The relationship between MP3 frequency, bit rate, bit rate and sound quality
I want to know the relationship between MP3 frequency, bitrate, bitrate and sound quality.
The higher the frequency and bit rate, the better the sound quality. It seems that most MP3 frequencies are 44100HZ. The bit rate is 128, 192, and so on.
The frequency mentioned here is the sampling rate, which is usually 44100 KHz, because this is the standard for music CDs.
Each song is ripped from a CD, converted to a WAV file, and then converted to MP3 using software like Lame. So it should be a sample rate of 44100 KHz. Unless yours isn’t a song, it’s recorded as a WAV file and you’ve selected other sample rates when recording.
The main factor that affects the sound quality of MP3 is the bit rate. The best today are 320K CBR (fixed bit rate) and VBR (variable bit rate), VBR files are a bit smaller than CBR. 192K VBR is the most popular on the Internet, which can meet the requirements of sound quality and file size at the same time, but I usually use CD to rip tracks or download APE (lossless compression, can be restored to WAV file) and then convert it to 320K VBR.
One last reminder: MP3 transcoding is distorted and the distortion cannot be reversed. In other words, if you convert MP3 to WAV sound quality, the file size increases dozen times, but the sound quality remains the same as MP3 sound quality.
If you want to hear low distortion, it’s better to listen to a CD or download APE.
First of all, sound quality is a very subjective thing!
It is often said that the sound quality is good, one refers to the good degree of reproduction, that is, the smaller the difference with the recording, the better; As for mp3, mp3 is a compressed format, the higher the bitrate, the less compression and less loss of detail, that is, the higher the bitrate, the closer to the original sound. But sound quality is also related to your output device. For example, a good mp3 player and a good pair of headphones will help your listening quality.
So if you want to improve sound quality, it’s best to start from the above perspectives and not overemphasize any one of them. When you have higher requirements for sound quality, you can give up mp3 and directly switch to stop CD. The CD carries wave files, which are completely lossless sound quality formats, which will perform better.
Assuming the distortion is small, the only way is to increase the bitrate. It’s best to use variable bit rate (VBR) compression to produce mp3 files, which can strike a balance between maximum fidelity and minimum file size.
