This excellent text is written for advanced study and practicing engineers who need to design controllers for active noise control systems. The emphasis is on the algorithms that are usually implemented in a Digital Signal Processor. The book's treatment of acoustics, sensors, and actuators is not as in-depth as texts by Fuller or Nelson. Included in the book is C and assembly code for the most popular adaptive control techniques, but beware of bugs and patent issues. One of the algorithms covered in detail is the Filtered-X Least Mean Squares technique that one of the Authors (Morgan) help to make popular in the community.