MOTM

Greetings everyone-

After years of staring at the front panel of me Deltalab Effectron I finally
took a closer look at the back and realized (duh) that besides in, out,
bypass and repeat jacks there is one labeled "control".

Yep. Running a CV from any number of MOTM modules will in fact vary the
delay time--with interesting and sometimes not so interesting effects.

My questions to anyone who might know the inner workings on the 'tron better
than I:

01 What sort of CV range (in volts) does this device want?

02 Has anyone had luck sampling CV's (with the "hold" feature) and then
playing them *out* of the 'tron to the MOTM. I only seem to get burps and
hiccups (of control).

03 Seems to me this thing is ripe for CV input hacking. Esp into the
"feedback" control. Anyone tried this?

Best,

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Aaron Day
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>Yep. Running a CV from any number of MOTM modules will in fact vary the
>delay time--with interesting and sometimes not so interesting effects.

I haven't played with anything Deltalab in years, but I have other delays
that have CV inputs.  On thing you can do is sync flanging to filter sweeps
and other events with an MOTM-320.

What I haven't been able to do is use the LFO to control a pitch shifter
(PCM80) and a key-tracked patch such that the timbre modulates but the note
remains the same.  I think might be a linear vs. log problem.

>01 What sort of CV range (in volts) does this device want?

I have no idea (how's that for a helpful answer?? :)  However, if my memory
serves me correctly, the Effectron works by changing the speed of its clock
like a BBD delay.  (I wish my SDD-2000 had a CV input.)  Depending on the
initial settings, it could go out of range with a negative voltage.  So I
would try 0 to +5V.

>02 Has anyone had luck sampling CV's (with the "hold" feature) and then
>playing them *out* of the 'tron to the MOTM. I only seem to get burps and
>hiccups (of control).

I doubt it could work with its clock stopped.  Afaik, the hold feature is a
tap.  So it essentially plays a short loop of data.  Check to see if the
input is AC-coupled.  If an input voltage was steady enough to work over
the range of a loop, it might not get past the cap.

>03 Seems to me this thing is ripe for CV input hacking. Esp into the
>"feedback" control. Anyone tried this?

Someone might have tried.  Does the feedback control use a VCA??  If not,
it is often possible to replace a pot with a vactrol.

Aaron Day writes:
>>What sort of CV range (in volts) does this device want?<<

The manual says 0 to 5 Volts, and that will give you a x1 to x0.25 delay ratio.

-Elhardt