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RTSP Audio didn't stream (WowzaStreamEngine 4.7.3)

I want to re-stream to HLS by creating a stream file by receiving RTSP stream from the IP CAM being configured.

Video streams well but audio does not.

Attach the audio launch information of my IP CAM.


audio captionfilter: (alsasrc buffer-time=20000) audio/x-raw,format=S16LE,layout=interleaved,rate=44100,channels=1

encord : (avenc_aac) audio/mpeg,base-profile=lc,channels=1,mpegversion=4,stream-format=raw

pay: rtpmp4apay max-ptime=20000000 name=pay1 pt=97


What is the problem?