MOTM

1. Make sure the CV Mod control on the VCA is turned up - this controls how
much the envelope affects the VCA gain. If it is off, and the VCA gain is 0
or less, you won't get anything out of the VCA.

2. PWM is an input, not an output. PWM (the knob) controls the amount a
signal plugged into the PWM jack affects the width of the pulse wave output.
So plug a LFO, envelope or something into the PWM input, turn up the PWM
knob, and listen to the signal out at the Pulse jack. The width of the pulse
at any instant is a combination of the Width knob (sometimes called initial
pulse width), and the PWM control signal.

Dave Bradley
Principal Software Engineer
Engineering Animation, Inc.
daveb@...

> -----Original Message-----
> From: Tentochi [mailto:tentochi@...]
> Sent: Friday, May 14, 1999 4:04 PM
> To: MOTM Mailing List
> Subject: [motm] Still having possible ADSR problems
>
>
> From: "Tentochi" <tentochi@...>
>
> Paul walked me through this before and I didn't write it down.  Stupid me.
>
> I **still** can't get anything to sound right.  Perhaps I don't understand
> all of the labels on all of the panels well enough.
>
> Most basic set-up.  Hook VCO (sine, square, triangle, PWM)
> directly to amp.
> Steady tone can control pitch (fine & coarse).  Width affects PWM output,
> but PWM knob does not affect output.  Constant tone.
>
> 2nd most basic set-up.  Put CV (Korg Prophecy-->Novation Bass
> Station Rack)
> into VCO 1V/Oct.  Pitch changes as expected.  Constant tone.
>
> The most basic synth (with no filters of course--Come on June 15th!).
> CV into VCO 1V/Oct (as above)
> VCO Sine into VCA CV
> Gate (from BassStation) into EG GATE
> EG OUT+ into VCA IN
> VCA VCA OUT into amp
> VCA Gain to zero (and all other values)
>
> Sometimes I get sound all of the time with bizarre attacks and decays.  I
> tied the VCA Gain at zero and all other values.  It is actually hard to
> describe.  It does seems as the gate is making it in from the BassStation.
> The sound is always soft connected like this too.
>
> Is it patched wrong?
> Is a knob or switch the wrong direction?
> IS the VCA or EG not working properly?
>
> I've tried lots of combinations.  It seems like the EG???
>
> Also what is the VCO PWM modulation **supposed** to do?  I thought it was
> the equivalent of Depth.
>
> Have I given enough information?
>
> Thanks!
> Todd
>
>
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