Improve Fire HD 10 Microphone

Has anyone managed to improve the Microphone on their Fire HD 10 tablet? I am wanting to have my Fire HD 10 wall mounted and use my Amazon Echo as a bluetooth speaker for it. The mic on the Fire tablet is fairly hit n miss though and often doesnt hear you.
What would be better would be to use my Echo as the mic and have commands send to the Fire tablet like “show me recipes on my Fire tablet” but this doesn’t seem possible.
Anyone in a similar boat or got any ideas? thanks