I tried your option #1 and the same results occurred. No audio on the playout stream.
We are using the following:
EMS v1.6.4
CentOS 6.4 x64
Source Encoder – Adobe Flash Media Encoder – H.264/Main Profile/3.1 Level/ 640×360@ 500 Kbps – MP3 Audio, Stereo Channel, Sample Rate 44100, Bit Rate 96 Kbps
Please advise.
Thanks,