To improve the quality of the audio when playing a video in a Zoom meeting you need to enable the option to share computer sound. By doing that you'll be broadcasting the audio as it comes out of the video instead of broadcasting the audio that is picked up by your external microphone. Making that switch can eliminate some of the echo and distortion that can occur when sharing a video in Zoom. In this short video I give a demonstration of how to change the audio setting when screen sharing in Zoom.