Journal article
Theory of Glottal Airflow and Source-Filter Interaction in Speaking and Singing
Acta acustica united with Acustica, Vol.90(4), pp.641-648
07/01/2004
Abstract
The classical linear source-filter theory of voice production is compared to a nonlinear theory that includes interaction between the vocal tract & glottal airflow. By including the subglottal tract, it is shown that the combined vocal tract impedance can be primarily inertive (exhibiting positive reactance) over a wide range of F0. The epilarynx tube & the glottal entry tube contribute to this heightened inertive reactance & serve as impedance matchers for the rest of the vocal tract. It is shown that a high degree of glottal flow waveform skewing is attributable to source-tract interaction, with skewing quotients ranging from 1.0 to 10.0. To a large degree, epilarynx tube diameter governs waveform skewing & the peak glottal flow. For high levels of interaction, a speaker or singer can conserve glottal flow without loss of maximum flow declination rate (MFDR). Thus, the interactive system is more efficient from a flow consumption point of view, but it does not yield favorable conditions slightly above the first formant frequency, where the combined subglottal & supraglottal reactance can be compliant for a small range of fundamental frequencies. Inferences are drawn with respect to voice quality adjustments for speaking & different styles of singing. 5 Figures, 35 References. Adapted from the source document
Details
- Title: Subtitle
- Theory of Glottal Airflow and Source-Filter Interaction in Speaking and Singing
- Creators
- Ingo Titze
- Resource Type
- Journal article
- Publication Details
- Acta acustica united with Acustica, Vol.90(4), pp.641-648
- ISSN
- 1610-1928
- eISSN
- 1861-9959
- Number of pages
- 8
- Language
- English
- Date published
- 07/01/2004
- Academic Unit
- Communication Sciences and Disorders; School of Music
- Record Identifier
- 9984719747102771
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