Convert AIFF to subtitles

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

SRT & VTT
5-min turnaround
All platforms
Audio
Video
DOCX
SRT/VTT
PDF
53+ Languages
About This Format

Understanding AIFF files

What is a AIFF file?

Apple's standard uncompressed audio format

The AIFF file format was developed by Apple and is based on the Electronic Arts .IFF file format. Standard CD audio AIFF files are sampled at 44.1KHz, are 16-bit, and have two channels for stereo sound. You’ll usually see the extension .AIFF from files that were saved by macOS machines. AIFF files are uncompressed and do have larger file sizes to accomodate the higher quality audio that are stored on them.

Common Uses

  • Professional music production
  • Broadcast audio
  • Lossless audio archiving

Audio Quality

Lossless CD-quality audio, approximately 10MB per minute

Transcription Tips for AIFF

  • Ideal for transcription - full audio fidelity
  • Consider converting to MP3 for faster uploads

Where AIFF Files Come From

  • macOS audio applications
  • GarageBand exports
  • Professional DAWs
10x
Faster than real-time
Get your AIFF subtitles in minutes
99%
Accuracy rate
Industry-leading AI for AIFF files
53+
Languages
Subtitles in any language
30+
Export formats
SRT, VTT, FCPXML, and more
How It Works

Create subtitles from AIFF in 6 steps

Step 1

Create account

Sign up for Sonix's free trial. Includes 30 minutes free.

Step 2

Upload file

Upload your AIFF file from your computer or cloud storage.

Step 3

Select language

Choose from 54+ languages spoken in your file.

Step 4

Auto-transcribe

Sonix AI transcribes your AIFF with word-level timestamps.

Step 5

Split subtitles

Customize line length, duration, and subtitle breaks.

Step 6

Export

Download subtitles as SRT, VTT, or other formats.

Common Questions

Everything about AIFF subtitles

Can you create subtitles from AIFF files?

Yes! Sonix transcribes your AIFF 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.

Why Sonix

Professional subtitles from AIFF files

Multiple Formats

Export subtitles as SRT, VTT, FCPXML, and more for any platform.

Customizable

Control line length, duration, and style of your subtitles.

Translate

Create subtitles in 54+ languages from your original audio.

Burn-in Option

Permanently embed subtitles into your video with one click.

Reviews

Trusted by content creators

4.98 rating from 211 reviews

Fast, easy transcription. Also the ability to edit in the software with the recording before exporting is a great feature. I have already recommended you to a friend.
SK
Sam K.
Miami, FL USA
You saved me! I got everything done in three days and I was sure it will take me a month.
WO
Wojciech O.
Gandsk, Poland
Sonix is the best transcription program I've ever used. It was almost error-free. I wish I could have used it longer!
AI
Aliye I.
Istanbul, Turkey
I have tested your product among others, and I have to say, Sonix provides the best results, a really great product!!!
DB
Dan B.
London, Ontario, Canada
It's simply an amazing resource for anyone working with the spoken or written word.
DW
Dennis W.
Daly City, CA, USA
I came across Sonix by accident... and boy was I glad I did. This tool is virtually word perfect and the SRT file it output worked perfectly...
JW
John W.
London, United Kingdom
Get Started

Create AIFF subtitles now

Try Sonix free with 30 minutes of transcription. No credit card required.

99% accuracy. Every word matters.

AI transcription and translation in 54+ languages.

30 minutes free
No credit card
Cancel anytime