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|previous: Mike Burgundy Re: basic wah sequencer at geo -- 1/24/2001 2:38 AM||View Thread|
|1/24/2001 5:09 AM|
Yep. Actually, not too difficult, as I've been working on that part for a while.
OK, here's the design spec I'm working to:
- minimum two "channels", practical maximum of eight
- each channel fades in when selected, fades out when deselected; digital selection for ease of interface with the sequencer
- Fade speed is the same for all channels, and is adjustable with a single pot
- Fade varies from almost instant to about a two second crossfade
- choice of select-one, round-robin, or random selections, independent of fade speed
- sequencer speed variable
- internal buffer/splitter and mixer to remix inputs if desired
The engineer in me wants to add - costs under $1 and fits in a 1590BB, but I suspect I may not be *that* good
I already have circuits designed for each part of that mess. The trick is to condense what is a big bunch of circuits down to something manageable for the casual builder.
Ideally, it would be modular like the old "bit slice" processor chips - you could make a computer as wide as you liked by paralleling as many four-bit-wide slices as needed. I'd like to make this something that could be used as a by-two crossfade, with another board or something to add one or two more channels as the need arises.
Anyway, since you're kibitzing, what else goes in there? A straight channel, that the others mix into, so there's a "constant" channel that the others vary against? Independent outputs so that you can do multi-amps? What have I missed?
|Mike Burgundy Wow, I had to ask.. ;p|