The so-called "technology changes life" actually involves two aspects: one is to reduce the burden; the other is to enhance the experience. If you want to say "in a moment" that you feel that technology changes life, you will be more about enhancing your experience.

The so-called "technology changes life" actually has two aspects: one is to reduce the burden; the other is to enhance the experience.

wants to say "in a moment" that feels that technology changes life, but it is more about enhancing the experience. For example, I bought a huge flagship TV and exclaimed "I'll go..." when it lights up. For example, active noise reduction headphones, didn't there be a particularly famous copywriting back then:

, I'll describe how quiet it is. My child's math grades are not good. You are a manager in the bank and maintain customer relationships. You have mortgages and car loans, and you have a monthly mortgage of 5,000 yuan. Your wife works as a nurse in the Municipal People's Hospital. Her mother has uremia and dialysis for many years, but she doesn't love you. When you were young, you thought you could achieve something, but now it's just that. Your friends are doing better than you. You park your car in the garage after get off work, turn off the engine, and whistle and quiet down. It's so quiet. There are few such quiet moments in your life. You plan to stay there for ten minutes before going upstairs to have dinner. The above is the effect evaluation of active noise reduction headphones.

Many people resonate with this copy, why? Because the moment you put on active noise cancelling headphones for the first time, it was so amazing.

Most people actually find it difficult to realize that "quietness" is also an experience before they feel "quietness" in person.

For example, when I was a child, I took a minibus and drove on a bumpy road, and I never felt noisy. Later, when I first sat on Santana , I felt that the car door was closed and it was so quiet.

Now you ask me to take Santana, I must have felt very noisy. Today's luxury cars are optimizing NVH as one of the most critical product strengths. After all, there is no end to the pursuit of quietness.

pursues "quietness", which in the eyes of ordinary people, may be a matter without particularly technical content. It's nothing more than "blocking". Wear earplugs and headphones, install double-layer vacuum glass and laminated glass, use various soft materials to cushion and buffer, and later active noise reduction technology.

does not sound complicated, but in fact, the technical depth behind noise reduction may be much deeper than you think.

It involves many aspects such as material science , mechanics, acoustics, mechanical design, etc., and active noise reduction technology also involves sensor and electronic signal processing technology.

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I still remember that when I first came into contact with active noise cancelling headphones, I learned about its technical background.

active noise reduction technology was originally a "military technology" that targeted aircraft, especially helicopters and other facilities with huge noise, to meet the soldiers' noise reduction needs.

later, the technology gradually matured, and the technology side also understood the needs of the market and then turned to civilian use. Around 2015, it gradually entered the public's vision.

simply talks about the principle, what active noise reduction does seem to be simple: use a microphone to monitor the ambient noise, and then the sound generating unit in the headphone emits a reverse sound wave. After the two are superimposed and cancel each other, the "active noise reduction" is achieved.

But in fact, things are far from that simple, but there are many details that need to be solved and optimized.

For example, after the noise passes through the earbuds, it will attenuate and change; the process of picking up noise and outputting waves will be delayed...

In the past, I interviewed several industry insiders in order to make the Bluetooth noise reduction headphone evaluation. As a student majoring in electronic signals, it is easy for me to understand that the iteration of active noise reduction headphone technology is also a "never ending" process. For every minute of the processing of noise, I have to put in many times the effort.

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actually makes the same as the passive noise reduction in cars. The noise reduction of

car car car sounds like no difficulty: replace the glass with double-layer glued; stuff the gaps with sponges, fill them with glue, and fix them to death, wouldn't it be enough?

But the problem is obviously not that simple. For example, the reason why there are gaps in some places is that it takes into account the needs of daily use and repair and replacement. This is the simplest and easiest pair of contradictions, with much more practical problems than this. The problem of noise reduction in

in car is even more difficult for Tesla .

It does not have the sophisticated NVH optimization experience like the Mercedes-Benz , which has built more than 100 years of cars, nor does it have the advanced body manufacturing process of 6-sequence stamping like Audi . What's more serious is that Tesla built a tram, without the roar of the engine, and the noise problem in the cabin was even more prominent.

, the king of efficiency Tesla has not taken the ordinary path. While using an integrated body to speed up the production pace and combine the dashboard and central control screen into one, Tesla replaced "silent tires" with Model 3 and Model Y, which greatly alleviated the noise problem.

Currently, Michelin PS EV and Hanthai Ventus S1 EVO3 have been loaded. Many people think that silent tires are just silent, and we need to refute the rumors here. Silence is only one aspect of the performance of silent tires, and it has a comprehensive performance improvement compared to traditional tires. Otherwise, it will not be able to meet the grip performance of Model 3 Performance version with 000-3 seconds, punching Farah, kicking , Martha .

The Model Y I drove myself was quite clear about this: in the past, the so-called "road feeling" was the vibration transmitted through suspension, but partly the feeling brought by tire noise. However, the "road feeling" of Model Y is basically transmitted from the seat. When the tires are inflated and the speed is relatively low, you can hardly feel any tire noise. It can be said that you can't go back after using it.

, like BOSE, bringing active noise reduction into the consumer field, Tesla has also quietly pushed silent tires into a new stage of development. Now, more and more consumers are beginning to choose silent cotton tires. On a certain Tiger Car Maintenance App, Thor, a brand that focuses on silent tires, has more than 4,800 user praises.

silent tires are not achieved overnight, but are also the product of the century-old tire technology advancement. Taking Thor Tire as an example, it achieves the goal of enhancing the quiet experience in several aspects. For example, material innovation, the sound absorbing layer inside the tire uses a sponge, but sponge and sponge are different. This is a polymer material called "porous polyurethane", which allows the tire to have better silent performance while also having better impact resistance and shock absorption.

Also, for example, the pattern of the tire, through a specific design, it can also avoid natural frequencies and resist noise generation. This is very well reflected in Thor's Jingyue Tire. Through the 5 pitch block design, the inherent noise frequency is broken, making the noise generated when the pattern touches the ground more difficult to perceive, achieving an ultimate silent experience.

, a clever way of improving the quietness of the cabin from the tires, has not only been recognized by automakers such as Tesla, but also recognized in the professional audio field.

For professional speaker brands like JBL, to provide users with an excellent listening experience, the first thing they need to solve is the nuisance of environmental noise. So, the engineer team of JBL audio recently evaluated the models equipped with Thor tires. This is a group of "golden ears" whose sensory abilities cross instrument data, which can refine the noise structure that the decibel instrument cannot distinguish and analyze the actual impact of noise on the driving experience.

Thor tires achieved a 6dB noise reduction score at the speed range of 60km/h - this score is comparable to some models equipped with active noise reduction systems. This value is of wide reference significance for car owners who do not have the option to actively noise reduction. The quieter cabin atmosphere also allows owners to easily get a mobile concert hall-like pleasant experience by modifying the sound system.

As the title says, we lament that technology changes life only "a moment", and behind it is the result of long-term technology and industrial iteration. As a blogger in the technology circle, I thank these people who have worked hard in the creative and industrial chain that promotes human progress.

or above.

It does not have the sophisticated NVH optimization experience like the Mercedes-Benz , which has built more than 100 years of cars, nor does it have the advanced body manufacturing process of 6-sequence stamping like Audi . What's more serious is that Tesla built a tram, without the roar of the engine, and the noise problem in the cabin was even more prominent.

, the king of efficiency Tesla has not taken the ordinary path. While using an integrated body to speed up the production pace and combine the dashboard and central control screen into one, Tesla replaced "silent tires" with Model 3 and Model Y, which greatly alleviated the noise problem.

Currently, Michelin PS EV and Hanthai Ventus S1 EVO3 have been loaded. Many people think that silent tires are just silent, and we need to refute the rumors here. Silence is only one aspect of the performance of silent tires, and it has a comprehensive performance improvement compared to traditional tires. Otherwise, it will not be able to meet the grip performance of Model 3 Performance version with 000-3 seconds, punching Farah, kicking , Martha .

The Model Y I drove myself was quite clear about this: in the past, the so-called "road feeling" was the vibration transmitted through suspension, but partly the feeling brought by tire noise. However, the "road feeling" of Model Y is basically transmitted from the seat. When the tires are inflated and the speed is relatively low, you can hardly feel any tire noise. It can be said that you can't go back after using it.

, like BOSE, bringing active noise reduction into the consumer field, Tesla has also quietly pushed silent tires into a new stage of development. Now, more and more consumers are beginning to choose silent cotton tires. On a certain Tiger Car Maintenance App, Thor, a brand that focuses on silent tires, has more than 4,800 user praises.

silent tires are not achieved overnight, but are also the product of the century-old tire technology advancement. Taking Thor Tire as an example, it achieves the goal of enhancing the quiet experience in several aspects. For example, material innovation, the sound absorbing layer inside the tire uses a sponge, but sponge and sponge are different. This is a polymer material called "porous polyurethane", which allows the tire to have better silent performance while also having better impact resistance and shock absorption.

Also, for example, the pattern of the tire, through a specific design, it can also avoid natural frequencies and resist noise generation. This is very well reflected in Thor's Jingyue Tire. Through the 5 pitch block design, the inherent noise frequency is broken, making the noise generated when the pattern touches the ground more difficult to perceive, achieving an ultimate silent experience.

, a clever way of improving the quietness of the cabin from the tires, has not only been recognized by automakers such as Tesla, but also recognized in the professional audio field.

For professional speaker brands like JBL, to provide users with an excellent listening experience, the first thing they need to solve is the nuisance of environmental noise. So, the engineer team of JBL audio recently evaluated the models equipped with Thor tires. This is a group of "golden ears" whose sensory abilities cross instrument data, which can refine the noise structure that the decibel instrument cannot distinguish and analyze the actual impact of noise on the driving experience.

Thor tires achieved a 6dB noise reduction score at the speed range of 60km/h - this score is comparable to some models equipped with active noise reduction systems. This value is of wide reference significance for car owners who do not have the option to actively noise reduction. The quieter cabin atmosphere also allows owners to easily get a mobile concert hall-like pleasant experience by modifying the sound system.

As the title says, we lament that technology changes life only "a moment", and behind it is the result of long-term technology and industrial iteration. As a blogger in the technology circle, I thank these people who have worked hard in the creative and industrial chain that promotes human progress.

or above.