Re: Playing multiple sounds
Re: Playing multiple sounds
- Subject: Re: Playing multiple sounds
- From: "Andreas Falkenhahn" <email@hidden>
- Date: Sat, 25 Aug 2007 00:17:11 +0200
On 24.08.2007 at 12:27 William Stewart wrote:
>On 24/08/2007, at 7:23 AM, Andreas Falkenhahn wrote:
>
>> Some further questions:
>>
>> 1. According to Doug Wyatt from the Core Audio team at Apple
>> kAudioUnitProperty_SetInputCallback is (and I quote) " *very*
>> deprecated; only use
>> I can imagine is if you're only using the Apple AU's and must
>> support 10.1."
>>
>> cf. source: http://lists.apple.com/archives/coreaudio-api/2004/Jul/
>> msg00091.html
>>
>> Instead, I should use kAudioUnitProperty_SetRenderCallback. But I
>> can't use it
>> on my mixer! If I do something like
>>
>> err = AudioUnitSetProperty(mixerAudioUnit,
>> kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, <bus>,
>> &callback, sizeof(AURenderCallback);
>>
>> I get a kAudioUnitErr_InvalidProperty error. So what is it with
>> SetInputCallback
>> now? Should I use it or not? Is there a better way?
>
>You must be opening the mixer as a version 1 AU. The component IDs
>for the stereo mixer are:
>type - aumx
>sub - smxr
>manu - appl
>
>any AU of type 'aunt' is deprecated and should not be used.
Ok, thanks. I've now successfully installed a render callback on the mixer.
But now there's a new problem: When the render proc is called, ioData->mNumberBuffers
is 2 now, which makes AudioConverterFillComplexBuffer() exit with a paramErr
because it obviously expects only one buffer.
What am I doing wrong here?
Tks
Andreas
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