Controlling the Minitaur with my feet. One Million Questions

Welcome to the Taurus, Minitaur and Sirin Forum
Post Reply
evannaculum
Posts: 8
Joined: Wed Mar 11, 2015 9:19 pm

Controlling the Minitaur with my feet. One Million Questions

Post by evannaculum » Sun Mar 29, 2015 3:28 pm

i want to be able to control the LFO rate with my foot. I am using a Moog EP-3 expression. the EP-3 has a range dial on the side which is great, but I need to adjust the opposite end of the range as well. basically, i want to sweep the LFO rate from about 40% to 60 or 70%. when the expression pedal is all the way up, the LFO rate is at 0%, i want to set it so that when the expression pedal is all the way up, the LFO rate is at 40% and when the pedal is all the way down, the rate is around 70%. is this possible? i have it set to the pitch CV input, and tried messing with the calibration, but all that seems to do is bump it in the positive direction. no matter what, when the pedal is in the full up position, the LFO rate is at 0%

a second issue thats bugging me is the LFO clock divider doesn't have any effect. when I set one of the CV's to LFO clock divider, i can see the expression pedal changing the clock division while i have the stand alone editior open, so it is working. the expression pedal is sweeping through all the clock divisions, however there is no audible change in the LFO. what am i doing wrong here?
From the manual, it states this: "When the Minitaur powers up, the settings on the VCO LFO AMOUNT and VCF LFO AMOUNT controls have a direct effect on the VCO and VCF. This behavior continues until the Minitaur receives a MIDI Mod Wheel command, from which point the Mod Wheel takes master control of the LFO modulation amount set by the Amount controls." I am using a weird midi controller, it is a bass guitar, and it does not have a traditional mod wheel like a midi keyboard would have, but it does have a footswitch modulation control that unfortunately does not have an option to turn off. i tested this by plugging one of my expression pedals into the footswitch port of my midi controller and sure enough it turns on the LFO, but acts as a sort of on/off switch. Im thinking that this is what is causing the LFO clock divider issue, is there a global setting in the stand alone editor that i can change to stop the minitaur from receiving this MIDI mod wheel command from my midi controller?

third issue...i have a 4th EP-3 plugged into the gate CV, I know this CV only controls a couple selections of on/off parameters, but it does not work at all. i have tried plugging other expression pedals into the gate CV to confirm that it is NOT a faulty cable or pedal. is the gate CV broken? or maybe its because i need a footswitch instead of expression pedal? will a FS-1 do the trick?

#4...my midi controller seems to want to change the minitaur settings. i dont want this to happen. which of the global settings do i need to change in the stand alone editor to stop the minitaur from receiving commands from my midi controller on sound changes. obviously i need my midi controller to be sending note and pitch wheel commands, but for some reason, whenever i change a setting of my midi controller (be it, dynamics, velocity, sensitivity, ect...) the minitaur goes to bleep.

#5...how can i add more expression pedals? is it possible? I have been eye balling the CP-251, but not sure its going to add any more functionality with my feet. If it allows me add more expression pedals or to better control the LFO rate time and VCF LFO amount with my feet, then i'm sold. what i would like is to be able to control: LFO rate time, VCF LFO amount, decay, attack, and cutoff freq with my feet.

#6...midi sync and midi clock generator without the use of a DAW. is there a hardware midi clock generator that i can use with the minituar? how would i send the midi clock message if the ONE midi in port is tied up with my midi controller? my midi controller has a midi in that is free however, can i send the clock message through the midi controller to sync the LFO? would this solve any of my LFO troubles?

SORRY for this wall of text and quite possibly gibberish. i know the minitaur was not really designed to be used in this fashion, but then again, no synthesizers really are...yet... 8)
My philosophy and what i'm trying to do is simple, from about the 50's to early 2000's the music industry was driven by record sales. bands would basically go on tour to promote the sale of their albums. since the internet renaissance, all that has flip flopped. albums and music downloads sell for pennies if anything, and concert tickets sell for big $$$ Electronic music is AWESOME, but the death of it is going to be the live performance. People still have the love to see a live band and the emotion that goes along with it. i believe live performance of live electronic instruments by live people is the future. im not trying to say I invented this idea, there are many out there already doing this, but I believe it will be mainstream soon.

User avatar
_DemonDan_
Posts: 1273
Joined: Mon Nov 16, 2009 4:52 pm

Re: Controlling the Minitaur with my feet. One Million Quest

Post by _DemonDan_ » Mon Apr 06, 2015 11:42 am

Hi evannaculum,

As you've probably noticed, an overload of questions in one post gets you significantly fewer responses.

I'll chew off a few here and there over time:
evannaculum wrote:I want to be able to control the LFO RATE with my foot. I am using a Moog EP-3 Expression Pedal. The EP-3 has a range dial on the side which is great, but I need to adjust the opposite end of the range as well. Basically, I want to sweep the LFO RATE from about 40% to 70%. When the expression pedal is all the way up, the LFO RATE is at 0%. I want to set it so that when the expression pedal is all the way up, the LFO RATE is at 40% and, when the pedal is all the way down, the LFO RATE is around 70%. I have it set to the PITCH CV CONTROLLER INPUT, and tried messing with the calibration, but all that seems to do is bump it in the positive direction. No matter what, when the pedal is in the full up position, the LFO RATE is at 0%.
Clearly you are (or are becoming) a power CV user. To this end you really should consider a CP-251 Control Processor (or two;-)

Its 4-input Controller Mixer has Input Gains, a MASTER gain, and both regular and inverted OUTs. But the key thing for you is that it also has an OFFSET parameter. This biases your output voltage so that, in conjunction with the above gains and polarity, you can easily set a desired voltage for both the toe and heel position of a foot controller (even if it doesn't have a Min or Max knob on the side).

If you don't want to get a CP-251, you can make use of the fact that CVs tend to be added to the existing parameter value. So, where you set a parameter's value initially is an important part of getting a foot controller's sweep to behave as desired at both ends.

I've always felt that a TRS Foot Controller with both a MIN knob & a MAX knob would be staggeringly useful for CV synthesis and effects.
_ :twisted: _DemonDan_ :twisted: _

Post Reply