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The Speech Science Toolbox Project

What’s 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. The Speech Science Toolbox Project. Finding us Email: speechtoolboxproject@gmail.com Website :

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The Speech Science Toolbox Project

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  1. What’s a formant? Towards a Speech Science Teaching ToolboxStephen M. Tasko Ph.D. CCC-SLPWestern Michigan UniversityDonald S. Finan Ph.D.University of Northern Colorado Tasko & Finan ASHA 2011

  2. The Speech Science Toolbox Project • Finding us Email: speechtoolboxproject@gmail.com Website: http://homepages.wmich.edu/~stasko/speechtoolboxproject.html Tasko & Finan ASHA 2011

  3. Difficult Concepts? • Source Filter theory of speech production • Understanding resonance ...so how do we teach the concept of resonance? Tasko & Finan ASHA 2011

  4. Source Filter Theory of Speech Production Assumptions in a nutshell • What we hear coming out of someone’s mouth is the consequence of • The generation of a sound source • Filtering of that sound source via the vocal tract’s resonant properties • The source and filter operate in a largely independent manner Tasko & Finan ASHA 2011

  5. From Titze (1994) Tasko & Finan ASHA 2011

  6. Standard Illustration of Source Filter Theory Speech (What We Hear) Filter (Resonator) Source (Phonation) Frequency Response Curve Input Spectrum Output Spectrum Tasko & Finan ASHA 2011

  7. Same Source, Different Filter Tasko & Finan ASHA 2011

  8. Different Source, Same Filters White Noise Tasko & Finan ASHA 2011

  9. Different Source, Same Filters (Human) burp snore Lip buzz ? Tasko & Finan ASHA 2011

  10. Different Source, Same Filters (Non-Human) Tasko & Finan ASHA 2011

  11. Different Source: The Talkbox • http://www.youtube.com/watch?v=Q-jrpxL3aP8&noredirect=1 Tasko & Finan ASHA 2011

  12. Tasko & Finan ASHA 2011

  13. Software Aids for Teaching Source-Filter Theory • Birkholtz • Huckvale • Esystem • VTDemo Tasko & Finan ASHA 2011

  14. The Speech Science Toolbox Project • Finding us Email: speechtoolboxproject@gmail.com Website: http://homepages.wmich.edu/~stasko/speechtoolboxproject.html Tasko & Finan ASHA 2011

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