Thanks to Holger W. for the MicroDexed code: https://github.com/dcoredump/MicroDexed
The sample program plays a short tune (Holst's Jupiter) using MicroDexed engine using the I2S module (PCM5102).
Also, thanks to Len Shustek for the Miditones code: https://github.com/LenShustek/miditones
Note: This only works with 8 notes - more than that the whole thing will stutter.
Suggestions are welcome to improve this with more than 8 notes. In the meantime I'm still finding ways and means to improve the FM synth algorithm.
A slight modification is done on dexed.cpp -> the SSAT instruction is replaced by CLAMPS because ESP32 doesn't have SSAT. Fundamentally, CLAMPS works the same as SSAT.
As this is a beta, the code can be very messy. Again, I'm working to reorganize the code as much as possible.
Notes: Project archived. Due to the MicroDexed code here being very old (Apr 2019), porting to other architectures is difficult. Please check alternative ports: pico2dexed and picodexed.