Selecting some options there talks about general audio feedback from Siri, which seems like it could be beyond just voice. I haven't really played around with those options as much aside from seeing them there, and I'm not sure if they are the same in iOS 10 as they are in iOS 9, so figured might be worth checking something there (or perhaps at least under Siri settings in general). But it could certainly very well be that none of the things there might be helpful with this.