How to implement "Who is talking?" feature in webrtc ios application? -


i creating ios application using webrtc video conferencing. want detect talking in peer connection.

to more specific,i want detect audio activity of remote peer connected can detect person speaking.

this can implemented measuring audio level in peerconnection stats. function should study 

- (void)peerconnection:(rtcpeerconnection*)peerconnection didgetstats:(nsarray*)stats

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