Answer via video UX
How do we design a UX element or workflow on a browser or an app that lets a user answer a fixed question via webcam video or audio instead of text? User can replay what she recorded and re-record if she doesn't like it. User can be 20-60 age range. Some of these users aren't tech savvy but are open to get trained via app itself.
Understand that you are currently in the user research phase, just like to point out that the way users respond via audio only and video (with or without audio) are very different. And typically people’s attention span on receiving answers via audio or video are less than 5 seconds because audio and visual cues work based on short term memory usage of users. So with this in mind if you need to receive audio and visual replies on the application, I’d suggest using a “hold button and record” kind of design, like what the boomerang app/ zoom unmute temporarily function does. This allows users to be conscious of the time they’re talking to answer and allows viewers to digest short audio-visual replies effectively.