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At 10:25 AM -0800 3/27/99, Philipp Zuercher wrote: >hi there > >for about three month I have been an Echoplex owner , and I have just >started using it for life performance as a solo guitarist and with my >trio > >sometimes when I hit the MULTIPLY button on the footpedal, the device >goes into MUTE state > >Is this a software 5.0 - or a hardware problem ? if it's a problem at all, it would be hardware, although I don't think that's what's happening: >It only happened about five or six times since I have got the LOOPER, >but you don't want this to happen on stage, do you...?! > >Could that problem and others be a result of hitting more than one >footpedal button- - anyone having had the same sort of problem? hitting two buttons at once is much more likely your problem here. If you press two of them at exactly the same time, the echoplex might interpret it as the wrong function. In the case on Multiply, pressing Multiply and Insert at the same time would cause it to think you pressed Mute. I just tried that, took me about 6 tries to tap them close enough in time for it to think I pressed Mute. That's probably what happened to you. Be more careful to tap the right button..... (It's an intentionally simple circuit, each switch swapping different resistors into a voltage divider circuit to set different voltages, which are read by an A/D. This allows for brainless footpedals with only a mono patch cord connecting to the rack. Unfortunately, pressing two switches together would put their respective resistors in parallel, causing the wrong voltage to be set. The software does debouncing and checking for these cases as best as possible, but Mult and Ins at exactly the same time would trick it.) The echoplex software is smart about the Overdub button though. When that one is pressed, you can still press the other buttons and get the right function. This allows you to do something like a sustain pedal action on Overdub, where you just hold it down as long as you want to overdub, and release it when you want to stop. All the time you are sustaining the overdub, you can still do other functions and they should work right. kim ______________________________________________________________________ Kim Flint | Looper's Delight kflint@annihilist.com | http://www.annihilist.com/loop/loop.html http://www.annihilist.com/ | Loopers-Delight-request@annihilist.com