Octasonic Frequently Asked Questions
When I run the Ultrasonic Pi Piano I hear an octave being played but then nothing happens when I move my hands over the piano
This is almost always due to the project being wired incorrectly. Please follow the instructions again and verify each connection. Also be sure that you have enabled SPI on the Raspberry Pi. The project cannot work if SPI is not enabled.
How would you get the octosonic setup to use pre-recorded voices instead of the midi?
I would start by reading the article Making a Simple Soundboard with Raspberry Pi which shows how to play sound clips based on a GPIO input using a Python script. It should be relatively easy to modify this code to use the Octasonic Python Library instead. There would be no need to run Fluidsynth in this setup.