Re: AUConverter crackling
Re: AUConverter crackling
- Subject: Re: AUConverter crackling
- From: William Stewart <email@hidden>
- Date: Thu, 8 Jan 2004 18:13:50 -0800
Its an Audio Unit that is new in Panther. Its type is an 'aufc' (ie.
its a converter unit not an effect) so it won't show up in the normal
places (because it can pull for more / less samples than it is asked
for, etc...)
If you go into AUHosting in the Panther SDK there's some compile time
flags to have AUHosting use converter units instead of effects or
instruments - set it up for converters and you should see the varispeed
show up. We demo'd this at last year's WWDC too...
Bill
On 08/01/2004, at 4:31 PM, John Stiles wrote:
ADC and Google pull up nothing on AUVarispeed... what is it?
I am using a format converter node to do play back a 22KHz WAV at
21KHz, 23KHz, etc (so sounds can have slight variations)--is this a
better way?
On Jan 8, 2004, at 2:30 PM, Chris Rogers wrote:
Stefan,
The AudioConverter is not designed to change sample-rate on the fly
like
this. The AUVarispeed AudioUnit should be perfectly adapted to this
application by tweaking the "rate" parameter on the fly.
Chris Rogers
Core Audio
Apple Computer
Hi,
is there a way to change the sample rate of the input stream of the
AUConverter without crackling? I am trying to use the Converter to
compensate jitter/clock skew between computers by adapting the
stream format on the fly, but every time I change the sample rate I
get a crackling sound. Am I trying something impossible? Would it be
better to use AUVarispeed instead?
Thanks,
Stefan
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