_P3, AAC, WMA, Ogg, MPC, WAV, FLAC, APE, WV, CD and MID are common audio formats.
_P3 format was born in Germany in 1980s. The so-called MP3 refers to the audio part of the MPEG standard, that is, the MPEG audio layer. AAC (Advanced Audio Coding) is a technology provided by Dolby Laboratories for music, which can accommodate up to 48 audio tracks with a sampling rate of 96 KHz. Appears in 1997, which is an audio coding technology based on MPEG-2. WMA (Windows Media Audio) format is a heavyweight from Microsoft, with strong background and better sound quality than MP3 format, even better than RA format. Like VQF format developed by Yamaha Company in Japan, it aims to achieve a higher compression ratio than MP3 by reducing data flow but maintaining sound quality. The full name of Ogg should be ogg Vorbis, which is a new audio compression format, similar to existing music formats such as MP3. But one difference is that it is completely free, open and without patent restrictions. An outstanding feature of OGG Vobis is that it supports multiple channels. With its popularity, it will not be a dream to listen to DTS-encoded multi-channel works with walkman in the future. The full name of MPC is MusePack, an audio format. MPC(MusePaCk) is a completely free high-quality audio format, which was developed by German Andree Buschmann. WAV format is a sound file format developed by Microsoft. It conforms to the specification of PIFFRESOURCE exchange file format, and is used to save the audio information resources of WINDOWS platform, which is supported by WINDOWS platform and its applications.