Core Audio Format
Filename extension |
.caf |
---|---|
Internet media type |
audio/x-caf |
Type code | caff |
Uniform Type Identifier (UTI) | com.apple.coreaudio-format |
Developed by | Apple Inc. |
Initial release | 2005 |
Type of format | media container |
Container for | digital audio |
Website | Apple Core Audio Format Specification 1.0 |
The Core Audio Format (.caf) is a container for storing audio, developed by Apple Inc. It is compatible with Mac OS X 10.4 and higher; Mac OS X 10.3 needs QuickTime 7 to be installed.[1]
Core Audio Format (.caf) 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. Like the RF64, it is not limited to a 4 GB file size and a single .caf
file can theoretically save hundreds of years of recorded audio due to its use of 64-bit file offsets.[2]
GarageBand, Soundtrack Pro, and Logic Studio use the .caf
format for their loop and sound effects library, particularly for surround-sound audio compressed with the Apple Lossless (ALAC) codec. It is also what is used to send Audio Messages over iMessage on iOS and Mac OS.
References
- ^ "How to Convert CAF to MP3". TechiSky. August 25, 2012. Retrieved 2012-11-27.
- ^ "Apple Core Audio Format Specification 1.0/ CAF File Overview". Mac Developer Library. Apple Inc. 2011 [2005]. Retrieved 2012-11-27.
External links