Difference between revisions of "Underwater speaker"
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Revision as of 11:17, 4 November 2009
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.
