O.K., so, always by keeping only the osc.1 on “on” position I went to the edit mode to the “pitch bend amount” Guess what?!?!? the more I go up on it, the more my osc.1 que detune (the original pitch goes up) on that patch.
By assigning the same pitch bend amount to all of my patches, I would fix the problem… in a stupid way, but still… I found the trouble.
I knew it wasn’t an hardware issue!
I will defenitly change my OS because this isn’t normal.
Thank you all for helping me out. …Spread the word.
This sounds like the pitch bend zero adjustment is off.
It it would be OK (= zero), there would be no change in pitch when changing the pitch bend range until you actually move the pitch bender in either direction from the center.
Or did you use an external midi source? Try to disconect ALL Midi cables on the Voyagr, and reboot. If it is working fne then, it was just a “left over” pitch bend data by some external Midi gear.
Anyway, check and adjust the zero position of the pitch bend wheel.
If you never opened a synth before, ask a friend or a radio/TV/music technician to do it using the followinf official Moog manual.
It is described like this in the OS 2.1 upgrade instructions:
"Pitch Bend Zero Adjust.
A change has been made to the scanning of the controls, which may result in an offset in your Pitch Bend Zero value. This means you may hear a change in pitch as the Pitch. Bend Amount is increased. There is a simple solution to fix this. It requires an adjustment to a trimmer under the Left Hand Controller (referred to below as LHC). This will not void your warranty AS LONG AS YOU FOLLOW THIS PROCEDURE. It requires only a #2 phillips head and a small (1/8”) flat head screwdriver.
Go to Master Mode and choose “Software Version” press ENTER. Press the CURSOR
switch. You will see a display showing the Voltages from the Wheels.
Note the Value for the Pitch Bend Wheel. Normally it reads Zero – after installing Version 2.1 – this may read 0 to +5. If this value is Zero you do not need to make any adjustments. If it is greater than Zero, proceed.
Remove the two screws on the front plate of the LHC. Place them some place safe.
Remove the Wood Spacer that is under the front of the LHC. Place it with the two screws you removed.
CAREFULLY lift the front of the LHC, pulling slowly away from the Voyager. The corners may be sharp – so be careful not to drop it…Note that the back of the LHC panel rests on a shelf at the back of the LHC cavity. Don’t make any sudden “jerking” movements that would pull on the cabling – the LHC is attached to the cabling going to the main chassis, and the keyboard.
You will see a circuit board underneath with three small Trimmers (potentiometers).
They are labeled “PITCH”, “ZERO”, and “MOD”. DO NOT TOUCH THE ZERO or MOD TRIMMERS OR OTHER PARTS INSIDE THE LHC!!! THIS MAY VOID YOUR WARRANTY!!!
After you have located the PITCH trimmer, with your small flat head screwdriver turn the trimmer slowly counterclockwise while looking at the display. The Pitch Wheel Value should decrease. Decrease until you see –1, then, with the lightest touch, turn the trimmer a tiny bit clockwise until you see the –1 change back to Zero.
8 ) Carefully Lower the LHC back down making sure that the back of the LHC is
engaged on its shelf when the LHC is at rest.
Replace the Wood Spacer and thread the screws back in. Ensure that the LHC
chassis is as close to the side of the Voyager as possible before fully tightening the two screws.
That’s it! If you experience any problems or have questions before trying this,
contact techsupport@moogmusic.com."
This is exact, my pitch bend zero adjustment is off… it is actually at + 2. That’s why the tuning is different from a preset to another: everything depends on the pitch bend amount that is assigned to each of my preset.
It is exacly the cause of my problem. I’m going to bring it to a friend.