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Subject: ASR (was: Re: [motm] possible micro module?)

From: jhaible@...
Date: 2002-02-01

> But seriously... the most common example is that you can use it to produce a
> (or several) delayed CV for melody lines (voices) that exactly follow the
> input -- for cannonic like stuff.
>
> Used like this, you quickly need a whole bunch of more VCOs and the rest.
>
> I'm sure there would be several other great uses for an ASR, but I've never
> had one so I can't say.

Another use: Polyphonic playing (sort of) from a monophonic keyboard
(or monophonic Midi-to-CV interface).
Connect 3 VCOs to the first 3 ASR outputs. The ASR input goes to the
keyboard (or Midi) CV. The Keyboard trigger (set to multi trigger!)
goes to the ASR clock.
Now you can play 3-note chords by "rolling" them on the keyboard.
You can do this pretty fast, just don't hit the 3 notes all at once, so
you get 3 individual key trigger impulses in fast succession.
That way you can "serially load" the ASR and play the 3 VCOs in
parallel for a chord.
Of course this is not equal to a real polyphonic keyboard, but
it's much better than the fixed tuning of 3 VCOs to a chord and
transposing that chord (classic chord transpose method), as you
can change from major to minor to whatever on the fly.
Of course you must hit exactly 3 keys for each chord, or your
ASR will only be partiall re-loaded. The good thing about this
is that you can actually change from "canon playing" to
chord playing on the fly, and even mix both effects.
Hard to describe, nice musical effect.

Another application is the use of several random voltages
steps that are correlated. For instance, use two resonant filters
and pan them to the two stereo channels. Modulate the
left filter with a S&H from the ASR's first output (noise at
the ASR input), and modulate the right filter with a S&H
voltage from the 2nd or 3rd ASR output. You'll get
a very interesting stereo effect, as you have two random
S&H modulations left and right, but the second one is an
"echo" of the first one.

Just two examples. I think I must do it again tonight on
my ASR module (;->). (Both examples work, I've
tried it, but it was som etime ago.)

JH.