From John Emond Sent Mon, Dec 10th 2018, 04:03
Our Pedz Eurorack module has ground on sleeve, +12V on ring, and wiper on ti= p. It doesn't work that well with the Yamaha FC7, audio. It works perfectly w= ith the Roland EX5, linear. It also worked well when tested with a really ol= d Moog passive pedal, again linear. Pedz includes a VCA as well as uni and b= ipolar attenuators. Cheers, John > On Dec 9, 2018, at 12:36 PM, Sam Mims <xxx@xxxxxxx.xxx> wrote: >=20 > First of all, there are active pedals and passive pedals, and they are all= called expression, CV, or other names. The active pedals PRODUCE their own= voltage (so they must be powered), and these are for use with vintage synth= s. >=20 > More current products (90s for sure, maybe earlier) use passive expression= pedals, where the pedal takes a voltage generated by the keyboard, and then= doles it out back to the keyboard in the appropriate amount (depending on t= he position of the pedal). An active pedal will have a phone plug with two c= onnectors (TS, voltage and ground), while a passive pedal will have a 3-cond= uctor (TRS) phone jack - one for incoming voltage, one for voltage back to t= he synth, and one for ground. >=20 > The Ensoniq pedal is passive, and there are definitely two flavors of pass= ive pedals. If I recall correctly, one uses a linear pot, and the other use= s an audio-taper pot. I remember once on the road some of our gear got stol= en, and I had to use a Yamaha expression pedal with my Ensoniq boards. All t= he =E2=80=98business=E2=80=99 of the pedal happened in just a few degrees of= travel of the pedal. So while you will get results using the wrong type of= pedal, they won=E2=80=99t be usable in a practical situation. >=20 > I have not, though run into a situation where the pedal is wired different= ly=E2=80=A6 >=20 > Sam Mims > Syntaur >=20 >=20 >=20 >> On Dec 9, 2018, at 4:22 AM, Thomas Strathmann <xxxxxx@xxxx.xxx> wrote: >>=20 >> On 09.12.18 08:24, Brian Willoughby wrote: >>> I just ran into a situation where my Ensoniq Expression Pedal is not com= patible with a new USB-MIDI controller. Is there one standard for wiring a p= assive expression pedal, or is there more than one? >>=20 >> Yes. My expression pedal has a switch to select different configurations.= It's the same mess as with sustain pedals. >>=20 >> Thomas >=20