ABSTRACT
This chapter considers the use of computers with the human singing voice both for analysis and real-time visual displays for singing training. The filter in the model describes the acoustic effect of the shape of the vocal tract on the source as the acoustic pressure wave passes from its source to the local environment via the lips and/or nostrils of the speaker, known as the sound modifier. The prime acoustic change that cues pitch variation is fundamental frequency (f0). The electrolaryngograph enables the degree of contact between the vocal folds to be monitored as the larynx closed quotient (CQ), which is defined as the percentage of each cycle for which the vocal folds remain in contact. One essential achievement of the Bel Canto school of Western operatic singing is that it enables singers to be heard over vast orchestral forces in large spaces without amplification. Audio input is via the soundcard, and recorded audio data can be saved and replayed.
