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AVI FORMAT

AVI Converters

Extract audio from legacy AVI videos and camcorder recordings.

About AVI

AVI (Audio Video Interleave) is Microsoft's original video container format, introduced with Windows 3.1 in November 1992. One of the oldest digital video formats still in use, AVI stores video and audio in interleaved chunks for synchronized playback. The format supports virtually any codec combination—DivX, XviD, H.264 video paired with MP3, PCM, or AC3 audio. AVI's simplicity and wide codec support made it the dominant format for digital video throughout the 1990s and 2000s.

Learn more: AVI on Wikipedia

While largely replaced by MP4 for new content, millions of AVI files remain in personal archives, legacy systems, and older digital camcorder recordings. Many users have AVI files from the early internet era (DivX movie downloads) or old camcorders that they want to preserve. Modern devices and apps often reject AVI playback entirely, making audio extraction one of the most practical ways to preserve the content in a usable format.

Quick Facts

Extension
.avi
Developed By
Microsoft
First Released
November 1992
Video Codecs
DivX, XviD, H.264
Audio Codecs
MP3, PCM, AC3
Max Resolution
4K (4096×2160)
Format Age
30+ years
Status
Legacy format

Extract Audio from AVI (2 tools)

Frequently Asked Questions

Why do I still have AVI files in 2025?

AVI was the dominant video format for over a decade (1995-2008). If you have old digital videos—from early camcorders, downloaded movies from the DivX/XviD era, or archived content—they're probably AVI files.

Many people have hundreds of AVI files in backup drives. The format is obsolete for new content, but perfectly valid for preserving existing recordings.

What audio quality do old AVI files have?

AVI files typically contain MP3 audio at 128-192 kbps (for compressed videos) or PCM uncompressed audio (from camcorders). Some movie rips include AC3 Dolby Digital 5.1 surround sound.

The audio quality varies wildly—2001 internet downloads were often 64-96 kbps MP3, while camcorder recordings preserved full-quality PCM audio.

Why won't my phone play AVI files?

Neither iOS nor most Android devices support AVI playback. The format predates smartphones by 15 years, and phone manufacturers didn't include legacy codec support.

Your options: Install VLC Player (works on both platforms), convert the entire video to MP4, or simply extract the audio if that's all you need. Audio extraction is fastest and produces universally compatible files.

Should I convert my AVI archive to MP4?

For archival purposes, keep the original AVI files. Re-encoding lossy video always reduces quality. AVI as a container format is perfectly stable for long-term storage.

If you just want the audio content—family conversations, music, lectures—extracting to MP3 or WAV gives you a universally playable file without touching the video archive.