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Re: 192000 Hz won't render

Subject: Re: 192000 Hz won't render
From: Christopher Ashworth <email@hidden>
Date: Thu, 29 Mar 2007 21:39:37 -0400
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On Mar 29, 2007, at 3:41 PM, Jeff Moore wrote:

One thing you might run into though is that to maintain an ~11.5ms IO cycle, the buffer size would increase from the default of 512 frames to 2048 frames.

Dumb question just to make sure I'm following you: Which buffer are you referring to here?

If this is the case, you probably need to update each AU's kAudioUnitProperty_MaximumFramesPerSlice property to be large enough.

Are there guidelines for how to make sure we're setting the kAudioUnitProperty_MaximumFramesPerSlice to ensure that it is the right size for a particular I/O cycle of a particular device? The way you phrase it above makes me think there is a straightforward calculation that will give the right answer, but if so I'm ignorant of it. (This is probably related to my ignorance of where you got the 11.5ms number for the I/O cycle.)

Cheers,
Christopher
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References:
	>192000 Hz won't render (From: Evan Olcott <email@hidden>)
	>Re: 192000 Hz won't render (From: Jeff Moore <email@hidden>)

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