Crumar Musical Instruments User Group.

Greetings,

Can anyone help describe the proper tuning procedure for a Bit One?  There are four potentiometers that affect oscillator pitch, and I've fiddled with them to get the instrument in a passable state, but I'm sure I didn't do it correctly.

Thanks

not 100% sure how it was, but 2 of them are for osc1 and 2 for osc2.
they are unlogically positioned in a X formation. best to turn of osc 2 while calibrating osc1. i used a guitar tuning vst plugin. was kinda handy.

there are also some potentiometers that affect tune that are on te lower boards. one is a main croase main tune screw that is about in the middle. and there is one other different looking one that affects the pitch bend wheel.  make sure the pitch wheel also bends the same amount in both directions (both oscs!).

also the finetune knob on the back of the synth should be placed hard left (i think) since it othervise makes the mod wheel lfo work more (or only) in one direction, and that doesn't sound too cool.

it is not easy, and that guitar tuner is quite essential! let me know what you found out while doing this, and how it worked out! i'm not sure i did it 100% correctly myself, but it seems to be in tune now, and both the mod & pitch wheel seem to work properly.
 

--- In crumar@yahoogroups.com, "neurokrash" <spamkiller@...> wrote:

>
> Greetings,
> 
> Can anyone help describe the proper tuning procedure for a Bit One?  There are four potentiometers that affect oscillator pitch, and I've fiddled with them to get the instrument in a passable state, but I'm sure I didn't do it correctly.
> 
> Thanks
>

--- In crumar@yahoogroups.com, "crc1@..." <crc@...> wrote:
>
> not 100% sure how it was, but 2 of them are for osc1 and 2 for osc2.
> they are unlogically positioned in a X formation. best to turn of osc 2 while calibrating osc1. i used a guitar tuning vst plugin. was kinda handy.

Do both pots for each oscillator do the same thing, or is one crude vs. one fine?  I'm a little confused why four vs. two.
 
> there are also some potentiometers that affect tune that are on te lower boards. one is a main croase main tune screw that is about in the middle. and there is one other different looking one that affects the pitch bend wheel.  make sure the pitch wheel also bends the same amount in both directions (both oscs!).

Oh!  Any idea which pots affect the mod wheel?  Perhaps these are the problem with my Bit which thinks the Mod wheel is on all the time.
 
> also the finetune knob on the back of the synth should be placed hard left (i think) since it othervise makes the mod wheel lfo work more (or only) in one direction, and that doesn't sound too cool.

I had left it in the center to allow tuning as this unit frequently drifts and needs adjustment prior to each recording.  I'm operating the instrument via MIDI and don't use the mod or pitch wheels in any case.

> it is not easy, and that guitar tuner is quite essential! let me know what you found out while doing this, and how it worked out! i'm not sure i did it 100% correctly myself, but it seems to be in tune now, and both the mod & pitch wheel seem to work properly.

I am using a tuner, but I didn't know about some of those other things, and it occurs to me that I should probably shut off one oscillator at a time or create a few custom patches for tuning purposes, since having two out of tune oscillators confuses the tuner.

Thanks!