Yamaha DX11 Digital Programmable Algorithm Synthesizer

Factory-Set Performance Data (Performance Memories)

When the DX11 was shipped, it came with 32 pre-set performance memories. These data were stored (only) in RAM and would get lost if they were overwritten or if the built-in battery became low and had to be replaced.

Here are the complete data of the performance memories #01 to #32 (converted from downloaded MIDI sysex files).

OSC Frequency Ratios

You may have wondered how the strange-looking oscillator frequency ratios (which can be chosen using the “frequency coarse” and “frequency fine” settings) are defined.

It’s actually all explicable with a (more or less) simple algorithm, which is described here.

Comments, More Information?

If you should have additional information about these topics, please contact me by e-mail <olaf@dtrx.de>.