Closed dmadison closed 7 years ago
Not a lot of maintenance / contributions from myself for quite a while, but there's always a bit of activity.
The microPeriods are the period (time between wave peaks) of the MIDI note in microseconds. I used this table to determine the frequency for a particular note and followed this formula:
(1 / <frequency>) * 1000000
or just 1000000 / <frequency>
At MoppyPlayerOutput.java:84 , we're essentially dividing this period in half (so that the ticks happen twice as fast) because in the Arduino code each tick only toggles the state of the pin. In other words, we send an ON
and an OFF
once per calculated period.
Awesome! Thanks for the quick response, that's all very clear.
I'm not sure if the repository is still being maintained, but I'm working on some expansions of the Moppy code and I'm wondering: how were the "microPeriods" for the notes determined? Is there a formula you used?
Thanks for the help!