Step 1: Supply your AVI files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted AAC files.
AVI to AAC Conversion FAQ
How do I extract the audio from a AVI as AAC?
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Upload the AVI file and the converter demuxes the audio track, then re-encodes it as AAC. No re-encoding of the video happens — only the audio stream is processed, which keeps it fast even on long videos.
Will the audio quality match the original AVI track?
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Yes — the audio is extracted at the source bitrate where possible. If you pick a higher AAC bitrate than the source, the file will not improve in quality, just grow in size.
Is the AVI to AAC conversion reversible?
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You can convert the AAC back to AVI on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
What output quality should I expect from AVI to AAC?
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Default settings target broadcast / web quality — visually identical to the source for most viewers. For archival use, pick the highest quality option in the converter settings.
Is converting AVI to AAC a second round of lossy compression?
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Yes, and it is worth planning around. Both formats are lossy, so the AAC encoder is working from audio that has already been through one psychoacoustic pass, and its own decisions compound the first set. At 192 kbps or above the result is still transparent for most listening. If you have a lossless master anywhere, encoding the AAC from that instead avoids the double pass entirely. AVI files predate modern codecs: expect MPEG-4 Part 2 (DivX/Xvid), Motion JPEG or raw uncompressed frames rather than H.264. AAC is lossy but more efficient than MP3, and it handles up to 48 channels natively rather than being bolted onto a stereo design.
Can I tag the AAC with artist and album information?
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Yes, and it is a genuine gain over AVI, which has nowhere dependable to store any of it. AAC carries title, artist, album, year, track number and embedded cover art in the container itself, so a music library files it correctly without a manual pass. AAC sounds noticeably better than MP3 below 128 kbps and is the default audio track in MP4, YouTube, Apple Music and broadcast.
Will a very large AVI file upload successfully?
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Free accounts cap at 100 MB per file, and AVI sources run large because the format carries substantial per-chunk overhead on top of the video data. Premium lifts the cap considerably. If the file is split into numbered parts because of the format ceiling, upload them together and they are treated as one job. AVI has no native support for modern codecs, variable frame rate, soft subtitles or files over 4 GB without hacks, and its per-chunk overhead bloats the file.
Is there a file-size limit when converting AVI to AAC?
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Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several AVI files to AAC at once?
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Yes. Drop or pick multiple AVI files in one upload — the converter processes them in parallel and returns a ZIP of the AAC results. There is no need to repeat the upload step per file.
What happens to my AVI files after the conversion?
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Uploaded files and AAC outputs are auto-deleted after a short retention window. We do not inspect, share, or train on user files. Direct download links are time-limited and tied to your session.
What apps can play a AAC file?
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AAC plays in most music players, browsers, and media libraries. iTunes / Apple Music, VLC, Foobar2000, and phone media apps handle it natively.
Do I need to install software to convert AVI to AAC?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
