hi jb,
and: wow! thanks!! this has been very clear! thanks for writing this!
i did find something 'strange' in the 2600 book, while searching for
the text you mentioned in your reply.
on page 39 (ring modulator) of the arp 2600 book there's a drawing of
ac-coupled ∗low frequency∗ square and saw waves (these are dc
normally, right?).
these do not look like i would have expected.
it seems like the squarewave has been shifted partly upward and
partly downward, and the saw has been in an accident :)
is this because they are low frequency waveforms?
> The MOTM 110 is AC coupled -- it will not pass a DC signal. the
majority of
> uses for a VCA in a modular synth are to control an audio signal.
The MOTM 110
> is perfectly suitable for this type of use. However, there are
times you will
> want to gate a control voltage which may have a DC component
(offset), and the
> 110 won't work for this application though the MOTM 190 will IIRC.
so, i can't use the 110 to vc an enveloppe (which is a 100% dc
voltage)(eg into audio in of vca). (the eg cannot be morphed into an
ac waveform, right?)
but using a pulse lfo instead of an enveloppe would work because the
pulse gets ac-coupled by removing some dc-component/offset, makin it
an ac-waveform?
(is this correct?)
> Get the Allen Strange book, "Electronic Music"
i will. i found this on the web:
"My text, Electronic Music, has been reissued by McGraw-Hill Primus
Editions. It may be difficult to get in Europe so if anyone wants a
copy
please contact me direct at <
astrange@...>
I can send you copies at my cost + shipping/etc which should be well
under $40.00 US each
Cheers-
Allen Strange "
greetings,
chef!