L33 Psych 360 Lecture Notes - Lecture 3: Voice-Onset Time, Speech Perception, Vocal Folds

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Speech based on 44 phonemes as opposed to 26 letters. Place of articulation along x axis/manner of articulation along y axis. Basically just moving the tongue around in different positions. Vocal cords: either relaxing or stretching to put diff amounts of pressure on. Voicing: refers to the synchronicity of the release of the air in vocal cord vibrations. Ex: looking at a p sound -- break down into plosivity, place of articulation, voicing. Two sound produced in exact same location, but one is voiced and other is voiceless sound? essure on. Two sound produced in exact same location, but one is voiced and other is voiceless. Studies: use a speech synthesizer to manipulate time interval between release of air & v. Randomly pick a voice onset time, subject reports hearing ba or pa. If there"s something in the brain really sensitive to voicing feature, then there should be strict boundaries of where you hear certain sounds [categorical]

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