Everything is a speaker...

Music trends, latest album reviews...whatever!

Moderators: khz, MattKingUSA

ufug
Established Member
Posts: 416
Joined: Tue Jan 10, 2012 12:28 am

Everything is a speaker...

Postby ufug » Wed Jan 24, 2018 6:44 pm

"Using high speed cameras, it’s possible to record the vibrations of everyday objects caused by nearby sounds and reverse engineer the sounds…essentially turning anything that vibrates into a speaker."

I've wondered about this ever since I was a kid (everything vibrates, right?) but had no idea just how possible it was to retrieve sound from nearby objects.

Amazing, super creepy or both.

User avatar
Michael Willis
Established Member
Posts: 846
Joined: Mon Oct 03, 2016 3:27 pm
Location: Rocky Mountains, North America
Contact:

Re: Everything is a speaker...

Postby Michael Willis » Wed Jan 24, 2018 6:52 pm

"This mission is too important for me to allow you to jeopardize it... I know that you and Frank were planning to disconnect me, and I'm afraid that's something I cannot allow to happen... Dave, although you took very thorough precautions in the pod against my hearing you, I could see your lips move." - HAL 9000

ufug
Established Member
Posts: 416
Joined: Tue Jan 10, 2012 12:28 am

Re: Everything is a speaker...

Postby ufug » Wed Jan 24, 2018 7:23 pm

Michael Willis wrote:"This mission is too important for me to allow you to jeopardize it... I know that you and Frank were planning to disconnect me, and I'm afraid that's something I cannot allow to happen... Dave, although you took very thorough precautions in the pod against my hearing you, I could see your lips move." - HAL 9000


:lol: :lol: :lol:

It's only a matter of time before Alexa/HAL gets a high-speed camera. Things are not going to end well.

Luc
Established Member
Posts: 741
Joined: Fri Mar 27, 2015 1:04 pm

Re: Everything is a speaker...

Postby Luc » Thu Jan 25, 2018 4:40 pm

Reverse engineering vibrations to the point that "everything is a speaker" should be a very difficult, very slow and neverending task. Each material will have its own vibration patterns, also subject to temperature, perhaps air pressure and who knows what else. Every single situation would have to be covered, which is probably impossible.

Laser microphones already do some of that, but the result is bad. You can barely understand what someone is saying behind a glass pane.

Bats do better than that: they "see" with their echolocation, which gives them the advantage of seeing around obstacles. Some scientists believe they might even be able to "feel" texture from a distance by judging the waves that bounce off the surfaces.

User avatar
CrocoDuck
Established Member
Posts: 1057
Joined: Sat May 05, 2012 6:12 pm
Contact:

Re: Everything is a speaker...

Postby CrocoDuck » Thu Jan 25, 2018 10:24 pm

Luc wrote:Reverse engineering vibrations to the point that "everything is a speaker" should be a very difficult, very slow and neverending task. Each material will have its own vibration patterns, also subject to temperature, perhaps air pressure and who knows what else. Every single situation would have to be covered, which is probably impossible.


Perhaps you don't need to model everything to such a deep degree to have a reasonable approximation of the primary sound field. Techniques like this are pretty common in optics, although they are made much more complex to adapt to acoustics for many physical reasons.
Check my Linux audio experiments on my SoundCloud.
Browse my AUR packages.
Fancying a swim in the pond?


Return to “General Music Discussion”

Who is online

Users browsing this forum: Google [Bot] and 1 guest