Le Sun, 30 Dec 2018 19:24:37 +0100, Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxx> a écrit : > On Sun, 30 Dec 2018 19:00:04 +0100, Dominique Michel wrote: > >For the theremin, some provide MIDI Out and some Moog models have CV > >out connectors for the volume and the pitch. This CV out solution > >seam to be the best one when used with the thereminator: > >https://www.wavelicker.com/en/thereminator/ > > Unfortunately there seems to be no English information about the A-178 > Theremin Control Voltage Source on the Doepfer website. But the German > page provides some nice pictures (and dead links). There's a note in > English: "It's not possible to connect the antenna via an additional > cable to the antenna socket. Antenna and hand form a variable > capacitor with a very small capacity in the pico Farad range. The > electronics of the module is puzzled out just for this capacity > range. If a cable is added the capacity range changes totally and the > module will no longer work ! Only the Clapp and the Franklin will allow you to get a working LC oscillator with parts of that oscillator at both sides of a coaxial cable, with that cable which doesn't influence too much the frequency. I try with 1.5m and 4.5m cables and was able to make a good setup in 2 minutes in both cases, that without metering, only using my ear. > But it's possible to mount the complete > module with antenna at the desired position, e.g. into a small case > that holds one or two of the modules. For this a longer bus cable is > required." > > http://www.doepfer.de/a178.htm > To add a CV out for the volume into the Black Star may be relatively easy, the main issue being the lack of common standard between manufacturers. For the pitch, I will have first to investigate what are the existing hardware solutions to make a reliable frequency/voltage conversion into the audio range. Another issue is that I have no hardware to test it, I jumped directly to MIDI instruments in the eighties. Ciao, Dominique -- If you have a problem and you are not doing anything to fix it, you are at the heart of the problem. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
