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Registered Member #76
Joined: Thu Feb 09 2006, 10:04AM
Location: Hemer, Germany
Posts: 458
okay, i have done a lot of work and thoughts about this musical drsstc thing and i have had some success. i build a relatively simple circuit using a 555 to generate the on time periods, the off time is generated externally via a hardware synthesizer(access virus A) through a cheap optocoupler. and yeah, it works polyphonic!! i can play three sounds in one, sounds really like an electric guitar. with this nice synthesizer its possible to add delay, chorus etc. more to come soon,, . im working on a all in one pcb for a small isstc with this circuit on board to simply plug in my keyboard and synthesizer
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
YES! Finally! I knew you could do it! Not that I doubted you couldn't but perhaps maybe wouldn't lol Anyway, Too bad I don't have sound on my work computer. I can't wait to hear it.
Registered Member #914
Joined: Fri Jul 20 2007, 06:22PM
Location: South Bend, IN
Posts: 85
Don't get too close to the coil.....I had sparks from the strings to my fingers on this run, even though the preamp and wave shape circuits were optically isolated from the coil. I was told that a ground strap on the guitar neck helps (haven't tried it yet).
Registered Member #914
Joined: Fri Jul 20 2007, 06:22PM
Location: South Bend, IN
Posts: 85
That's very cool, but damn, it sounds awful!!
Yes, the lowest notes tend to wipe out anything else, and finding just the right amplitude to clip the analog to make it digital depends on how hard you finger or pick the strings vs. how high you set the preamp gain. A single note or a finely tuned chord can be very impressive however.
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