Can the Sound of Brushing Make it More Satisfying?

Integrating this into a brush would be AMAZING. Researchers recently found that increasing aural feedback while brushing makes it more satisfying, and also mitigates issues with brushing too hard -- a common brushing mistake.

http://www.dentistryiq.com/articles/2015/12/new-research-the-sound-of-brushing-can-increase-its-appeal.html