Trouble Getting WAV Player to play audio from SD Card

iexpress

Hi All,

I am trying to run a quick test to play a wav from SD Card on the Human Interface Board using the Simple IDE example file, but the DAC isn't pumping out any voltage. I also picked up an Activity Board, but it arrived dead and won't even turn on. What a waste of $50.

The code looks like this per the example, but I changed the filename to another wave.
If there is a String datatype, couldn't that work for this example file?

The best option would be to write bytes directly to one of the DAC channels but I can't seem to find any documentation on most of the components of the Parallax boards to get them working properly.
.
Thanks:

int DO = 0, CLK = 1, DI = 2, CS = 3; // SD I/O pins
sd_mount(DO, CLK, DI, CS); // Mount SD card

const char levels[] = {"0000001D.WAV"}; // Set up levels string
wav_play(levels); // Pass to wav player

wav_volume(6); // Adjust volume
pause(500); // Play for 5 s

NWCCTV

If you have hardware issues I would call tech support directly. They are VERY good about resolving issues such as this.

Dave Hein

Have you tried one of the sample WAV files from the Parallax website? It's possible the WAV player doesn't understand the format in your file. Maybe sd_mount or wav_play is failing. Try printing the function return values to see if they are correct.