Xpantastic!

Hi folks,

I recently bought a stereo volume pedal with a stereo 1/4" jack on it, 
and it's not working with the Crumar Toccata I have.

But will it work in Pedal Input 1 & 2 in my Xpander? I'm confused. How 
can a MIDI controller be a 1/4" jack, and how the heck can it be in stereo?

Also, are the pedals unique to Roland, Korg, etc, or is it the same 
standard?

I've tried looking online but no dice.

Thanks for any advice,

Jeremy.

>
> But will it work in Pedal Input 1 & 2 in my Xpander? I'm confused. How
> can a MIDI controller be a 1/4" jack, and how the heck can it be in stereo?

You would have to assign Pedal 1/2 to a CC#.
But I believe pedal 1/2 are intended to be used as on/off switches,
not sources that can vary a signal, as in a volume pedal.
I may be wrong.

If your pedal has a pot in it, try assigning it to CC7 in the xpander
and assign that to a VCA, see if your volume changes.

> It´s possible to connect momentary switches as also pedals w/ a pot inside to the Xpander.

> Momentary switches and pedals can be routed as modulation sources Pedal #1 / Pedal #2 to any modulation destination like VCAs, >Filter cutoff, resonance and so on.
Yes- but these will only provide on/off type of modulation, not a
smooth transition between a min and max value, like a pot would.
Perhaps you could smooth out the threshold between the on/off using
the Tracking Gens.

>>pedals in addition, - but that doesn´t mean the pedals transmit these controllers,
Of course not, not if it has a 1/4 inch jack on it. It's just a pot,
or an open/closed switch, no midi.

PeWe wrote:
> Hi Tony !
>
> It´s possible to connect momentary switches as also pedals w/ a pot 
> inside to the Xpander.
> A Moog CV-pedal Modell 1120 p.ex. or a Oberheim OBX-P pedal.
> Both, switches or pedals, need to have standard 1/4" TS phones 
> connectors,- but not (stereo) TRS ones.
>
> Momentary switches and pedals can be routed as modulation sources 
> Pedal #1 / Pedal #2 to any modulation destination like VCAs, Filter 
> cutoff, resonance and so on.
>
> There is a selection of standard midi controllers available in the 
> midi page, assigning controllers like CC#07 (volume) or others to the 
> pedals in addition, - but that doesn´t mean the pedals transmit these 
> controllers, - it´s just the _virtual_ "pedal inputs" which receive 
> midi controllers, being routed as "Pedal #1" and "Pedal #2" to the 
> modulation destinations.
>
> Example:
> No dedicated Pedals connected to the Xpander and "Pedal #1" in the 
> midi page set to "volume CC#07",- means:
>
> Any received CC#7 midi data is routed to pedal #1 and is only active 
> if pedal #1 is being set up in a patch to modulate p.ex. VCA 2,- 
> result = volume control by a midi controller.
>
> No midi input, but physical pedal #1 being connected to pedal#1 input 
> and routed to modulated VCA2,- result= volume control via the physical 
> pedal ( not by midi).
>
> hope that´s clear now ...
>
> PeWe
>
>
> Tony Cappellini schrieb:
>>
>> >
>> > But will it work in Pedal Input 1 & 2 in my Xpander? I'm confused. How
>> > can a MIDI controller be a 1/4" jack, and how the heck can it be in 
>> stereo?
>>
>> You would have to assign Pedal 1/2 to a CC#.
>> But I believe pedal 1/2 are intended to be used as on/off switches,
>> not sources that can vary a signal, as in a volume pedal.
>> I may be wrong.
>>
>> If your pedal has a pot in it, try assigning it to CC7 in the xpander
>> and assign that to a VCA, see if your volume changes.
>>
Ah, I think I understand. Thanks for the answers!

The pedal is just a pot, a volume control (up/down).

It looks like I'll have to get a PC-200 MKII controller with a pot pedal 
socket. I used to have one but it broke so I got a MK 1 and it's not as 
good. With this I should be able to mess around with the Xpander's 
filter by pedal. :-)

Jeremy.

I once tried to re-wire a guitar volume pedal to hook to the pedal inputs to my M12.  It worked, but only in a really narrow range (like the center 1/4 of the pedal's travel), it was "railed" beyond these limits.  I did this by tying each of the the pot's three legs to each of the tip-ring-sleeve conductors of a stereo 1/4" plug.  I figured adding a resistor to the upper and lower legs of the pot would fix the "railing" problem, but never got to it... anyone else ever tried this?  I still have hooked up to this day.
 
Randy
 

--- On Wed, 9/24/08, PeWe <ha-pewe@...> wrote:

From: PeWe <ha-pewe@...>
Subject: Re: [xpantastic] Pedal confusion
To: xpantastic@yahoogroups.com
Date: Wednesday, September 24, 2008, 7:48 PM







Yes, a pedal in general is just a pot you move w/ your foot,- but this not only for "volume" ...

Manual says clearly: Pedal inputs for PEDALS or FOOTSWITCHES.

All common momentary switches work as expected if the polarity is right.
A PEDAL works like a LEVER ( of a Matrix12 p.ex. and a LEVER is a pot )
If it works or not depends on the pedal or pot used.
You cannot use any pedal.

Lever 1 and Pedal 1 exist independently for each voice, Lever 2 and Pedal 2 are universal controllers, - this does not depend on midi in any way.

Jeremy Smith schrieb: 



Ah, I think I understand. Thanks for the answers!

The pedal is just a pot, a volume control (up/down).

It looks like I'll have to get a PC-200 MKII controller with a pot pedal 
socket. I used to have one but it broke so I got a MK 1 and it's not as 
good. With this I should be able to mess around with the Xpander's 
filter by pedal. :-)

Jeremy.