Digital Audio Signal Processing
A fully updated second edition of the excellent Digital Audio Signal Processing
Well established in the consumer electronics industry, Digital Audio Signal Processing (DASP) techniques are used in audio CD, computer music and multi-media components. In addition, the applications afforded by this versatile technology now range from real-time signal processing to room simulation.
Digital Audio Signal Processing, Second Edition covers the latest signal processing algorithms for audio processing. Every chapter has been completely revised with an easy to understand introduction into the basics and exercises have been included for self testing. Additional Matlab files and Java Applets have been provided on an accompanying website, which support the book by easy to access application examples.
Key features include:
- A thoroughly updated and revised second edition of the popular Digital Audio Signal Processing, a comprehensive coverage of the topic as whole
- Provides basic principles and fundamentals for Quantization, Filters, Dynamic Range Control, Room Simulation, Sampling Rate Conversion, and Audio Coding
- Includes detailed accounts of studio technology, digital transmission systems, storage media and audio components for home entertainment
- Contains precise algorithm description and applications
- Provides a full account of the techniques of DASP showing their theoretical foundations and practical solutions
- Includes updated computer-based exercises, an accompanying website, and features Web-based Interactive JAVA-Applets for audio processing
This essential guide to digital audio signal processing will serve as an invaluable reference to audio engineering professionals, R&D engineers, researchers in consumer electronics industries and academia, and Hardware and Software developers in IT companies. Advanced students studying multi-media courses will also find this guide of interest.
Why Read This Book
You will get a compact, practical introduction to the DSP techniques used in real-world audio systems, with worked explanations and MATLAB examples to try on your own. The book balances theory and application so you can move quickly from fundamentals (sampling, filtering, FFT) to common audio tasks like convolution reverbs, time-stretching and spectral processing.
Who Will Benefit
Engineers and developers (graduate students to industry practitioners) who design audio processing, effects, or embedded audio systems and need a practical DSP reference focused on audio applications.
Level: Intermediate — Prerequisites: Basic signals and systems concepts (sampling, convolution), familiarity with Fourier transforms, and elementary digital filter ideas; some MATLAB experience is helpful.
Key Takeaways
- Explain sampling, aliasing, quantization and their practical impact on audio systems
- Design and apply FIR and IIR filters for typical audio tasks (EQ, crossover, smoothing)
- Use the FFT and windowing methods for spectral analysis and implement STFT-based processing
- Implement efficient convolution techniques (direct and FFT-based) for real-time reverberation and filtering
- Apply time-domain and spectral audio effects such as delay-based effects, pitch shifting and time-stretching
- Utilize multirate and oversampling methods to improve performance and audio quality in converters and effects
Topics Covered
- Introduction to Digital Audio and Overview
- Sampling, Quantization, and A/D−D/A Practicalities
- Discrete-Time Signals and Systems Review
- Digital Filters: FIR and IIR Design and Implementation
- The DFT, FFT Algorithms and Spectral Analysis
- Windowing, Filter Banks and Spectral Leakage
- Multirate Techniques and Oversampling
- Time-Domain Effects: Delays, Modulation, and Dynamics
- Convolution and Fast Convolution Methods (Reverb, Filtering)
- Short-Time Fourier Transform and Spectral Processing
- Time-Scale Modification and Pitch-Shifting Algorithms
- Psychoacoustics, Dithering and Perceptual Considerations
- Practical Implementation Notes and MATLAB Examples
Languages, Platforms & Tools
How It Compares
Covers much of the same practical audio-DSP ground as DAFX (Digital Audio Effects) but is more of a compact textbook with broader introductory coverage and accompanying MATLAB material; for deeper algorithmic and research-level treatments, pair it with Julius O. Smith's online material or the DAFX proceedings.
