Sonix transcribes your AIF file and creates closed captions that make your content accessible to everyone.
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.
Lossless format - maximum audio quality preserved
Sign up for Sonix's free trial. Includes 30 minutes free.
Upload your AIF file from your computer or cloud storage.
Choose from 54+ languages spoken in your file.
Sonix AI transcribes your AIF with word-level timestamps.
Fine-tune timing and formatting for accessibility.
Download closed captions in SRT and VTT formats.
Yes! Sonix transcribes your AIF file with precise timestamps and creates closed captions in standard formats.
Closed captions include non-speech elements like [music], [applause], and speaker identification. They're designed for deaf and hard-of-hearing viewers.
Yes! Sonix captions meet accessibility requirements when properly reviewed and edited. Our editor helps ensure timing and accuracy standards.
Export captions as SRT, VTT, or TTML. Each format has specific use cases.
Yes! Use our editor to add [music], [laughter], and other non-speech descriptions for full accessibility.
Absolutely! Captions make your video content searchable and improve accessibility, both of which can boost SEO rankings.
Create captions that make your content accessible to deaf and hard-of-hearing viewers.
Meet accessibility requirements with properly formatted closed captions.
Add non-speech elements like [music] and [applause] for full context.
Captions make video content searchable and improve discoverability.
I was amazed that Sonix picked up words that I couldn't even understand.
It's SO fast! I couldn't believe it. It's saved me hours of time.
Truly amazing. Saved me hours of work. And about 95% accurate which is great for a South African accent recording.
Really fast to transcribe our audio files with high accuracy, we just had to correct some small words. I like the layout of the website, how pleasing to the eye and easy it is to edit your files, n...
The experience is fantastic, the system is easy to use, and transcription quality in different languages is unbeatable. Sonix is the best system I've tried so far...and I know one ...
Surprisingly accurate transcription across a number of European accents (Yorkshire, Scottish, Oxford, Italian!)
The transcription service was awesome. I can’t thank Sonix enough.
It really accelerated my work and I was amazed by the accuracy, especially given that the video featured only non-native speakers.
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AI transcription and translation in 54+ languages.
