Few days ago Chrome 47 has been released.

One major change is WebRTC won’t work without HTTPS.
According internal security policy Chrome browser does not support getUserMedia() for unsecure pages since version 47. So you will not be able to use microphone if your page is not HTTPS.

Chrome warning message:

getUserMedia() no longer works on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.”

 

Take a look at our WebRTC streaming server Web Call Server 5