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AUNewTimePitch + AudioQueueProcessingTap demos from CocoaConf Portland session
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AUNewTimePitch + AudioQueueProcessingTap demos from CocoaConf Portland session


  • Subject: AUNewTimePitch + AudioQueueProcessingTap demos from CocoaConf Portland session
  • From: Chris Adamson <email@hidden>
  • Date: Tue, 30 Oct 2012 15:03:02 -0400

Just posted a blog with links to my slides and code from a "Core Audio on iOS 6" talk at CocoaConf Portland last weekend.

The three sample code projects in the zip include two basic uses of AUNewTimePitch (rate-shifting file playback and pitch-shifting mic input), plus the sample I posted the video of over the weekend where we pitch-shift a web-radio app, by using AudioQueueProcessingTap to call back with decoded samples, and run them through a little AUGraph that wraps AUNewTimePitch with two AUConverter units (to go from int to float for the effect's sake, then back to int).

http://www.subfurther.com/blog/2012/10/30/cocoaconf-portland-12-and-the-audioqueueprocessingtap/

Hope this helps. Code is absolutely wildly totally not production quality, your milage may vary, don't sue me, if streams last more than four hours consult a physician, etc.

--Chris


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