So a lot of people are aware of active noise cancellation that you find in headphones nowadays, that works in large scale as well. The first time that type of technology was used was in the greatful dead’s wall of sound. The problem is it’s expensive to do large scale.
How do I subscribe to acoustic propagation facts?
Just say it out loud. He’ll find you.
Confirmed they are a bat.
Just message me, you’ll get some!
So a lot of people are aware of active noise cancellation that you find in headphones nowadays, that works in large scale as well. The first time that type of technology was used was in the greatful dead’s wall of sound. The problem is it’s expensive to do large scale.