The music in many videos sounds clearer and better than lossless music because the sound quality has been enhanced.

lossless music is a type of music file playing format, which can be divided into lossy compression and lossless compression. However, due to the data loss in the process of audio digitization, it is actually impossible to achieve real lossless. The reason why it sounds no different from ordinary ones is that the ears can't feel it, and the sound quality is similar.

The common MP3, WMA and OGG are called lossy compression. As the name implies, lossy compression is to reduce the audio sampling frequency and bit rate, and the output audio file will be smaller than the original file. Another kind of audio compression is called lossless compression, which can reduce the volume of the audio file under the premise of 1% preservation of all the data of the original file, and after the compressed audio file is restored, it can achieve the same size and the same bit rate as the source file.