Convert FLV to AIFF Online Free
Extract the audio from your FLV Flash video and save it as AIFF — Apple's uncompressed audio format. Ideal for preserving Flash-era audio in a lossless format for Mac production workflows.
ChangeThisFile extracts audio from your FLV Flash video and converts it to uncompressed AIFF using FFmpeg on our secure servers. AIFF is Apple's professional audio format, ideal for Logic Pro and Mac DAW workflows. Files are auto-deleted, completely free with no signup needed.
Convert FLV to AIFF
Drop your FLV file here to convert it instantly
Drag & drop your .flv file here, or click to browse
Convert to AIFF instantly
FLV vs AIFF: Format Comparison
Key differences between the two formats
| Feature | FLV | AIFF |
|---|---|---|
| Type | Adobe Flash video container | Apple uncompressed audio container |
| Developer | Adobe Systems (EOL) | Apple Computer (active) |
| Status | Obsolete — Flash EOL 2020 | Standard macOS audio format |
| Compression | Lossy (MP3, AAC) or PCM | Uncompressed PCM — no quality loss |
| File size | Small to moderate (video included) | Very large — uncompressed audio |
| Mac compatibility | Requires VLC or FFmpeg | Native — Logic Pro, GarageBand, QuickTime |
| Use case | Legacy Flash-era web video | Professional audio production on Mac |
When to Convert
Common scenarios where this conversion is useful
Import FLV audio into Logic Pro without additional codec overhead
Logic Pro does not open FLV files. Converting to AIFF gives you a file that Logic Pro imports natively as an audio region — no format conversion happens inside Logic, preserving audio quality through your session.
Archive Flash-era audio in an uncompressed Apple format
AIFF is an enduring Apple format with no compression artifacts or future codec deprecation risk. Convert FLV audio to AIFF for a permanent, lossless-quality archive of old Flash-era content on your Mac.
Provide clean audio from FLV sources for mastering
If you need to submit audio for mastering from an FLV source, converting to AIFF provides an uncompressed representation of the audio without any additional encoding artifacts — the cleanest possible state for the mastering engineer.
Use FLV audio samples in Logic Pro's EXS24 sampler
Logic Pro's EXS24 sampler reads AIFF natively. Extract audio from FLV videos — sound effects, musical snippets, speech — to AIFF for use as samples in music production on Mac.
Convert FLV lecture audio for professional editing on Mac
Educational lectures from the Flash era delivered as FLV can have their audio extracted to AIFF for professional editing in Logic Pro, Final Cut Pro (audio import), or Audacity on Mac.
How to Convert FLV to AIFF
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1
Upload your FLV file
Drag and drop your .flv file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side AIFF conversion
Your FLV is uploaded over HTTPS and FFmpeg extracts and decodes the audio (MP3, AAC, Nellymoser, or PCM as applicable), writing 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. The FLV and AIFF are both deleted from our servers after download.
Frequently Asked Questions
AIFF stores audio as uncompressed PCM — lossless from the point of decoding. If the FLV audio was MP3 or AAC (lossy), the AIFF stores the decoded audio without further degradation. It cannot recover quality lost by prior lossy encoding.
Both AIFF and FLAC are lossless. AIFF is preferred for Logic Pro and other Mac-native DAWs. FLAC uses lossless compression (smaller file size) but AIFF is uncompressed. For Logic Pro workflows on Mac, AIFF is the natural choice.
AIFF is uncompressed. A 5-minute audio track at 44.1 kHz stereo produces approximately 50MB. FLV files have much smaller audio (lossy), but the AIFF output reflects the uncompressed equivalent size.
Yes. Logic Pro imports AIFF files natively regardless of their source. Drag the AIFF into the Logic timeline and it appears as a standard audio region ready for editing.
FFmpeg decodes Nellymoser from FLV and writes it as PCM in AIFF. Nellymoser was a very low-quality voice codec, so the AIFF output will reflect those quality limitations — AIFF conversion does not improve source quality.
Yes. AIFF is supported natively on iOS. AIFF files can be played in the Music app and Files app, and imported directly into GarageBand on iPhone and iPad.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees.
FFmpeg writes AIFF at the sample rate and bit depth of the decoded FLV audio. FLV audio is typically 44.1 kHz or 22.05 kHz at 16-bit stereo, which the AIFF will reflect.
Conversion is typically fast — under 30 seconds for most files. FFmpeg decodes audio and writes uncompressed PCM without video processing. 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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