Safe and efficient recording - applications writing aiff and wav files must either update the data header’s size field at the end of recording-which can result in an unusable file if recording is interrupted before the header is finalized-or they must update the size field after recording each packet of data, which is inefficient.A standard caf file can hold audio data with a playback duration of hundreds of years. Unrestricted file size - whereas aiff, aiff-c, and wav files are limited in size to 4 gigabytes, which might represent as little as 15 minutes of audio, caf files use 64-bit file offsets, eliminating practical limits.The caf files have several advantages over other standard audio file formats: It is fully supported by Core Audio APIs on Mac OS X v10.4 and later and on Mac OS X v10.3 with QuickTime 7 or later.ĬAF provides high performance and flexibility, and is scalable to future ultra-high resolution audio recording, editing, and playback. The caf file extension is related to Apple QuickTime and used for Apple Core Audio format.Īpple's Core Audio Format is a flexible, state-of-the-art file format for storing and manipulating digital audio data.
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