PSYB51H3 Lecture Notes - Lecture 9: Sound Intensity, Azimuth, Arnold Tongue
Document Summary
3000-4000hz: pain threshold is 135+, high-risk threshold around 115hz; frequency doesn"t matter, recall our best spatial frequency detection is 7-10 cycles, and our. The frequencies of its components are integer multiples of lowest frequency: fundamental frequency: lowest frequency component of a sound (=1st harmonic, timbre: sounds with same pitch and loudness may still sound different (piano vs. guitar playing a) Imagine large rock and strong stick (see-saw lever) we can move the rock better than we could with just our hands. Imagine someone is pushing with their palm on your hand; when your hand is flat on a table: shouldn"t hurt. Characteristic freqs: two-tone suppression: decrease in firing rate of 1 an due to one tone, when a. Psychoacoustics: the study of psychological correlates of the physical dimensions of acoustics; a branch of psychophysics. Ability threshold: a map of just barely audible tones of varying frequencies. Equal-loudness curves (note the roughly regular distances thanks to db)
