ROOM ACOUSTICS, LOUDSPEAKERS, POWER AMPLIFIERS AND SPEAKER CABLES

1998 - 500 pages. - 22x15 cm- 250 illustrations - 20 tables - 370 references - index - ISBN 953-97685-0-0

 

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Comprehensive guide with worked examples, ideal for all audio professionals, students and top-end audio fans to find information quickly. This is accurate, complete and concise tool and necessary addition to the library of anyone involved in solving problems in audio and acoustical engineering. Cover topics on graduate/undergraduate level with numerous worked examples typical in practice. 8 parts with 300 chapters and exhaustive references after each part.

Part 1. Noise Level Prediction in Semireverberant Spaces: Basic definitions, Hearing protection, 15 worked examples with comparison of standard Sabine relation with precision methods,

Part 2. Analysis and Synthesis of Acoustically Small Spaces: Reyleigh formula, Schroeder frequency, Perception of sound reflections, absorption, reflections, diffusions of sound waves, Types of absorbers, Absorber Constructional formulae, Flutter, Interaction of sound waves with objects, Positioning of speakers in rooms, Stereo Presentation, Acoustical distortions, acoustical measurements (octave analysis, FFT, TDS, MLS, Wigner distribution). Shape and size of room, Olson, Bonello, Knudsen, Guilford criteria. Worked examples with constructional details: 1. Listening room, 2. Simultaneous translation system boot, 3. Multimedia room, 4. Radio and Recording Studio and Control Room (with original photographs during construction).

Part 3. Electrodynamical Loudspeakers: worked examples using TS parameters, measurements of TS parameters, Impulse response, Doublet, Heyser, Squared impulse, ETC, 3D response, Wigner distribution

Part 4. Loudspeaker Enclosures: Basic definitions, Worked examples: Calculation of bass reflex from architectural acoustic standpoint 3. Horn system, 4. Speaker driver synthesis from system specifications.

Part 5. Crossovers: Target function, Butterworth, Linkwitz-Rilay, up to 4-way, 4. Order. Worked examples: all models from 2-way, 1st order to 4-way, 4th order comparison with computer programs.

Part 6. Loudspeaker System Synthesis: System approach, Comparison of Linear phase system and minimum phase system, Choice of speaker drivers, Attenuation of loudspeaker drivers, Linearization of modulus of impedance, Attenuation of resonance, Power distribution in multiway speakers, Crossover construction, Choice of elements, Mechanical construction of speaker enclosures, Computer programs.

Part 7. Power Amplifiers: Choice of active elements, Circuit solutions, Active and Passive symmetrical inputs, Input circuits solutions, Influence of loudspeaker module of impedance, Output circuit solutions, Audio transformers, Classes, Feedforward and feedback circuits, Needed output power, Optimum configuration, solutions of power supply, Dynamical power, Bridges, Temperature protection, Technology of material, Printed circuit boards, Passive elements, Measurements, Impulse distortions, Slew Rate distortions, Damping factor, Some new factors.

Part 8. Speaker Cables: Constant voltage principles, Speaker currents, Influences on frequency response changes, Types of cables, Influence of geometry, Influence of materials, Skin effect, Galvanization, Shunt capacitance, Biwiring, Non-Linear distortions, Electrical fields, Impurities, Polarization, Magnetostriction, RF influences.

Index with 500 entries.