Audio Video Interleave
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Audio Video Interleave (also Audio Video Interleaved and known by its initials and filename extension AVI, usually pronounced /ˌeɪ.viːˈaɪ/[3]) is a proprietary multimedia container format and Windows standard[4] 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. Like the DVD video format, AVI files support multiple streaming audio and video, although these features are seldom used.
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Filename extension | .avi |
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Internet media type | |
Type code | 'Vfw ' |
Uniform Type Identifier (UTI) | public.avi |
Developed by | Microsoft |
Initial release | November 10, 1992; 31 years ago (1992-11-10) |
Type of format | Container format |
Container for | Audio, video |
Extended from | Resource Interchange File Format |
Open format? | No |
Free format? | Yes[2] |
Website | https://docs.microsoft.com/en-us/windows/win32/directshow/avi-file-format |
Many AVI files use the file format extensions developed by the Matrox OpenDML group in February 1996.[5] These files are supported by Microsoft, and are unofficially called "AVI 2.0".[6] In 2010 the US government's National Archives and Records Administration defined AVI as the official wrapper for preserving digital video.[7]