…to cleaning up the videos. I was trying all types of filtering…trying to hear what was being said in the videos. Nothing was working. Then (light bulb) I heard the recent Japanese Missile Warning system being announced…and heard how the echo of the loudspeaker sounded much like the distortion on the videos. https://www.youtube.com/watch?v=avy3hnWaNLI
Now I am searching for a good audio/video editing solution to remove echoes from audio/video…so I can hear what is being said.