chapter  19
14 Pages

Overview of Microphone Arrays and Adaptive Systems

A microphone array may be considered to be a set of microphone elements arrayed in space

whose outputs are individually processed and summed to produce a given output. In a basic

sense, an early cardioid microphone created by summing separate pressure and gradient

elements may be thought of as an array, but this is not what we have in mind. The arrays and

techniques discussed here normally use multiple elements to achieve a target directional

response that may be specific for a given application. In other cases, signal processing may be

applied to single microphones, or microphone channels, to enhance performance in some

unique respect.