
Core Audio Format (caf)
The Core Audio Format is a container for storing audio, developed by Apple Inc.. Core Audio Format is designed to overcome limitations of older digital audio formats, including AIFF and WAV. Just like the QuickTime .mov container, a .caf container can contain many different audio formats, metadata tracks, and much more data. Not limited to a 4 GB file size like older digital audio formats, a single .caf file can theoretically save hundreds of years of recorded audio due to its use of 64-bit file offsets. Soundtrack Pro and Logic Studio use the .caf format extensively for their loop and sound effects library, particularly for surround-sound audio compressed with the Apple Lossless codec.
Pro Audio Converter offers the folling audio formats for storage in a CAF container:
- A-Law
- AAC
- Apple Lossless
- iLBC
- IMA 4:1
- Linear PCM
- MPEG 4 High Efficiency AAC
- MPEG 4 Low Delay AAC
- Qualcomm Purevoice™
- μ-law