Re: using AUMatrixMixer & format conversions
Re: using AUMatrixMixer & format conversions
- Subject: Re: using AUMatrixMixer & format conversions
- From: Brian Willoughby <email@hidden>
- Date: Thu, 23 Oct 2008 00:40:18 -0700
What about sample rate conversion, Bill? I told John off-list that I
thought the mixer would not automatically handle SRC, but that I could
not remember for sure. I believe he would appreciate a confirmation
that sample rate as well as bus and channel conversions will be
handled transparently.
Brian Willoughby
Sound Consulting
On Oct 22, 2008, at 18:01, William Stewart wrote:
yep - the matrix mixer can be configured to any number of buses with
any number of channels
On Oct 21, 2008, at 11:19 PM, John Clayton wrote:
I'm wondering if an AUMatrixMixer has the capability to accept
different inputs on its input busses. E.g. can I put 5 channels of
44.1k into Bus 0 and 2 (stereo) channels of 8k into Bus 1 and
expect things to work - or am I asking for trouble? Another way
of asking this I suppose, is; will it perform the format and rate
conversion tasks for me - or do I have to make sure all the input
*and* output busses are set to the same format/channel and sample
rate?
Reason:
I have a situation where I'm going to be feeding audio from QT
movie files into coreaudio units. I'm extracting audio via the
MoveAudioExtraction API, which for any given movie creates a
summary mix of all of the audio tracks contained in the movie, I
then need to push these into a ducking component (that I'm going to
write).
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