PSY 3108 Lecture Notes - Lecture 10: Incus, Stirrup, Mcgurk Effect

• School: University of Ottawa
• Department: Psychology
• Course: PSY 3108
• Professor: Charles Collin

Document Summary

Defined by two qualities: amplitude loudness, frequency subjective. All other sounds are made up of combinations of pure tones: human voice hundreds of pure tones. Take a tuning fork and tap it: coming towards you compressed air, away from you rarefied air. Two waves with same frequency but different amplitudes. Number of amplitude cycles within a given time period. Attack = building up of a sound at the beginning of a tone. Decay = decrease in sound at the end of a tone. Attack and decay gradually increasing and gradually decreasing. Natural sounds = do not have a single frequency and/or amplitude. Fundamental frequency lowest frequency of a natural sound. Overtone 2x or 3x (whole number) times the frequency. Timbre shape of sound in terms of frequency distribution in a time period. Sounds that have patterns that repeat across time: musical notes, vowel sounds. Aperiodic sounds = not repeating pattern: hissing, fricative sounds, thumps etc.