Re: Re:Re: Information on contact microphones

["Jesse Kudler" <jkudler@wesleyan.edu>]

I knew that a speaker and a mic were basically the same thing reversed, but
isn't a contact mic different from a dynamic mic?  Contact mics don't pick
up sounds, they pick up vibrations.  That's why they have to be touching 
the
mic'ed object and why they can't feed back.

-Jesse

>That's right, a loudspeaker and a dynamic mic are essentially identical in
>operation,
>they're just used in opposite directions.
>A walkman headphone contains 2 tiny loudspeakers.
>Also a 'contact microphone' is (essentially) only an 'ordinary' microphone
>which
>is placed in contact with something.
>........and .......quite often walkman headphones use screened cable (for
>looks).
>........and........they're not too big.
>
>So basically a walkman headphone is two contact mics.
>......Try it.
>                      Andy Butler
>
>