UnDecima Audio Output from Arduino

I already have one project where arduino outputs audio signal to USB speakers via software 10-bits PWM.  In first, I was not satisfied with quality of sound generated via PWM. There are just not enough speed in arduino engine  to run PWM well.  For example for 20.000 Hz audio, PWM has to be at least 2 – 3 times higher  above normal frequency range, or 40 – 60 kHz. If we multiply this value with 10-bits reso ...

Read more
Scroll to top