SLHS 2204 Lecture Notes - Lecture 6: Soft Palate, Spectrogram, Phonation
8 Feb 2018
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You need a laptop to take exam. The modification of the speech apparatus associated with speech production. Vocal tract (structures above the vocal folds) Phonation (vibration of the of vocal folds) Resonation (modification of sounds as it passes through the vocal tract) The vocal tract softens and mellows the vibration of the vocal folds. 20 cycles per second or 20hz tone. 20,000 cycles per second or 20khz (20,000hz) Rather than counting the peaks in one second, we can do math to learn the frequency of a tone. The frequencies from the sinusoidal waveforms are not added, the individual values in each time point are added across the entire waveforms. A spectrogram represents frequency over time, and amplitude (intensity) is color coded (or gray shaded). Acoustics 101: yoda"s speech: spectrum slice and 3d spectrogram. How vocal tract configurations relate with acoustics. Length of vocal tract affects speech acoustics iclicker question #1.
