Convert AIF to subtitles

Sonix transcribes your AIF file and creates timestamped subtitles in SRT, VTT, and other formats.

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SRT & VTT
5-min turnaround
All platforms
AIF conversion guide

Create subtitles from AIF in 6 steps

  1. 1
    Create account~30 sec

    Sign up for a free Sonix trial with 30 free minutes.

  2. 2
    Upload file~1 min

    Upload your AIF file from your computer or cloud storage.

    44+ formats supported
  3. 3
    Select language~10 sec

    Select the language spoken in your file.

    54+ languages
  4. 4
    Auto-transcribe~5 min

    Sonix AI transcribes your AIF with word-level timestamps.

  5. 5
    Split subtitles~2 min

    Customize line length, duration, and subtitle breaks.

  6. 6
    Export~10 sec

    Download your subtitles as SRT or VTT files.

    30+ export formats
The AIF file format

Understanding AIF files

What is a AIF file?

Uncompressed Apple audio format with CD-quality sound

The .AIF file format was developed by Apple in 1988 and is based on the IFF (Interchange file format). Unlike MP3 files, .AIF files are not compressed. Thus, they are larger than MP3 files and have considerably higher quality audio stored. They are usually 10MB for ever minute of audio. Usually, Windows software will create .AIF files.

Common uses for AIF files

  • Professional audio production
  • Music mastering
  • Archival recordings
  • Logic Pro exports
  • Professional recording software
  • Audio archives

Who works with AIF files?

Voice-over artists, film and TV sound editors, and podcast producers on Mac-based workflows often deliver finished audio as AIF files. Session musicians and mixing engineers also rely on the format when exchanging stems and final masters between digital audio workstations.

AIF vs WAV: which should you use?

AIF and WAV both store uncompressed PCM audio, so sound quality and file size are essentially identical at the same bit depth and sample rate. The practical difference is origin and ecosystem: AIF is Apple's IFF-based format favored by Mac software like Logic Pro, while WAV is the Microsoft/IBM RIFF format more widely expected by Windows applications. Choose AIF for Mac-centric production chains and WAV when a recipient or tool expects the Windows standard.

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Get your AIF subtitles in minutes
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53+
Languages
Subtitles in any language
30+
Export formats
SRT, VTT, FCPXML, and more
AIF conversion FAQ

AIF subtitles: frequently asked questions

Can you create subtitles from AIF files?

Yes! Sonix transcribes your AIF file with word-level timestamps and creates professional subtitles in SRT, VTT, and other formats.

What subtitle formats are supported?

Export subtitles as SRT (most universal), VTT (web video), FCPXML (Final Cut Pro), and many more formats.

Can I customize subtitle timing?

Yes! Adjust max characters per line, lines per caption, max duration, and manually fine-tune any timing.

How do I add subtitles to my video?

Upload the SRT/VTT file to YouTube, Vimeo, or import into your video editor. You can also burn subtitles directly into the video.

Can I translate subtitles?

Yes! Sonix can translate your subtitles into 55+ languages, making your content accessible globally.

Are the subtitles accurate?

Sonix achieves up to 99% accuracy. Use our editor to make any corrections before exporting.

What is the difference between AIF and AIFF files?

They are the same Audio Interchange File Format; .aif is simply the shortened three-character extension. Any application that opens AIFF files can open AIF files.

Why are my AIF files so large?

AIF stores uncompressed PCM audio, so a CD-quality stereo recording takes roughly 10 MB per minute. The upside is that no audio detail is lost to compression, which also makes the files well suited to transcription.

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