Loudspeaker Handbook

By: John Eargle

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Hardcover | 30 September 2003 | Edition Number 2

At a Glance

Hardcover
436 Pages

Edition Type
Revised

Dimensions(cm)
23.5 x 16.51 x 3.18

Hardcover

$359.75

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The second edition of Loudspeaker Handbook follows the same general outlines as the highly successful first edition and has been augmented and updated in many areas of technology. Most notable are the developments in large-scale, programmable line arrays, distributed mode loudspeakers, and ultrasonic-based audio transduction. Additionally, the core chapters on low frequency systems, system concepts, and horn systems have been expanded to include both more analytical material and a richer array of examples.

Much of the success of the first edition has been due to its accessibility both to loudspeaker engineers and to lay technicians working in the field - a point of view the author maintains in the present work. A full understanding of the underlying technology requires a fairly rigorous engineering background through the second year of professional study. At the same time, the generous use of graphs, with their intuitive thrust, will be useful to all readers.

Loudspeaker Handbook, Second Edition continues to be appropriate for use in courses at the undergraduate senior level, for graduate students, and for professionals in audio and acoustical engineering.

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You Can Find This Book In

Non-Fiction Engineering & Technology Other Technologies & Applied Sciences Acoustic & Sound Engineering Science Physics Classical Mathematics Wave Mechanics including Vibration & Acoustics Electronics & Communications Engineering Communications Engineering & Telecommunications Energy Technology & Engineering Electrical Engineering

Arts & Entertainment Music Electronics Engineering

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Paperback

Published: 7th December 2010

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Author's Preface	p. xi
Symbols Used in this Book	p. xiii
Electroacoustical Engineering Fundamentals: The Dynamic Loudspeaker	p. 1
Introduction	p. 1
A simple electrical series resonant circuit	p. 1
A simple mechanical resonant system	p. 3
Impedance and mobility analogies	p. 4
Combining electrical and mechanical domains	p. 5
Combining mechanical and electrical domains	p. 7
Directional characteristics	p. 13
Cone excursion, power, and pressure relationships in graphical form	p. 18
Structural Details of Cone and Dome Drivers	p. 21
Introduction	p. 21
Mechanical construction details of the cone driver	p. 21
The moving system	p. 26
Variations on the cone driver	p. 38
HF dome drivers	p. 41
MF dome drivers	p. 43
Distortion in come and dome drivers	p. 44
Principles of Magnetics	p. 51
Introduction	p. 51
Fundamentals	p. 51
Details of the magnetic circuit	p. 55
Linearity issues	p. 55
Temperature rise and demagnetization	p. 57
Modeling of magnetic phenomena	p. 59
Magnetic shielding	p. 59
Low Frequency Systems and Enclosures	p. 63
Introduction	p. 63
An introduction to Thiele-Small parameters	p. 63
Sealed LF system analysis	p. 66
Ported LF system analysis	p. 73
Some useful alignments	p. 76
Port turbulence under high drive conditions	p. 82
The passive radiator	p. 84
Transmission line systems	p. 84
Dipole LF systems	p. 87
Multi-chamber LF bandpass systems	p. 89
The acoustic lever	p. 92
Transducers in acoustical series and parallel	p. 93
Slot loading of LF drivers	p. 95
Subwoofers	p. 97
Directional properties of dual LF drivers mounted vertically	p. 99
Alignment shifts	p. 101
Dividing Networks and Systems Concepts	p. 105
Introduction	p. 105
Basic dividing networks	p. 105
Upper useful frequency limits for drivers	p. 112
Some notes on network component quality	p. 113
Stock networks and autotransformers	p. 114
Case studies	p. 115
Off-axis lobing effects	p. 120
Baffle component layout and edge details	p. 123
Time domain response of loudspeakers	p. 128
Loudspeaker dispersion and power response	p. 129
In-line, Planar Loudspeakers, and Arrays	p. 133
Introduction	p. 133
Analysis of the constant charge ESL	p. 135
Electromagnetic planar loudspeakers	p. 140
Discrete line arrays	p. 144
Large-scale arrays for sound reinforcement	p. 151
Programmable arrays	p. 157
Horn Systems	p. 161
Introduction	p. 161
Horn flare profiles	p. 161
The driving transducer	p. 165
Analysis of compression drivers	p. 173
The plane wave tube (PWT)	p. 179
Secondary resonances in the compression driver	p. 182
Ring radiators and UHF devices	p. 183
Families of horns	p. 183
Impedance measurements on horns	p. 199
Distortion in horn systems	p. 200
Horn driver protection	p. 203
Lower midrange and LF horn drivers	p. 205
LF horns	p. 205
Horn arrays	p. 210
The Electronic Interface	p. 215
Introduction	p. 215
The power amplifier	p. 215
Line losses	p. 218
Matching loudspeakers and amplifiers	p. 222
Amplifier bridging	p. 223
Multi-amplifying	p. 226
Electronic control of loudspeaker systems dynamic performance	p. 227
Thermal Failure Modes of Loudspeakers	p. 233
Introduction	p. 233
Basic heat transfer mechanisms	p. 233
Estimating values of thermal resistance	p. 237
Low frequency performance shifts	p. 238
Techniques for heat removal	p. 239
Recording Monitor Loudspeakers	p. 245
Introduction	p. 245
A historical survey	p. 246
The modern era	p. 249
Evolution of modern horn HF systems	p. 249
Modern cone/dome systems	p. 250
Smaller monitor designs	p. 256
Thermodynamic distortion in dome systems	p. 256
The monitoring environment	p. 258
The home project studio	p. 261
Monitor system equalization	p. 261
Loudspeakers in Speech and Music Reinforcement	p. 267
Introduction	p. 267
Systems for speech reinforcement	p. 267
The role of signal delay	p. 269
Case studies	p. 271
Computer simulation of loudspeaker coverage	p. 276
System equalization	p. 279
Measurements and estimation of speech intelligibility	p. 279
Electronic halls	p. 284
Environmental effects on sound propagation	p. 289
Systems for high-level music performance	p. 289
System stability	p. 293
Multichannel Systems for Film, Video, and Music	p. 297
Introduction	p. 297
Evolution of theater loudspeaker systems	p. 297
Evolution of theater architecture and acoustics	p. 303
A professional theater	p. 304
Theater audio chain calibration	p. 306
Power bandwidth of audio formats for film	p. 309
Current state-of-the-art in theater loudspeakers	p. 310
Multichannel video in the home	p. 312
Overview of music in surround sound	p. 316
Holographic techniques in surround sound reproduction	p. 318
Positioning sound sources via reflections and focusing	p. 320
Loudspeaker Measurements and Modeling	p. 325
Introduction	p. 325
Frequency response measurements	p. 325
Distortion measurements	p. 328
Phase and group delay response measurements	p. 331
Measurement of directional data	p. 333
The measuring environment	p. 334
Ground plane measurements	p. 340
Near-field measurements	p. 340
An overview of transform measurements	p. 343
Optical measurements	p. 347
Modeling techniques	p. 351
Destructive testing	p. 351
Loudspeaker Specifications for Professional Applications	p. 355
Introduction	p. 355
On-axis frequency response	p. 355
Impedance	p. 356
Reference sensitivity ratings	p. 357
Power ratings of drivers and systems	p. 360
Power (dynamic) compression	p. 361
Distortion	p. 363
Directivity characteristics of systems and components	p. 363
Thiele-Small parameters	p. 364
Powered loudspeaker systems	p. 365
Stereo and the Listening Environment	p. 367
Introduction	p. 367
Listening room boundary conditions: the laboratory meets the real world	p. 367
Room modes	p. 368
Room treatment at mid and high frequencies	p. 372
Optimizing stereophonic localization	p. 375
Loudspeaker arrangements for extended stereo imaging	p. 376
Stereo performance from a single unit	p. 379
A Survey of Unusual Transducers	p. 385
Introduction	p. 385
Variations on a magnetic theme	p. 386
Piezo-electric and related devices	p. 396
Ionized air devices	p. 398
The air modulator	p. 401
Rotary actuators	p. 403
Digital loudspeakers	p. 404
Distributed mode loudspeakers (DML)	p. 405
Overview of ultrasonic systems	p. 408
Index	p. 413
Table of Contents provided by Ingram. All Rights Reserved.

Loudspeaker Handbook

At a Glance

Hardcover

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Defective items

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