Laryngeal Vibratory Mechanisms

The laryngeal vibratory mechanisms M0, M1, M2 and M3 refer to the patterns of true vocal fold vibrating behavior that often gave rise to some of the sensations prototypically designated by registers/voices, such as pulse phonation, strohbass, grave, chest voice, mixed voice, falsetto, head voice, flageolet, super head voice, and whistle. Some of these, like...

Nasality

Nasality is the subjective interpretation of nasalance and is achieved by allowing airflow through the nasal cavity. A voiced sound can be classified according to its nasality as hyponasal, homeonasal or hypernasal....

The Power-Source-Filter Model of Voice Production

Phonation — the act of using one’s voice — is a process that involves many interconnected parts. The complex system that is the voice can be divided into a sequence of three main components: a power source (the respiratory system), a sound source (typically the vocal folds), and an acoustic filter (the vocal tract)....

Vocal Tract Length

Manipulation of the vocal tract length (VTL), measured from the glottis to the lips, is the main way to alter the vocal tract volume (VTV), a measure of the space inside the vocal tract. By altering the vocal tract volume, one can make their voice sound lighter or darker....