Kai Ming Li School of Mechanical Engineering. Research in Environmental Acoustics Ray W. Herrick Laboratories. Current Research Areas. Physical Acoustics Propagation of sound waves Physical Phenomena: Diffraction, Reflection, Refraction, and Scattering
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Research in Environmental Acoustics
Ray W. Herrick Laboratories
Diffuser Arrangement I
Diffuser Arrangement IISelected Recent Results
Comparisons of measured noise level attenuations in a “T” shape corridor with and without diffusers (QRD type). The plots show sound pressure level (SPL) reductions with referring to 1m free field levels in 1/3 octave bands of (a) 800 Hz, (b) 1000 Hz and (c) 1600 Hz.