[gmpi] Re: 3.15 MIDI
- From: "gogins@xxxxxxxxxxxx" <gogins@xxxxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Mon, 14 Jun 2004 07:11:04 -0400
I hope this is not the only use case we are considering. Suppose I have a
"sequencer plugin" where I have manual edits for per-voice controllers, and
my sequencer plugins is controlling synthesizer plugins in the same graph.
Or that I have a scriptable host that enables me to do the same thing.
Original Message:
-----------------
From: Chris Grigg gmpi-public@xxxxxxxxxxxxxx
Date: Sun, 13 Jun 2004 23:17:14 -0700
To: gmpi@xxxxxxxxxxxxx
Subject: [gmpi] Re: 3.15 MIDI
Could someone kindly illustrate exactly how this per-voice/per-note
parameter bundling and voice-id concept would work? I mean, in a
basic music production studio situation, with a physical MIDI
velocity-sensitive keyboard controller driving music synthesizers in
a GMPI graph.
-- Chris G.
>On Mon, Jun 14, 2004 at 05:15:26PM +1200, Jeff McClintock wrote:
>> Someone has to suggest the most radical option....
>>
>> NO MIDI, we're done.
>
>I'm right there with you.
>
>> What am I saying?, Convert MIDI controlers to GMPI parameters (at the
graph
>> 'edge').
>>
>> e.g. MIDI Pitch Bends get converted to GMPI parameter-change events, if
you
>> have a parameter called "Channel[0]/Pitch-Bend" (or whatever) it
receives
>> the pitch bends.
>
>Further: Each parameter might indicate a default CC #. The host can map
>incoming MIDI to a plugin using the default CC mapping. Or you can have
>the host remap CCs, if you prefer. The actual CC data gets no further
>than the host. Th ehost turns it into GMPI.
>
>> Note-ons?, they're just 3 parameters 'bundled': Note-on, Pitch,
Velocity,
>> addressed to a specific voice.
>
>Why those three? What if I want per-note pan, filter cuoff and PWM?
>Let's not hardcode pitch and velocity as anything special. They are just
>more parameters.
>
>A note-on is an arbitrary bundle of parameters with a special note-on
>meaning on-top.
>
>Back to XAP for a minute :). We theorized that a plugin might expose a
>bunch of per-channel pramaters, like filter cutoff, etc. But a plugin
>might also expose a bunch of per-voice parameters. Those parameters each
>apply to each voice. So for example:
>
>A synth with no velocity sensitivity would have a per-voice pitch control.
>
>A sytnth which is velocity sensitive and had per-voice filter cutoff would
>have per-voice pitch, velocity, and cutoff controls.
>
>
>Plugins get to decide exactly how many parameters they expose per-voice,
>and how to treat them. Some parameters only make sense at the beginning
>of a note (velocity for example). Some parameters make sense continuously
>(pitch or volume for example).
>
>With a voice-id, the host/user can manipulate each voice independantly.
>
>flame-retardent pants firmly affixed
>:)
----------------------------------------------------------------------
Generalized Music Plugin Interface (GMPI) public discussion list
Participation in this list is contingent upon your abiding by the
following rules: Please stay on topic. You are responsible for your own
words. Please respect your fellow subscribers. Please do not
redistribute anyone else's words without their permission.
Archive: //www.freelists.org/archives/gmpi
Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe
--------------------------------------------------------------------
mail2web - Check your email from the web at
http://mail2web.com/ .
----------------------------------------------------------------------
Generalized Music Plugin Interface (GMPI) public discussion list
Participation in this list is contingent upon your abiding by the
following rules: Please stay on topic. You are responsible for your own
words. Please respect your fellow subscribers. Please do not
redistribute anyone else's words without their permission.
Archive: //www.freelists.org/archives/gmpi
Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe
Other related posts:
