yeah, looking on the web a bit you are right, I was under the impression expression pedal=cv pedal, but cv pedals are active.

Are there any manufacturers still making CV pedals

--- In oberheim@yahoogroups.com , "Nicole Massey" <nyyki@...> wrote:
>
> Okay, if it's a TS plug then we're very probably talking about a CV pedal
> instead of an expression pedal. I would suggest the trick I mentioned
> earlier to convert a volume pedal to a CV pedal and see if that works --
> you're talking a buck or two for the battery connector.
>
> -----Original Message-----
> From: oberheim@yahoogroups.com [mailto: oberheim@yahoogroups.com ] On Behalf
> Of steinbergerstyler
> Sent: Thursday, November 04, 2010 3:42 PM
> To: oberheim@yahoogroups.com
> Subject: [oberheim] Re: expression pedal for Matrix 6
>
>
>
> I plugged a Yamaha FC7 into the Pedal 1 jack--the Matrix 6 senses it and
> will transmit the appropriate CC# via midi to my computer but only for value
> 0-14 (i.e. out of 0-127). The pedal doesn't have any audible effect on the
> Matrix patches even when programmed appropriately, which leads me to believe
> it's a problem with the pedal or the Pedal 1 jack.
>
> Is this the wrong kind of pedal The manual says you should a standard
> guitar cable for the input (i.e. TS plug ) but as far as I know all
> expression pedals use TRS plugs.
>
> Any suggestions Anyone ever get Pedal 1 to work on the Matrix 6 or 6R)
>
> --- In oberheim@yahoogroups.com <mailto:oberheim%40yahoogroups.com> ,
> "tacitron" <tacitron@> wrote:
> >
> >
> >
> > --- In oberheim@yahoogroups.com <mailto:oberheim%40yahoogroups.com> , Paul
> Cunningham <paul@> wrote:
> > >
> > > if it doesnt take a cv pedal
> > > it takes a regular switch like a sustain pedal.
> >
> >
> > Yeah, the Matrix 6 keyboard has both.
> >
> > According to the manual, pedal input #2 is a momentary pedal / switch
> > pedal. It also functions as a trigger input. Pedal #1 is the
> > rocker-style or volume pedal. (The manual does actually seem to mix up
> > the pedal inputs in some sections, which is confusing.)
> >
> > I tried my Roland EV-5 rocker pedal in pedal input #1 but could not get it
> to do much of anything, no matter what I programmed.
> >
> > I used a Boss momentary pedal (with switchable polarity) in input #2 and
> was able to get it to affect the sound as expected based on the settings in
> the modulation matrix of various patches.
> >
> > The fact that my EV-5 pedal doesn't work in my keyboard isn't
> conclusive... maybe my pedal #1 jack is broken, or maybe the EV-5 hasn't got
> the right capacitance or polarity for what the Oberheim Matrix 6 is
> expecting -- though if the polarity was wrong, it just would work in the
> reverse fashion. The EV-5 also has a sensitivity knob on it... adjusting it
> made no perceptible difference.
> >
> > Unfortunately I don't have any other rocker-style pedals to try.
> >
> > - t
> >
>