Convert M4V to CAF
Convert any video file to CAF format online for free. Fast, secure, and easy-to-use video to CAF converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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How to Use M4V → CAF
Upload File
Drag and drop your M4V file or click to browse. Supports files up to 1GB.
Convert
Select CAF as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
Why Choose Scriptivox M4V to CAF Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
100% Free
Convert your files completely free with no hidden costs or subscription fees.
Secure & Private
Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
M4V vs CAF: format comparison
How the two formats differ on the things that change your result.
| Specification | M4V (source) | CAF (result) |
|---|---|---|
| Container | MPEG-4 (Apple variant) | Core Audio Format |
| Developed by | Apple | Apple |
| Introduced | 2005 | 2005 |
| Audio codecs | AAC, AC-3 | PCM, ALAC, AAC, Opus |
| Compression | Lossy | Depends on codec |
| Approx. file size | 30–150 MB per minute | 1–32 MB per minute |
| Metadata / tags | Container tags | CAF metadata chunks |
| Licensing | Patent-licensed | Proprietary |
| Plays natively on | Native: macOS, iOS · Needs a player: Web browsers, Windows, Android, Smart TVs | Native: macOS, iOS · Needs a player: Windows, Web browsers |
| Best for | the Apple ecosystem, iTunes libraries, home theatre | iOS development, the Apple ecosystem, very long recordings |
What changes when you convert M4V to CAF
This extracts the audio and discards the video entirely. The soundtrack inside a M4V file is typically AAC, and it is re-encoded to PCM on the way out.
Expect a much smaller file. Video accounts for most of the bytes, so about 90 MB per minute becomes roughly 17 MB per minute of CAF.
Subtitles do not survive audio extraction, since an audio container has nowhere to store them.
When a video holds several audio tracks, the main one is extracted; alternate language tracks are not merged into the result.
About M4V to CAF Conversion
Extracting CAF audio from a M4V video pulls the soundtrack out of the MPEG-4 (Apple variant) container and writes it as a standalone Core Audio Format file. The video stream, which holds most of the data, is discarded.
Developed by Apple in 2005, M4V stores audio using H.264. That codec choice sets the upper bound on what any conversion can preserve.
CAF, from Apple and dating to 2005, uses PCM, ALAC, AAC, Opus and plays natively on 2 of the six platform categories we track. That combination is usually why people convert into it.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
M4V to CAF: common questions
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