Digital Audio Signal Processing

Preface
1 Introduction
1.1 Studio Technology
1.2 Digital Transmission Systems
1.3 Storage Media
1.4 Audio Components at Home
2 Quantization
2.1 Signal Quantization
2.1.1 Classical Quantization Model
2.1.2 Quantization Theorem
2.1.3 Statistics of Quantization Error
2.2 Dither
2.2.1 Basics
2.2.2 Implementation
2.2.3 Examples
2.3 Spectrum Shaping of Quantization - Noise Shaping
2.4 Number Representation
2.4.1 Fixed-point Number Representation
2.4.2 Floating-point Number Representation
2.4.3 Effects on Format Conversion and Algorithms
3 AD/DA Conversion
3.1 Methods
3.1.1 Nyquist Sampling
3.1.2 Oversampling
3.1.3 Delta-sigma Modulation
3.2 AD Converters
3.2.1 Specifications
3.2.2 Parallel Converter
3.2.3 Successive Approximation
3.2.4 Counter Methods
3.2.5 Delta-sigma AD Converter
3.3 DA Converters
3.3.1 Specifications
3.3.2 Switched Voltage and Current Sources
3.3.3 Weighted Resistors and Capacitors
3.3.4 R-2R Resistor Networks
3.3.5 Delta-sigma DA Converter
4 Audio Processing Systems
4.1 Digital Signal Processors
4.1.1 Fixed-point DSPs
4.1.2 Floating-point DSPs
4.1.3 Development Tools
4.2 Digital Audio Interfaces
4.2.1 Two-channel AES/EBU Interface
4.2.2 MADI Interface
4.3 Single-processor Systems
4.3.1 Peripherals
4.3.2 Control
4.4 Multiprocessor Systems
4.4.1 Connection via Serial Links
4.4.2 Connection via Parallel Links
4.4.3 Connection via Standard Bus Systems
4.4.4 Scalable Audio System
5 Equalizers
5.1 Recursive Audio Filters
5.1.1 Design
5.1.2 Parametric Filter Structures
5.1.3 Quantization Effects
5.2 Nonrecursive Audio Filters
5.2.1 Fast Convolution
5.2.2 Fast Convolution of Long Sequences
5.2.3 Filter Design by Frequency Sampling
5.3 Multi-complementary Filter Bank
5.3.1 Principles
5.3.2 Example: 8-Band
Multi-complementary Filter Bank
6 Room Simulation
6.1 Early Reflections
6.1.1 Ando's Investigations
6.1.2 Gerzon Algorithm
6.2 Subsequent Reverberation
6.2.1 Schroeder Algorithm
6.2.2 General Feedback Systems
6.3 Approximation of Room Impulse Responses
7 Dynamic Range Control
7.1 Static Curve
7.2 Dynamic Behavior
7.2.1 Level Measurement
7.2.2 Gain Factor Smoothing
7.2.3 Time Constants
7.3 Implementation
7.3.1 Limiter
7.3.2 Compressor, Expander, Noise Gate
7.3.3 Combination System
7.4 Realization Aspects
7.4.1 Sampling Rate Reduction
7.4.2 Curve Approximation
7.4.3 Stereo Processing
8 Sampling Rate Conversion
8.1 Synchronous Conversion
8.2 Asynchronous Conversion
8.2.1 Single-stage Methods
8.2.2 Multistage Methods
8.2.3 Control of Interpolation Filters
8.3 Interpolation Methods
8.3.1 Polynomial Interpolation
8.3.2 Lagrange Interpolation
8.3.3 Spline Interpolation
9 Data Compression
9.1 Lossless Data Compression
9.2 Lossy Data Compression
9.3 Psychoacoustics
9.3.1 Critical Bands and Absolute Threshold
9.3.2 Masking
9.4 ISO-MPEGI Audio Coding
9.4.1 Filter Banks
9.4.2 Psychoacoustic Models
9.4.3 Dynamic Bit Allocation and Coding
References
Index