PSYC 212 Lecture Notes - Lecture 16: Ossicles, Timpani, Stereocilia

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

So complex square wave can be decomposed in simple sin waves. Ex: add higher frequency & add lower amplitudes can. *every complex wave can be decomposed into simpler waves. Complex waves = decomposed in 3 diff frequencies. *pure tones add together to make complex sound: 3 large waves = 3 hz, 6 smaller waves = 6 hz on top, 20 smaller waves = 20 hz on top. *square sound = composed of many frequencies but can be represent in 1 single figure. Ex: 1hz frequency + amplitude of 1 = represent wave as bar on spectrum graph. Bar on spectrum graph height of bar = amplitude & frequency= location on spectrum. Represented by combination of many bars on spectrum. Ex: frequency of 3000 hz [3 cycles in 1 ms] = smaller amplitude of 1/3 so lower height of bar. Ex: complex sound = add many frequencies & amplitudes so many bars on same spectrum.