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Subject: Re: No more guessing!

From: "J. Larry Hendry" <jlarryh@...>
Date: 1999-11-25

> > jlarryh@... writes:
> > I guess the main thing I can thing to use a
> > VC Lag would be portamento. Are their others?
>
> From: JWBarlow@...
> Basic processing of any CV source. For example:
> if used at the output of a S/H, a lag processor would
> act like a portamento (as you suggested), but if
> used at the input of a S/H, the module can be used
> to keep the step size within a small voltage range
> (time dependent), but have no effect on
> portamento. And as Paul said, as a (cheesy) LPF.

Thanks JB and Paul. I will have to invest some time thinking about "how"
the LPF would work. What else is this puppy good for ?

> From: jlarryh@... :
> You asked for a vote on the light, if ON when bypassed,
> I vote RED. Although the two color thing would be REALLY
> cool with green = active and red = bypassed. <grin>

> From: "Paul Schreiber" <synth1@...>
> Another way to look at it is to have a GREEN LED for when
> VC lag is ACTIVE. Maybe GREEN/RED is OK, it's just the
> little devils are so $$$. Actually cheaper to do a '700 style
> with 1 Red and 1 Green.

> From: JWBarlow@...
> I say just one LED.

I have to agree with Stooge JB here. One LED would be preferable. If no
one wants the dual color, then I say go with just one also. I just thought
two color would be cool and another place where it seems to "fit", ala
320.

> From: jlarryh@... :
> Would it be possible for the bypass to function two ways
> - one as you described but also going into bypass or active
> when a certain DC voltage is exceed when applied to the tip
> connection of the same jack ?

> From: "Paul Schreiber" <synth1@...>
> I can set the switch point to like below 0.5V = bypass. Stooge
> Larry is ratcheting up the features and price. He needs a job at HP.

> From: JWBarlow@...
> Or maybe. the module is bypassed when the tip voltage goes to
> ground, else it stays active???

Whatever. I don't want to drive up the price. But it just seems natural
that this input jack should be able to be used for either a switch input or
voltage input. (voltage input as a switch). That way those of use using
MIDI2CV converters could assign some controller to a aux voltage output and
use that output voltage to key portamento on and off without having to
dedicate a foot switch. However, I think the footswitch feature is great
when MIDI is not in the picture.

> > From: jlarryh@... :
> > It also seems to me that it would be useful to be able
> > to control "initial controls" even when using CV. Help
> > me if I am thinking wrong, but it looks like you could by
> > putting the CV into the "UP & DOWN" input and using
> > the separate "UP" and "DOWN" pots for initial control.

> From: "Paul Schreiber" <synth1@...>
> Correct! It's just into the summing amps.

> From: JWBarlow@...
> That CV Rise/Fall control is crying out for a
> reversing attenuator!!!! It really is!

Yes, I agree John. Just that one input (rise&fall). Like the FM1 input is
done on the MOTM-420 ? That really seems like a cool idea to me. That way
you would could use positive or negative going envelopes or whatever
without being concerned about the polarity. John, you are the man !!

LH