[PD] How to avoid "choppy" midi outputs sounds using multi-user DIY music controllers ? (newbie question)

[Robb Mitchell]

Thanks again - it turns out that it was a synthesiser problem. 

In case anyone was wondering,  I went back to basics and attempted to play 
multiple notes through a simple patch. The synth (FM8) appears very much 
polyphony. However I noticed  by chance, the "overlapping" choppy problem with 
chords that do not start synchronously (if you know what I mean) occurred with 
only some of the preprogrammed sounds. So switching to a different sound on the 
synth solves the problem.


----- Original Message ----
From: Lorenzo Sutton <lsutton at libero.it>
To: pd-list at iem.at
Sent: Tue, 7 December, 2010 16:27:56
Subject: Re: [PD] How to avoid "choppy" midi outputs sounds using multi-user DIY 
music controllers ? (newbie question)

Hi,

Robb Mitchell wrote:
> Hi
>
> I am trying to make a musical instrument for two or three people to play at 
>once
> (fuller details below).  Each person will have a controller, and I am 
>outputting
> to a software synthesizier.
> It works fine (some very fun responses!) with one controller, but input from 
>the
> second sensor cuts short the notes played by the first (and vice versa).
> Is there some way to make a MIDI note play for its full duration regardless or
> whether another "overlapping" note is being played ?
> (and if not, other suggested workarounds most welcome)
> I thought maybe Noteout channel numbers was the way, but I maybe
> misunderstanding how these work...
Indeed you'de probaly need to go for 1 midi channel per instrument (midi 
input).
Additionally you need a "polyphony" of at least 3 notes in this case, 
that is the synthesiser must be able to output at least 3 notes 
all-together.

Hope this helps.
Lorenzo
> Many thanks
>
> Robb
>
>
>
>
> Fuller Details:
>
> I am working towards a remake and electronic update of an earlier, fairly
> popular "dance floor" sculpture:
> http://www.chateau.eclipse.co.uk/robb/socialwhirl.htm
> but hoping to transform people's movements on the rotating discs into sound
> (though not expecting to wire up as many as 28 rotating discs for some time!
> Two or three is enough for now)
>
> So the basic set up is:
> Gyroscope sensor in each disc/controller
>> Arduino
>> xbee
>> serial read in via a receiving Arduino (using Comport)
>> Pure Data  (happy to share my patch if you like)>  FM8 (currently just able 
to
>> use the Demo mode, so very open to alternative synthesiser suggestions!)
>
>
>
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