[sdiy] Drum sample playback

[Richie Burnett]

> Yes, it looks like an interesting little board. What is that impressive though?

Simultaneously playing back 32 channels of audio all potentially pitched up by an octave requires a tremendous data rate from the SD card.  It is impressive that the board is able to do this without glitching when it has to handle the filing system overhead and potential nasties like audio file fragmentation on the SD card.

-Richie,