MATRIXSYNTH: Nozoid CV precision demonstration

Wednesday, January 16, 2019

Nozoid CV precision demonstration

CV precision demonstration from Nozoid on Vimeo.

"This video is a proof that the nozori CV are accurate enough to track a pitch over 10 octaves.

What you see in this video is :

- a VCO on the left of the rack that is used as a reference frequency. It output a saw waveform, displayed on the bottom of the oscilloscope screen.

- a 2nd VCO, in the middle of the rack with a frequency controlled by a SQ-1. The SQ-1 is configure to play only 1 step, with a CV range of 1 octave. The VCO output a square wave, displayed on the top of the oscilloscope screen.

- both oscilloscope voice are synchronized to VCO 2: when they are not in sync the VCO 1 voice move quickly.

- at 0'27", I tune the VCO 1 to by in sync with VCO 2

- starting at 0'39", I change the note on the SQ-1 : the 2 VCO are not at sync anymore

- the synchronisation is back at 0'47" when I put back the correct note in the SQ-1

- latter in the video, I play more with the SQ-1 pitch, going up and going down. When back in the middle, the 2 VCO are in sync.

This prove the great precision of the CV control and the absence of hysteresis.

With 12 bits controlling 10 octaves, the precision of a bit is about 3 cents."

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