Urgent Problem working the TMRpcm library

Projects Programming
1

Hello all,

I'm working on a project to make a SD card MP3 player.

I'm currently testing code to try and get a file to play from the SD card module to my 8ohm speaker that is connected to a digital pin (seems to work fine with melody tutorial).

I've already converted the file to .wav and i've run a reading test on the SD card and module and i can read the files on the SD card through arduino so that works ok.

The big problem that i cannot figure out is why I try to play the song it doesn't work.

Help please!!!

#include <pcmConfig.h>
#include <pcmRF.h>
#include <SD.h>                      // need to include the SD library
#define SD_ChipSelectPin 4  //using digital pin 4 on arduino nano 328
#include <TMRpcm.h>           //  also need to include this library...

TMRpcm audio;   // create an object for use in this sketch

void setup(){

  audio.speakerPin = 9; //speaker pin 9
 
  if (!SD.begin(SD_ChipSelectPin)) {  // see if the card is present and can be initialized:
  return;   // don't do anything more if not
  }
  
}
 
void loop(){  

  audio.play("here_comes_the_sun.wav"); // play "here comes the sun" by the Beatles
  
  
}
2

I never used that library, but the first thing that I will try If I had in your place will be:

(...)
void setup(){

  audio.speakerPin = 9; //speaker pin 9
 
  if (!SD.begin(SD_ChipSelectPin)) {  // see if the card is present and can be initialized:
  return;   // don't do anything more if not
  }
  else {
     audio.play("here_comes_the_sun.wav"); // play "here comes the sun" by the Beatles
  }
}
 
void loop(){  
}