Sound To Electricity

[wings]

@ Dream

thanks for the results of your work. great job.

i would like to try this with a [edit] Microphone-type device designed to collect sound. while a speaker should in theory "work"... it is engineered to create sound. (reverse of what we're wanting to do here). and so i do not think it can harness the full power of an incomming wave.

that being said, i will dismantle a mic  and perform similar experiments. soon as i replace my meter ( testatika conversion gone bad...).

IMO the solution is to use different pipes with different resonances

http://home.cc.umanitoba.ca/~krussll/138/sec4/resonanc.htm

if you put the pipes in the wind can produce energy and pleasant sounds

[wings]

http://www.sarahtulga.com/Glock.htm

[sm0ky2]

i brought this idea to a fellow engineer who designs sound-rooms, recording studios, theaters, ect.

what he said was intreresting, so i thought i would share it with you guys.
basically, the "sound-proof wall" is a wall segment that is suspended at the top and the bottom, so it is free to move back and forth.

with a "fixed" wall, soundwaves whos wavelength is longer than the span of the room ,will travel right THROUGH the wall!!

with the sound-proof wall, soundwaves strike the wall, and cause the suspended wall to MOVE!. absorbing 100% of the sound.

if we were to attach a magnet or generation coil to the moving wall, this could be used to absorb a great deal of the ambient noise in a given environment, and at the same time generate electricity, by placing one of these walls between the source of the sound and the intended "quiet zone"
i.e. alongside a highway.

heres my sketch of what these walls are supposed to look like.
( that is if you can get past my horrible artwork, and see what it is showing)

my main concern is the total mass of the moving wall,. for this application, the wall needs to be very light-weight, so most of the energy is applied to the coils/magnets.

[DreamThinkBuild]

Hi Smoky,

Testing some more I find a lot better results with the piezo-speaker than any of the regular speakers or microphones I have.

This company sells piezo film, which could be suspended as a panel.
http://www.imagesco.com/catalog/sensors/piezo.html

It is thin and lightweight so it might work.

[IotaYodi]

Piezo was my first thought on this. Coiled tubing with water or crystals within an acoustic resonance chamber,think acoustic guitar,coupled to the Schumann resonance somehow might give multiple overtones. Water or liquid is a better conductor of sound than air. Some type of JT scheme might even work some way.