Convert AVI to AIFF — Free Online Converter
Convert Audio Video Interleave (.avi) to Audio Interchange File Format (.aiff) online for free. Fast, secure video conversion with no watermarks or re...
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Upload your .avi file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .aiff file when it's ready.
About AVI to AIFF Conversion
AVI's RIFF container can hold audio in many codecs — PCM, ADPCM, MP3, AC3, or even DTS. AIFF (Audio Interchange File Format) is Apple's uncompressed audio standard, developed in 1988 based on Electronic Arts' IFF structure. AIFF stores linear PCM data at full resolution (16-bit/44.1 kHz CD quality or higher), making it the macOS and Logic Pro equivalent of WAV. Converting AVI to AIFF extracts the audio track and writes it as lossless, uncompressed PCM in Apple's container format.
Why Convert AVI to AIFF?
Professionals working in Apple-centric audio production environments — Logic Pro, GarageBand, Final Cut Pro — prefer AIFF as their native lossless format. When extracting audio from AVI footage for mixing, mastering, or sound design, AIFF ensures zero quality loss and seamless integration with macOS audio tools. Unlike WAV, AIFF natively supports metadata chunks (ID3 tags) for titling and annotation.
Common Use Cases
- Extracting dialogue or sound effects from AVI footage for use in Logic Pro or GarageBand projects
- Creating lossless audio masters from AVI concert recordings or studio sessions
- Preparing voiceover tracks from AVI screen recordings for integration into Final Cut Pro timelines
- Archiving the audio component of legacy AVI files in a lossless format for long-term preservation
- Isolating audio from AVI surveillance recordings for forensic analysis where quality cannot be compromised
How It Works
FFmpeg extracts and decodes the AVI audio stream to raw PCM, then writes it into an AIFF container with the appropriate PCM encoding (big-endian signed integer). The sample rate and bit depth of the original audio are preserved — if the AVI contains 48 kHz/16-bit audio, the AIFF output will match exactly. If the AVI audio is already PCM, the process is essentially a remux with byte-order adjustment (RIFF uses little-endian, AIFF uses big-endian). Compressed AVI audio (MP3, AC3) is decoded to PCM first.
Quality & Performance
AIFF is lossless — if the AVI source contains uncompressed PCM audio, the conversion produces a bit-perfect copy with zero quality loss. If the AVI audio is already compressed (MP3, AC3), the AIFF output preserves exactly the quality of the decoded source — it will not restore detail lost during the original compression, but no further degradation occurs.
Device Compatibility
| Device | AVI | AIFF |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
TikTok
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Twitter/X
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Discord
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
Tips for Best Results
- 1If you plan to edit the extracted audio, AIFF is ideal because most Apple DAWs read it natively without import conversion overhead.
- 2Use AIFF-C (compressed AIFF) only if file size is a concern — it supports Apple Lossless compression within the AIFF container, cutting size by ~50% with no quality loss.
- 3Verify the source AVI's audio codec before converting — if it is already MP3, extracting to AIFF will not improve quality, only increase file size.
- 4For archival purposes, include the original AVI filename in the AIFF metadata comments field to maintain provenance.
Related Conversions
AVI to AIFF is the go-to conversion for Apple audio workflows requiring lossless quality. The resulting files integrate natively with Logic Pro, GarageBand, and Final Cut Pro while preserving every detail of the original audio track.