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Re: AudioQueueNewOutput error

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Re: AudioQueueNewOutput error

Subject: Re: AudioQueueNewOutput error
From: Brian Whitman <email@hidden>
Date: Wed, 30 Apr 2008 10:51:40 -0400

On Apr 30, 2008, at 8:10 AM, Roland Silver wrote:

The fields of ASBDesc are set by initASBDesc():

ASBDesc.mSampleRate = consts.SampleRate; //consts.SampleRate = 44100.0

	ASBDesc.mFormatID = kAudioFormatLinearPCM;

	ASBDesc.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;

	ASBDesc.mBytesPerFrame =

consts.channelsPerFrame * consts.valuesPerChannel * consts.bytesPerValue;

		//mBytesPerFrame = 16

	ASBDesc.mFramesPerPacket = consts.framesPerPacket; //1

	ASBDesc.mChannelsPerFrame = consts.channelsPerFrame; //2

	ASBDesc.mBitsPerChannel =

		consts.valuesPerChannel * consts.bytesPerValue * consts.bitsPerByte;

		//mBitsPerChannel = 64

You're missing mBytesPerPacket (which == mBytesPerFrame for PCM) And I really don't think you mean to have 64 bits per channel. For a Float type that should be 32 (and then bytesPerFrame should be modified accordingly.) What is consts.valuesPerChannel mean?


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