Apple

From what I've seen of your code thus far, I think you want
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian |
kAudioFormatFlagIsPacked.

That's the canonical format; that's what's now set. Just to be sure I set that explicitly and sound is still wrong. Here's the ASBDs again for reference:

// Set desired audio output format

memset(&_outputASBD, 0, sizeof(_outputASBD));

_outputASBD.mSampleRate = 44100.0;

_outputASBD.mFormatID = kAudioFormatLinearPCM;

_outputASBD.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked;

_outputASBD.mBytesPerPacket = 2 * 2; // 2 channels, 2 bytes per

_outputASBD.mBytesPerFrame = 2 * 2; // 2 channels, 2 bytes per

_outputASBD.mFramesPerPacket = 1;

_outputASBD.mChannelsPerFrame = 2;

_outputASBD.mBitsPerChannel = 16;

// Set recording format

memset(&_fileASBD, 0, sizeof(_fileASBD));

_fileASBD.mSampleRate = 44100.00;

_fileASBD.mFormatID = kAudioFormatLinearPCM;

_fileASBD.mFormatFlags = kAudioFormatFlagsCanonical;

_fileASBD.mBytesPerPacket = 2 * 2;

_fileASBD.mBytesPerFrame = 2 * 2;

_fileASBD.mFramesPerPacket = 1;

_fileASBD.mChannelsPerFrame = 2;

_fileASBD.mBitsPerChannel = 16;

Thanks

On 6 Dec 2012, at 11:00, Joel Reymont wrote:

On Thu, Dec 6, 2012 at 3:50 PM, Tim Kemp <email@hidden> wrote:

I did so: changed my RemoteIO ASBD to use kAudioUnitFlagsCanonical.

What are the flags in kAudioUnitFlagsCanonical?

Did you make sure the flags in your file's ASBD are
kAudioUnitFlagsCanonical also?

From what I've seen of your code thus far, I think you want
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian |
kAudioFormatFlagIsPacked.

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References:
	>Re: How to capture audio generated by a render callback, iOS (From: Tim Kemp <email@hidden>)
	>Re: How to capture audio generated by a render callback, iOS (From: Joel Reymont <email@hidden>)