HTML5 audio recording not woorking in Google Nexus

问题

I want to use HTML5 getusermedia to record audio, play back and save to server. I am trying with Google Nexus (Android 4+) and Google Chrome 29. Is it possible? When I try the codes I got from net, it asks permission to record using microphone and using the phone, I save a wav file. But no sound on playing this. The same site works from chromium browser in my PC. Am I doing anything wrong? or is it that audio recording is not actually working as it claims?

Thanks