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AIFF to SRT

AIFF to SRT, Mac audio to subtitles

Turn an AIFF audio file into an SRT subtitle file on your own computer. SnailText transcribes the lossless audio and writes the SRT with phrase-level timing - no upload and no per-minute billing.

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Generate SRT locally, nothing uploaded

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Convert AIFF to an SRT subtitle file

AIFF (Audio Interchange File Format) is the lossless audio format native to macOS and older Apple tools. It is common in professional audio production, Logic Pro exports, and archival recordings. SnailText decodes the AIFF audio using a one-time codec pack, transcribes the speech with the Whisper model, and writes a phrase-level SRT, all on your machine.

Lossless input gives Whisper clean audio. You get a standard .srt file ready to use in any subtitle editor or video player.

How to convert AIFF to SRT

  1. Open the Transcribe files screen in SnailText.
  2. Add your AIFF audio file (or a folder of them).
  3. Choose SRT as the output before you run it.
  4. Run it. The .srt file is saved next to your audio.

Try it on your own files

Download for Mac

Generate SRT locally, nothing uploaded

AIFF to SRT free, without uploading the file

Online AIFF-to-SRT tools upload your audio to a server. SnailText does it locally: the file stays on your machine, there is no length limit, and the free tier has no watermark. AIFF uses a one-time codec pack the app downloads for you, then runs offline.

If you only want the plain transcript of an AIFF rather than a subtitle file, the AIFF to text page covers that. If you need VTT instead of SRT, the AIFF to VTT page covers that.

AIFF to SRT FAQ

How do I convert an AIFF file to SRT?
Install SnailText, open Transcribe files, add your AIFF, choose SRT as the output, and run it. It generates the SRT locally. AIFF uses a one-time codec pack the app downloads for you, then the transcription runs offline.
What is AIFF and can SnailText transcribe it?
AIFF (Audio Interchange File Format) is the lossless audio format native to macOS and Apple tools. SnailText decodes AIFF and writes an SRT with phrase-level timing, all locally, with no upload.
What is the difference between AIFF to SRT and AIFF to text?
AIFF to SRT produces a timed subtitle file (.srt) with start and end times per phrase. AIFF to text produces a plain transcript with no timestamps. SnailText does both, you just pick the output before the run.
Will the subtitles be burned into the video you pair the AIFF with, or is the SRT a separate file?
No. SnailText writes a separate SRT file and does not hardcode captions into the video. That keeps the subtitles editable and lets you attach them in any player or editor. If you want them burned in, overlay the file in a video editor afterward.

More ways to transcribe and caption

All formats

Audio to SRT →

Turn any audio recording into an SRT subtitle file on your own computer, with no upload and no per-minute billing. If you know your format, there is a dedicated guide for it - links below.

Same format, other output

AIFF to VTT →

Related formats

Subtitle hubs

All transcription formats →

Generate an SRT from your AIFF

Free local subtitle generation, no account needed. SRT files on Mac and Windows.

Download for Mac Or for Windows →