[PD] triggering fx

[tim vets]

2010/6/16 Jon <potaxpotax at gmail.com>

> i'm planning a patch that will listen to live acoustic instruments
> (via fiddle~or sigmund~) and then trigger some effects when the
> analysis objects detect certain frequencies. the catch is that i not
> only want to trigger these fx: ideally the effect should be sustained
> until fiddle or sigmund detect some other frequency. below is a small
> piece of code that works for this (triggers at 400, stops at 500), but
> i'd love to see other approaches, especially if they are less
> cumbersome (because i don't wanna do this with a pair of frequencies,
> but a bunch of them!)
> thank you!!!
>
>
Hello,
In so far pitch tracking is easy, this should be easy.
I threw together this little patch to be used as an abstraction like so:
[inrange 36 48] to monitor pitches that are within the range 36 to 48.
When the pitch falls within the range, [inrange 36 48] reports 1, as soon as
the pitch leaves the range, it reports 0.
I may have overlooked the existence of an object that does this, but anyway,
maybe it's insightful for you to see a way to do it with basic objects.
Instantiate one for each pitch-range you want to monitor.
gr,
Tim


> #N canvas 0 22 450 300 10;
> #X obj -193 123 sel 400;
> #X obj -242 149 tgl 25 0 empty empty empty 17 7 0 10 -262144 -1 -1
> 0 1;
> #X obj -133 122 moses 400;
> #X floatatom -133 74 5 0 0 0 - - -;
> #X floatatom -133 156 5 0 0 0 - - -;
> #X floatatom -82 156 5 0 0 0 - - -;
> #X msg -193 148 \; fx 1;
> #X obj -242 124 r fx;
> #X msg -82 204 \; fx 0;
> #X obj -82 179 sel 500;
> #X text -143 29 (analysis);
> #X connect 0 0 6 0;
> #X connect 2 0 4 0;
> #X connect 2 1 5 0;
> #X connect 3 0 2 0;
> #X connect 3 0 0 0;
> #X connect 5 0 9 0;
> #X connect 7 0 1 0;
> #X connect 9 0 8 0;
>
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