MPEG- 1 Audio Layer 3, commonly called MP3, is a popular digital audio coding and lossy compression format.
MID:
MIDI is the abbreviation of English music instrument digital interface, which is translated as "digital musical instrument interface". The so-called MIDI file essentially refers to the data of MIDI information recorded in the computer. The extension of MID file is *.mid, which is different from another sound waveform file (*). Wav file) commonly used in computers? On the surface, both files can produce sound effects or music, but they are completely different in nature.
MMF:
SMAF, also known as SMAF, is the abbreviation of synthetic music mobile application format, and is a data format specification designed by Yamaha for multimedia content (programs) used by mobile phones, PDA and other portable terminals.
MFM doesn't know.
Autonomous mobile robot (abbreviation of Adaptive Multi-Rate)
The full names of adaptive multi-rate and adaptive multi-rate broadband are mainly used for audio of mobile devices. The compression ratio is relatively high, but the quality is poor compared with other compression formats. Because it is mostly used for voice and phone calls, the effect is still very good.
WMA
The full name of WMA is Windows Media Audio, which is a new audio format with the same name as the MP3 format introduced by Microsoft.
space
The audio and video compression specification formulated by Real Networks Company is called Real Media.
MIDI is not called audio format, so I don't know what it is called. But their properties are MIDI sequence files.
Actually, as far as I know, MP3 is the most popular one now. Followed by WMA and rm (video is RM, audio is RA).
Regardless of the volume factor, CD and ape are the most faithful to the original sound quality.
On the combination of compression ratio and sound quality, that is, cost performance, surpassing MP3. As far as I know, only AAC is available.
Others are not very popular. If you want to know more, you can go up/check.