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We began the lecture by obtaining an approximation of the transfer function of the vocal tract system using a simple model consisting of tubes of equal length connected to a tube of zero diameter. We observed that the transfer function of such a system is an all pole filter cascaded with a time delay. The poles of this filter determine the location of the local maxima of the voiced phonemes we pronounced; these local maxima are called "formants" and play an important role in the recognition of speech. | We began the lecture by obtaining an approximation of the transfer function of the vocal tract system using a simple model consisting of tubes of equal length connected to a tube of zero diameter. We observed that the transfer function of such a system is an all pole filter cascaded with a time delay. The poles of this filter determine the location of the local maxima of the voiced phonemes we pronounced; these local maxima are called "formants" and play an important role in the recognition of speech. | ||
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| + | Related Rhea Pages: | ||
| + | *[[SupplementarySpeech_prelecture|Supplementary Notes about Speech]] | ||
| + | *[[Student_summary_speech|More Supplementary Notes about Speech]] | ||
Previous: [[Lecture31ECE438F10|Lecture 31]]; Next: [[Lecture33ECE438F10|Lecture 33]] | Previous: [[Lecture31ECE438F10|Lecture 31]]; Next: [[Lecture33ECE438F10|Lecture 33]] | ||
Latest revision as of 12:53, 8 November 2010
Lecture 32 Blog, ECE438 Fall 2010, Prof. Boutin
Monday November 8, 2010 (Week 12) - See Course Outline.
We began the lecture by obtaining an approximation of the transfer function of the vocal tract system using a simple model consisting of tubes of equal length connected to a tube of zero diameter. We observed that the transfer function of such a system is an all pole filter cascaded with a time delay. The poles of this filter determine the location of the local maxima of the voiced phonemes we pronounced; these local maxima are called "formants" and play an important role in the recognition of speech.
Related Rhea Pages:
Previous: Lecture 31; Next: Lecture 33
