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understanding AudioTimeStamp
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understanding AudioTimeStamp


  • Subject: understanding AudioTimeStamp
  • From: Tusi Chowdhury <email@hidden>
  • Date: Mon, 06 Jan 2014 14:04:05 -0500

Hi,

I am confused about how to extract current audio data timestamp from audioTimeStamp struct.

I want the current audio data buffer’s data timestamps handed to me from core audio input unit through callback function.

the audioTimeStamp struct include following:

  mHostTime
                        The host machine's time base, mach_absolute_time.

what is the “base”?

How do I use this to get the audio sample timestamp in mach_absolute_time?


Thanks for the help.

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