AVI
AVI video containerUsed for recorded motion video with an accompanying soundtrack.
- Family
- Video
- MIME
- video/x-msvideo
Convert AVI to FLAC online
To convert AVI to FLAC, upload the AVI file, start the conversion and download the result: Converter.now writes a lossless FLAC (compression level 8). The first audio track is extracted and the picture is dropped. The FLAC is lossless, but it cannot bring back detail that AVI compression already discarded, so expect a larger file that looks the same.
◈ Encrypted transfer◷ Short retention⊘ No watermark◎ Works on every device
AVI to FLAC at a glance
- Converts
- AVI video container → Free Lossless Audio Codec
- Output
- A lossless FLAC (compression level 8)
- Compression
- AVI: lossy → FLAC: lossless
- Engine
- FFmpeg
- Privacy
- Private download link; files are deleted after 6 hours. No account needed.
Audio-stream extraction: How AVI becomes FLAC
Only the audio stream inside AVI is pulled out - The picture stream is discarded entirely - And encoded as FLAC. What comes out is genuine audio, never a muted copy of the video. AVI is reconstructed from RIFF indexes and interleaved chunks; codec tags, frame timing, keyframes, and audio alignment determine whether seeking remains stable. FLAC output losslessly codes decoded samples and supports rich comments, yet it cannot reconstruct fidelity already removed by a lossy source codec.
Decoded media - An older Microsoft media container commonly paired here with Xvid video and MP3 audio. Encoded delivery profile - Losslessly compressed audio that preserves decoded samples and supports rich tags.
Not quite the pair you need? Browse more ways to convert AVI files or the FLAC converter hub for every route into and out of FLAC.
Before converting a whole batch, read the difference between a container and a codec; it explains why a familiar extension can still fail to play.
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FLAC
Free Lossless Audio CodecDesigned for lossless music archiving.
- Family
- Audio
- MIME
- audio/flac
What the AVI source carries and the FLAC output demands
What can fail when AVI video container is interpreted
AVI has limited support for modern metadata, captions, variable frame rates, and some web players.
What Free Lossless Audio Codec cannot safely promise
FLAC does not make a lossy source lossless again, and some basic players reject less common sample rates or channel layouts.
How the FLAC writer handles this route
The verified FLAC profile uses lossless compression level 8; it preserves decoded samples rather than source codec data.
Acceptance evidence for the converted FLAC
Record the AVI evidence before conversion
Test seeking and audio sync in the target player, not only the opening frame.
Test the FLAC file in its receiving workflow
Compare duration, sample rate, channels, peak levels, and tags with the decoded source.
The delivery decision for this AVI to FLAC route
Take this route when only dialogue, music, or a soundtrack needs to reach a FLAC-accepting system; hold onto AVI whenever its pictures, captions, or visual timing still matter.
What changes between the AVI model and the FLAC deliverable
- The first audio track is extracted and the picture is dropped.
- The FLAC is lossless, but it cannot bring back detail that AVI compression already discarded, so expect a larger file that looks the same.
- Treat AVI-specific metadata fields as optional in the FLAC result until you have actually confirmed they survived.