Whats a formant? Towards a Speech Science Teaching Toolbox Stephen M. Tasko Ph.D. CCC-SLP Western Michigan University Donald S. Finan Ph.D. University of Northern Colorado

Whats a formant? Towards a Speech Science Teaching Toolbox

Stephen M. Tasko Ph.D. CCC-SLPWestern Michigan University

Donald S. Finan Ph.D.University of Northern Colorado

Tasko & Finan ASHA 201111The Speech Science Toolbox ProjectFinding usEmail: speechtoolboxproject@gmail.comWebsite: http://homepages.wmich.edu/~stasko/speechtoolboxproject.html

Tasko & Finan ASHA 201122Difficult Concepts?Source Filter theory of speech productionUnderstanding resonance

...so how do we teach the concept of resonance?

Tasko & Finan ASHA 201133Source Filter Theory of Speech ProductionAssumptions in a nutshellWhat we hear coming out of someones mouth is the consequence of The generation of a sound source Filtering of that sound source via the vocal tracts resonant propertiesThe source and filter operate in a largely independent manner

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Tasko & Finan ASHA 2011From Titze (1994)55Standard Illustration of Source Filter Theory

Source(Phonation)Filter(Resonator)Speech(What We Hear)Input SpectrumFrequency ResponseCurveOutput Spectrum

Tasko & Finan ASHA 201166Same Source, Different Filter

Tasko & Finan ASHA 201177Different Source, Same Filters

White NoiseTasko & Finan ASHA 201188Different Source, Same Filters (Human)

burpsnoreLip buzz?Tasko & Finan ASHA 201199Different Source, Same Filters (Non-Human)

Tasko & Finan ASHA 20111010Different Source: The Talkbox

Tasko & Finan ASHA 2011http://www.youtube.com/watch?v=Q-jrpxL3aP8&noredirect=1

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Tasko & Finan ASHA 20111212Software Aids for Teaching Source-Filter TheoryBirkholtzHuckvaleEsystemVTDemo

Tasko & Finan ASHA 20111313The Speech Science Toolbox ProjectFinding usEmail: speechtoolboxproject@gmail.comWebsite: http://homepages.wmich.edu/~stasko/speechtoolboxproject.html

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