I’m a newbie and I was wondering if one of the Voyager Gurus out there can help me.
I am try to figure out what the ranges of the Mod Bus amounts are. For example, if I send the LFO Triangle to pitch, how high and low does the pitch go when the amount is set to 10?
It would be nice the ranges for each destination, but for me, pitch is the most important one.
Thanks in advance!
You will find that information on page 96 of the Voyager’s user manual. Listed as VX-351 outputs, they are the exact same voltage levels doing the magic inside your Voyager, even if there is no VX-351 attached to it.
Thanks Portamental!
Since the keyboard pitch voltage output from the VX-351 changes by 1 volt per octave, then I assume the LFO range is +/- 5 octaves (because the mod range is +/- 5 volts).
Please correct me if I am wrong and thanks again for the help.
I directed you to the manual so that you can get familiar with CV stuff first. After that, it takes a while for the theory to sink in, it’s only natural.
Here’s how it goes.
Most CV’s vary from -5 to 5 volts. However, the mod busses maximum range is -4 to 4 volts, so in full swing, there is a possibility of 8 octaves range here. However, if you mix from the mod bus to pitch (destination), this voltage is going to be added to the running pitch voltage inside the Voyager. There is a chance that the voltage swing brings you outside the -5 to 5 normal range of the pitch CV. Nothing bad will happen except you’ll be out bound. This extreme case mostly for the discussion here.
As you have figured out, the amount knob of the mod bus must be set to maximum for a CV passing through the bus to remain the same, otherwise, it is scaled down.
Now let’s see what happens with the LFO. We are assuming bus amount knob set to maximum.
Square LFO : 0 to 3 volts. Passing through the mod bus and directed to pitch, this is a 3 octaves step being added to the note played.
Triangle LFO : -2.5 to 2.5 volts. Passing through the mod bus and directed to pitch, this is a 2.5 octaves up and 2.5 octaves down being added to the note played.
In both cases, this is within the specs of -4 to 4 volts, so you get the full range of the LFO without being clipped.
From there, there are many many ways to tweak CV’s up and down, some you can do with the Voyager only, although a VX-351 give you much more options. A standard expression pedal can be used in red jacks to offset CV’s. The CP-251 can attenuate, mix, offset or double your CV’s. The possibilities are endless.
The amount knob is an attenuator for the MOD buss signal. The votage is only important if you are checking using a DMM (voltage meter). Otherwise the best way to evaluate the scale of the amount knob is to use your ears and take note of were the best modulation is with knob position.
BTW, don’t forget that the amount knob voltage interacts with the pitch wheel for bus1 and the mod2 (labeled wrong on the Voyager) input for bus2.
Cheers,
Aaron