[PD] Midi controller for use with Pd

[patrice colet]

Hello,

Le vendredi 08 juin 2007 à 16:15 -0400, David F. Place a écrit :
>  Has anyone any experience using  
> a simple device like a trigger pad for a midi drum kit?  Maybe  
> something like the Roland PD-8?
> 
> Cheers, David

 With a tiny pc shuttle, the internal soundcard (a via as far as I
remember), fedora core 3, pd, the Gunter Geiger low latency patch taken
from CCRMA repository, and some batch magiks, I've built a drum expander
where the Roland MIDI trigger converter Tmc6 is connected by a m-audio
USB midisport.

 The choosen audio driver is OSS, because it was the fastest one with
pd-0.37 and the low latency patch.

 The pd application I've made for playing drum samples uses xgroove ,
coll, vasp, tot, widget, zexy,... too many externals.

 That was my experience.

 Actually, I wouldn't like to dig anyone into the forest of undocumented
patches I've made and rewrite occasionaly, but will try to make
available as soon as possible a vanilla set of abstractions that could
make all the work.

 Anyway the percusionist I've made this installation for is very happy
about this; I've even found it has a lower latency than some expanders
we find in commerce.

 Also, I couldn't help about drum modeling, the math are very
complicated, at least too much for me, and I'm not sure if the
processing of a drum noise will be fast enough with an usual computer,
I'm more into interfacing the stuff, and with samples it works great! :)

 Handling all the MIDI messages that come from the trigger converter is
not really a complicated task, a full search on pd-list archive might
give all the answers. Though using those MIDI messages for reproducing
the same behavior than the drum expander with using samples might be
very tricky for some reasons, but not impossible, it's certainly a
subject for a good discussion...

Patko.