ABSTRACT
The importance of phonation as a principal sound source for speech has been highlighted in the previous chapter, and its function in differentiating between voiced and voiceless sounds was introduced in chapter 4. This chapter examines the anatomical and physiological bases of phonation in a bit more detail, and introduces a range of relevant analysis techniques. As we show, phonation is much more than a simple on-off phenomenon, whereby voiced sounds involving vocal fold vibration contrast with voiceless sounds that do not. There is, in fact, considerable variation in the pattern of vocal fold vibration associated with voiced sounds, and this chapter introduces a number of different types of phonation.
