Subject: Re: [linux-audio-dev] Additional LADSPA hints
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Thu Jan 16 2003 - 15:58:58 EET
On Thu, Jan 16, 2003 at 02:38:53PM +0200, janne halttunen wrote:
> On Wed, 15 Jan 2003 18:13:35 +0000
> Steve Harris <S.W.Harris_AT_ecs.soton.ac.uk> wrote:
>
> > AUDIO_RATE_CONTROL. Hints than an audio control should/could be controlled
> > by a high time res. slider or control data, but shouldn't be connected to
> > the next audio signal by default. I can't think of any simple examples off
> > hand, but combined with MOMENTARY it could be used for sample accurate
> > tempo tapping.
> >
> > My comments: I really like MOMENTARY and RANDOMISABLE. AUDIO_RATE_CONTROL
> > could be useful, but might be painful for hosts to implement. I dont have
> > any particular use for it right now.
>
> Not to mention that AUDIO_RATE_CONTROL would completely useless in JACK?
> You'd have a buffer-full of samples and apply frequency shift to them,
> which would change the length of that buffer, which you couldn't give to
> JACK unless you do some rebuffering.
No, I dont think so. An audio rate control is just one that has a value
per sample, instead of a value per block. Its usful for things like FM
frequency which can be changed very quickly. Hey, I just thought of a use
for it ;)
- Steve
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