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Blue Man Group


Photo by Barry Willis

While I'm in Vegas for CES, I always try to see one show with my friend Melinda DeNicola of the PR firm Detail in Design; this year, it was Blue Man Group at the Venetian. I'd seen the show some years ago at the Luxor, and it was loud, so I decided to see just how loud this time with my Larson Davis Model 700 SPL meter.

The RMS average sound level (technically called Leq) over the entire hour-and-a-half duration was 92.3dB (A-weighting, slow response), while the highest RMS maximum (technically called Lmax) within a 1-minute interval was 104.5dBA, and the highest instantaneous peak was a whopping 137.5dBA. The sound level exceeded 97.5dBA 10 percent of the time, 91.0dBA 33 percent of the time, and 82.5dBA 50 percent of the time. Fortunately, I had my custom-molded earplugs with me, which cut the levels reaching my ears by 25dB.

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