Is there an easy way to control the playback speed / tempo of an audio file being played using Audio Queue Services? For example, if a game plays in background music, I want the BGM speed to increase over time, but without changing the pitch. thanks!
There is no trivial way to do this that I know of. On a Mac, you would presumably use Audio Units, but I think the support for them is limited to the iPhone SDK.
AudioQueue, AudioFileReadPackets() AudioQueueEnqueueBuffer(), , .
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