I am yet to log into the cameras themselves to check.
The cameras and NVRs are all Dahua.
I'll spend some time tomorrow going logging into the cameras themselves to see if the audio is enabled.
Thanks
Do I have to do anything special to get the audio recorded and working for these cameras with the inbuilt mic?
I have hooked them into an NVR with an HDMI out to a TV but I can't hear any audio when live viewing or when playing back recordings.
I have followed the steps in activating the audio...