PS262 Lecture Notes - Lecture 13: Voice-Onset Time, Formant, Speech Perception
Document Summary
Acoustic signal: the pattern of frequencies and intensities of the sound stimulus. Articulators: structure involved in speech production, such as the tongue, lips, teeth, jaw, and soft palate. Formants: horizontal band of energy in the speech spectrogram associated with vowels. Sound spectrogram: a plot showing the pattern of intensities and frequencies of a sound stimulus. Formant transitions: in the speech stimulus, the rapid shift in frequency that proceeds a formant. Phoneme: the shortest segment of speech that, if changed, changes the meaning of a word. The variable relationship between phonemes and the acoustic signal. Coarticulation: the overlapping articulation that occurs when different phonemes follow one another in speech. Because of these effects, the same phoneme can be articulated differently depending on the context in which it appears. For example, articulation of the /b/ in boot is different articulation of the /b/ in boat.
