Video Conversion
Convert MP4 to CAF Online — Free
Fast, free MP4 to CAF converter. No registration required.
或从以下导入
200万+文件已转换
数千用户的信赖之选
安全传输
HTTPS 加密上传
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文件处理后自动删除
无需注册
即刻开始转换
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任何浏览器，任何设备
如何转换
1
Upload your .mp4 file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .caf file when it's ready.
什么是 MP4？
MP4 is the most widely used video container format. It stores video, audio, subtitles, and metadata. Compatible with virtually every device and platform, from smartphones to smart TVs.
格式详情
- 全称
- MPEG-4 Part 14
- 扩展名
- .mp4
主要特点
- Universal compatibility
- Streaming support
- Small file sizes
- Hardware-accelerated playback
什么是 CAF？
CAF is Apple's flexible audio container format. It supports any audio codec available in Core Audio and has no file size or duration limits.
格式详情
- 全称
- Core Audio Format
- 扩展名
- .caf
主要特点
- Apple native
- No size limit
- Multiple codecs
- Professional audio
MP4 与 CAF 对比
| 特性 | MP4 | CAF |
|---|---|---|
| 全称 | MPEG-4 Part 14 | Core Audio Format |
| 扩展名 | .mp4 | .caf |
| 最适合 | Universal compatibility | Apple native |
常见问题
The audio track is extracted from your MP4 file without re-encoding when possible, preserving the original quality. If format conversion is needed, we use optimized settings to minimize any loss.
Free users can process files up to 100MB. Pro users can extract audio from videos up to 2GB with priority processing.
Audio extraction is fast — most files complete in under 30 seconds. Our servers handle the processing, so it works on any device.
Yes. You can adjust bitrate, sample rate, and channels before conversion. Default settings preserve the original audio quality from your MP4 file.
Yes. Our converter runs entirely in your browser — no app needed. Upload your video, extract audio, and download on any device.