MATRIXSYNTH: Yamaha DX11 coarse pitch ratios


Wednesday, June 04, 2025

Yamaha DX11 coarse pitch ratios


video upload by Collector Current

"I learned today that the TX81Z / DX11 coarse FM pitch ratios are divided into four sequences. I sat down with a basic bell sound to explore if I can hear a resemblance.

Besides the harmonic ratios 0.5, 1, 2, 3, etc there are 3 other sequences of ratios which are multiples of 1.41 (sqrt(2)), 1.57 (pi/2) and 1.73 (sqrt(3)). Read more at https://blog.jacobvosmaer.nl/0050-fm-...

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