[PD] Modular Switching/Matrix

Mathieu Bouchard matju at artengine.ca
Tue Oct 24 11:17:41 CEST 2006

On Mon, 23 Oct 2006, Greg Surges wrote:

> I'm a music composition/technology major at the University of 
> Wisconsin-Milwaukee, currently taking a course in PD, and also studying 
> it in private lessons. I am wondering if anyone has any experience with 
> matrix-type switching, i.e. a modular system in which any module can 
> connect to any other module in any order.

Matrix-type switching doesn't allow "in any order", it's just a 
super-spigot that can handle all connections from M outlets to N outlets 
using a M by N grid of toggles.

> I'm especially concerned with expandability, in my current layout, if I 
> have n objects, I have to have n-squared switches. Above a certain 
> number, adding a module could become very time-consuming.

The only way around that is to not include every possibility. Break down 
your matrix into smaller matrices according to which effect combinations 
are least likely.

> I also need the ability for the system to allow recursive patching.

Recursively patching the DSP requires delay lines.

> I'd really appreciate it if anyone has any insight into this problem and 
> could possibly shine some light towards a solution.

Maybe if you shone some light towards a complete analysis of your 

  _ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada

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