372595736

point excitation, 402, 475, 477 Poisson's ratio, 27, 193, 197, 203-206, 260, 355, 366, 387, 436, 472, 473, 716, 841 point impedance, 222, 224, 225, 232, 400, 475, 476, 502, 506, 509, 512, 539, 540, 571

porous materials, 119, 120, 128, 129, 674, 705, 784

powcr spectral density, 27, 801 presbycusis (hearing loss with age), 36, 61 privacy, speech, 19, 31,92, 109, 112, 122, 124, 329, 330, 334, 471 pure tonę, 5-7, 30, 159, 622, 783

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rumbie noise, 743, 801-804

Sabinę reverberation equation, 281, 300, 681,682

sandwich panel (piąte), 267, 439-445 self (regenerative) noise, 759, 761,780, 782 sheet metal, 116, 326,410, 734, 755,757, 768, 776, 778, 792, 797-802 shock wave, 82 signal analysis, 25

silencers (mufflers), 111, 114-116, 744,751, 755, 775, 776, 780-787, 802, 807 sine wave, 5, 20, 34, 140, 143, 145, 146,

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