Speech based emotion recognition

Abstract

This chapter will examine current approaches to speech based emotion recognition. Following a brief introduction that describes the current widely utilised approaches to building such systems, it will attempt to broadly segregate components commonly involved in emotion recognition systems based on their function (i.e., feature extraction, normalisation, classifier, etc.) to give a broad view of the landscape. The next section of the chapter will then attempt to explain in more detail those components that are part of the most current systems. The chapter will also present a broad overview of how phonetic and speaker variability are dealt with in emotion recognition systems. Finally, the chapter presents the authors’ views on what are the current and future research challenges in the field.