Playing Sound from Embedded PPT Video via Zoom / Teams

Hello,

I have embedded a video with sound in a PPT, when I display the video, people can see the video but not hear the sound over a Zoom or Teams session!

I have added “System sound” and “what u hear” in the Audio Input section of the Audio (and dialed it up to max), but still the sound is not broadcast. Same if I want to play Spotify… no sound from any other application. They can hear my voice from my microphone no issues.

Can anyone tell me what I am doing wrong - is it Zoom causing the issue? Am using Windows 10.

Thanks

Ian