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| Beranek L.L. - Acoustics |
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| Предметный указатель |
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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