Answer by user885074 for How to write array of float values to audio file in Core Audio?

Yes, I'd put them in an AudioBuffer and that into an AudioBufferList. After that you can write them to a file using ExtAudioFileWrite() on a ExtAudioFileRef that was created using ExtAudioFileCreateNew().

Audio File documentation:http://developer.apple.com/library/mac/#documentation/MusicAudio/Reference/ExtendedAudioFileServicesReference/Reference/reference.html%23//apple_ref/doc/uid/TP40007912