LINA02H3 Lecture : Speech Perception from lecture 5

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The how, what and why we perceive (discriminate and identify) speech sounds the way we do. The difference between a b and p in acoustics. Alvin liberman- in understanding the relationship between acoustics and speech perception, used a pattern playback" machine- discovered difference between b" and p" based on certain acoustics. We divide up the continuous signal into discrete categories. Success of speech communication= suggests that speakers must have shared knowledge about how to categorize continuous speech signals into speech categories. Speech sounds are reducible to a set of acoustic features. Air molecules vibrating at a specific frequency- the frequency of the movement of air particles. The time at which these events occur difference in movement gives us the perception between bae and gae . Relies of two different types of test that are called identification and. Identification: plays the sound- tell me what you hear. Discrimination: presented with two stimuli and your task is to point out the difference.

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