The Audio Circuits Cookbook is a comprehensive collection of high-quality audio circuit modules--"building blocks" --that readers can arrange to create complete audio devices. More than 80 featured circuits cover every aspect of audio, from basics such as active rectifiers, peak followers, and oscillators, to complete professional quality devices including compressors, equalizers, preamps, and an analog synthesizer. Offering a range of tutorial advice that covers capacitor selection, multi-layer PC board design, and more, each circuit in this book is also provided as an LTspice file, ready to be copied into your projects. It includes detailed explanations of every type of active filter commonly used for audio, along with a spreadsheet that calculates their component values, as well as Ohm's Law and Decibels spreadsheets. Providing practical explanations of both simple and sophisticated audio circuits using minimal math and theory, this is an ideal manual for intermediate audio professionals, hobbyists, and students coming to audio electronics from non-engineering backgrounds. Professional engineers will find much of value as well in the complete and tested circuits.