Audio input via microphone is coming out local speaker

I am having the audio input from a microphone come out the local speaker.  This has just started happening.   The zoom software took an update just before this condition started. Also there were some changes to the PC that zoom runs on.  Previously there was no sound coming out of the local speakers when someone was talking into the mic.  

Is there a setting to keep local audio input to zoom via the mic from coming out of the local speaker?

Thanks,

Norm