Absorption coefficients, effect of difference in, 43
Air velocities at registers and grilles, 301
Articulation index and degree of speech privacy, 321
Articulation testing, word lists for, 400-401
Cavity insulation, effect on drywall STC from, 229
Change in sound level, effect of, on loudness, 21
Classification of rooms for noise control, 272
Concert halls, rectangular, 154
Decibel scales for sound intensity, pressure, and power, 36
Double-wall constructions, TL improvements for, 214
Mechanical equipment noise level data, 315
Metric conversion factors, 396-397
Modifications to floor-ceiling constructions, STC and IIC improvements from, 252
Modifications to walls, STC improvements from, 230
Music listening conditions, influence of acoustical properties of rooms on, 151
Noise criteria (NC) numerical values, 402
Noise criteria (NC) for rooms, 233
NICs:
for health care occupancies, 244
for music rooms, 242
Noise isolation class prime (NIC') ratings for ceilings, 339
Noise level data, 34-35
for common sounds in dBA, 13
Perforation sizes and spacings for transondent facings, 74
Ray diagrams, time delay gap conditions for, 96
Reverberation time, optimum, 64
Room criteria (RC) numerical values, 402
Sound-absorbing treatment for rooms, 79
Sound absorption data for materials and furnishings, 52-54
Sound-reinforcing systems, characteristics of basic, 378
Speech privacy factors, 323
STC data:
for door constructions, 205, 220
for dwellings, 245
for gypsum wallboard (GWB) constructions, 204-205
for masonry constructions, 204-205
for offices, enclosed, 334
for schools, 241
for window constructions, 205, 223
TL data for common building...
Copyright M. David Egan 2007 under license agreement with Books24x7
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