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Re: Quick question on configuring an AU for a certain channel config
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Re: Quick question on configuring an AU for a certain channel config


  • Subject: Re: Quick question on configuring an AU for a certain channel config
  • From: William Stewart <email@hidden>
  • Date: Tue, 4 Dec 2007 15:13:22 -0800

the channel config property. You publish the configurations you can support (I'm not sure what are typos in your example below) - but:
On Dec 4, 2007, at 7:36 AM, tahome izwah wrote:


Hi all,

I have a quick question and couldn't find the answer in any of the AU
documentation... I'm sure it is covered somewhere...

In my AU I need to set the supported number of input channels vs. the
number of output channels. For example, I'd like to have 4 input
channels and 2 output channels, or 2 input channels and 2 output
channels, or 2 input channels and 2 output channels.

The data from all the channels need to be present in the process
function at the same time (either in separate buffers or interlaced).

What is the best (read easiest) way to tell the AU host that my AU
accepts a 4-2, 2-1 and 2-2 channel config?

{ {4, 2}, {2, 1}, {2, 2}}

This doesn't seem to be
covered in the documentation, and on 10.5 the ReadMe file at
/Developer/Examples/CoreAudio/ReadMe.rtf refers to a directory
/Developer/Examples/CoreAudio/Documentation that doesn't exist... :-(

Thanks
--th
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  • Follow-Ups:
    • Re: Quick question on configuring an AU for a certain channel config
      • From: "tahome izwah" <email@hidden>
    • OT: my macbook suddenly has a digital out and no internal speakers
      • From: "Kevin Dixon" <email@hidden>
References: 
 >Quick question on configuring an AU for a certain channel config (From: "tahome izwah" <email@hidden>)

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