Convert CAF to FLAC — Free Online Converter
Convert Core Audio Format (.caf) to Free Lossless Audio Codec (.flac) online for free. Fast, secure audio conversion with no watermarks or registration.
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 .flac file when it's ready.
关于CAF转FLAC
CAF (Core Audio Format) is Apple's professional container with unlimited codec support, no file size cap, and rich production metadata. FLAC (Free Lossless Audio Codec) is the universal open-source lossless standard, supported on Android, Linux, Windows 10+, and every major music platform.
Converting CAF to FLAC extracts the audio, decodes to PCM, and encodes losslessly. From PCM or ALAC in CAF, this is a perfectly lossless operation. FLAC provides cross-platform lossless compatibility that CAF lacks.
为什么要将CAF转换为FLAC？
CAF is macOS-specific with virtually no support outside Apple's Core Audio framework. FLAC is supported everywhere — Android, Linux, Windows, Plex, Roon, Jellyfin, Bandcamp, Tidal, and Qobuz. Converting CAF to FLAC makes professional macOS recordings accessible on all platforms.
FLAC's Vorbis comment metadata system supports unlimited tagging, ReplayGain, embedded album art, and cue sheets. For distributing professional recordings outside the Apple ecosystem, FLAC is the universal lossless choice.
常见使用场景
- Making Logic Pro recordings available on Android and Windows platforms
- Preparing CAF masters for Bandcamp, Tidal, or other lossless distribution
- Converting macOS production audio for cross-platform music server libraries
- Creating universally compatible lossless archives from professional CAF sessions
- Migrating macOS audio to the open-source FLAC ecosystem
工作原理
FFmpeg reads the CAF container, decodes the enclosed audio to PCM, and encodes using the FLAC encoder with configurable compression levels 0-8. From PCM or ALAC in CAF, the entire pipeline is lossless. FLAC stores an MD5 checksum for integrity verification. The output preserves sample rate, bit depth, and channel layout. CAF metadata does not transfer directly but basic information can be added as Vorbis comments.
质量与性能
From PCM or ALAC in CAF, the conversion is perfectly lossless — every sample is preserved. From lossy codecs in CAF, FLAC preserves the full decoded quality. FLAC compression levels affect only speed and size, never quality. Files are typically 50-60% of raw PCM size.
设备兼容性
| Device | CAF | FLAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No | No |
各平台推荐设置
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
获得最佳效果的技巧
- 1Verify lossless integrity from PCM sources by comparing decoded MD5 checksums
- 2Use compression level 5 for the best speed/size balance
- 3Add Vorbis comments (metadata) during conversion since CAF metadata does not transfer automatically
- 4Embed album art in FLAC for proper display across music players
- 5Batch convert CAF sessions when preparing cross-platform distribution from macOS production
相关转换
CAF to FLAC brings macOS professional audio to the universal lossless standard. Quality is perfectly preserved from uncompressed and lossless CAF sources.
CAF 与 FLAC 对比
| 特性 | CAF | FLAC |
|---|---|---|
| 全称 | Core Audio Format | Free Lossless Audio Codec |
| 扩展名 | .caf | .flac |
| 最适合 | Apple native | Lossless compression |