[PD] Polyphonic voice allocation and sustain pedal

[alfonso santimone]

Thanks Christof!
I surely hope that your proposal will be heard. Those would be essential
additions to vanilla's [poly] for polyphonic instrument building.
As for the [bag] object i tried but in the way i built the patch it only
works if the sustain pedal is pressed before note on arrives. I have to
find a way to make it work the same way when is pressed after a note on.
The same note retriggering is  another essential feature.


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On Sat, Jan 2, 2021 at 6:29 PM Christof Ressi <info at christofressi.com>
wrote:

> Not a direct answer to your question, but I've proposed a few additional
> features for the [poly] object, including a [sustain( message:
> https://github.com/pure-data/pure-data/pull/661
>
> For implementing a sustain pedal in Pd vanilla, the [bag] object will
> probably help. Unfortunately, I don't have time at the moment to come up
> with a full solution.
>
> Christof
> On 02.01.2021 18:07, alfonso santimone wrote:
>
> Hi all,
> i'm trying to build a polyphonic voice allocation patch that include
> sustain pedal (MIDI CC(64) ).
> Is there any abstraction that i can look into?
> My problems are :
>
> 1. How to deal with [poly] when the same note number is received (i.e,
> three C4 in a row)
> [poly] always assign a new voice slot to the incoming notes.
> I'm trying to make it assign the same voice slot when the same note number
> is received consecutively. I guess that i should mess with some arrays
> keeping track of note numbers and voice slots.
>
> 2. How to deal with sustain pedal.
> In the "real" world as with keyboard instruments like piano, rhodes etc.
> the sustain pedal is used in different ways but the most common one is to
> press the pedal immediately after a chord or note is played and then
> release it when a new chord is played.
> It can be used in more "effect" oriented ways.
> Is there any patch or abstraction that i can look into? I guess i should
> use a combination of [stripnote] and arrays/table/list to keep track of the
> notes on and off events.
> How this can be integrated with a polyphonic voice management with
> stealing algorithm etc. etc.?
>
> thanks and all the best
> www.elgallorojorecords.bandcamp.com/
> <https://elgallorojorecords.bandcamp.com/>
> soundcloud.com/alfonsosantimone
> www.facebook.com/alfonsosantimone
>
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