[microsound] contact speakers - bone conduction

[pablo sanz]

hello list,

Maybe somebody can help me with this project I´m working in with a  
friend...  we are doing experiments with bone conduction and tactile  
sound and we are still trying to find some small speakers without  
membrane that could be suitable for this. There are a lot of  
commercial 'bonephones' but we still don´t figure out which specific  
speakers do they use and we are not able to find small tactile sound  
transducers in the components shops... just bigger things like Clark  
Synthesis´ transducers for home theaters, drum seats and that kind of  
stuff.

We also experimented feeding piezo drivers (stepping up the voltage  
with an audio transformer, following Nic Collins instructions) and  
they sound quite loud, but that seems more suitable to resonate  
objects than for this project. What we are trying to do is to build  
some sort of wearable interface with several speakers attached to the  
skull and will test other parts of the body too, the idea is that they  
don´t sound too much outside, also getting a nice frequency range  
would be cool.

any help will be very much appreciated. thanks.

best,

-=-=-==------==-=----=---=-=-=-----------=---=-=---=-----
Pablo Sanz Almoguera
Groenewegje 133 - 4, 2515LR The Hague
+31 (0) 643 048 978 :: 20020 at live.co.uk (msn)
http://www.20020.org
http://www.mediateletipos.net
http://www.artesonoro.org