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Grabbing input from CoreAudio driver

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Grabbing input from CoreAudio driver

Subject: Grabbing input from CoreAudio driver
From: Tommy Schell <email@hidden>
Date: Wed, 27 Apr 2005 08:41:44 -0600

Hi,

I'm developing a CoreAudio (kernel space) driver. When input begins, does the HAL, via convertInputSamples(), ignore the initial audio data if it is all zero's?

Also I notice that it appears the HAL doesn't typically start exactly on the 1st sample in my input buffer, but somewhere around the 50th sample, when input begins. So I guess there is an assumption that initial data will not be valid?

(I have video coming in also through Quicktime and want to make sure audio/video are in sync.)

Thanks,
Tommy Schell

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