Apple

On Mar 1, 2005, at 5:43 PM, Rob Frohne wrote:

Hi,

I am having a problem playing files with 22 kHz sample rate using this code here. I get this

(OSStatus) 560226676

for err if the sample rate is not 44 kHz. I'm not sure how to get Xcode to tell me what that error is. Somehow the command clicking for the CoreAudio stuff isn't working in my project. (For example, I can't select AudioDeviceSetProperty and command click it and find the definition, etc.)

audio_data.format.mSampleRate = audio_data.sfinfo.samplerate ;

audio_data.format.mChannelsPerFrame = audio_data.sfinfo.channels ;

rate = (int *) &(audio_data.format.mSampleRate);

channels = (int *) &(audio_data.format.mChannelsPerFrame);

//Set the sample rate.

if ((err = AudioDeviceSetProperty (audio_data.device, NULL, 0, false, kAudioDevicePropertyStreamFormat,

sizeof (AudioStreamBasicDescription), &(audio_data.format))) != noErr)

{ printf ("AudioDeviceSetProperty (kAudioDevicePropertyStreamFormat) failed.\n") ;

return -1;

} ;

Any tips or hints would be very welcome!

References:
	>AudioDeviceSetProperty and setting kAudioDevicePropertyStreamFormat (From: Rob Frohne <email@hidden>)