Convert CAF to AIFF — Free Online Converter
Convert Core Audio Format (.caf) to Audio Interchange File Format (.aiff) online for free. Fast, secure audio conversion with no watermarks or registr...
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
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
Upload your .caf file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .aiff file when it's ready.
About CAF to AIFF Conversion
CAF and AIFF are both Apple audio containers, but they serve different purposes. CAF (Core Audio Format) is the modern, flexible container supporting any codec, unlimited file sizes, and professional metadata (markers, regions, channel layouts). AIFF (Audio Interchange File Format) is the classic 1988 uncompressed PCM container with simpler structure and broader compatibility.
Converting CAF to AIFF extracts the audio, decodes to PCM if necessary, and stores it in the widely compatible AIFF container. This is needed when sharing macOS professional recordings with systems or collaborators that support AIFF but not CAF.
Why Convert CAF to AIFF?
AIFF is supported by virtually every audio application on macOS and many on Windows, while CAF support is limited to Core Audio-aware applications. When sharing recordings with collaborators using Pro Tools, Audacity, or non-Apple DAWs, AIFF is the safer Apple-native format.
AIFF also has better compatibility with CD burning software, hardware samplers, and broadcast systems that expect uncompressed Apple-format audio. Converting CAF to AIFF makes professional macOS recordings accessible to a wider range of audio tools.
Common Use Cases
- Sharing Logic Pro recordings with collaborators using Pro Tools or Audacity
- Preparing CAF audio for CD mastering and burning applications
- Converting CAF files for hardware samplers that accept AIFF but not CAF
- Delivering macOS recordings to broadcast systems expecting AIFF format
- Creating universally compatible Apple audio from professional CAF sessions
How It Works
FFmpeg reads the CAF container, decodes the enclosed audio to PCM (if not already PCM), and writes to an AIFF container with big-endian byte order. If the CAF contains uncompressed PCM, the conversion is essentially a container swap with byte-order adjustment. If the CAF contains ALAC, the decode is lossless. CAF-specific metadata (markers, regions) does not transfer to AIFF's simpler structure.
Quality & Performance
For CAF files containing PCM or ALAC, the conversion is lossless — the AIFF output preserves every sample exactly. For CAF files containing lossy codecs (AAC, MP3), the AIFF captures the decoded audio at its current quality level. No additional quality loss occurs during the container conversion.
Device Compatibility
| Device | CAF | AIFF |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use this conversion when sharing with collaborators who need Apple-format audio but whose tools don't support CAF
- 2Export CAF markers and regions separately before converting — AIFF cannot store this production metadata
- 3For cross-platform compatibility beyond Apple, WAV may be more universally accepted than AIFF
- 4Verify bit depth preservation (16-bit vs 24-bit) after conversion
- 5Batch convert CAF session files when preparing deliverables for external studios
Related Conversions
CAF to AIFF converts modern macOS audio to the classic Apple uncompressed format with broad compatibility. Quality is preserved losslessly from PCM and ALAC sources.