All Questions
Tagged with audio technology
3
questions
7
votes
8
answers
4k
views
Is it possible for an airplane on the sky to play a sound so loud it could be heard 50km away?
I have a story where one side of a war takes advantage of psychological warfare, where a plane on an altitude of 60k ft or 15.2km has massive speakers to play horrifying, disturbing sounds recorded ...
- 429
10
votes
8
answers
711
views
Pre-electrical fast long-distance communication using Acoustic Mirrors
It takes a lot of work, but it can be done. The Mongol Yam, a horse-based mail system, is probably the best example that has been done before. But after visiting the local science museum recently, I ...
- 783
4
votes
6
answers
547
views
How can an optical signal be converted into a mechanical/acoustic signal without using electricity?
There are several ways to directly convert acoustic/mechanic signals into optic signals (e.g. opening/closing a shutter, or the acousto-optic effect). Is there any way to do the reverse, without using ...
- 1,404