I have used below command to record the sound in wav format for 50 seconds.
"alsa_aplay -C -t wav -d 50 record.wav"
and trying to play the record.wav file using the command
"alsa_aplay record.wav "
I could able to hear only the noise.
# alsa_aplay record.wav
Playing WAVE 'record.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
Sudheer, please reply to original thread instead of creating a new one every time.
The subject tells that you are trying to play an mp3 but your mail indicate that it is a wav file.
Anyway, are you sure that it recorded the sound correctly? Did you tried playing “record.wav” on a PC?
I have not experimented much with ALSA, but these are some of the common ways you can think of before posting.