[MTR] cv in issues - oct2 freq sync modulation

The stepping sound problem in sync sweeps is indeed to do with an octave jump, it sounds like a quick downward sweep, it happens earlier when you turn the freq dial up while playing higher notes.
could be a result of the top octave looping, but it seems to happens quite early so it’s a bit inconvenient. (ranges 2’o clock and upward)

as mentioned, i was having strange results modulating pitch 2 with cv from a cp 251

at first i had a cv offset as soon as i plugged in a non connected cable. i reset to defaults and did a note calibration, now there is no more offset with just a cable.

lfo from cp251 to Cv volume input routed to osc 2 freq causes the freq dial on the editor
to sweep up and down, however the center point is the lowest (7oclock postion)

so it s only moving in the upper part of the cycle. i would have expected it to be the center,
12 o’clock position, or ideally the position that the physical dial displays
(both the physical-button value and cv input value working together)

this is part of the reason why it’s unuseable
(positions 7 till 10 o clock on the freq dial also give silence, as expected when you go too low with freq of the synced lfo)-
there does seems to be more distortion/breaking up than just that going on though.

could you send me a message explaining how to do the cv calibration, _1 or _4 volts?

Thanks,

I’m passing this information to Amos and will ask for his reply regarding each issue.

Hello Matthias. Please see Amos’s response made once checking into your report:

“Not a bug; the issue here is that the triangle LFO of the CP-251 has voltage range -5 to +5V where the input of the Minitaur is only 0 to +5V. That’s why “center” (0v) on the LFO is appearing as minimum value to the Minitaur. This is the nature of the Minitaur hardware CV inputs, that 0V is minimum… so the user would need to use CP-251 mixer to attenuate the LFO to 50% amplitude and add a 2.5V DC offset to get the LFO centered at 2.5V. The CP-251 mixer can do both of these things.”

Thanks for checking into it!