How do I accurately convert my AIFF files to closed captions? 
Sonix uses the latest automated transcription technology to convert your audio files (*.aiff) to closed captions. Follow these six steps and see how magical it is:
Step 1
Sign up for a free Sonix trial account—includes 30 minutes of free AIFF to captions conversion.
Step 2
Upload the Audio Interchange File Format file(s) (*.AIFF) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Step 3
Choose the language spoken in the uploaded AIFF file. We support over 50 different languages including Russian, Chinese, Spanish, and English. Click the 'Start Transcribing Now' button.
Step 4
Sonix will then automatically transcribe the audio from your AIFF file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.
Step 5
Use the Sonix AudioText Editor to polish your transcript before we convert it to a caption file. Simply type in your browser to correct any words in your transcript.
Step 6
Click the 'Export' button. Choose either 'Subrip subtitle file (.srt)' or 'WebVTT file (.vtt)' from the dropdown to download the closed caption version of your AIFF file. You can also adjust the character length and time duration length of each caption.
That's it! Your AIFF file has now been converted to closed captioning and is ready for the next step in your workflow!
Thousands of customers create closed captions from their AIFF files with Sonix 
Frequently Asked Questions for Audio Interchange File Format (*.AIFF) to subtitle 
What is a AIFF file?
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.
Does Sonix transcribe audio files with a *.AIFF file extension?
Yes, Sonix does automatically transcribe audio files with a .AIFF file extension. Sonix is an online audio to text converter. Convert any audio (aiff, mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.AIFF files and converts them to text in a subtitle format.
Know anyone who needs to convert Audio Interchange File Format (.AIFF) to subtitle?
We'd appreciate it if you tell them about Sonix—the best way to convert AIFF to subtitle.
Other ways to convert your AIFF audio files with Sonix
AIFF to text
Use the most accurate speech-to-text technology to convert files: AIFF to text.
AIFF to docx
Accurately transcribe your AIFF file to Microsoft Word Format (docx) so you can bring the transcript into your workflow.
AIFF to PDF
Easily transcribe your AIFF file to Adobe's Portable Document Format (pdf) so you can share them with colleagues.
AIFF to subtitles
Create subtitles for your AIFF files to make them more accessible for your audience.
AIFF to srt
Quickly create subtitles from your AIFF files and save them as SRTs, one of the most widely supported subtitle formats.
AIFF to VTT
Create more advanced captions for your AIFF files by using the latest caption format VTT (Video Text Tracks).
Create closed captions from your Audio Interchange File Format files with Sonix 
Sonix automatically transcribes and translates your audio/video files in 50+ languages. Easily search, edit, and share your media files. Sonix is an online, fully-automated speech to text service that quickly converts Audio Interchange File Format files to captions. Fast, accurate, and affordable. Millions of users from all over the world.
Includes 30 minutes of free transcription
