https://www.georgetown.edu/sites/www/files/Hidden%20Voice%20Commands%20full%20paper.pdf https://www.georgetown.edu/sites/www/files/Hidden%20Voice%20... This is

https://www.georgetown.edu/sites/www/files/Hidden%20Voice%20Commands%20full%20paper.pdf https://www.georgetown.edu/sites/www/files/Hidden%20Voice%20... This is a little different, it's about audible commands that don't sound like speech to a human.