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Upload CAF audio from an iPhone or Mac app and get an accurate, editable transcript in minutes.
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Supports 20+ file formats including MP3, MP4, WAV
CAF (Core Audio Format) is Apple's audio container, used by some iPhone and Mac apps and by older Voice Memos. Upload a .caf file and Scriptivox turns the speech in it into an accurate transcript with timestamps and speaker labels, which you can edit and download as TXT, DOCX, PDF, CSV, SRT or VTT.
CAF files come from Apple apps and developer tools such as Logic Pro, and from older Voice Memos. Find the .caf file in Finder, then upload it.
Leave it on auto-detect or pick one of more than 100 languages. Turn on speaker recognition when more than one person talks.
Read the transcript with timestamps, correct any word in the editor, then download it as TXT, DOCX, PDF, CSV, SRT or VTT.
| Specification | Value |
|---|---|
| Container | Core Audio Format |
| Developed by | Apple |
| Introduced | 2005 |
| Audio codecs | PCM, ALAC, AAC, Opus |
| Compression | Depends on codec |
| Max sample rate | 192 kHz |
| Max bit depth | 32 bit |
| Max channels | 8 |
| Gapless playback | Yes |
| Metadata / tags | CAF metadata chunks |
| Approx. file size | 1–32 MB per minute |
| Licensing | Proprietary |
| Plays natively on | Native: macOS, iOS · Needs a player: Windows, Web browsers |
| Best for | iOS development, the Apple ecosystem, very long recordings |
Advanced AI technology meets simple, intuitive design
Powered by next-generation AI designed for seamless speech understanding worldwide
Transcripts delivered in real time and large files processed in minutes, not hours.
Your data is protected with end-to-end encryption, privacy-first safeguards, and enterprise-grade security controls.
Supports uploads of up to 10 hours, designed for uninterrupted transcription of lengthy sessions.
Global coverage with accent recognition and dialect adaptation, ensuring inclusivity worldwide.
You don't need to. Upload the .caf file here from any computer and get the text, with no Apple software needed.
Some Apple apps save audio in Core Audio Format because it can hold very long recordings. It transcribes like any other audio file.
You can start free, with no card, and transcribe short files every day. Pro adds unlimited transcriptions and files up to 10 hours or 5 GB each.
Yes. Turn on speaker recognition and each part of the transcript is labelled with its speaker, so interviews and meetings read like a script.
More than 100, from English, Spanish and Hindi to Arabic, Japanese and Swahili. Leave the language on auto-detect, or choose it for the best result on short files.
Files are transcribed many times faster than they play, so most are ready in a few minutes. Long recordings take a little longer, and you can close the page while they run.
Join thousands of users who trust Scriptivox for their transcription needs