Each parametre on the Voyager has value variables up to 255.
But logic send up to 127 value with midi.
I can’t send 0 to 255 value, in this case playback sound is bad.
For example filter cut of sound not smooth,
logic send midi value 30 voyager accept 60,
logic send midi value 31 voyager accept 62.
I can’t send value 61 with logic.
How can I send 0-255 value to voyager with logic?
You need to send SYSEX and not CC messages.
Have a look in the Sysex, and learn, that most parameters are stored in full 16 bit width. So the there are 2^16 different values possible. This is 65536.
The number range shown is just a short version. When you listen closely to the detune, you will notice, that you hear more steps then the shown 256 different ones. You get several different beating frequencies, even if the value in the display is not changed. Also easy to spot on the cutoff knob, when the filter is self oscillating.
That’s really interesting.Did Moog limit the Voyagers interface to 256 steps due to cpu load or what ?
The display is limited. Just like on the Moog Source. That got also a way better resolution of detuning then the shown two digit display readout.
This maybe due to musical reasons. Or do you find it easy to go from 14887 to 15933 on the display?
Not sure how to do in logic, but the Voyager uses a combination of MIDI CC’s for certain parameters. For filter cutoff MIDI CC 19 is the coarse value and MIDI CC 51 is fine value. This is how they raise the MIDI CC resolution from 0-127. So there is 128 fine values between every coarse value, if that makes sense? This was from the original MIDI spec that was made to control a synthesizer. Just never got used much in later years as MIDI began to favor multi-channel sequencing over fine control of parameters.
I find the best way to decipher MIDI messages is to get a MIDI viewer program. Turn a knob and actually see what is being sent. I found even though the Vogager sends these coarse and fine MIDI CC’s, threre is really only two fine increments between every coarse increment, giving roughly about 256 steps via MIDI. And if you turn a knob fast it will skip over many values, this is where that MIDI stepping comes from. It can only update at a certain speed and is highly dependant on the MIDI device sending the info. This has always been the trade-off of integrating digital control with analog circuits. But having 256 steps is twice as good as only 128 steps!
Terry. I have Midiox but have not been able to get it to show me CC numbers. Does it not do that, and is there something else out there (free) that does?
Logic has a very powerful MIDI viewing display in the Environment. You might want to see if you can find a Voyager editing environment online.
Hey Mark,
I’m using Sqmidi tools MIDI analyzer, an old WIN95 program.
I tried Midiox, and the first window that came up was the MIDI monitor. That shows all the incoming MIDI data, but is a little confusing. For filter cutoff, the Midiox reports MIDI CC 13 and 33 and gives the value in hex. Tough to read the values like 0A and 2C, they are the actual values sent, but 0-127 is easier to grasp then 00-7F. There is a box to check under “Options” then “data display” with the choice of Monitor input hex and Monitor output hex. Just realized hex 13 would be equal to CC 19, and hex 33 would be CC 51, confusing but hexidecimal is really what is sent.