Low Quality Audio on Video Captures - "Tinny"

[turel 0]

Just installed the Debut Pro version and in the first two video screen recordings, got the lowest quality audio accompanying the video being recorded from the internet. Besides the volume being very low, the sound is Tinny, like it is enclosed in a tube. The system is a Mac, running Mojave OS 10.14.5 My system audio setting is on internal microphone, and in Debut, I used the audio Encoder set to high quality large file size.

Anybody have any ideas?

 

Thanks, the man with the "tin" ear.