Can you check the codec info with something like VLC to see if the audio is there?
Does audio work when playing the clip in UI3?
Does audio work when playing the clip in UI3?
With the HTML5 player in Firefox 61 I get the "click anywhere to begin" message but it won't go away when I click. I see the screen behind
refreshes but the message stays. It's UI v40 with 4.7.6.8 Blue Iris.
Thanks for reporting. The next UI3 update (version 42) will have this fixed.
I had to manually navigate to about:config and set media.autoplay.enabled to false in order for my Firefox to bring up that message in the first place. You could set that = true to allow video to auto-play without user-input.
Since this is Firefox, you may actually be better off with the JavaScript player. Firefox does a poor job handling low latency HTML5 video.