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Circuitbenders Forum => Circuitbending discussion => Drum machines => Topic started by: Jens M. C. on December 09, 2009, 04:50:40 PM

Title: Programming a 5V clock impulse
Post by: Jens M. C. on December 09, 2009, 04:50:40 PM

Hi There! I've found a cool video on youtube where a person trigs a Boss DR by a sampled clock signal. At first i fought that such a thing would be impossible, as a clock signal is not a sound, but an amount of voltage. But ever the less some guy made it possible. HOW?!

BOSS DR-220e in sync with Ableton Live (http://www.youtube.com/watch?v=rVGfen1xtXc&feature=PlayList&p=F41B06F514185002&playnext=1&playnext_from=PL&index=43#normal)

Jens

Title: Re: Programming a 5V clock impulse
Post by: Circuitbenders on December 09, 2009, 07:19:27 PM

You can sometimes trigger analogue clock inputs with a loud enough and short enough click sound, it certainly works with SH101's sometimes.. You could easily build a clock trigger waveform with some kind of audio editor. Amplify it enough and it'll trigger an analogue clock.

Or build a audio click to 5v trigger circuit if you wanted it to be more reliable.

Title: Re: Programming a 5V clock impulse
Post by: Gordonjcp on December 10, 2009, 08:58:28 PM

The clock pulse is just a slow squarewave.  The clock input is probably edge-triggered anyway.

Title: Re: Programming a 5V clock impulse
Post by: ne7 on December 16, 2009, 02:33:31 PM

try using Goldwave's expression evaluator - it has a handy sq wave generator - u can specify speed etc... (it's nice for making beepy noises anyway :))

Title: Re: Programming a 5V clock impulse
Post by: Remork on January 02, 2010, 10:00:25 PM

there's MOTU's Volta nowadays..  software that will turn supported soundcards into CV drivers.
http://bleep.fdiskc.com/2009/01/15/motu-volta-analog-integration-plug-in/ (http://bleep.fdiskc.com/2009/01/15/motu-volta-analog-integration-plug-in/)

nice idea, bit pricey maybe.