The Art of Sound Reproduction

Chapter 13

Audio signal processing

In most practical audio systems some form of signal processing is required, ranging from a simple mixer combining several microphones into one signal, through effects such as artificial reverberation to complex techniques such as digital bit rate reduction or compression. All of these processes are treated here.

13.1 Introduction

Signals from a microphone cannot be used directly without at least some form of level control. In the real world microphone signals may have excessive dynamic range or there could be bass tip-up. Particularly in pop music production the frequency response may need to be altered to obtain some desired characteristic. It is often necessary to mix the output of several microphones into ...