The legend behind the headphones' creation is that founder Amar Bose was dissatisfied with the airline-issue headphones provided on a flight he took in 1978. However apocryphal, he is said to have written down calculations before landing, and those plans led to the first noise-canceling headphones that came out years later.  Search “color noise throw” from Improved Noise-Canceling Headphones by Bose

Search “color noise throw”

The legend behind the headphones' creation is that founder Amar Bose was dissatisfied with the airline-issue headphones provided on a flight he took in 1978. However apocryphal, he is said to have written down calculations before landing, and those plans led to the first noise-canceling headphones that came out years later.