For Mega, 44 (and GND) for Speaker, 50-51-52 (MISO, MOSI, SCK) and 4 (SD_CS) for Micro SD.
My PCM (Wav) file specifications are like this;
8 bit (Unsigned), 16000 Hz, Mono. If I can use Simple SD Audio, actually there is not a problem, but i can't.
How i can get this sound?