Re: kAudioUnitProperty_PresentationLatency supported in LogicPro 7.2 and/or 8?
Re: kAudioUnitProperty_PresentationLatency supported in LogicPro 7.2 and/or 8?
- Subject: Re: kAudioUnitProperty_PresentationLatency supported in LogicPro 7.2 and/or 8?
- From: William Stewart <email@hidden>
- Date: Tue, 13 Nov 2007 11:02:50 -0800
In lieu of the property being implemented, I'd suggest that you
provide a field for the user to set this (and start off with a
suggested value). This would be good in any case, as there are other
factors that might contribute to this number (when provided) being a
reasonable estimate, but not 100% reliable in all cases.
Bill
On Nov 12, 2007, at 6:32 PM, I. K. wrote:
The project I am working on requires acurate host time stamps of
events. These will be made OSC bundles and sent thru udp to control
OSC aware applications; SuperCollider3 among them.
So far, I have thought of using a digital audio track to send a one
sample impulse on transport play. The OSC server application
calculates a host time offset from the time it receives this impulse.
I dont like that. its hacky.
It would be great if the OSC Bundle was built with the correct timing
information from the start - in the AU.
any sugestions are welcome.
Thanks for your help Bill.
On 11/12/07, William Stewart <email@hidden> wrote:
This is on our to do list for AULab, but not yet done. I don't know
of
Logic's plans in this area. You are the first to really ask for this,
so perhaps there is enough reason now to look at supporting this
property.
Bill
On Nov 12, 2007, at 5:37 PM, I. K. wrote:
I searched the archives and found only a couple of references
regards
this without much more info than the documentation provided in the
header.
I have tested on several hosts and none seems to have it implemented
including AULab.
Perhaps AudioUnitProperties.h misses to mention its only
applicable to
output AudioUnits?
As a workaround, is there a way for an AU to get a reference to the
AUGraph it is connected to?
This way I could iterate thru the graph collecting latencies and
calculate a persentation latency for mine - based on buffersize, out
device safety buffer size, latency etc...
is there any other way?
tia,
I.
On 11/8/07, I. K. <email@hidden> wrote:
Hello all,
Does anyone know if kAudioUnitProperty_PresentationLatency is
supported in Logic Pro 7.2 and/or Logic Pro 8?
I would appreciate any hints if this property is not supported.
I am coding an AU Instrument so it is only the output presentation
latency I am interested in.
tia,
I.
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