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| Ïîèñê ïî óêàçàòåëÿì |
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| Beranek L.L. — Acoustics |
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| Ïðåäìåòíûé óêàçàòåëü |
Absorhent mufflers 359—360
Absorption coefficients see "Coefficients"
Absorption units, English 305
Absorption units, metric 305
Absorption units, sabins 305
Absorption, in air 307—311 345—346
Absorption, in materials 299—305
Acceptable noise levels, auditoriums 425—427
Acceptable noise levels, buildings 427
Acceptable noise levels, office spaces 423—425
Acceptable noise levels, residential areas 421—423
Acoustic compliance 35 65 128—130
Acoustic components 116—143
Acoustic filters 143 353—360
Acoustic generators 66—67
Acoustic impedance 11
Acoustic inertance see "Mass"
Acoustic mass 63—64 131—133
Acoustic materials in ventilation systems 352—354 356—359
Acoustic materials, carpets 300
Acoustic materials, draperies 300
Acoustic materials, fabrics 300
Acoustic materials, for duct lining 352—354 356—359
Acoustic materials, for engine test cells 356—360
Acoustic materials, mounting conditions 303—304
Acoustic materials, perforated facing 303
Acoustic materials, seats 300—301
Acoustic materials, thickness 302
Acoustic materials, tiles 302—304
Acoustic ohm 11
Acoustic resistance 65—66
Acoustic responsiveness 65—66
Acoustic structures 349—360
Acoustic transformers 139—142
Acoustic, definition of 9
Acoustical circuits 62—69
Acoustical elements 62—69
Acoustical Society of America v
Acoustical standards 8 15 372 396
Acoustical, definition of 9
Adiabatic alternations 19
Adiabatic, definition of 4
Adiabatic, gas law 19
ADP (ammonium dihydrogen phosphate), general 164—174
ADP (ammonium dihydrogen phosphate), microphone 363
Age effects on hearing 390
Air absorption 307—311 345—346
Air losses 308—311 345—346
Air, specific heat of 19
Air-gap energy 200
Aircraft noise 342 344
Altec 21-C microphone 158
American Standard Association 8 15 372 396 400
American Standard Association, sound-level meters 15
American Standard Association, terminology 8
Ammonium dihydrogen phosphate see "ADP"
Amplification systems, speech see also "Horns" "Loudspeakers" "Microphones"
Amplification systems, speech, behavior indoors 407—412
Amplification systems, speech, behavior outdoors 407—410
Amplification systems, speech, cellular horns 107—108
Amplitude, movement of eardrum 389
Analogies 47—90
Analogies, conversion of 77—78
Analogies, direct 52
Analogies, impedance-type 52
Analogies, inverse 52
Analogies, mobility-type 52
Analogies, rotational 67
Analogous impedance 11
Analysis of sound, frequency analyzers 333—334 362—365
Anechoic chamber 22 229 278 394 409
Architectural acoustics 298—331 417—429
Array, curved 100—108
Array, linear 96—97
Array, two simple sources 93—90
Articulation index 408—412
Articulation scores 411—415
Attenuation coefficient 307—311
Attenuation constant, air 307—311
Attenuation of sound, air 307—311 345 346
Attenuation of sound, barriers 348
Attenuation of sound, doors 349
Attenuation of sound, ducts 350—353
Attenuation of sound, mufflers 353—360
Attenuation of sound, structures 324—330
Audibility threshold 394—396 408
Auditoriums, echocs 427—428
Auditoriums, examples 322—324
Auditoriums, mean free path 298—299
Auditoriums, noise 427—429
Auditoriums, psychoacoustic criterion 425 429
Auditoriums, reverberation time 300—311 425—426
Auditoriums, room constant 312—313 425—426
Auditoriums, sound absorption coefficients 299—305
Auditoriums, sound decay rate 304—306
Auditoriums, sound energy density 313—314
Auditoriums, sound pressure levels 314—322
Auditoriums, speech intelligibility 406—417
Auditoriums, transmission through walls 324—331
Auditory canal 390
Automobile power levels 339
Average absorption coefficient  , definition 299—305
Average absorption coefficient , graphs 302—304
Average absorption coefficient , table 300—301
Axis, principal 112
Axis, reference 112
Background noise, effect on readings 374
backward-traveling wave 288—289
Baffle constants 231—232
Baffle, bass-reflex 239—258
Baffle, closed-box 114 211—228
Baffle, definition 101 184 209
Baffle, finite, flat 210—211
Baffle, infinite 210
Baffle, measurement of 231—232
Baffle, parallel, absorbent 356—359
Bandwidths, analyzers 333—334 362—365
Bandwidths, critical 334 365—366 393—394 406
Barium titanate, general 164 167
Barium titanate, microphone 174—177 363
Barometric pressure, atmospheric 9
Barometric pressure, corrections in rooms 315
Barriers 348
Basilar membrane 390—391
Bass quality, cardioid microphone 182
Bass quality, explanation 38—39 148—149
Bass quality, gradient microphone 148—149 178
Bass quality, ribbon microphone 148—149 178
Bass-reflex baffles 239—258
Beam width 92 108
Bender Bimorph 170—173
Bends in horns 278—279
Bends, in ducts 351—352
Bessel functions 118—119
Beta ( ) operator 87—88
Bimorph 170—173
boundary conditions 29
Box, bass-reflex 239—258
Box, closed 114 211—218
Box, open-back 211
Box, rick partitions 328—329
Box, vented 239—258
Building materials, absorption coefficients 300
Building materials, densities 328
Building materials, transmission losses 328—329
Cabinet for loudspeakers, bass-reflex 239—258
Cabinet for loudspeakers, closed-box 211—228
Cabinet for loudspeakers, open-back 211
Cables on microphones 371
Calibration of transducers, auxiliary transducer 383—387
| Calibration of transducers, free-field 382—385
Calibration of transducers, general equation 381—382
Calibration of transducers, pressure 385—387
Calibration of transducers, reciprocity method 377—387
Calibration of transducers, self-reciprocity 382—383
Calibrator for microphones 363
Canal, ear 390
Capacitance, microphones 169 172 173 175
Capacitor microphones, construction and properties 157—164
Capacitor microphones, dynamic range 157
Capacitor microphones, electrical impedance 157 160—161
Capacitor microphones, general relations 72—75
Capacitor microphones, humidity effects 157
Capacitor microphones, mechanical impedance 157 160—161
Capacitor microphones, temperature effects 157
Cardioid pattern 150 181
Cavity with holes 136—137
Cavity, closed 128—129
Cellufoam 220
Cellular horn 107—108
Ceramic microphone 174—177
Characteristic impedance 11 36
Charles — Boyle gas law 18
Churcher — King contours 400
Circuit for closed tube 130
Circuit for filter, acoustic 354
Circuit for loudspeaker, direct-radiator 187 201
Circuit for loudspeaker, horn 262
Circuit for loudspeaker, in bass-reflex baffle 241
Circuit for loudspeaker, in closed-box or infinite baffle 213
Circuit for microphone, capacitor 162
Circuit for microphone, moving-coil 155
Circuit for microphone, piezoelectric 168
Circuit for microphone, ribbon 179
Circuit for open tube 130
Circuit for radiation impedances 117 121 124—126
Circuit, for acoustic transformer 139
Closed tube 28—35 128—129 see
Closed-box baffle 114 211—228
Cochlea 390
Cochlear partition 390
Coefficients, absorption, of building materials 300
Coefficients, absorption, of materials 299—305
Coefficients, absorption, of sound 299—304 see
Coefficients, attenuation, m 307—311
Coefficients, coupling 72n. 230—231
Coefficients, noise-reduction 303
Coil, voice, construction 184
Coil, voice, design 195—198
Compensating networks 401
Complex conjugate 44n.
Complex exponential function 25
Complex impedances 11
complex magnitude 26
Complex numbers, convention for 11 25—28 44n.
Complex ratio 11
Complex solutions 25—28
Complex sounds, analysis 362—365
Compliance, acoustic 35 65
Compliance, acoustic, special 35
Compliance, closed-box 217 221—222
Compliance, closed-tube 128—129
Compliance, diaphragm 130 215 230
Compliance, jug 130—131
Compliance, measurement 230
Compliance, mechanical 53—54
Compliance, short-tube 35 129
Compliance, suspension 215 230
Components, acoustic 116—143
Compound-wall constructions 329
Compressibility of air, cavities 35 128—129 217 221—222
condenser microphones see "Capacitor microphones"
Cone, solid, in space 112 183—184 see
Conical horn 276—278
Connector, exponential 141—142
Constants, baffle 231—232
Constants, barometric-pressure 9
Constants, characteristic impedance 11
Constants, damping 205 292 307
Constants, density-of-air 10
Constants, diaphragm 214—215 228—231
Constants, flare 270
Constants, gas 19
Constants, loudspeaker 228—231
Constants, port 240—241
Constants, power-available generator 190
Constants, reciprocity 381
Constants, reference quantities 13—14
Constants, room 313 316 425—427
Constants, speed-of-sound 10
Continuity equation 20
Conversion tables see also "Tables"
Conversion tables, decibel 455—463
Conversion tables, factors 464—467
Conversion tables, mobility-to-impedance analogies 51
Conversion tables, octave-band levels, to critical-band levels 306
Conversion tables, octave-band levels, to spectrum levels 364
Conversion tables, units 464—467
Couplers for primary calibration 385
Couplers, exponential 141—142
Coupling coefficient 72n. 230—231
Course organization vii
Criteria, psychoacoustic 417—429
Criteria, psychoacoustic, auditoriums 425—427
Criteria, psychoacoustic, damage-to-hearing risk 416—417
Criteria, psychoacoustic, noise, control of 427
Criteria, psychoacoustic, noise, in buildings 427
Criteria, psychoacoustic, noise, in office spaces 423—425
Criteria, psychoacoustic, noise, in residential areas 421—423
Criteria, psychoacoustic, reverberation time 425
Criteria, psychoacoustic, room constant 425—427
Criteria, psychoacoustic, speech interference levels 419—420
Critical bandwidths 334 365—366 393—394 406
Critical frequencies of baffles 244—247
Cross-sectional shapes, horns 279—280
Crystal microphones, applications 165 177
Crystal microphones, barium titanate 174—177
Crystal microphones, Bimorph 170—173
Crystal microphones, crystal shapes 164—166
Crystal microphones, diaphragm-actuated 176—177
Crystal microphones, direct-actuated 176—177
Crystal microphones, distortion 173
Crystal microphones, dynamic range 165
Crystal microphones, electrical impedance 165
Crystal microphones, equivalent circuit 168
Crystal microphones, expander plate 166—170
Crystal microphones, frequency response 165
Crystal microphones, general relations 72—75
Crystal microphones, humidity effects 167
Crystal microphones, hydrostatic operation 166—168 170 177
Crystal microphones, internal resistance 173
Crystal microphones, resistivity 173
Crystal microphones, self-noise 173—174
Crystal microphones, shear-plate 165—166
Crystal microphones, stability 168—177
Crystal microphones, strength 167
Crystal microphones, temperature effects 168—169 172 174
Crystal microphones, tests for normalcy 174
Curved-line source 106—108
Cutoff frequency 271 362—364
Damped vibrations of rooms 291—295 304—311
Damping constant, loudspeakers 205
Damping constant, rooms 292 307
Dashpot 55
Data recording 374—375
Deafness 396—397 416—419
Decay constant, loudspeakers 205
Decay constant, rooms 292 307
Decay curves for sound in rooms 293—294
Decay of sound, in loudspeakers 205
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