meters. . The Golden Gate Bridge is not only famous for its arduous construction process, but is also known as a tourist magnet of the United States.

Waking up in the arms of water Your shoulder is smooth and clear Disappeared in waves again… *** He calmly clung to the grass Call me in the open sky And the night just melted away too quickly. *** Can’t hear my voice Only the sound of lilies can be heard But I believe you heard. *** I heard So the stump just watered so quickly absorbed The dew-drenched phoenix dome was on fire this morning The dried field corns rattled. *** Plunge into the ground with thirsty toes The new leaf that emerges resets the lyrics The fire was burning in the quiet space From the feeling that has just fallen and broken. Comments Close your eyes and hear, in the stillness of your thoughts, the echo of the dried corn that has just hit the ground, breaking out into the sound of summer. The poem is an echo that awakens the sky, awakens the morning, awakens the fire in the dew-drenched phoenix cluster. Close your eyes and see, in your imagination, the smooth and soft image of water, fluttering next to a lotus flower, a lotus leaf, a gentle and shy shoulder. The poem is a flash of light that reveals secret images. Close your eyes and feel, a waiting in the thirsty earth, a new song in the sprouting leaves, a turning towards the light. The night is over, the old feelings are gone. Clinging to the grass, looking up at the wide sky and calling out, I know you heard, a new life begins.

Photo: Apple Insider Apple claims that all Apple Music users will get improved sound with Apple Music Lossless, Dolby Atmos, but to use this feature users also need to have the right headphones. Apple Music will get its first major update with the launch of Spatial Audio, Dolby Atmos, and Lossless Audio in June 2021. Apple plans to make its entire library of 75 million songs streamable route at a new, higher quality (Lossless). Headphones that use the Dolby (Spatial Sound) feature The Dolby Atmos feature is automatically enabled if the user owns the following headphones: – AirPods – AirPods Pro – AirPods Max – BeatsX – Beats Solo3 wireless – Beats Studio3 – Powerbeats 3 wireless – Beats Flex – Powerbeats Pro – Beats Solo Pro With any of these devices, Apple Music will automatically switch to Dolby Atmos when available. Some other headphones can also be used, but they do not switch automatically. Instead, the user has to go to Setting , Music , Sound and switch settings Dolby Atmos newly made Always On . However, with the Lossless Audio feature, only a few of the above headphones can be used. In fact, no wireless headset device can use the Hi-Res Lossless Audio feature. Apple has confirmed that even AirPods Max does not support Hi-Res Lossless. To use this feature, Apple notes that it requires an external device, like a USB to Analog converter. Apple devices will play Lossless audio As well as headphones, many Apple devices are also capable of playing Dolby Atmos and Lossless Audio from their built-in speakers: – iPhone 7 and above – iPad Pro 12.9 inch (3rd Gen) – iPad Pro 11 inch – iPad (6th Generation) or later – iPad Air (3rd Generation) or later – iPad mini (5th Generation) or later – MacBook Pro (2018) or later – HomePod and HomePod mini While consumers won’t be able to listen to Lossless Audio via HomePod and HomePod mini at the time of launch, Apple has confirmed that a firmware update will be supported to enable these special features. this. Photo: Apple Insider Listen to Lossless Music on Apple TV, iPhone, iPad and Mac Lossless Audio will require users to use the latest operating systems such as iOS 14.6, iPadOS 14.6, macOS 11.4 or tvOS 14.6 or later. For Apple TV, iPhone, iPad, and Mac, users must manually enable the new sound quality. Go Setting , Music , Sound quality . There will be an option to enable Lossless . To use this feature on Apple TV, users will need to connect the TV to a compatible speaker device. Also for uninterrupted Lossless audio streaming will depend on your internet connection. Apple confirmed that users can switch between Lossless and Hi-Res Lossless depending on whether they are on a cellular or Wi-Fi network.

Create a clean path from the speaker to the listener’s ear The perception of stereo sound depends on subtlety and in particular on the presence of live sound as well as the immediate feedback that follows. Incoming sounds play a general role in what you’re hearing, but they’re not as important in stereo as the “first-in” effect (the latter is considered unimportant by the ear/brain’s decision). spatial and positional information). Now do you understand what we mean by “clean road”? You don’t need anything on the floor or anything else close to the path from the speakers to where you sit. The floor and ceiling of the listening room should be flat and smooth because high frequency reflections will be minimized. If the ceiling is not very high, it is better if it is made of a soft and smooth object. The problem here is that rough materials, such as appliances and furniture, will cause the sound to be distributed unevenly. This is one reason why the stereo effect is blurred and the ideal performance cannot be obtained. A friend in the test room asked me to close my eyes to test the change of stereo sound when there is an obstacle in front. When the music plays, I feel the change quite clearly, the stereo comes out in parts, becomes distracting and the sense of space is seriously affected. Then my friend told me to open my eyes. What surprised me the most was that he just silently placed the CD cases on the floor symmetrically between the speakers and a few in front of us. This is obviously not a huge physical change, but it does sabotage stereo performance a lot. So what if you put a coffee table or put a few remotes on it symmetrically with two speakers and in front of a music chair? Maybe it will be convenient for you to enjoy the melodious music while sipping a cup of coffee, but you will certainly not be able to fully feel the stereo performance. Get rid of objects next to you, use a chair with a low back Although using a chair with a low backrest, the arrangement of the chair as shown in the picture makes it impossible for both listeners to experience the stereo effect. Hard objects near your ears along a straight line are seen to greatly affect when you listen to music. It’s best to sit in a chair with a very low back, as that will put nothing near your ears. If your back doesn’t adapt to this, you should at least use a chair that doesn’t go over your head and make sure it’s soft. Hard leather sofas become weak points because they reflect high frequencies. If you are sitting alone, cover the area behind and near your head with a cloth curtain. Because otherwise, a lot of high frequencies will be scattered before reaching you, or in other words, the back wall of the listening room should design sound-absorbing materials or accessories. But using a low chair is still best. Try it! You will be surprised how much better your system will sound. Symmetry rule Stereo sound is based on symmetry between two channels. For the latter, where people are exposed to large amounts of treble diffusivity, the role of symmetry is diminished. But for anything that comes first with the sound of low frequencies, the role of symmetry is indispensable. In the old days, when many audio players didn’t understand how stereo really worked, and especially didn’t fully appreciate the importance of the intrinsic tonal time difference, many would try to make adjustments. difference between the two channels by electronic means, i.e. adjust the equalizer and use a separate equalizer for the channels. The result was, of course, a disaster, because analog equalizers and EQs couldn’t deal with asymmetric timing effectively. When that happens, the actual digital signal processing (DSP) may be full of detail, but the problem lies in the accuracy. So it’s better to make the whole system as symmetrical as possible from the start. As always, the tuning DSP room works best when there is a lower frequency response peak and sag and is less demanding for correction (the one exception is the very wide, very useful bass correction. useful in practice). Part of the task of symmetry is on you, which is to keep the two speakers evenly spaced. In general, everyone does this, but they don’t do it fully and carefully. Let’s take a quick look at the numbers. People can hear a time difference between the two ears of about 1/100,000 of a second. But let’s stay conservative and give it only 1/50,000th of a second. How far will the sound go in 1/50,000th of a second? Well, a millisecond (1/1000 of a second) is about a footstep. So 1/50,000 is about 12/50,000 feet, which is about a quarter of an inch. So if you want stereo speakers, you need to get them within a quarter of an inch. Time is a measure! Mark the spot and keep it there. Sit near your speakers loa There will always be some sound coming soon that you really don’t expect. So try to make them symmetric and have smaller amplitudes, but there are bound to be some limits. The way to minimize their effects is to make the live sound appear as early as possible. Sitting close to the speaker is how you do this. Of course, you also can’t sit too close, because most speakers depend on a certain distance for the accuracy of the drivers. And to some extent, you need some distance to avoid hearing the microscopic vibrations because that can make the speaker more visible than the music source. But you’ll get the best stereo sound if you sit reasonably close to the points. Many people sit too far and to the far end of the room due to the fact that the music room is too long. Sitting closer to the speaker changes the direct sound reflection ratio. You should also sit away from the wall behind your back, and the speakers should also be away from the wall behind them (unless they are designed to be wall-mounted), because positioning the speakers and listeners too close to the wall will cause discomfort. benefit the sound of a stereo system. Need a soft room Many recordings (CDs or LPs) are made with the expectation that some room sound will be added as the music plays. A few other recordings were made with the expectation that they would not be echoes when heard. But all those effects don’t stand a chance if your listening room is too small. In my opinion, the best stereo sound should be presented in an RFZ (no-reflection room) room. In such a room, early incoming direct sound will be in moderation, and sound reflection will soon be absorbed. After you hear the live sound, the listening room will appear to be assisted by sound diffusion, where discrete sound reflections are not evidence, or the sound will arrive too late after the initial sound. arrived. As a result, live sound is heard more clearly, without being confused. While building an actual RFZ room is quite a challenge, you can handle it well by making a “soft” listening room, which will especially help the treble get the most out of it. In addition, a soft acoustic environment will also result in more harmonious notes. If your music room has a large picture, use fabric drapes to cover it while listening to music. In particular, the wall of the music room made of glass would be a disaster. A few years ago, a friend brought to my apartment a system to edit rooms. Then this apartment had a spectacular view, located on a high ground and had a long wall of nothing but glass and steel support. But when it comes to music, it’s clear this room can’t get the most out of it unless I add some curtains. Sit still and close your eyes Part of that symmetry is placing the music chair in the right position. Unless you move the seat straight forward or backward, you will end up in an asymmetrical position! But there is another way of sitting that is really subtle and more important than the effect. This is a complex topic so I can only give an overview. As the brain builds perception from raw data during processing, what we “see” or “hear” is not the same as light in our eyes or sound in our ears. Because it’s just a mental construct. This particular mental construct often includes the following surprising things: it will use many signals, but if one signal is lost, the brain will recognize it as lacking and simply reprogram itself to use other signals. This may sound crazy, but there’s a simple visual experiment you can illustrate with that principle. Look at a photograph with a lot of three-dimensional (3D) material in it or at a painting with strong perspective, then you will get some impression of a three-dimensional image. But if you look at them with one eye closed and the other through a short tube that blocks the background and only allows you to see the picture, there is a surprising increase in the perception of three-dimensional images. If you’ve never tried this, you’ll have a hard time believing that your eyes can see the background around the picture of the picture (the way you usually look at a picture), and the brain will pick up some signal about the picture. that three-dimensional perspective. But the brain will also receive information that the surface of the painted or printed picture is in fact only two-dimensional. Binocular vision shows a fatter picture, and the background shows it too. So the brain is getting conflicting signals, which means it allows you to see some of the three-dimensional image, but not all of it. When you look with one eye and don’t see the background, the signal to that fatter image is blocked. Going back to the world of sound, one of the ways the brain detects the position of an object, the shape of the hearing room, of space, or in general auditory terms, is to slightly move the head and Notice the changes in the sound. People will have the feeling that they suddenly “sink into” the space of stereo sound. There are some people who choose to sit absolutely still. This will put the listener in a quiet state, and obviously very suitable for listening to music. And, to my ears, the stereo got better. Finally, closing your eyes also eliminates cues that a person can’t hear in a concert hall or a stadium, but can hear from the speakers in your listening room. In short, sit with your eyes closed, with your head completely still, in a chair near the speakers in a “soft” room and in the correct symmetrical position with no obstructions in the line. between you and the speaker. If you do all that, I guarantee your stereo system can perform at its best. Hope you find the best stereo sound!

In the last few years, streaming content over the internet (streaming) has been the predominant form of communication with music and other audio content, from podcasts to streaming services. Stream high quality music. Besides, there are still some people who store their entire music library on online data drives, USB sticks or other digital playback devices. Digital is the most convenient way to transmit music. Of course, there are still quite a few users who choose to keep the large collection of CDs or other discs that they have devoted all their time and energy to owning for many years. Whatever the situation, Mark Levinson No.5101 is the best solution. It’s a high-quality streamer, SACD player and standalone DAC, designed to deliver the best quality, unleashing the full potential of your recordings. Digital recording technology in the past few decades has made great strides and improved significantly with very wide bandwidth. The extended dynamic range allows users to hear and feel the sound as if they were in the studio or in concert. Especially with products such as the SACD No.5101 player, which is capable of recreating all the original sound forms, listeners can fully enjoy the most authentic and natural melodies. The Mark Levinson No.5101 has multiple ways of connecting to a digital input that allows users to stream or retrieve music data from a storage hard drive or USB. The digital circuit used on the No.5101 features Precision Link II processing technology that engineers developed for the 5000 series. The Precision Link II DAC can receive both native PCM and DSD signals, so the conversion of these signals takes place precisely. Less “bits” but more frequency bands make the listener feel more analog. Mark Levinson engineers pay particular attention to details of electronic design such as circuitry and component performance. The front of the SACD No.5101 player does not have any buttons, so the height of the device is reduced, helping to increase the aesthetics of the product. To make the design more sharp and outstanding is not simple, the engineers have overlapped the glass layer with the red light display screen behind, along with the buttons made of high-grade aluminum material. and refined SACD action. These components are neatly and simply arranged, giving the device a more beautiful and luxurious front. The Mark Levinson No.5101 SACD player offers users various digital filter options, suitable for both DSD and PCM playback. Each of these filters makes a very small difference in the performance of the music, so depending on the needs and preferences of the user, the user can choose the appropriate filter. The music streaming application allows users to choose one of the popular streaming systems to play on model No.5101. It is the efforts in the development and application of complex engineering technologies to create high-performance products with ultimate flexibility, SACD Mark Levinson No.5101 has brought home the CES award and the iF Award about exquisite luxury design for its talented group of engineers. With cutting-edge technology, impeccable Mark Levinson sound quality, and award-winning design, the SACD 5101 is worthy of being a staple in Mark Levinson’s 5000 Series. Reference price: 135 million VND Mark Levinson brand is officially distributed by:

This tablet has an enlarged screen size of 8.7 inches, Dolby Atmos multi-dimensional sound technology, 8mm thin and 371g light. Galaxy Tab A7 Lite owns an 8.7-inch screen Galaxy Tab A7 Lite owns a large screen with a display size of 8.7 inches with a screen ratio of 1340×800 pixels, a thin screen border that helps the screen body ratio (screen body ratio) up to 81%. Solid metal frame design. Despite using metal edges and owning a large screen size, Galaxy Tab A7 Lite has a light weight of 371g, making it easy for users to hold. Up to 81% screen-to-body ratio The machine has a unibody metal frame design The sound on the Galaxy Tab A7 Lite is also improved thanks to a dual speaker system that supports Dolby Atmos technology to create surround sound effects to optimize the audio-visual experience. Galaxy Tab A7 Lite is equipped with Helio P22T processor (MT8768T, Quad 2.3Ghz & 1.8Ghz) with multi-application and graphics performance scores increased by 75% and 92% respectively compared to Samsung Tab A8. RAM capacity is also upgraded to 3GB. Galaxy Tab A7 Lite equipped with Helio P22T processor, 3GB Ram The battery of the device is 5,100mAh with 15W fast charging technology and Type-C connection port Samsung has integrated a battery capacity of up to 5,100mAh with 15W fast charging technology and Type-C port for Galaxy Tab A7 Lite, to give users a seamless experience. Galaxy Tab A7 Lite will officially hit shelves at smart device distribution stores in Vietnam on June 3, 2021, including 2 color versions: Cosmic Gray and Silver Galaxy.

Galaxy Tab A7 Lite is equipped with Helio P22T high-performance processor (MT8768T, Quad 2.3Ghz & 1.8Ghz) with multi-application and graphics performance scores increased by 75% and 92% respectively compared to Tab A8 generation. The RAM capacity is also upgraded to 3GB, making the device ideal for users who are passionate about the world of entertainment. Considered as a popular tablet with a large screen with a display size of 8.7 inches with a screen ratio of 1340 × 800 pixels, the thin screen border helps the screen body ratio (screen body ratio) up to 81%. . Galaxy Tab A7 Lite has a unibody metal frame design Despite using metal edges and possessing a large screen size, the Galaxy Tab A7 Lite is quite light in weight (371g), making it easy for users to hold and operate with one hand for a long time without causing any discomfort. convenient or uncomfortable for the user. The sound on the Galaxy Tab A7 Lite is also improved thanks to the dual speaker system that supports Dolby Atmos technology to create a vivid surround sound effect. The product delivers an immersive and immersive audio experience for all entertainment with a battery capacity of up to 5,100mAh with 15W fast charging technology and Type-C connector. Galaxy Tab A7 Lite will officially go on sale at smart device distribution stores in Vietnam on June 3, 2021, including 2 color versions: Gray and Silver with the suggested retail price of 4,490,000 copper. Especially, when buying Galaxy Tab A7 Lite from June 1 to June 30, customers will be offered a special package including: 0% Interest Installment Plan, Free Movie and TV Package TV360 for 6 months.

Primates make laughter when they play. However, laughter in animals often means an invitation to mate, join a herd, or find food. The meaning of animal laughter Laughing together helps people connect and bond. Although the reason for laughing can vary widely between individuals and groups, this sound can still be distinguished from crying, screaming, groaning or shouting. In humans, laughter expresses a wide range of emotions, from positive such as amusement to negative such as annoyance. People laugh when they hear an interesting story or when they see funny things. But what about animals? Do they laugh and is the reason they laugh the same way humans laugh? It’s hard to tell if animals have a sense of humor like humans. A study published in the journal Bioacoustics in April 2021 found that when communicating, animals sometimes make sounds that have a comforting, pleasant nuance. Sasha Winkler, lead author of the study, at the University of California, Los Angeles (USA), said that rhesus monkeys (scientific name Macaca mulatta) often pant when playing. This is the inspiration for her and her colleagues to expand their research on animal laughter. They looked to see if other animals let out gasps like rhesus monkeys during play. The researchers say that such sounds closely resemble human laughter. They continued to study the prevalence of laughter among animals. The team identified 65 species that “laughed” while playing, most of which were mammals. Some birds also make cheerful sounds. This analysis helps scientists go back to the evolutionary origins of laughter in humans. When playing, animals may cry or laugh to keep interactions at a harmonious level, not becoming aggressive. Unlike fighting, the concept of play in animals is often mating, foraging. Play can be clearly seen in primates because their facial muscles show human-like expressions when playing. The study grew out of an experiment from 2017 on kea parrots living in New Zealand. Experts recorded the laughter of the kea parrots and played them back for others to hear. As a result, these parrots will play together relatively closely. This study shows that the laughter of kea parrots is like an invitation to others to join the flock or to feed together. Investigation results show that mammals, especially primates, rodents, carnivores and cetaceans emit similar sounds. These sounds are only emitted when playing, such as the whistle like the whistle of a bottlenose dolphin (scientific name is Tursiops truncatus), the hiss of a mouse. Most primates, including chimpanzees, gorillas, monkeys, and baboons, exhibit laughter by: panting, smirking, chuckling to “click, clack” and loud cries. . Birds emit laughter to attract their fellow humans. Laughing is not just for fun Research also shows that fish, amphibians and reptiles do not produce laughter because this group may not organize play activities. However, laughter between humans and animals is quite different. Usually, people’s laughter shows that they are having fun or sharing their joy with those around them. People also put laughter into communication to express their attitudes and feelings towards the behavior of people around them. For example, smirking, sarcastic laughter, sarcastic laughter to express a reaction of praise or disapproval of the actions of people around. But in some animals, laughing is not synonymous with cheerfulness. For example, hyenas often laugh when feeling dangerous, threatened, attacked or simply upset. Human and animal laughter also differ in volume. For example, older hyenas often laugh at a low pitch while young hyenas’ laughter is high, even shrill. Some species laugh very softly, just enough for the other person to hear. While human laughter is loud, loud and nuanced. Before Winkler, in 2000, Jaak Panskeep, a psychologist and neuroscientist working at Washington State University, USA, discovered that tickled rats emit chirping sounds similar to the sounds they make when they play. Some lab rats liked to be tickled so much that they simulated this amusing activity. From there, Panskeep and his colleagues began to seriously study the play of animals. He identified seven basic emotional expressions activated by the mammalian brain. Since then, he has applied this result to the study of human emotions and found a treatment for depression in humans. Panskeep has clinically developed an antidepressant, named GLYX-13. He considers this modulation product to be proof that scientists should seriously evaluate the emotional state of animals. Animal studies could pave the way for the development of psychopharmaceuticals for humans. He also added that we think rats and monkeys can laugh because they are smart. But in fact, intelligence is not a funny factor. Play in any animal can stimulate laughter, increase cognitive ability.

Recently, LG has launched an improved OLED evo screen technology, which increases the image brightness by 20%, the detail and texture of the image is also significantly improved. In addition to the G1 series using OLED evo panels, LG also introduced an upgrade for other TV lines including OLED Z1 Signature 8K, OLED C1 (optimized specifically for gamers) and OLED A1, OLED B1 with a premium level. more affordable price. In particular, high-end models such as G1, Z1 and C1 are also equipped with the 4th generation AI α9 artificial intelligence image processor, a chip that uses deep learning algorithms to analyze and optimize. content. Through AI Picture Pro, the TV automatically analyzes the scene, brightness/darkness… and references a database of over a million images to choose the best display setting. Meanwhile, AI Sound Pro can identify voices, effects, and frequencies to optimize sound by genre. The company said it will update WebOS 6.0 for all LG OLED 2021 product lines. The new version will automatically suggest related programs based on user preferences, providing a convenient experience. and interesting. General Director of LG Electronics Vietnam, Mr. Sung Woo Nam said: “In the context of increasing demand for home entertainment, consumers not only have stricter requirements for functions, but also higher expectations. about the experience and aesthetics of technological devices. With great strides forward, LG OLED G1 promises to bring you a completely different feeling when entertaining at home.”

Note: The sound used to change is the one available on Apple Music Step 1: Access the app Shortcut keys . At the bottom horizontal bar of the application Shortcut keys , click on item Automation > Create personal automation entries . Here, drag to the last tab of the Automation item, select the item Charger . Step 2: In the item interface Charger Automation > Press Next to proceed with the installation > Select More Actions . Step 3: At the directory Action , search Apple Music (Music) . In the task Music , press select Play music . Step 4: In the task tab Play music > click “ Music “. Here, you choose a song or a sound that you love. Here, I choose the song “Let it snow”. Press the + sign next to the song to add music. Step 5: After adding music is complete, click Save Changes on the task setup page > Disable Ask Before Run. Step 6: Press Accomplished to complete. Good luck. Han (th)

Sticky rice “morgue”: The reason there is this weird and creepy name dish is because the sticky rice car is located right opposite the funeral home on Nguyen Tri Phuong Street (District 5). Sticky rice “morgue” is left in banana leaves, when holding it hot, you want to burn your whole hand. A pack of sticky rice consists of a piece of white sticky rice with the palm of your hand, topped with thin pate, sausage, cotton balls, peanuts and sprinkled with fried onion fat… interesting. Broken rice “garbage”: There are many “top” broken rice restaurants in Saigon and when it comes to mentioning, it is impossible not to list there the famous landfill broken rice restaurant on Le Van Linh small street, behind the area. Xom Chieu market (District 4). The rice here is standard broken rice, the food comes from grilled ribs, fried chicken, skin fibers, meat rolls to omelettes, sausages, braised meat, shrimp, stuffed squid, shumai … each dish is presented. Beautifully decorated, lustrous, lustrous colors Banh mi “o-lip”: For a long time, Saigon has been considered the birthplace of the famous Vietnamese-style burger and if there is any Saigon bread address that is mentioned and recommended by many international websites. Perhaps it is the “legendary” bakery that many people know called “banh mi oh” located on Le Thi Rieng Street (District 1). With the price of up to 30,000 VND / drive, but every evening until late at night, there is always a group of people with dozens of large and small motorbikes and cars standing in the street of Le Thi Rieng to queue to buy cakes. Wild duck: In fact, “evil duck” does not exist in the world. This dish has the correct name of “mourd duck”. This type of egg is basically cancerous, so when boiled, it will be quite smelly, slightly open and rotten. However, some people are “addicted” to the smell and taste of this rotten duck egg, thinking that it is greasy, fatty, not choking like eating fresh chicken eggs. Wild ducks are sold on street vendors in every corner of Saigon. Salt and chili noodles: This is also one of the unique dishes that many people mention the name of cuisine when it comes to Saigon. This strange dish is sold in a small alley on Tran Ke Xuong street (Phu Nhuan district, HCMC). The ingredients for making a bowl of salt and pepper noodles are mainly pre-fried shrimp noodles. Noodles are dipped directly into a pot of boiling broth on a charcoal stove. After that, the noodles are picked out, put in a bowl and added with pieces of pork, seasoned with spices, fried onions, pepper, chili, fish sauce… In particular, this noodle dish cannot be without salt and chili. When eating, people will mix noodles with chili salt to create a visually appealing bowl of red noodles. Photo: IT. Invite readers to watch the video “Changing the tray of 1 million with only a few dishes, without rice and sticky rice”. Source: VTV TSTC.

The shoe is controlled by an artificial intelligence called InnoMake. Photo: Tec-Innovation According to Oddity Central (UK), called InnoMake, this smart shoe aims to become a modern alternative to the decades-old walking stick, which millions of blind people around the world use. the world is dependent on to travel as safely as possible. The shoe is now equipped with sensors that detect obstacles and warn the user through vibrations and audible alerts on smartphones with Bluetooth connectivity. This sounds very impressive already! However, the company is working on a much more advanced version of the shoe. It is integrating both the camera and artificial intelligence (AI) to not only detect an obstacle, but also know what it is. Photo: Tec-Innovation The shoe model is now equipped with sensors to detect obstacles. Photo: Tec-Innovation The company Tec-Innovation has partnered with the University of Graz in Austria to develop cutting-edge learning algorithms that analyze information from sensors and cameras built into InnoMake shoes. From there, the shoe can determine if the area has obstructions and is safe to walk through. It even distinguishes many different types of obstacles. “It not only warns me that I’m facing an obstacle, but gives information about that type of obstruction as well. Because knowing whether the obstacle is a wall, car, or ladder makes all the difference.” big,” said Markus Raffer, one of the founders of Tec-Innovation. Surprisingly, Raffer is also a blind person. Shoes can distinguish different types of obstructions. Photo: Tec-Innovation “Ultrasonic sensors at the toe of the shoe can detect obstacles up to 4 meters away. The user of the shoe will be alerted by a vibration mechanism and an audible signal. It works very well and has helped me a lot,” added Mr. Raffer. The current version of the InnoMake shoe is on sale on the company’s website for $3,850 per pair. While it doesn’t yet have a camera function as the company continues to work on it, the shoe is still an impressive piece of technology, possessing advanced modes and algorithms that make it as easy to use as possible. Rich is integrated with both camera and artificial intelligence (AI). Photo: Tec-Innovation Tec-Innovation’s website says users can make changes in real time using buttons on the back of the shoe. The operating range can be increased to 4 meters at the touch of a button. “You can activate smart mode, which automatically pauses when you sit. You can also use InnoMake as a scanner to gather information about your surroundings through every step,” the company said. said. This advanced system is integrated in the toe cap, which is water and dust resistant. It’s powered by a super-durable battery that can last up to a week, depending on how often you use it. The battery can be fully charged in 3 hours using a USB cable. The shoes are water and dust resistant. Photo: Tec-Innovation The next step for Tec-Innovation is to use the data collected by its system to create an all-view navigation map for the visually impaired. “At the current stage, only shoe wearers benefit from the data it collects as they walk. It would be better if this data was used for others as a navigation aid as well. “, explains computer scientist Friedrich Fraundorfer.

User can go to Sound to choose the types of noises that the device will detect and notify such as dogs barking, car horns, doorbells, running water, crying babies, etc. There are 13 different types of sounds supported by Apple. The sound recognition feature on iOS helps detect a variety of noises. Screenshots. Once activated, the . icon Sound recognition will appear in the Control Center, helping to quickly select the types of sounds to recognize. Users can select multiple types of sounds to recognize simultaneously. When a sound is detected, the device sends a notification. According to the PhoneArena , people with hearing problems should enable this feature to be alerted to doorbells, smoke alarms, etc. In addition to Apple, some companies like Google or Amazon also equip similar features for products. With the Amazon Echo smart speaker, users can set it up to alert when an alarm sounds or glass breaks. Meanwhile, Google Pixel smartphones can use microphones to support car accident detection. However, Apple recommends users not to rely too much on the feature in cases of danger, emergency or navigation. In addition, you also cannot say “Hey Siri” to activate the virtual assistant when activating the feature. Smart iPhone wallpapers Designed to save your iPhone’s battery.

Mysterious sounds often occur from crescent-shaped sand dunes. They say they often emit mysterious sounds, ranging from soft hissing, melodious kite flutes, to roars, or terrifying explosions, that can be heard from miles away. As real as
how? Strange sound from sand dunes The first mysterious stories of strange phenomena in the desert are said to have come from the legendary explorer Marco Polo in the 12th century. He described these anomalous sounds as “sounds emanating from various types of music. instruments, drums, and the clash of arms”, and claimed that they were the “works” of evil spirits lurking in the desert. Up to the 19th century, these monstrous sounds still toyed with adventurers in the wilderness, even mentioned by Charles Darwin in his travel diary, but he could not explain this strange phenomenon. A remarkable documentary on strange sounds was produced by the British diplomat and explorer, Bertram Sidney Thomas. In 1930-1931, he became the first Westerner to cross the Rub ‘al Khali, or “Empty Quarter”, a vast expanse of desolate expanse of the Arabian desert. During this expedition, he noted the “loud sound of a musical note” emanating from a gentle sand slope. On another occasion, he even heard musical notes emanating from under his camel’s feet. The adventurer was also awakened by high-pitched sounds while sleeping in the tent. When he asked his local guide about the origin of these sounds, he was told that they came from spirits conversing with each other in another world. An explorer named John Philby who was also in the “Empty Quarter” at the same time as Thomas said of what he heard: “Suddenly in the large area began to emit sounds like a siren. or the sound of an aircraft engine, it sounds quite fun, rhythmic and has amazing depth. This “sand concert” lasted about four minutes, which was enough for me to record every detail after I recovered. Such strange sounds, commonly known as “singing sands” or “songs of the dunes”, have been reported for centuries, from places as far away as North and South America, Africa, and Europe. Asia, British Isles, Arabian Peninsula, Hawaiian Islands. The cultures in these regions all have their own legends and myths surrounding this phenomenon. For the Arabs, they were created by desert spirits called Jinn. Many other places for these strange sounds come from lost cities underground, or from ghosts, gods, demons, mythical animals, even demons. The cause has not been determined Explorers sometimes heard musical notes emanating from beneath the camel’s feet. Explorer Philby was one of the first to explain this phenomenon scientifically. He realized that the sounds he heard seemed to coincide with a rain of sand falling from where one of his guides was sitting. He then heard the sand make various noises, such as barks, groans, booming music, or the sound of a trombone or organ, when they were disturbed with different objects. . He thinks that sand itself has certain properties that help them make these sounds when subjected to friction. However, he was not sure about the exact mechanism of this phenomenon. The phenomenon of “singing sand” has many different forms. In the dunes, they often emit sounds such as rumbling, groaning, humming or explosion, thunder, low-flying planes, which can last 15 minutes and reach up to 105 decibels, often heard at a distance. The mysterious sound occurs almost exclusively from crescent-shaped sand dunes, known as barchan, accompanied by wind blowing, or someone walking along a mountain top. “Singing sand” can also be heard at some beaches in the form of hissing, singing, whistling or screaming. In both the dunes and on the beaches, the variety of sounds is very different, the frequency range in which they are emitted is also different. So far, no one has determined what causes these strange sounds, nor why they emit so many different forms with different intensities. It has been suggested that it is due to the friction between the large number of sand grains. The size, texture and uniformity of the particles determine the sound pattern and volume produced. One theory is that it is the result of sound waves bouncing back and forth between the surface of the dune and the surface of the wet layer. According to some scientists, the sound comes from the compression of air between sand grains, or from sand sliding, the movement of one layer of sand relative to another. However, there is no convincing hypothesis. It is worth noting that this phenomenon is quite rare in nature, with only 35 known locations of singing sands around the world. The “Song of the Sand Dunes” has been part of the myths and legends of many different cultures for thousands of years, but so far, despite great advances in science, natural phenomena This is still a mystery waiting to be solved.

Touching the sound of the small rain outside the eaves, sobbing, remembering the distant childhood days. Round raindrops reflect the father’s low legs, carrying all the pots and pans to catch the leaking thatched roofs; The sound of the mother’s lullaby shivering from the cold, the thin arms embracing the child’s dream… Loving the mother’s bare feet bleeding when running, loving each wrinkle on the father’s forehead imprinted with the flash of lightning in the East… Everyone’s youth is like summer. But showers often come suddenly without warning. Therefore, the youth never gets wet a few times. The trembling hand held by the phoenix root on the day of parting, until now the warmth is still lingering. Bewilderedly watching the white ao dai disappear into the wedge-like stream of people, the back of my bicycle was only full of rain. The green promise hidden in the bag, do you remember or have you forgotten? Randomly meeting again, aimlessly calling the rain that year, people laughing, reminding them of children’s stories. At the end of the day, the showers filled the city with sighs. At the corner of the street, a hawker stood nestled on the porch of a house. Her eyes were immense as she looked at the white rain, the shriveled load lying in the old basket. Someone pumped a car quietly sitting on their knees at the foot of the overpass while the wind whistled overhead. The thin raincoat could not hide the bruised lips that were trembling from the cold. There was a woman with a hat on her back, riding a bicycle to turn a gray storm, guarding the three stations with all sorts of plastic bottles, cardboard, scrap aluminum. Any rain will stop. A fierce storm will return peace. Woke up this morning, the rain that had been pouring down all night washed away a clear morning. It’s been a long time since a child far from home has been able to breathe in the steamy smell of earth. The screams of the hawkers and the clattering footsteps seemed to be busier than usual. Sipping hot coffee, mumbling a few unlucky verses: “Rain connects heaven and earth. Rain connects me to me…”.

Survival instinct Ueshiba Morihei is famous as the master of the martial art of Aikido. People in the world know that there are many strange things surrounding this character, to the point that they say that no one has been able to knock him down. During a practice session, UeshibaMorihei accepted the challenge of the practitioners, trying to use his whole body to push him off the mat. However, the ancestor remained motionless, until he shouted “Kiai” loudly, causing the students to fall to the sides. Everyone didn’t say a word, just felt shocked because the aftershock of the sound was still echoing in their ears. Sascha Frühholz watched for a long time the videos of the ancestor UeshibaMorihei’s training, with a terrifying “Kiai”, which stunned opponents and momentarily lost their composure. The sound is sometimes like a terrible thunderclap, sometimes like thunder in a thunderstorm. This makes sound scientists like Sascha Frühholz suspicious: does a scream contain such tremendous power? For a martial art like Aikido, shouting “Kiai” represents confidence and fierce will, transforming the human body from sluggish, sluggish state to excited and ready to fight. Our body is entering the subconscious working mechanism, so that when the mind speaks to control behavior and manifests outside, we officially operate in a conscious way. As a kind of signal, Sascha Frühholz believes that screams create multidimensional emotional expression, but are always forgotten by the modern life that has led us to slip into a regular Disney-style safe state, all day long. only laughter and occasional sadness. Sport is like a battle, between winners and losers. Since appearing on Earth, humans have always shown the dominant instinct, wanting to use power to threaten and overwhelm the opponent. Sascha Frühholz associates the shout of “Kiai” with the most primitive weapon of prehistoric times, to ensure the survival of any species. Perhaps, the deepest nature of the scream is like a self-defense shield in the community of creatures, not just humans. In other primates and mammals, scream-like calls are often used as alarm signals specifically for negative and social conflict situations. One summer afternoon in 2019, Harold Gouzoules sat quietly across from Sascha Frühholz inside a soundproof lab. The screams of monkeys from the tape are loud, loud, shrill and make ordinary people feel headaches. They live in a human-like society, and have become so intelligent that they develop distinct scream patterns that not only act as a warning but also reveal the type of predator among them, thereby protecting children and other family members. The two scientists looked at each other in amazement, at the printed sheets of paper crisscrossed with undulating bands of sound waves, representing different pitches and volumes. This led Sascha Frühholz to believe that humans are probably descended from individuals who were good at shouting, as well as having come to an agreement on how to “decode” the screams of their fellow humans, creating a mode of communication. unique news in prehistoric society. The panic-filled scream in “Psycho” has become a cinematic icon. Panic and fear Harold Gouzoules replayed Alfred Hitchcock’s horror masterpiece “Psycho” several times, listening to the haunting desperation hidden within the panicked screams of victim Marion Crane. The scream has become a symbol of a painful death, through the thin veil to reveal the full horror that follows. Human emotions are diverse, and of all the sounds humans make, nothing captures our attention more than a scream. And of the many human screams, the scream of fear is the most prominent. Each scream has at least one point of its own that makes them unique. It could be a low pitch or a chaotic howl, or it sounds like you’re losing control. Screams vary in loudness from 30 to 150 times per second, giving them a unique place in the soundscape of human voices, thus often attracting great attention. No wonder, Marion Crane’s scream in a bloody shower is often considered the scariest ever brought to the silver screen. Then, the image of women screaming in terror became a mainstay of Hollywood – even when the film was silent. Beyond the boundaries of movies, shrill sounds become the fulcrum for people to express their desperate pain, anger at themselves disguised by fear. Harold Gouzoules reminds us of the mystery of the creepy, anguished, painful screams coming from the “deep pit of hell” beneath human feet. Harold Gouzoules flipped through a hundred-page file on the 1970’s “race to the ground”, his eyes fixed on his own conclusion: “I believe that the strange sound comes from 12,000m deep underground. land is not owned by… one person but from… millions of people”. They still haunt humanity to this day, do they come from “cursed souls” in a mysterious unexplored world? Monkeys are so smart that they have developed distinct scream patterns to warn of danger. Game of evolution Alone in a closed room, Sascha Frühholz slowly took a deep breath, then suddenly shouted. Happiness was evident on the scientist’s satisfied face, because the scream unleashed a strong emotion for his idol: The Beatles. Every image of the Beatles’ ferocious ’60s performance appeared in Sascha Frühholz’s mind. The music kept running, people were still swinging, and the screams kept coming, excited but full of obsession. 10 years of existence during the 1960s, The Beatles changed the world a lot, becoming the pride of England in modern history. They brought us “Beatlemania”, the Beatles mania, then when they disbanded in September 1969, fans regretted and couldn’t stop looking forward to a reunion. Sascha Frühholz turned over each page of the Beatles’ research, her eyes stopped at the image of fans’ faces “deformed” because they shouted with joy and enthusiasm when meeting their idols. The scientist has long been skeptical about the true nature of the screams coming from the human throat, criticizing the old theory that always says that screams are painful, full of fear. An encounter with his longtime friend, Dr. Harold Gouzoules, led Sascha Frühholz to interesting conclusions. Not simply a warning like common theories, humans also create high-pitched screams to signal positive emotions such as extreme joy. It sounds simple, but screams actually convey a more complex set of emotions than we think. The odd sound, honed over millions of years, hides many subtle nuances of volume, timing, and inflection that can signal many things. Sascha Frühholz looked up at the scans of the human brain and suddenly noticed that, unlike other human sounds, screams are routed directly to the amygdala – the part of the brain that processes fear, anger, and strong emotions. other paralysis. Evolution has changed the scream, which is no longer a communication signal, stemming from the requirement of complex social context in humans. The two scientists were excited to find three important sites that make up the difference in human screams: the auditory system that analyzes and classifies sounds, the sensory cortex, and the frontal lobes that make decisions about action. . They immediately drew six large circles, each colored with a color representing the six types of emotions that screams contain: from “negative” anger, fear, pain, sadness to “positive.” extreme happiness and joy. They are reminiscent of Edvard Munch’s painting “The Scream”, which depicts an anxious and desperate figure contrasting the landscape with the red sky. The artist’s diary page surprised Frühholz and Gouzoules, when he wrote: “A sentimental scream, of pain and sadness, spreads endlessly through space. If liberated and understood, it will one day turn into a feeling of hope and serenity.”

Le Nam

I’m a pretty neat person. Furniture when going home like backpack, glasses, keys or wallet are stored in the correct tray in a box next to the door. Thanks to that, I rarely have to look for things that are important to me before going to work. However, no matter how neat I am, there are times when I lose my belongings. I dropped the wallet on an acquaintance’s car, and because the wallet fell into the slot under the seat, my friend couldn’t find it. Had it not been found by the car washer, I might have had to go over and over again. These are situations where a misplaced device like the AirTag comes in very handy. I was very excited when Apple introduced the AirTag, but it still has many inconveniences when it comes to real-world experience. Accessories “cheap” in the Apple way Excluding EarPods or chargers, AirTags is Apple’s cheapest standalone product. This accessory has a genuine price of about 800,000 VND, and if you buy a set of 4, the price is a bit lower. However, for many this will not be the final price to be able to use AirTag. The device has a round design and two sides are not flat, meaning it is difficult to secure in the compartment of a handbag. Leaving AirTag in your wallet just makes your wallet look good, while lowering your device’s notification volume. AirTag is also quite thick, so placing it inside thin wallets will make the wallet look up quite a lot. In addition, if the AirTag is placed in the wallet or compartment too thin, the efficiency will also decrease. The solution now is to buy a leather pouch. Although there are no prices in Vietnam, the genuine bags that Apple sells are priced equal to or several times higher than the AirTag itself (from 29-449 USD). Leather cases of craft units in Vietnam also cost about 200,000 VND or more. If you buy this accessory, the price of AirTag will be nearly 1 million dong. AirTag pairs very quickly with iPhone. Due to not being able to buy a holster in time, I used the “bare” AirTag, and immediately understood why a holster was needed. In less than a day of use, leaving this accessory in the backpack and wallet compartment, both the aluminum and plastic sides of AirTag have had scratches. Actually scratches will not affect the function of the device, but for those who require high looks, these are still the points to pay attention to. Well done the main function Connecting AirTag to iPhone is very simple. Just bring the accessory close, the machine will automatically recognize and the set-up takes only about 30 seconds. This is a big plus compared to other finder devices. To find items attached to AirTag, users have 3 ways. First, they can go to the Find My app, choose to show up on the map to see the last recorded location. If you are in the same apartment, you can press the speaker button to let the AirTag play the sound. The third method only applies to iPhone 11 onwards, allowing the display of the direction and distance to the nearby AirTag. The “exact find” function worked quite well, but still occasionally lost the signal. The Find My network with billions of devices running iOS is a huge advantage of AirTag. No need GPS or network connection, users can still find the AirTag when it is near any iOS device. Testing in city conditions, I found the position of AirTag on the map was quite accurate. The challenge will come when you want to find the AirTag nearby. The AirTag’s “speaker” is in fact the white plastic side of this device. When you select a sound feature, the plastic face vibrates to create sound. This sound is only enough to be heard in an apartment, when the background noise is quite small. If you search inside a multi-storey house, or assume your family member has the TV turned on quite loudly, you will be hard pressed to hear AirTag’s sound. This is why you should not leave AirTag inside your wallet too tight. At that time, the volume of AirTag emitted will be much smaller, reducing the efficiency when searching. The search when the AirTag is lost is quite effective, the address is accurate. The UWB wave precision search is also useful, but efficiency depends on the environment. When I tried to leave AirTag in the living room of a 2 bedroom apartment, the iPhone frequently reported “weak signal” when I went into one of the bedrooms. Only when the distance is less than 4 m, and there is no barrier between the iPhone and the AirTag, can the device be able to accurately indicate the distance and direction. Combining all 3 of these features, the ability to find lost items will increase significantly when attached to AirTag. However, there are still environments where AirTag is not very efficient, like in a large apartment, or in the middle of a crowded shopping mall. It is also not suitable if you want to leave it on your motorbike to look in the parking lot, as cheaper and louder accessories are available on the market. It would be disastrous if used the wrong way At launch, Apple stated that the AirTag was an accessory “to track things, not to track people”. The company also integrates a number of features so that users know when someone else’s AirTag comes with them. However, in practice these features all have vulnerabilities. The current AirTag can still be used to spy on others. The first way AirTag notices is sound. According to Apple, after “a while”, if an AirTag is separated from its host device, it will squeal to get attention. The company did not specify how long that period was. Just squeeze or stick the tape around the AirTag and the sound will be very soft. According to the Washington Post , it took three days since the last time away from the owner, the AirTag cried for about 15 seconds, and then rang every few hours. The 3-day period is quite a long time for AirTag owners to keep track of the places the victims visit. Besides, reducing the sound of an AirTag is not difficult. If you detect an AirTag that is not with the same account but has been nearby for a long time, the user’s iOS device will also pop up a message saying there is a strange AirTag. The victim can press play to find the strange AirTag, but cannot access the map or find the exact same as the official AirTag. However, in my hands-on experience carrying the strange AirTag all day, I never get a notification on my iPhone. Also, if the victim uses an Android phone, they won’t receive any notifications. AirTag uses the familiar CR2032 battery, sold in every watch shop. AirTag still has many vulnerabilities to be misused. That’s not to mention if the AirTag owner is spying on a relative and knows their iPhone’s password, that person can go into the Find My app and turn off notification when it detects a strange AirTag. Although Apple promises very well, AirTag can still be used as a tracking device for others. In the future, the company may update to reduce the alarm interval or adjust the notification feature. At present, AirTag still has many major vulnerabilities that can be exploited for the wrong purpose. Should I buy AirTag? If you are an iPhone user and forgetful, AirTag will be a very useful accessory, especially with important objects. The price of nearly 1 million is not high compared to the effort of redoing papers in your wallet, or hitting a car key. AirTag can be said to be a huge reason iPhone users continue to stick with Apple’s ecosystem. However, if you do not use an iPhone, there are many other options on the market, with prices as low as half the Samsung SmartTag or Baseus Intelligent T3.

Users can now use old Samsung Galaxy phones as smarthome devices. Current functions include: Using an improved artificial intelligence (AI) solution, Galaxy devices can more accurately distinguish sounds in everyday surroundings, and users can choose to save certain recordings. . For example, if the device detects sounds like a baby crying, barking dogs, cats hum or knocking on the door, it will send an alert directly to the user’s smartphone and the user can hear the recorded sound again. Devices can also be used as a light sensor to measure the level of the room’s brightness. Users can easily set the device to automatically turn on the lights or the TV through SmartThings if the room becomes darker than the preset lighting standard. To use an old Samsung device as a smarthome sensor, make sure that the user is running the most up-to-date version of the SmartThings app from Samsung. The user will also need one of the smartphones as shown in the list of images below. List of Samsung devices that support Galaxy Upcycling. After making sure this, launch SmartThings, then tap the three-line icon in the middle left, tap SmartApps, then tap the three-dot icon in the middle right. Tap SmartThings Labs, then tap Galaxy Upcycle to start the installation process. After installing the Galaxy Upcycle app, users launch it and choose a sensor type. At this point, the user will be asked to choose a location and room where the device will be. These should match up with anything the user previously set up in the Samsung SmartThings app. Done, the user should now see their sensor online and up and running. Finally, plug in the phone, turn off the screen and let the sensor work. Users may need to visit the SmartThings app again and set up automation that uses new sensor data to perform an action, such as automatically turning on the lights in a room when the general environment is too dim.

WhatsApp is testing a Beta feature to speed up the playback of voice messages After a short activation, WhatsApp released a new version of Android beta 2.21.9.5 to disable this feature. This is arguably another surprise, because WhatsApp typically tests features for a few months before rolling out to public beta testers. This could be a buggy update from WhatsApp and has been quickly fixed. The interface for this version of WhatsApp has also been changed to better accommodate the new features. An icon appears right next to the voice message to perform accelerated operations that the user wants to hear again. In addition to playback acceleration, another feature also tested by WhatsApp is the ability to delete or make changes to a chat on just one active device without affecting any linked devices other. That is, changes or deletion of any chats through one handset will not be deleted from other linked devices. This is quite confusing because often performing a delete or change operation means that the content the user will not want to save on any device. If this feature is kept by WhatsApp, users will have to delete the chats multiple times on multiple devices. This feature is in line with what WhatsApp introduced previously, which is that each account can be importing up to 4 devices at the same time. However, the log out of all these devices is said to be in development, users still have to go to each device to remove the WhatsApp account. The new features that WhatsApp has introduced well for users to try out may see that it may be coming to many people soon.

Galaxy Upcycling at Home’s initiative Samsung was announced at the World Consumer Electronics Show 2021 (CES 2021) earlier this year and is now being tested in beta in several markets such as the US, UK and South Korea. This feature can alert you to the sounds of crying babies or turn on the lights when the light levels drop In this beta, Samsung will allow users to turn old phones into smart home devices that work through Samsung’s SmartThings app, which has two new modes: sound sensor and light sensor. Owners of certain smartphones can download the update to turn the device into a smart home sensor with some functions such as being able to detect the sound of a crying baby or turn on the light when it’s dark. The program is limited to certain smartphones released in 2018 or later. While it’s only recently applied to a few smartphones, it’s a good, accessible service that can help users make use of their old devices. Samsung says the sound sensor mode will help to accurately distinguish sounds in everyday surroundings, and users can choose to save certain recordings. For example, if the device detects sounds such as a baby crying, dog barking, cat sounding, or knocking on the door, it will send an alert directly to the user’s smartphone and the user can hear the sound. Be recorded. Whereas the light sensing mode simply turns your phone into a light sensor, allowing it to detect the level of sunlight or room light to automatically turn on the lights. Samsung says this update includes battery optimization needed to keep the phone powered up and acting as a sensor for long periods of time, though the company didn’t indicate uptime. between charges. Samsung says the “Galaxy Upcycling at Home” feature is available on all S, Note and Z series released in 2018 (S9, Note9 and above) running Android 9 or higher and will be available in the future. More smartphones are supported. Samsung’s upgrade program marks a very humble starting point, and the company can do more if it wants to limit e-waste and make old devices useful. So far, the program has only used microphones and light sensors on older devices. Hopefully in the future, Samsung will take advantage of the cameras of old smartphones to turn old smartphones into IP cameras. Phan Van Hoa (According to Arstechnica, Theverge)

Representatives of Doan Yen Bai Province, Mu Cang Chai District Party Committee and Warm Towel Fund for children to grow bamboo at the “dinosaur backbone”, Phinh Ho village, Di Xu Phinh commune, Mu Cang Chai district This is an activity under the project “Green Sound” with the aim of building a model of enriching forests and creating a sustainable bamboo ecosystem; at the same time creating income for economic development. The project is implemented by Doan Yen Bai Province and the Warm Towel Fund for you in collaboration with Mu Cang Chai district. The project will be implemented from now until 2025, which is expected to plant on a total land area of ​​16.81 ha in the “dinosaur backbone” area of ​​Phinh Ho village, Di Xu Phinh commune, Mu Cang Chai district. In the immediate future, in 2021, it will be pilot planting 8,800 trees on an area of ​​more than 8 hectares; in the following years, additional planting will be made on the remaining area. In 2022, the project will deploy a cultural space, product display area, language classes to preserve local cultural values, support community tourism development and create a green ecosystem. from bamboo. Ms. Doan Thi Thanh Tam, Secretary of Doan Yen Bai Province, said that in recent years, storms and floods have seriously affected forest resources in Mu Cang Chai. The project implemented here aims to regenerate forests, protect the environment and develop the local tourism economy. Besides, the “dinosaur backbone” in Phinh Ho village is the attraction for many tourists to conquer and take check-in photos. This is one of the three “backbone of dinosaurs” with Ta Xua – Son La, Binh Lieu – Quang Ninh, many people rated the most beautiful in the North. “The project makes sense not only to the environment and local people but also to the young Yen Bai in the direction of forming youth cooperatives doing tourism economy”, Ms. Tam said. According to Ms. Tam, the bamboo source used in the project is indigenous species. Youth unionists coordinate with farmers with the guidance and advice of experts to create landscapes and ensure the growth of trees.

Korean female DJ Soda has received the attention of many Vietnamese audiences thanks to her beautiful look and irresistible hot fashion. DJ Soda anesthetizes people by his hot body, real curves like a Japanese manga. On the personal social networking site, 8x beauties often show off pictures of bikini and tight-fitting outfits showing off their “fiery” body. What many people focus on most about her is her sexy dance moves with an extremely sexy body. Female DJ knows how to leave a mark when constantly wearing simple outfits but showing off her sexy body as much as possible. Most of the girls were wearing tight fitting, maximized full bust. DJ Soda’s costumes always help her to maximize her fiery figure. The “bustling” round is always the point of attracting the opposite person in the way Soda is dressed. Soda is eye-catching with a glittering dress that shows off a “fiery” shape. Everyday, 8X beauty combines shoulder-length croptop with sporty pants showing off her toned breasts. When performing, Soda often “burned the eyes” of the audience by the cloth skirts. Even while eating, she always remains sexy. Photo: IT. Invite readers to watch the video “Fashion show of the oversized”. Source: VTV24.

CEO Mark Zuckerberg’s company believes that the combination of audio formats, as well as the combination of text, sound and images, will create many magical features that meet the expectations of users. Facebook’s adjustment of the feature stems from actual user tastes as more and more people choose to use voice, from audio calls on social networks to leaving voice messages on WhatsApp’s app. Messenger. Currently, Facebook is building new sound generators “like having a recording studio in the user’s pocket.” These tools will let people create short recordings, such as jokes. There are more than 170 million people connected to Facebook pages using podcasts, and about 35 million users are members of podcast fan groups. However, at the moment, listening to audio on podcasts forces users to leave the social network. With Facebook’s improved feature, in the near future, users will be able to listen to podcasts directly on the app, using both at the same time. according to TechCrunch

Photo: Axios Sharing with the community on the Discord chat app, Mark Zuckerberg announced a product roadmap that Facebook will launch within the next 3 to 6 months. Products that the head of Facebook announced include: Photo: Axios – Soundbites: Short audio product of Facebook to serve users. Mark Zuckerberg says the product looks like an audio version of Reels (similar video product to Instagram’s TikTok). Users can share short audio clips on their News Feed or they can listen to a series of short, algorithmically arranged audio clips on the News Feed. Photo: Axios – Podcasts: Facebook will build a tool that allows users to explore Podcasts content on Facebook. Facebook may partner with an external Podcasts app to implement this feature. Photo: Yahoo Live audio: Users can chat with audio on Facebook, and Mark Zuckerberg believes live chat audio can help Facebook improve the economics of content creators. Mark Zuckerberg has started experimenting with more sound platforms in recent times as the trend gets stronger. A few weeks ago, he announced a shopping-related partnership with Shopify on Clubhouse, the popular audio social network recently.

Deputy Minister of Information and Communication – Nguyen Huy Dung. Photo: Hang Tran / BNEWS / TTXVN The eMeeting online meeting platform was officially introduced at the Vietnam Digital Challenge Forum “organized by the Ministry of Information and Communications. According to Deputy Minister of Information and Communication – Nguyen Huy Dung, the launch of eMeeting online meeting platform is a strong affirmation that Vietnamese businesses will not give up, and dare to take challenges to thirst. Make in Viet Nam hope comes true. In the market of online meeting platforms in Vietnam, the presence of big names such as Zoom, Microsoft Teams has not deterred, discouraged online meeting solutions owned by Vietnamese enterprises and operate. Currently, eMeeting is being deployed in the National Assembly, the legislature of Vietnam, in many ministries, departments, and businesses. eMeeting is designed with up to 9 layers of security protection. Photo: Hang Tran / BNEWS / TTXVN eMeeting is developed by the cooperation between AIC Group and Bkav Group, equipped with 9-layer security system, optimized data compression, online meeting support with up to 200 bridge points, providing quality Sound volume, good picture even in weak network conditions. Mr. Vu Ngoc Son, Vice President of BKAV Technology Group, said that eMeeting has all the necessary features of the meeting such as scheduling, reminding calendar, document sharing, screen sharing, online video sharing. , manage, administer the meeting, vote … With the advantage of being a network security company, eMeeting is designed with protection system up to 9 layers of security, including protection of transmission channels; firewall; terminal protection; endpoint encryption; archive encryption; database encryption; application security; device security and user authentication. With this security system, customers can be completely assured to use them, without having to worry about unsecurity issues when meeting online such as revealing meeting content or strangers entering the meeting room like some. Foreign solution has encountered ./.

She wears a close-fitting skirt with navy blue tones with V-shaped cutout on the neck and is accented with a large pearl necklace. However, the latex fabric makes the wearer inconvenient, and when moving, it will create less charming sounds like the sound of fart.

Katy Perry wore Bottega Veneta’s dress.

“If you think I’m deflating on TV, it’s really not. I feel a bit shy about the sound coming from the dress,” Katy Perry shared.

The audience also left comments below the vocal post Roar. Many people understand the female singer’s feelings and think that this is a common sound that the wearer. The rest identified that latex fabric is somewhat outdated in 2021.

Account @leoairton said: “Katy Perry always creates humor with every outfit she wears American Idol. The dress is very sexy but I think Katy also has a lot of trouble wearing it.

On March 15, Daily Mail reported on an episode of the show American IdolKaty Perry surprises the studio with his act of revealing underwear designed specifically for people who have just given birth to babies.

During this recording session, Katy Perry’s daughter was accompanied by her mother to the backstage area. During a break, judge Lionel Richie introduced to the audience that: “Katy’s daughter is in the room. Katy, please show it.”

Immediately after the offer, the female singer stood up and said: “Yes. If she asks for food, I will go right away.”

Then, she stripped the front part to reveal the inner underwear specially designed for mothers with young children.

This act of the female singer surprised the audience and created a controversy about the lack of charm on television.

The female singer showed off her underwear on television.

Cowin famous Sound brand from the US (USA), after 10 years of establishment and development, now Cowin has been present in more than 50 countries and regions around the world. Products from Cowin are always appreciated by technology world and experts for their powerful, authentic sound quality and active noise cancellation and surrounding noise cancellation.

That’s why, Cowin has for many years continuously been in the TOP leading Amazon best-selling brand. In particular, Cowin always holds the TOP 1 position for ANC noise-canceling headphones with thousands of above quality reviews at Amazon.

Recently, Cowin just attended DISTREE EMEA 2020 and was ranked TOP 3 in the Best Audio category of MONACO award – DISTREE Diamonds award series for consumer technology brands continued to take place at DISTREE Europe. , Middle East and Africa (EMEA) 2020.

Come to Cowin, you will experience authentic and powerful sound technology with more than 10 years of continuous improvement experience.

Owns more than 230 patents including 20 invention patents, 20 international PCT patents and more. Ranked top 1 ANC headset on Amazon

That’s why, Cowin has for many years continuously been in the TOP leading Amazon top-selling brand. In particular, Cowin always holds the TOP 1 position for ANC noise-canceling headphones with thousands of above quality reviews at Amazon.

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The habits of hearing damage that women need to correct immediately if they are suffering

Incorrect blowing your nose

The story of blowing the nose seems extremely normal, but few people expect it to be one of the habits of hearing damage. When we have a runny nose or need to blow our nose, we usually use two fingers to “squeeze” the sides of the nose and use quite force. While this action may seem like only nose, but in fact it also significantly affects your ears.

The habit of blowing the nose unscientific will make it difficult for the runny nose to shoot through the nostrils but easily follow the ear canal (also known as the Eustache nozzle, which is a catheter connecting the middle ear and the back of the nose) which enters the middle ear, causing inflammation of the middle ear and damage hearing.

Therefore, the proper way to blow your nose is to use your finger to press on one side of the nostril and gently force it on the other side of your nose. If a stuffy or runny nose is severe, you can use nasal drops and medication as directed by a specialist.

Ear-picking bluff

Regardless of whether you use your finger or a cotton swab or a stick to remove earwax, etc., if you are not careful picking your ears, it can very much damage your outer ear, even deep inside. This habit for a long time can lead to external ear infections, and even deafness.

Advice for women is to regularly use wet towels to clean the ears, reduce earwax produced so that you do not need to pick your ears much. When needed, it is best to use a sterile cotton swab to gently clean the inside of the ear, but be careful not to accidentally touch it while you are doing this.

Wear headphones often

Currently, with modern technology of mobile phones, ipads, etc., many people have the habit of hearing damage without even knowing it, which is wearing headphones for too long. If the sound is adjusted too loudly, the harm will increase, high frequency will gradually damage the cilia cells in the ear, causing hearing loss.

If you need to wear a headset, you should adjust the volume a bit and should not use it for more than 30 minutes. In addition, the most ideal is to choose headphones that are placed outside the ears, limiting the use of the type inserted directly into the ear to reduce the adverse effects.

Talking on the phone for too long

When the phone is pressed to the ear, the emitted electromagnetic waves further damage the hearing. Women who have a habit of “chatting” with long calls will appear tinnitus and ear pain, if not limited, they can impair normal hearing.

Eat too much fatty and high-heat foods

An unscientific diet with fatty foods and a high caloric index will cause many common health problems such as high cholesterol, high blood pressure, diabetes, atherosclerosis, increased adhesion. of the blood fluid, etc… Also, the inside of the ear will not be provided with enough blood, affecting hearing.

Women who want to keep fit and maintain good health should have a healthy diet. Limit harmful foods and incorporate a variety of ingredients in each meal, increase natural fruits and vegetables and reduce fatty meats, sweet and fatty foods.

Drug abuse

A habit of hearing damage that many people are also prone to is drug abuse. For example, antibiotics, if used long-term and inappropriately, will have harmful effects on the health of the whole body, including hearing.

What to eat to improve hearing protection?

The basic rule of thumb is to eat a balanced diet to avoid nutritional deficiencies. Women should pay attention to supplementing with elemental iron, which works to prevent and slow tinnitus and hearing loss in the elderly. Some iron-rich foods that you can choose from are seaweed, shrimp, black fungus, black beans, black sesame, coriander etc …

In addition, women should also combine foods rich in zinc such as animal liver, raw foods, nuts, eggs, clams. Vitamin composition is also very important, in which especially vitamin C and vitamin E effectively enhance Superoxide dismutase, improve blood circulation, protect hearing.

Thien Khue (According to Familydoctor)