Hi, you might be interested in C::NTR::L http://cntrl.sourceforge.net. It's a Pd-based application which recognizes pitch out of an electric bass guitar, guitar, or piano (only two octaves) and trigger audiovisual fx (outputting a bang everytime a new note is recognized using a proper threshold system to avoid weird behaviour).
You can also set manually the frequencies you want to track. I use it often in my performances. If you need help while using/de-constructing it, just drop me a line, I'll be glad to help you. M > Message: 1 > Date: Wed, 16 Jun 2010 21:36:29 +0200 > From: Jon <potaxpo...@gmail.com> > Subject: [PD] triggering fx > To: pd-list <pd-list@iem.at> > Message-ID: > <aanlktinpn3urdze1m1zwrpmbvd_05xtxfs-lwl__4...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > 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!!! > > > #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; > > > > -- > -- Marco Donnarumma aka TheSAD Independent New Media Arts Professional, Performer, Teacher - Edinburgh, UK PORTFOLIO: http://marcodonnarumma.com LAB: http://www.thesaddj.com | http://cntrl.sourceforge.net | http://www.flxer.net EVENT: http://www.liveperformersmeeting.net
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