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Re: Basic AudioQueue Service issue
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Re: Basic AudioQueue Service issue


  • Subject: Re: Basic AudioQueue Service issue
  • From: Craig Patchett <email@hidden>
  • Date: Fri, 24 Oct 2008 18:34:26 -0700

Sorry, I should have been more specific. I understand what I need to do (with respect to the release part of an ADSR envelope)...my question is how do I implement it in OpenAL?

Craig


On Oct 24, 2008, at 1:43 AM, Mark Brophy wrote:

You need a declick envelope:

"An amplitude envelope with a very short attack and decay time and a constant sustain envelope is often called a de-click envelope and is used to prevent clicks and pops associated with sudden changes in amplitudes."


http://www.csounds.com/ezine/summer1999/beginners/

Try ramping the first and last 500 samples of your sound, which is 20 milliseconds at 44.1 KHz.

Mark Brophy

--- On Thu, 10/23/08, Craig Patchett <email@hidden> wrote:
From: Craig Patchett <email@hidden>
Subject: Re: Basic AudioQueue Service issue
To: "coreaudio-api list" <email@hidden>
Date: Thursday, October 23, 2008, 11:18 PM

On Oct 23, 2008, at 7:48 PM, William Stewart wrote:

> I would:
> Use OpenAL directly to play sounds in your game
> Use AudioQueue to play back compressed audio backing track. OpenAL
> will take an uncompressed stereo file if you hvae that as a stereo
> input, but generally you'll have a Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden

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