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audiograph 5ms fade
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audiograph 5ms fade


  • Subject: audiograph 5ms fade
  • From: Robert Carroll <email@hidden>
  • Date: Tue, 07 Jan 2014 09:20:46 -0500

Is there a way to access the default render callback the the fileplayerAU's use? I am able to get the CurrentPlayTime from the fileplayers that feed into the mixerAU, but if I specify my own callback, I think it breaks the node connection from the fileplayer to the mixer input. This is just based on reading through other web posts with similar issues.

I could set up a ring buffer somewhere in the AUGraph, and then poll its callback for the timestamps.

thanks,

Robert Carroll
RSM Records
Toronto
http://www.rsmrecords.com



On Jan 6, 2014, at 3:00 PM, email@hidden wrote:

Message: 2
Date: Sun, 05 Jan 2014 17:56:51 -0500
From: Paul Davis <email@hidden>
To: Robert Carroll <email@hidden>
Cc: CoreAudio API <email@hidden>
Subject: Re: audiograph 5ms fade
Message-ID:
<email@hidden">email@hidden>
Content-Type: text/plain; charset="iso-8859-1"

On Sun, Jan 5, 2014 at 5:11 PM, Robert Carroll <email@hidden> wrote:


I wrote a crude version based on an NSTimer scaling the mixer's output
volume parameter, but the timing is not reliable.


all audio time should be measured using the same sample clock that drives
the processing.  just count samples in the relevant render callbacks, and
terminate when done.

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