Analogue Solutions Polymath - Manual (Page 10)

Polymath
10 Initial Tuning | Analogue Solutions
INIT IAL TUNING
Once the MIDI and audio connections have been made it may be necessary to tune in the
VCOs to the rest of your music set-up. Allow a five minute warm up time.
First set up the controls of Polymath to make a simple sound. It is usually best to leave the
VCA at ON. Turn VCO2, 3, & 4 to zero volume so you can only hear VCO1.
Centre all the VCO Tune controls, and also the MASTER TUNE and DETUNE knobs.
Ensure no other CVs affect VCO pitch. For example, ensure that the Step Sequencer pitch
CV level is at zero.
Play, say, middle C on the keyboard. Using a digital keyboard as a reference, adjust the
Tune of VCO1 until it plays in tune with your reference.
Finally, turn up VCO2 so both VCOs can be heard. Using the tune controls of VCO2, tune it
to VCO1.
VCOs 3 and 4 can then also be tuned to VCO1