PSYC 212 Lecture Notes - Lecture 11: Tuning Fork, Railways Act 1921, Spectrogram

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Reza Farivar

Document Summary

Auditory perception: tone: a sound at a specific frequency. Example: if you specifically present a tuning fork (fourier transform will show one peek: stream: the complex ones together that make up a rich source of auditory information. Auditory scene analysis: complex sounds are everywhere, how do we tell them apart, the basilar membrane doesn"t do that for us , out brain needs grouping cues in sound to know what sound bits belong to which source. What are the rules that the auditory system uses to assign sounds to streams : attention, pitch, timbre, grouping by frequency, pattern of speech production, phase, Sample 1: listening to audio (one stream, then two) What are are the two factors that together give rise to the perception of two streams in the second presentation: similarity of frequency, similarity of volume, length of the note, the rate of occurrence* Rule #1: stream segregation by common frequency at high temporal rate.