Playing WAV Files with TMRPCM just buzzes

Using Arduino Programming Questions
1

I am using the TMRPCM library module found at GitHub - TMRh20/TMRpcm: Arduino library for asynchronous playback of PCM/WAV files direct from SD card. Arduino Uno,Nano,Mega etc supported to play a series of wav files.

I have checked the sd card and it is working. I am using a UNO and an ethernet shield to read the sd card. Pin 10 is set high to disable ethernet chip and pin 9 is open and ready to use for PCM.

I have looked at the wav files and they are 8 bit mono 16Khz. I even put some of the wave files from the Github site on the card.

No matter what I do, the sound just buzzes.

I have tried the 2n2222 transistor and speaker. I tried a low pass RC Filter. Still just the same buzz sound no matter what file I play.

Any help would be appreciated. Thanks.

2

pin 10 defined OUTPUT ?
4k7 from pin 9 to base ?
post your code.

3

Just found this in pcmConfig.h I will try this tonight....

  /*Ethernet shield support etc. The library outputs on both timer pins, 9 and 10 on Uno by default. Uncommenting this
    will disable output on the 2nd timer pin and should allow it to function with shields etc that use Uno pin 10 (TIMER1 COMPB).*/
//#define DISABLE_SPEAKER2
4

That was the problem. I had to disable speaker 2 and now it works perfect!