From sam Sent Mon, Dec 10th 2018, 03:41
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 synths. 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 the position of the pedal). An active pedal will = have a phone plug with two connectors (TS, voltage and ground), while a = passive pedal will have a 3-conductor (TRS) phone jack - one for = incoming voltage, one for voltage back to the synth, and one for ground. The Ensoniq pedal is passive, and there are definitely two flavors of = passive pedals. If I recall correctly, one uses a linear pot, and the = other uses an audio-taper pot. I remember once on the road some of our = gear got stolen, and I had to use a Yamaha expression pedal with my = Ensoniq boards. All the =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. I have not, though run into a situation where the pedal is wired = differently=E2=80=A6 Sam Mims Syntaur > 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 = compatible with a new USB-MIDI controller. Is there one standard for = wiring a passive 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