| Format introduction | Audio Video Interleaved (also Audio Video Interleave), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback. | Waveform Audio File Format is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format. |
| Technical details | AVI is a derivative of the Resource Interchange File Format (RIFF), which divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag. An AVI file takes the form of a single chunk in a RIFF formatted file, which is then subdivided into two mandatory "chunks" and one optional "chunk". | Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse code modulation (LPCM) format. Audio in WAV files can be encoded in a variety of audio coding formats, such as GSM or MP3, to reduce the file size. |
| File extension | .avi | .wav .wave |
| MIME | video/vnd.avi, video/avi, video/msvideo, video/x-msvideo | audio/vnd.wave, audio/wav, audio/wave, audio/x-wav |
| Developed by | Microsoft | Microsoft & IBM |
| Type of format | video file format | audio file format, container format |
| Associated programs | Windows Media Player, Windows Movie Maker, Avidemux, AviSynth, Adobe After Effects, Media Player Classic, VLC. | ALLPlayer, VLC media player, Media Player Classic, MPlayer, RealPlayer, Winamp. |
| Wiki | https://en.wikipedia.org/wiki/Audio_Video_Interleave | https://en.wikipedia.org/wiki/WAV |