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Foreword | |
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Preface | |
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Acknowledgments | |
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Digital Signals and Sampling | |
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Measuring the Ephemeral | |
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Analog-to-Digital Conversion | |
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Aliasing | |
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Digital-to-Analog Conversion | |
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Binary Numbers | |
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Synchronization | |
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Discretization | |
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Precision and Accuracy | |
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Quantization | |
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Noise and Distortion | |
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Information Density of Digital Audio | |
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Codecs | |
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Further Refinements | |
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Cultural Impact of Digital Audio | |
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Summary | |
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Musical Signals | |
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Why Imaginary Numbers? | |
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Operating with Imaginary Numbers | |
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Complex Numbers | |
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de Moivre's Theorem | |
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Euler's Formula | |
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Phasors | |
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Graphing Comlpex Signals | |
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Spectra of Complex Sampled Signals | |
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Multiplying Phasors | |
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Graphing Complex Spectra | |
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Analytic Signals | |
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Summary | |
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Spectral Analysis and Synthesis | |
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Introduction to the Fourier Transform | |
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Discrete Fourier Transform | |
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Discrete Fourier Transform in Action | |
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Inverse Discrete Fourier Transform | |
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Analyzing Real-World Signals | |
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Windowing | |
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Fast Fourier Transform | |
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Properties of the Discrete Fourier Transform | |
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A Practical Hilbert Transform | |
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Summary | |
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Convolution | |
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Rolling Shutter Camera | |
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Defining Convolution | |
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Numerical Examples of Convolution | |
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Convolving Spectra | |
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Convolving Sigals | |
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Convolution and the Fourier Transform | |
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Domain Symmetry between Signals and Spectra | |
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Convolution and Sampling Theory | |
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Convolution and Windowing | |
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Correlation Functions | |
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Summary | |
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Suggested Reading | |
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Filtering | |
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Tape Recorder as a Model of Filtering | |
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Introduction to Filtering | |
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A Sample Filter | |
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Finding the Frequency Response | |
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Linearity and Time Invariance of Filters | |
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FIR Filters | |
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IIR Filters | |
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Canonical Filter | |
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Time Domain Behavior of Filters | |
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Filtering as Convolution | |
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Z Transform | |
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Z Transform of the General Difference Equation | |
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Filter Families | |
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Summary | |
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Resonance | |
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The Derivative | |
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Differential Equations | |
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Mathematics of Resonance | |
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Summary | |
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The Wave Equation | |
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One-Dimensional Wave Equation and String Motion | |
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An Example | |
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Modeling Vibration with Finite Difference Equations | |
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Striking Points, Plucking Points, and Spectra | |
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Summary | |
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Acoustical Systems | |
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Dissipation and Radiation | |
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Acoustical Current | |
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Linearity of Frictional Force | |
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Inertance, Inductive Reactance | |
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Compliance, Capacitive Reactance | |
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Reactance and Alternating Current | |
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Capacitive Reactance and Frequency | |
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Inductive Reactance and Frequency | |
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Combining Resistance, Reactance, and Alternating Current | |
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Resistance and Alternating Current | |
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Capacitance and Alternating Current | |
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Acoustical Impedance | |
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Sound Propagation and Sound Transmission | |
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Input Impedance: Fingerprinting a Resonant System | |
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Scattering Junctions | |
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Summary | |
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Suggested Reading | |
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Sound Synthesis | |
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Forms of Synthesis | |
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A Graphical Patch Language for Synthesis | |
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Amplitude Modulation | |
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Frequency Modulation | |
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Vocal Synthesis | |
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Synthesizing Concert Hall Acoustics | |
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Physical Modeling | |
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Source Models and Receiver Models | |
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Summary | |
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Dynamic Spectra | |
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Gabor's Elementary Signal | |
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The Short-Time Fourier Transform | |
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Phase Vocoder | |
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Improving on the Fourier Transform | |
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Psychoacoustic Audio Encoding | |
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Summary | |
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Suggested Reading | |
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Epilogue | |
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Appendix | |
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About Algebra | |
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About Trigonometry | |
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Series and Summations | |
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Trigonometric Identities | |
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Modulo Arithmetic and Congruence | |
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Finite Difference Approximations | |
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Walsh-Hadamard Transform | |
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Sampling, Reconstruction, and Sinc Function | |
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Fourier Shift Theorem | |
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Spectral Effects of Ring Modulation | |
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Derivation of the Reflection Coefficient | |
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Notes | |
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Glossary | |
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References | |
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Equation Index | |