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I need to combat noise drowning out exhibits.

Has anyone experience with Smart Amps, that raise the level of sound in
exhibits by measuring ambient sound levels?

I found
http://www.stoplisten.com/pdfs/smartampv2_instructions.pdf

but there maybe others. Any thoughts or experiences?

Martin

-- 
Martin Weiss, PhD
Science Interpretation, Consultant
New York Hall of Science

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