Time-Domain Processing

Abstract

This chapter will discuss processing of audio signals through the use of time-domain techniques. These act on the samples of a waveform to deliver a variety of effects, from echoes and reverberation to pitch shifting, timbral modification and sound localisation. The chapter is divided into four sections dealing with the basic methods of fixed and variable delays, filtering and spatial audio. Code examples are provided implementing many of the techniques from first principles, to provide the reader with an insight into the details of their operation.