Underwater speaker
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Revision as of 12:17, 4 November 2009 by Scott (Talk | contribs) (Created page with 'We use an underwater speaker (intended for synchronized swimmers) to measure how sound propagates in different environments. The [http://www.lubell.com/LL9816.html Lubell syste…')
We use an underwater speaker (intended for synchronized swimmers) to measure how sound propagates in different environments. The Lubell system has a maximum output level of 180 dB re 1 microPa @ 1 m. In spreading lab exercises off the Friday Harbor Lab docks, we have measured source levels of about 160 - 170 dB re 1 microPa @ 1 m with a typical sound sample and gain settings.
