What is your niche knowledge?

SSTF@lemmy.world to Ask Lemmy@lemmy.world – 104 points –
121

You are viewing a single comment

How do I subscribe to acoustic propagation facts?

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.