Sound System EngineeringSound System Engineering Third Edition is a complete revision and expansion of the former work. Written by two leading authorities in the field of audio engineering, this highly respected guide covers the fundamentals necessary for the understanding of today's systems as well as for those systems yet to come. The space formerly occupied by outdated photographs of manufacturers' product and of older system installations has now been filled with new measurements and discussions of the measurement process. The "Mathematics for Audio chapter has been expanded to include the mathematics of phasors. The "Interfacing Electrical and Acoustic Systems chapter has a completely new section covering the analysis of alternating current circuits. Additionally, system gain structure is now treated by both the available input power method and the voltage only method, complete with illustrations of each. All chapters dealing with loudspeaker directivity and coverage, the acoustic environment, room acoustics, speech intelligibility, and acoustic gain appear in up to date versions. In addition there is new material on signal delay and synchronization and equalization. There are completely new chapters on microphones, loudspeakers and loudspeaker arrays including line arrays with steering and beam-width control, and signal processing, both analog and digital. The book runs the gamut of sound system design from the simplest all-analog paging system to the largest multipurpose digital systems. In writing this third edition, the authors kept in mind the needs of sound system installers, sound system service technicians, and sound system designers. All three groups will find the material to be useful for everyday work as well as beneficial in the furtherance of their overall audio education. |
Contents
Chapter 1 Mathematics for Audio
| 1 |
Chapter 2 Using the Decibel
| 31 |
Chapter 3 Interfacing Electrical and
Acoustic Systems | 57 |
Chapter 4 Loudspeaker Directivity and Coverage
| 97 |
Chapter 5 The Acoustic Environment
| 113 |
Chapter 6 Audio and Acoustic Measurements
| 131 |
Chapter 7 Large Room Acoustics
| 153 |
Chapter 8 Small Room Acoustics
| 175 |
Chapter 11
Microphones | 221 |
Chapter 12
Loudspeakers and Loudspeaker Arrays | 253 |
Chapter 13
Signal Delay and Signal Synchronization | 329 |
Chapter 14
Signal Processing | 341 |
Chapter 15
Sound System Equalization | 399 |
Chapter 16
Putting It All Together | 423 |
Appendix I
Symbols and Abbreviations | 451 |
Appendix II
Wiring Practices | 455 |
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Common terms and phrases
absorption acoustic gain acoustic pressure AES3 ALCONS amplifier amplitude response analog angular frequency array attenuation audio axis bandpass bandwidth behavior cable calculated capacitance capacitor circuit comb filter complex component conductor connector crossover curve decibels device diaphragm direct sound distance driver electrical employed energy equal equation example factor feedback Figure Fourier high frequency horn impedance impulse response inch input Laplace transform linear listener logarithm loudspeaker low frequency low pass magnitude measurement microphone minimum phase noise octave output parameters pass filter phase response phasor piston plane plot polar radiation ratio reactance reflections resistance resistor resonance result sampling signal delay solder sound field sound level sound pressure sound reinforcement system sound system space spectrum surface terminals tion transfer function transform velocity voice coil voltage wave wavelength wire zero