An informal and easy-to-understand introduction to digital signal processing, this treatment emphasizes digital audio and applications to computer music. Topics include: • Phasors and tuning forks • The wave equation • Sampling and quantizing • Feedforward and feedback filters • Comb and string filters • Periodic sounds • Transform methods • Filter design The text provides a working knowledge and understanding of frequency-domain methods and features questions and suggested experiments that help readers understand and apply digital signal processing theory and techniques. For undergraduate and graduate students of digital signal processing in engineering and computer science courses, composers of computer music and those who work with digital sound, internet developers who work with multimedia, and science-oriented readers seeking an introduction to the subject.