Name | WMA | AVI |
Full name | WMA - Windows Media Audio | AVI - Microsoft Audio/Visual Interleaved |
File extension | .wma | .avi |
MIME type | audio/x-ms-wma | video/vnd.avi, video/avi, video/msvideo, video/x-msvideo |
Developed by | Microsoft | Microsoft |
Type of format | Audio file format | video file format |
Description | Windows Media Audio (WMA) is an audio data compression technology developed by Microsoft. The name can be used to refer to its audio file format or its audio codecs. It is a proprietary technology that forms part of the Windows Media framework. Each WMA file features a single audio track in one of the four sub-formats: WMA, WMA Pro, WMA Lossless, or WMA Voice. | 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. |
Technical details | A WMA file is in most circumstances contained in the Advanced Systems Format (ASF), a proprietary Microsoft container format for digital audio or digital video. The ASF container format specifies how metadata about the file is to be encoded, similar to the ID3 tags used by MP3 files. Metadata may include song name, track number, artist name, and also audio normalization values. | 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'. |
File conversion | WMA conversion | AVI conversion |
Associated programs | ALLPlayer, VLC media player, Media Player Classic, MPlayer, RealPlayer, Winamp. | Windows Media Player, Windows Movie Maker, Avidemux, AviSynth, Adobe After Effects, Media Player Classic, VLC. |
Wiki | https://en.wikipedia.org/wiki/Windows_Media_Audio | https://en.wikipedia.org/wiki/Audio_Video_Interleave |