CAF (Apple Core Audio File Format) with IMA4 decompression is not supported by SOX. Please add this feature. (Very used for iPhone platform).
Format container is defined in the following link for someone interested in implementing.
http://developer.apple.com/DOCUMENTATION/MusicAudio/Reference/CAFSpec/CAF_spec/chapter_3_section_1.html#//apple_ref/doc/uid/TP40001862-CH210-DontLinkElementID_63
Should be able to use internal routines for PCM, IMA4, alaw, and ulaw once the container can be parsed.
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Format container is defined in the following link for someone interested in implementing.
http://developer.apple.com/DOCUMENTATION/MusicAudio/Reference/CAFSpec/CAF_spec/chapter_3_section_1.html#//apple_ref/doc/uid/TP40001862-CH210-DontLinkElementID_63
Should be able to use internal routines for PCM, IMA4, alaw, and ulaw once the container can be parsed.