it has been two years - i cannot find the calibration. can anyone help me ?

is it still not implemented or maybe i cannot find this?

@bovic solved it, just include:
#include <M5Unified.h>

instead of
#include <M5Core2.h>

and all is good :)

seems speaker is not yet in Arduino?

it has been two years - i cannot find the calibration. can anyone help me ?

is it still not implemented or maybe i cannot find this?