Re: Channels and frames
Re: Channels and frames
- Subject: Re: Channels and frames
- From: William Stewart <email@hidden>
- Date: Thu, 3 Nov 2005 17:29:42 -0800
On 03/11/2005, at 3:00 PM, B.J. Buchalter wrote:
Bill,
Perhaps I have not looked at this closely enough, but I think I am
confused
in the same way that Michael is:
To be honest, this isn't a matter of confusion. The problem is that
you can't express what you want currently.; that is, you can't
restrict capabilities once you start mixing different numbers of
input and output channels.
Take the simple case of a plug in that has the following capabilities:
Mono Input, Mono Sidechain Input, Mono Output
Stereo Input, Mono Sidechain Input, Stereo Output
How does that get encoded as far as AU is concerned in terms of
elements and
kAudioUnitProperty_SupportedNumChannels?
This has been discussed already in a previous email:
{ {1, 1} { 2, 2} }
Further, I think Michael's case is as follows:
Mono Input, Mono Sidechain Input, Mono Output
Stereo Input, Stereo Sidechain Input, Stereo Output
(ignoring Mono->Stereo or Stereo->Mono)
No - that is not what he said BJ. The whole problem here is that he
wants to do mono inputs and stereo output, but wants to explicitly
dis-allow a mixture of mono and stereo inputs for a stereo output.
Bill
That is, the plug-in wants to see a sidechain input that is the
same number
of channels as the main input. Does AU have a way to encode that
capability,
or is that not possible, and does this imply that that the AU must
be able
to support either stereo or mono sidechain -- regardless of the
configuration of the main input -- if it supports them at all?
Thanks,
B.J. Buchalter
Metric Halo
5 Donovan Drive
Hopewell Junction, NY 12533 USA
tel +1 845 223-6112
fax +1 603 250-2451
--
mailto:email@hidden
tel: +1 408 974 4056
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