Go to Edit > Preferences > Audio Hardware and make changes. Default Input at "none" seems to work. The choices will be different depending on your computer. Try them all until it works.
If you want an Adobe employed specialist, use the Help Menu and select Online Support. It will take you to a website. In the lower right corner is a "chat" icon. Click on it. Sometimes responce is quick, sometimes slower. They can remotely run and fix your computer.
It spontaneously resolved after I tried everything (audio troubleshooters, reboots, disabling speaker properties unnecessarily) and I finally found the chat icon (the cookie banner was hiding it). Thanks.
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