From Brian Willoughby Sent Sun, Sep 29th 2019, 04:38
From Brian Willoughby Sent Sun, Sep 29th 2019, 04:38
On Sep 28, 2019, at 5:29 PM, Dustin Sedlacek <xxxxxx.xxxxxxxx@xxxxx.xxx> = wrote: > Every time I talk to eurorack guys about 1 v/o VCA or wavefolder they = don't seem to understand why anyone would want that.=20 >=20 > Isnt control the thing that everyone wants?=20 >=20 > What about 1v/o inputs are not desirable? Is their something I am not = understanding? Even if you made a 1V/oct VCA, you wouldn=E2=80=99t be able to calibrate = it. Have many octaves does your VCA output give you now? What=E2=80=99s = the octave range that you want from your VCA? None of these questions = are sensical, so they can=E2=80=99t be measured. If you can=E2=80=99t = measure something, you can=E2=80=99t have a standard for everyone to use = in the same way. As Tristan said, a VCO or a VCF would be very happy with 1V/oct, but = that=E2=80=99s because you can measure the frequency of an oscillator or = self-oscillating filter and calibrate. Through-zero oscillators can even = accept negative voltages, and they will oscillate in the opposite = direction, still on the calibrated 1Volt per octave standard. That said, someone might actually prefer the Buchla 1.2V/octave. Since = each octave spans twelve (half step) notes, the 1.2V/oct standard allows = for 0.1V/step. That=E2=80=99s a lot easier to calibrate than = 0.8333333333333V/step that you get with 1.0V/oct. Then there=E2=80=99s the folks that like Volts/Hertz. That might not = make sense, but some oscillator circuits are much simpler to design = without the logarithmic octave scale. Once you get started down the path = of V/Hz, you want everything else to work the same. I believe that the = Roland GR-300 is V/Hz internally, because it tracks the period of the = guitar note, and thus the oscillator just synthesizes the same period. Brian