RE: [Andromeda_A6-ION] Digest Number 470
2007-11-30 by Eduardo Saponara
Hi Charles,
Well, the Andromeda Manual states that the EXP input is expecting a mono plug, (see for yourself, I'd be curious to know if this was an error) and then TRS exp. pedals don't seem to work. I understand the voltage divider process by which the TRS pedals work, but this can be accomplished with 2 conductors as well, using the ground and tip as the wiper and ground of a pot, for instance. Are you using a trs exp. pedal successfully? Maybe the F2 has a way of telling what the synth expects? Mine doesn't work unless the insert cable is used taking the ring connection out.
I also tried inverting the response of the pedal and still got no joy with the TRS connector Exp. Pedals. Can you confirm that you are using an exp. pedal with trs connectors?
I'll try a trs cable with my FV-500 and see if I can get it to work.
So the F2 uses the same jacks for volume pedal and exp. pedal functions?
Russ:
The moog pedal seems to have an integrated cable, and since it seems to be a CV pedal there is a chance it provides the voltage, being designed for use with moogerfoogers. be sure before you order, an extra $15 isn't too much for the right thing.
BTW, I have a friend looking for an Andromeda in the NYC area with no tuning issues and in good shape, if anyone knows of one please forward the info to me.
Eduardo
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Posted by: "charles graef" vogelscheiss@... modularcharles Thu Nov 29, 2007 8:12 am (PST)
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Well, the Andromeda Manual states that the EXP input is expecting a mono plug, (see for yourself, I'd be curious to know if this was an error) and then TRS exp. pedals don't seem to work. I understand the voltage divider process by which the TRS pedals work, but this can be accomplished with 2 conductors as well, using the ground and tip as the wiper and ground of a pot, for instance. Are you using a trs exp. pedal successfully? Maybe the F2 has a way of telling what the synth expects? Mine doesn't work unless the insert cable is used taking the ring connection out.
I also tried inverting the response of the pedal and still got no joy with the TRS connector Exp. Pedals. Can you confirm that you are using an exp. pedal with trs connectors?
I'll try a trs cable with my FV-500 and see if I can get it to work.
So the F2 uses the same jacks for volume pedal and exp. pedal functions?
Russ:
The moog pedal seems to have an integrated cable, and since it seems to be a CV pedal there is a chance it provides the voltage, being designed for use with moogerfoogers. be sure before you order, an extra $15 isn't too much for the right thing.
BTW, I have a friend looking for an Andromeda in the NYC area with no tuning issues and in good shape, if anyone knows of one please forward the info to me.
Eduardo
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Posted by: "charles graef" vogelscheiss@... modularcharles Thu Nov 29, 2007 8:12 am (PST)
The A6 expression pedal jack is TRS, as is the F2 input. The voltage being
attenuated through the pot in the F2 comes from the A6 and returns to it via
the same plug.
The selector switch on the F2 is for choosing its operational mode, either
using a TRS cable, as you would with the A6 expression jack, or as a volume
pedal inline between the output of something and an amp.
There's no such thing as a mono exp. pedal input, per se. You'd need to
have a voltage source. You can use an expression pedal in a modular by, for
instance, taking a voltage source like the Doepfer A176 and running it
through the pedal in volume pedal mode and into a CV in elsewhere on the
modular.
FWIW the scaling of the F2 works fine with my CME UF8 MIDI controller
keyboard. Why Alesis doesn't subscribe the A6 to the same standards that
other expression inputs use is an open question.
--Chuck
attenuated through the pot in the F2 comes from the A6 and returns to it via
the same plug.
The selector switch on the F2 is for choosing its operational mode, either
using a TRS cable, as you would with the A6 expression jack, or as a volume
pedal inline between the output of something and an amp.
There's no such thing as a mono exp. pedal input, per se. You'd need to
have a voltage source. You can use an expression pedal in a modular by, for
instance, taking a voltage source like the Doepfer A176 and running it
through the pedal in volume pedal mode and into a CV in elsewhere on the
modular.
FWIW the scaling of the F2 works fine with my CME UF8 MIDI controller
keyboard. Why Alesis doesn't subscribe the A6 to the same standards that
other expression inputs use is an open question.
--Chuck
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