UPDATE: I used the Demo code once more and realised in the manual it was because the file needed to be called 0000.wav, if it is a wave file.
I can hear the voice file now however it has really loud static which almost make it inaudible and I get this error message when uploading it to arduino:
avrdude: stk500_recv(): programmer is not responding
How do I solve this? & what command do I need to loop the file?
Thank you