Psychology 2115A/B Study Guide - Final Guide: Incus, Rarefaction, Fundamental Frequency
13 Jun 2016
School
Department
Course
Professor
Document Summary
Vibration of an object, will change compression of particles in the air around it. Occurs by applying force to an object. Psychical properties of creating sound waves (inertia- object will stay at rest), tuning fork will move in the opposite way (overshoot its original shape- now opened up that air space and more room for the particles (rarefaction) Referred to as amplitude- height of the wave, how much difference when you compress and rarify the air. Amplitude- perceptually as loudness (how much you are causing compression and rarefaction to occur- will change how loud the sound is perceived)- greater height of wave- louder the sound. Frequency- of the wave form, fewer wave forms over time (lower the pitch we perceive), lower and fewer cycles (fewer hertz), more wave forms over time (higher the pitch) Complex sounds- nice repeating pattern that is in the sinusoidal function of cells, wave form itself (points which repeat themselves) resemble that of the lowest frequency.
