Hello poster, I know a little bit about your problem.

There are several people in my circle of friends who sell USB flash drives like this, but I have blocked them all. They record videos every day and post how these USB flash drives perform on different cars. The effect that is applied to the Porsche in the morning and the effect that is applied to the Civic in the afternoon. To be honest, listening to these sound effects through the mobile phone, they all feel the same, there is no difference. It's just a little cool and sparkling. If it's the mobile phone that limits the performance of the USB flash drive, I also experienced it in a friend's car not long ago. It's better to listen to it on the mobile phone.

If you use a USB flash drive to improve the sound quality of your speakers, it is really useless. The songs on the USB flash drive are just for you to download with lossless sound quality, but what really affects your hearing is the speakers. If you really want to improve In terms of listening experience, it is recommended to replace the speakers. You get what you pay for. The speakers that my brother bought for more than 20,000 yuan are like singing in a mobile concert. It’s a bit exaggerated, but that’s the feeling. Having said that, for this kind of product, I think it doesn't matter. Even if it is deceived, the consumer thinks it is good and it is worth it, so it doesn't matter. The sound is priceless. If you think it sounds good and is worth the money, then that's fine. I would definitely not buy such a thing.

I hope my answer can help you.

Many answers claim to be professional. But I might be more professional. Because I have been selling U disks and downloading songs to customers since 2005, and I sold some of these U disks when the first generation of Gongti U disks came out. Originally this was a trap, but many people in the industry are unwilling to tell its secrets. They just want to make more money selling it. What you can know is only half-understood.

This kind of USB flash drive cannot be bought at all. To put it mildly, this is pirated music and should have been severely cracked down on. To put it mildly, this kind of USB flash drive may burn your line and cause you unnecessary losses. This kind of U disk uses low-level formatting to convert small-capacity U disks, most of which are damaged and repaired ones, into large-capacity ones. In fact, they cannot store that much content. This was the first description I wrote when I was selling genuine Kingston flash drives on eBay. At that time, I couldn't stand the proliferation of fake USB flash drives, but customers didn't know anything about it. Later, this description was reproduced almost in its original text by Taobao sellers to this day. The disadvantage of this kind of USB flash drive is that it increases the power and even causes a short circuit, which makes it very easy to heat up during use and even makes your hands hot. Long-term use can cause overheating of the circuits in the car or equipment failure. Many navigation systems are caused by plugging in this kind of USB flash drive. Counterfeit U disk or card causes damage to the motherboard.

This kind of claim to improve the sound quality of the original car several times is false and exaggerated, and will not improve any sound quality of the original car at all. Most of the songs here have not been rendered and processed, and are all 320K MP3 files ripped from CDs. Recently, some Gongti USB flash drives have used lossless music, but these are very rare because there are still relatively few vehicles that can support lossless music. The sound quality in the car depends on the sound adjustment and the sound insulation effect in the car, as well as the quality of the music. If you really want to listen to workers’ sports music, it’s best to go to Tmall and buy a genuine USB flash drive, and then copy the songs from the workers’ sports USB flash drive into it. It’s not that I look down on Electronic City, there really aren’t many that sell genuine products.

Many people still stick to mp3 music and don’t know about music in lossless format. Generally, the music capacity of mp3 format is about 5-10 MB. The lossless format is about the same as CD, about 30 MB. There is also a song in WAV format. The song capacity is about 50-100 megabytes, which is equivalent to a master tape. The master tape is the original sound recorded in the studio. MP3 is a compressed format and some have adjusted sound effects, such as increasing the bass volume and high volume. However, if 30 MB is compressed into 5-10 MB, a lot of music details will be lost. Similarly, mp3 has many different bit rates, including 64kb and 128kb. 192kb.320kb. The larger the theoretical value, the better the sound quality, up to 320kb. However, there are many mp3 compression uploaders who are irresponsible, not only losing details but also adding sound effects, which makes the songs lose their balance and original flavor, and there are even popping sounds in the music.

Many car owners usually download mp3 music online without knowing how to check the bit rate, and the quality varies, resulting in unsatisfactory downloaded music. Therefore, U disks that improve the sound quality by 6 times without changing the speakers have appeared on the Internet. These U disks The mp3 in it uses the highest bit rate. There is no way that many cars do not support lossless formats but all support mp3. The U disk produced in this way is easier to sell. They use computers to add sound effects through sound effects processing software to please people's ears. For example, the vocals in songs are moved forward, the bass and treble of rock music are increased, and the sound field is expanded to make people feel immersed. These are sound effects rather than sound quality.

In order to produce good sound in the car, the audio source file must be in lossless format. A CD player must be able to support lossless format. Android navigation can also play lossless format, but it is not recommended because the power amplifier is very poor. , and for high-end ones, the power of the speakers must match the quality of the amplifier. Original car speakers are generally not good enough. If you can afford to buy a CD player with an active three-way system, the effect will be better. The sound field of high, midrange and bass is clear and not confusing.

The sound of this type of USB flash drive is really different from that of ordinary USB flash drives. However, the promotion of this type of USB flash drive is somewhat exaggerated, such as vinyl chips, lossless audio, 6D sound effects, etc., which are purely exaggerated promotions. For example, the concept of vinyl is a record, and a USB flash drive is a carrier for storing data. Digital signals only need to store 0-1. Can vinyl be placed in a chip? It’s just a concept. According to this theory, there is also a vinyl chip in your mobile phone.

Regarding lossless audio, what audio files are compatible with all car models? That’s just MP3 files! Other lossless audio formats are not compatible with all car models, so the music files in the USB flash drive are MP3! One piece MP3 size is 3-5M. Friends who use Kugou to listen to music know that there is a high-quality option, which doubles the file size. There will be some improvement in music details, but it will definitely not have a completely different effect. As for the 6D sound effects, they are just a gimmick.

However, when this kind of USB flash drive is used on models without modified audio, the sound effect is indeed better than that of ordinary USB flash drives. Why not say it sounds better? Because sound effects have nothing to do with timbre. Everyone knows that car audio systems that have not been modified have a thin tone, missing low frequencies, dark mid-range frequencies, and weak high frequencies. The listening environment in the car is complex and very different from the listening room. The effect of a set of speakers played in the car will be far worse than the effect played indoors. Therefore, in order to pursue sound quality, some people spend money to modify the speakers. Only luxury car speakers will be better. For example, it will be equipped with Berlin Sound speakers, etc.

Most car speakers are unremarkable when playing music, because the source of the music is standard universal audio, which is suitable for all audio equipment including headphones. Therefore, the various frequencies in the music will not be modified too much, and what is pursued is the original flavor. Some high-end speakers have high fidelity, deep low-frequency dive, bright mid-range, and slender treble, so HIFI speakers can also have excellent effects when playing ordinary music. HIFI pursues a sense of on-site restoration.

Why does the modified car audio sound better when playing ordinary music? In fact, this is the effect of the DSP processor, which can also be said to be an equalizer. For the listening environment in the car, the sound quality has been modified and certain frequencies have been moderately increased. That is to say, hardware is used to modify the frequency of the music, and the effects you hear are the effects of DSP processing. For example, the low frequency is boosted, the mid frequency is moderately strengthened, and the high frequency gain is increased. The essence of DSP is adjustment, and every sound engineer can adjust different sound effects. Delaying the signal will drive better sound effects.

How can we obtain good sound effects without changing the sound? That is to modify MP3 through software. After a song is processed through various equalization processes, the frequency of each band is increased or attenuated and then saved. In this way, MP3 comes with DSP effects. It can be understood as modifying ordinary music. In this way, when played on ordinary speakers, you will experience different sound effects. Especially for low-end models, you can feel that the sound is fuller. In fact, this is a type of sound dyeing. If this kind of U disk is played in a high-fidelity speaker, it will achieve poor results and the sound will be too heavy. In fact, many music software have equalization functions, which can adjust a song to your favorite tone.

Having said so much, let’s give an example! You can search for fever vocals in music software. Most of this music is covers, except for Tsai Qin.

This kind of music sounds like it directly hits your soul. The singer seems to be singing for you right in front of you, and it also seems like the singer is whispering in your ear... In fact, this is the credit of the recording engineer. Strictly speaking, it is also a kind of sound dyeing. , modify the music to the way that "audio enthusiasts" like it, so that beginners can find the feeling at once, such as the airy feeling of the human voice!

Let me answer it professionally!

1. The sound quality will definitely not be better than the original car CD player.

2. The sound of a car with a price of less than 100,000 yuan is not much different from that of an MP3 player

3. The music on some USB disks has been processed to highlight the human voice and some high and low sounds, so it will It feels very clean, and the highs and lows are strengthened. This way, the van feels different when it is released.

Summary: If the price is right, you can buy one. But if you want to hear real high-fidelity sound, it’s better to upgrade your speakers! Upgrading your speakers is the most straightforward and cheapest. Generally, a few hundred yuan is OK for a car worth around 100,000 yuan. If you don’t understand, you can ask me.

If you believe this, let me ask a question first. Does the jar containing honey affect the sweetness of honey? Or is it the strong fragrance of honey from the ceramic jar or the delicate fragrance from the glass bottle?

Let’s talk about the sound quality. What needs to be improved is a whole set. In terms of cars, your speakers, decoding amplifiers, vehicle sound insulation, etc. are just like cars. It does not mean that you install a BMW engine in an Alto. It's just like a BMW. Is it strange that it doesn't fall apart when it goes fast?

Of course, without changing the car hardware, lossless audio files are indeed better than MP3 format. Of course, it also depends on the hardware of your car. The same watermelon, some people think it is sweet, and some people think it is not sweet. , because of different living habits and tastes. If your car hardware itself is poor, you won’t be able to hear much difference even if you change the audio file.

According to normal audio knowledge, whether the sound quality of the final sound played from the speaker is good or not does not mean that good results can be obtained just because a certain link is improved. Whether the sound quality is good or not is a matter of the entire system, including audio files, decoding software, players, amplifiers, and speakers. In the entire chain, every link must be good to achieve good sound quality.

So if the audio file in the entire link is the worst, then choosing a better audio file with the highest format will definitely improve the sound quality. But if the speakers are the worst, then even using the largest audio format won't make a difference. This is the wooden barrel principle of audio equipment, whether it is home audio or car audio, it is the same.

Then audio files are all digital format files, that is to say, they are just a bunch of data. As for the data, no matter where it is stored, this pile of data will not be optimized. Therefore, the USB flash drive itself will not have any impact on the sound quality. Whether you use a USB flash drive that costs tens of dollars or a USB flash drive that costs thousands of dollars, the result of playing the audio file will be the same.

If you really use such a USB flash drive, you will feel that the sound sounds better. There will be several explanations.

One is that the audio files you usually play are in low format, and the ones installed on the USB flash drive are all lossless. Generally, if the sound is better, you can still hear the difference more or less.

In addition, the U disk itself is equipped with decoding software and some sound effect software. In addition to decoding the audio in lossless format, it also adds some sound effects to change the listening experience, such as adding Some reverb, or adjusting the balance to be more suitable for car audio. However, this method actually only changes the sense of hearing to please people's ears, but does not improve the sound quality. But people who don’t understand will think that “it sounds better” means that the sound quality has improved.

Then there is another way to directly install lossless audio that has been remastered or mixed into it. The same is done by adding reverberation, expanding the sound field, adjusting compression equalization, etc. The result is actually exactly the same as the previous paragraph. It just changes the sense of hearing and then deceives people into saying that this is improving the sound quality. People who don’t understand will naturally think that, yes, the sound quality has improved and it sounds better.

For this kind of product, I think it doesn’t matter. Even if it is deceived, since the consumer thinks it is good and worth it, it doesn’t matter. The sound is priceless. If you think it sounds good and is worth the money, then that's fine. I would definitely not buy this kind of thing unless I was stupid.

It is absolutely impossible to improve the sound quality. It can only be said that the sound effect has been changed! To say that it has been refined by the tuner is pure nonsense! If you want to experience the so-called 6 times or 10 times improvement in sound effects, I can teach you a way to open Kugou on your mobile phone and connect Bluetooth to the car. It is best to use a physical connection such as an aux amplifier cable to download and play a piece of lossless music. After playing Open the Viper sound effect on the interface, scroll down to find the sound effect market, and try it slowly until you find the sound effect you are satisfied with. This effect is actually the same as the USB flash drive bought online!

The key to whether the sound quality is good or not lies in the sound system in the car. Just record the master tape. If the sound quality is not good, it is useless. It is purely psychological. If it's the Sound of Berlin, even if you play a 256 mp3, it's really not bad at all. In fact, it's very simple. I'm just too lazy to download the songs, so I bought a finished product and listened to it directly. Usually they are 320 mp3. In fact, get a USB flash drive that is not used, open a cloud music membership for a month, download it and put it on the USB flash drive to listen. For those above 320, such as ape.flac.wav, etc., it doesn’t sound like a normal car at all. And many cars still don’t recognize that the latter categories are suitable.

To put it simply, there are three types of music files in the car: flac and wav, which are of lossless sound quality. One song file is about 30m, and there are also mp3 files. The commonly used ones are 128k, 192k, and 320k! The better, the better the sound quality! Good cars generally support wav, and some flac also supports it, but less often! Kugou pays to download flac! Generally, cars costing more than RMB 100,000 and 200,000 don’t have great speakers, and they basically only support MP3! Most of the USB flash drives purchased are 320k MP3 and a small amount of lossless sound quality. !