ABSTRACT
This chapter begins a journey through the vocal tract, starting at the bottom with the larynx or voice box as it is known in lay terms. The larynx, or more specifically the interaction between the vocal folds and the egressive pulmonic airstream, is responsible for phonation, the sound source which is termed voice in speech. Normal voice is just one way in which the vocal folds can be made to vibrate. There are several other so-called states of the glottis utilized in speech production. Another is the setting required for a different phonation type called creaky voice. To produce creaky voice, the adjustment of the folds made by the aretynoids is a little bit different. The table of diacritics on the International Phonetic Association (IPA) chart provides a symbol that can be used to indicate creaky voice – a tilde placed below a symbol.
