1, with different sizes. A song with standard sound quality is about 2-4MB. A song with super high sound quality is about 5- 10MB. A song that doesn't lose sound quality is probably1100mm.

2. The sound quality is different. Music with standard sound quality won't sound too rough. Super high-quality songs sound more detailed. (such as the sound of an accompaniment instrument) without affecting the sound quality, which sounds very clear.

3. The classification is different. Standard sound quality, ultra-high sound quality belongs to lossy sound quality. Lossless sound quality naturally belongs to lossless sound quality.

Extended data:

There are three common lossless formats: ape, wav and flac, and aac can only be considered as high quality. Its advantage is that all lossless formats are essentially wav compression, and will be turned back to wav when playing. So playing wav directly helps to save memory and be smoother. But the disadvantage is that the file is too large, generally more than 30 megabytes. Ape and flac are smaller.

Baidu Encyclopedia-Lossless Music Format