There is a difference between standard sound quality and lossless sound quality. The following are the differences between standard sound quality and lossless sound quality:

1, format difference: standard sound quality: 128kbps (bit rate); Lossless sound quality:1411kbps (CD sampling rate). The standard sound quality is MP3 format, and lossless music formats are wave, FLAC, AIFF, etc.

2. Size difference: a 3-minute pop song, 128K is about 3MB, with a loss of about 30MB. (The sampling rate standard is 44 100HZ, which is the same as that of CD; Many songs have been recorded, and the sampling rates are 192Khz and 96KHz respectively. Eventually, the main frequency processing will be reduced to the standards of 44 100HZ and 16bit. )。

3. Difference in sound quality: the high-frequency part of the standard sound quality will be weakened, and listening to the concert with a good monitor headphones will reduce the sense of space; In fact, the so-called music compression is to compress its low-frequency and high-frequency versions, so the frequency response range of compressed music is not as wide as that of lossless sound quality.

Generally speaking, the most commonly used method to distinguish the quality of audio files is coding rate, which is usually written as XXX Kbps, indicating the amount of information contained in audio files per second. Generally speaking, the higher the amount of information, the richer the music, the more "real" the music and the richer the details. So for music lovers, lossless sound quality is richer than standard sound quality.

Extended data:

Additional remarks

1. High-quality mp3 refers to music files with a bit rate of 320k. Ordinary mp3 files are mostly 128k, with different file sizes.

2. Music files with higher quality than high-quality mp3 are music in ape, FLAC and WAV formats, with a bit rate of 600K- 1200k or even higher, and the file size is basically above 30MB.

4. The better the sound quality, the more frequency components of the reproduced sound, the less distortion and interference, the higher the fidelity of the sound and the lower the bit error rate. Usually measured by digital rate (or storage capacity). The higher the sampling frequency, the larger the quantization bits, the more channels and the larger the storage capacity. Of course, the higher the fidelity, the better the sound quality.

5. There may be no difference in the sound quality of playback contrast under general audio equipment, and high-quality audio equipment is needed to distinguish the two.

References:

Baidu encyclopedia-sound quality