Re: [microsound] home made plate reverb

["pelagius pelagius" <pela_gius@xxxxxxxxxxx>]

>From: Tim Kugel <guitardo@xxxxxxxxxxx>
>so the piezo could  transmit the signal AND a different one pick it up??
>Does that involve the same piezo?

Yes, like a speaker or microphone a piezo works both ways.  But it's not the 
same piezo, you need 2.  Just hook the 2 leads coming out of the piezo up to 
a 1/4 jack or something.  Then send a signal into one piezo and take the 
output of the other piezo through a preamp into your recorder.

>I was wondering about how the mics worked with different plates...I knew
>they had a speaker and mic and dead acoustics...but wasn't the glass
>quite thck?

If you're talking about a plate reverb, they use a steel plate that's fairly 
large (say 3 feet tall by 6 feet long or something) but pretty thin and it's 
suspended to be hanging inside of a box.  There was a great DIY plate reverb 
article in tapeop magazine a while back.  The plan used something other than 
a piezo to excite the plate though.  It was some kind of vibrating driver I 
think.  The guy who wrote it had a website with the info + kits he was 
selling but the site seems to be down now.  I've played around with small 
thin pieces of metal and you can do some fun stuff but it's certainly not a 
reverb sound.  More like tinny flexing metal sounds.  Piezos taped to a 
tuned drum head work quite well though.

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