Hallelujah!  I figured it out.  I had to go into my CHROME settings to figure it out.  While logged into Canvas, look at the top of your browser.  See the 3 little dots at the top right?  Click on them.  Then...click on settings.  This will open up a new browser.  Scroll down until you see "site settings."  Click on it.  It should open up so that you see the Canvas website listed. Click on the arrow to the right to access permissions for Canvas.  You can then ALLOW microphone and camera to be accessed by this website.  TA - DA!  I hope this explanation was clear and helpful.

Jael