Convert AVI to AIFF Online Free
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Extract the audio from your AVI video and save it as AIFF — Apple's uncompressed professional audio format. Ideal for importing AVI audio into Logic Pro and Mac-based production workflows.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile extracts audio from your AVI video and converts it to uncompressed AIFF using FFmpeg on our secure servers. AIFF is Apple's native uncompressed audio format, preferred for Logic Pro and professional Mac audio workflows. Files are auto-deleted, free with no signup required.
AVI vs AIFF: Format Comparison
Key differences between the two formats
| Feature | AVI | AIFF |
|---|---|---|
| Type | Microsoft video container | Apple uncompressed audio container |
| Developer | Microsoft | Apple Computer |
| Audio codec | MP3, PCM, or AC-3 | Uncompressed PCM audio |
| File size | Moderate to large (video included) | Very large — no audio compression |
| Audio quality | Lossy MP3 or uncompressed PCM | Maximum — bit-perfect uncompressed |
| Mac compatibility | Requires QuickTime or VLC | Native on macOS, iOS, Logic Pro, Pro Tools |
| Use case | Legacy Windows video | Professional audio production, Mac DAWs |
When to Convert
Common scenarios where this conversion is useful
Import legacy AVI audio into Logic Pro for Mac
Logic Pro does not open AVI files natively. Extract the audio as AIFF to import it directly into your Logic Pro project. AIFF is Logic's preferred uncompressed format and integrates without any additional format conversion.
Get uncompressed audio from AVI for professional mixing
AVI files with PCM audio contain uncompressed source audio. Converting to AIFF preserves this uncompressed data in an Apple-native container, ready for professional mixing in Logic Pro, Pro Tools, or Nuendo on Mac.
Rescue audio from old AVI home videos for Mac archiving
Irreplaceable moments captured on old DV or digital camcorders in AVI format can have their audio extracted to AIFF — an enduring, lossless Apple format for permanent archiving on Mac.
Extract AVI audio for use in Mac samplers
Logic Pro's EXS24 sampler and Native Instruments Kontakt on Mac read AIFF files natively. Extract interesting audio from AVI recordings to AIFF to use as samples in music production.
Provide uncompressed AVI audio for mastering
When AVI files contain PCM audio and you need to deliver uncompressed material to a mastering engineer who works on Mac, AIFF is the natural target format — lossless, Apple-native, and universally understood by Mac DAWs.
Who Uses This Conversion
Tailored guidance for different workflows
Podcasters
- Pull the audio from a recorded AVI interview or webinar and publish it as a AIFF episode
- Convert a AVI livestream recording to AIFF so listeners can catch up on the go
Musicians & Producers
- Extract a performance take from a AVI video into AIFF to edit in your DAW
- Rip reference audio from a AVI clip to AIFF for sampling or transcription
Content Creators
- Convert a AVI recording to AIFF to reuse the soundtrack as background audio or a voiceover
- Turn a AVI talk into a AIFF audiogram or clip for social platforms
How to Convert AVI to AIFF
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1
Upload your AVI file
Drag and drop your .avi file onto the converter or click to browse and select it. The free tier accepts files up to 25MB; eligible paid browser access accepts up to 100MB.
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2
Server-side AIFF conversion
Your AVI is uploaded over HTTPS and FFmpeg decodes the audio stream (MP3, PCM, or AC-3 as applicable) and writes it as uncompressed PCM audio in an AIFF container. The video stream is discarded.
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3
Download your AIFF file
Click Download to save the .aiff file. AIFF files are large due to uncompressed audio. Both the AVI and AIFF are deleted from our servers after download.
Developers: convert via API →
Frequently Asked Questions
Yes. If the AVI contains uncompressed PCM audio (common in DV camera recordings), converting to AIFF is a lossless process. The AIFF simply re-wraps the PCM data in an Apple-native container.
Yes. The AIFF stores the decoded MP3 audio as uncompressed PCM without adding any further quality loss. It represents the audio at its best possible state given the lossy source, avoiding any additional codec degradation.
AIFF is uncompressed. Audio size depends on duration, sample rate, and bit depth, not the original video size. A 5-minute audio track at 44.1 kHz stereo produces approximately 50MB. Long AVI recordings produce very large AIFF files.
Yes. Logic Pro opens AIFF files natively regardless of their original source. Drag the AIFF file into the Logic Pro timeline and it will appear as an audio region ready for editing and mixing.
Both are uncompressed PCM audio with equivalent quality. AIFF was developed by Apple and is preferred on macOS (Logic Pro, GarageBand). WAV is the Windows equivalent. For Mac workflows, AIFF is the natural choice.
FFmpeg writes AIFF at the native sample rate and bit depth of the source AVI audio. Common values are 44.1 kHz / 16-bit (consumer video) or 48 kHz / 16-bit (DV standard), which the AIFF will reflect.
Yes. GarageBand on iPad and iPhone supports AIFF. Import via the Files app or Media Browser inside GarageBand.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees.
Conversion is typically fast — FFmpeg processes only the audio stream without video. Most AVI files convert in under 30 seconds. The large AIFF download may take longer depending on your connection speed.
Yes. All uploads are HTTPS-encrypted and files are deleted from our servers immediately after conversion. We never retain, access, or share your content.
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