Re: SetParameter at note scope?
Re: SetParameter at note scope?
- Subject: Re: SetParameter at note scope?
- From: Philippe Wicker <email@hidden>
- Date: Fri, 8 Aug 2003 18:36:09 +0200
On Friday, August 8, 2003, at 10:00 AM, Urs Heckmann wrote:
Am Freitag, 08.08.03, um 08:50 Uhr (Europe/Berlin) schrieb Philippe
Wicker:
Hello all,
Following the recent thread about AU MIDI events scheduled beyond
next rendering slice, I am asking why there isn't any SetParameter at
note scope. There is the group scope which is fine as long as you
want to deal with, well, a group of notes. There may be situation
where a user would like to modify parameters such as pitch, volume,
or whatever for a single note within a group (e.g. playing 2 notes
with the same value - but now with different ID - and modifying the
pitch of one of them). It's not opposed to the group mechanism,
simply complementary. Any comments?
I'd vote for an implementation of Polypressure. (I have an EPS16+,
remember?)
Well, maintaining the whole state (== all parameters) for each
instance of voice (== note played) is a nice feature of some expensive
hardware synths, but for efficient native implementations that share
cpu with other stuff, it's a bit like overkill. This is at least my
guess. With my currently 8 voices and 140 parameters, I'd have to
track more than 1000 values during processing (global automation tasks
& single voice changes). That would be more time consuming than
anything I do anyway.
Okay, Okay. Not a very good idea it seems :-) However, I didn't mean to
publish **all** parameters in this NoteScope. This question came to my
mind when I noticed that there are only 2 APIs that use the
NoteInstanceID: Start and Stop. As I was looking for a way to apply
(variable) pitches individually to notes in the same group I went to
the conclusion that this is impossible with the current specification
(or to be more accurate that I don't see how to do it which is probably
nearer to the truth :-) I found that SetParameter could be a way to do
it provided a NoteScope. Well, if SetParameter is not the right way,
then the question remains pending. If I have to change "on the fly"
volume, pitch, pan, ... of a single note within a group because my user
wants it, how do I do? Maybe I should answer "wait for the G6 or the
G7" :-))
Cheers,
;) Urs
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Philippe Wicker
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