> I'm trying to do one with at least 2 CV "parameters" for <$400 (assembled
only, as it's all SMT).
> I'd like to get $300, but I don't think I can liscensing another design.
Hey, that's less than I paid for my TC Electronic D-Two!
The good thing about a Delay as a part of a _modular_ synth is that you can
add a lot of features just as you need it, with other modules. Don't worry
about the "right" Loop filter for these echoes growing "distant" (loosing
bass and treble) - you can patch this up with any regular VCF in the system.
Well, you might provide a simple 6dB rolloff with variable corner frequency
for the simple stuff. Other than that, just make the feedback loop "open"
such that you can patch in whatever you need. Ever tried a frequency shifter
in the feedback loop? Or a simple ring modulator? Hmmm ...
What you ∗do∗ need is a _limiter_. Really. Especially with a lot of
external stuff patched in, which will push the loop gain above unity
easily, you want a limiter. Digital, part of the DSP code.
And provide a lot of Delay time. 20 seconds minimum. RAM is cheap
nowadays, and all the Loop Artists will run and buy a MOTM delay
if they can use it as a Looper. Provide switches for clean doubling
and halfing (is that the word?) of delay time, in addition to CV inputs.
Loopers like this. And a CV input for adding Tape-echo-like wow and flutter.
Make it stereo, if it's possible.
JH.