No Audio in the stream

1. possibility:

Maybe Encoder does not detect the Audio input. Then, please connect the source to a Monitor/TV set to check whether both Video & Audio is ok.

2. possibility:

Maybe the source device output a "special" audio format and then Encoder does not recognize. For example, the frequently seen audio format is 48khz, 44.1khz, 32khz.

3. possibility:

"Encode" error. Then, maybe we can have a try reboot Encoder and then restart to "encode".

4. possibility

Decoder/Media Player does not support to decode such "audio codec". For exmaple, if Audio codec is set to AAC, but some older generation Decoder supports to decode MP2/MP3 audio codec only and does not support AAC.

More detailed, please check the specification of the Decoder.