Theoretical and practical aspects on narrative sound effects in Film and TV. The Film Sound Design Resource site contents over 100 webpages on film sound design, over 50 linked online articles from the bibliography section and contains analyzing terminology and information from leading academic theoreticans and practioners in the film industry.
Excellent reading: Chapter 1 The Digital Representation of Sound, Part One: Sound and Timbre 1.1 What is Sound? 1.2 Amplitude 1.3 Frequency, Pitch and Intervals 1.4 Timbre Chapter 2 The Digital Representation of Sound, Part Two: Playing by the Numbers 2.1 The Digital Representation of Sound 2.2 Analog v. Digital