New library for PWM playback from SD cards: SimpleSDAudio

Using Arduino Audio
10

I love this, thank you, sounds pretty good, a bit of hiss, so I have to see how to clean it up.

Questions:

  1. could you add an option for 20Mhz too? I got some 20Mhz crystals and ATmega328 chips lying around, wondering if at 20Mhz I could play stereo files better?

  2. I did a PWM output that was nearly 10 bits, with a better audio. Check this out:
    https://github.com/Beat707/BeatVox