Re: low-pass filter on the iphone (Daniel Birns)
Re: low-pass filter on the iphone (Daniel Birns)
- Subject: Re: low-pass filter on the iphone (Daniel Birns)
- From: Daniel Birns <email@hidden>
- Date: Sun, 7 Dec 2008 12:45:01 -0800
Huh? I'm accessing the data fine in the AudioQueue playbackCallback AudioQueueNewOutput ( &audioFormat, playbackCallback, self, CFRunLoopGetCurrent (), kCFRunLoopCommonModes, 0, // run loop flags &queueObject ); and isn't the point of the aurioTouch sample showing how to create and use an AudioUnit? On the other hand, it appears that none of these use compressed audio formats. Is that what you're referring to?
--Daniel
You cannot create your own AudioUnits for the iPhone and you can't use an AudioConverter for decoding
aac, mp3 or alac files on the iPhone.
As far as I know the only way to access PCM data on the iPhone is by using AudioQueueOfflineRender()
but it's still a secret how to get that to work, it's not even clear if it currently works?
Rolf
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