Audio Codec Channel not Supported

[ibc (Iñaki Baz Castillo)]

@mayank

"clockRate": 48000,
			"mimeType": "audio/opus",
			"parameters": {
				"minptime": 10,
				"useinbandfec": 1
			},
			"payloadType": 111,
			"rtcpFeedback": [{
				"parameter": "",
				"type": "transport-cc"
			}]

Well, this is the problem. Opus always announces 2 channels, no matter the audio is mono or sgtereo or surround or whatever. This is how Opus negotiation is defined in its RFC. So fix your client app to properly announce channels: 2 in the Opus codec.