Re: AU2 - beatAndTempoProc
Re: AU2 - beatAndTempoProc
- Subject: Re: AU2 - beatAndTempoProc
- From: "Paul Kellett" <email@hidden>
- Date: Wed, 18 Sep 2002 10:06:18 +0100
Marc Poirier <email@hidden> wrote:
>
>
Hi. I'm glad to see that there is a means for getting tempo and beat
>
information from hosts in Audio Unit 2.0 However I fear that the
>
current implementation is pretty inadequate.
>
>
P.S. - I hope you don't mind me picking apart this aspect of the
>
API.
I'm going to assume nobody minds us picking, and add my $0.02...
To make things easy for us VST people, it would be nice if "beat"
was defined as "quarternotes".
Some plug-ins, like delays, will only want to know the tempo.
But if a plug-in wants to know the beat, it will probably also
want the time signature and a reference point (the position of the
start of the current bar or the start of the first bar with the
current time signature, measured in beats).
How *I* would like to get this information is to be able to ask
for the current tempo and song position (in beats), but for my
plug-in to be told whenever there is a change in tempo, time
signature or song position. Ideally, these changes should be
sent with time offsets into the current audio buffer, so maybe
the AudioUnitScheduleParameters mechanism could be used.
Paul.
_____________________________
m a x i m | digital audio
http://mda-vst.com
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