need audio click to momentary switch...

[ashcat_lt]

I've got some basic idea of electronics theory, but I'm not too terribly advanced.  Was hoping for some help on what I think should be a fairly simple contraption. 

What I need to do is take an audio click source from, say a drum machine, and somehow convert it so that it acts like a momentary switch.  The application of this is to sync my Boss DD-5 to an audio click track via it's Tap Tempo input.

Any advice or help would be greatly appreciated.

[jxoco]

have a look at this
http://www.uoguelph.ca/~antoon/circ/relay4.html


It 'hears a noise' and closes a relay.
A relay might be an easy thing for you as I think that the foot switch is just a spst switch.
You could replace the microphone with a plug, into the output of the drum machine.

[Transmogrifox]

Note that the op amp can be almost any op amp.  If for whatever reason you're having trouble finding a 741, then pick whatever is available.  The transistor is also a non-critical component, though there will be a minimum current rating required.  Better ask on that one if you need to substitute.

[calpolyengineer]

It would also be quite beneficial to get someone here to convert it to single supply if possible, unfortunately I am of no use in that regard. Paging Dr. Hammer.

-Joe

[ashcat_lt]

So, okay, anybody out there know how to convert this to single supply?

[no one ever]

It would also be quite beneficial to get someone here to convert it to single supply if possible, unfortunately I am of no use in that regard. Paging Dr. Hammer.

-Joe

How about the Tone God?

http://www.geocities.com/thetonegod/

[Paul Perry (Frostwave)]

Another approach, if anyone wants to design one, is to use a 555 timer as a 'one shot'. I did this once for a similar application (rim shot audio from a drum machine, generating a controlled-length pulse to drive a SH-101 arpeggiator clock input).

[calpolyengineer]

Check your email.

-Joe

[Processaurus]

Another approach, if anyone wants to design one, is to use a 555 timer as a 'one shot'. I did this once for a similar application (rim shot audio from a drum machine, generating a controlled-length pulse to drive a SH-101 arpeggiator clock input).

The boss switch is just a momentary switch that connects the tip of the plug to its sleeve.  Why not recreate that electronically by using Paul's idea to control the base of a transistor that has its collector connected to the sleeve and emitter to ground?

[Paul Perry (Frostwave)]

An advantage of the 555 route (and why I used it) is that it automatically 'debounces' the system, the input signal is ignored after the initial triggering pulse, until the period of the 555 elapses.

[ashcat_lt]

calpoly sent me something similar to what I think paul is talking about.  it looks a lot simpler than the other link above, I guess I'll try that.  Now, if I ever actually get around to it, I'll let y'all know how it works out.  Thanks everybody

[calpolyengineer]

yes, that is what paul was talking about. Just a 555 in monostable (one-shot as it is often called) which drives a relay.

-Joe

[mwynwood]

I know this is an old post, but did anyone find a solution to this?
Thanks 

[artifus]

http://www.diystompboxes.com/smfforum/index.php?topic=94909.0