PSYCH 1XX3 Chapter Notes - Chapter 5: Sound Energy, Musical Tone, Cochlea
8 Apr 2018
School
Department
Course
Professor
Document Summary
Chapter 5 the ear: clearer properties, amplitude = the height of a wave, wavelength = distance between two troughs / peaks. Wavelength: the distance between two successive peaks / troughs. Smaller wavelengths = higher pitches and vice versa. Difference sound waves combine to create distinctive sounds. Explains why instruments (though playing the same note) sound unique. Ex: the addition of two pure tone harmonics creates a more complex final wave. 3 sections of the ear: inner, middle and outer: outer. Pinna = the outside that we see: act like a satellite disk that direct sound waves into the ear canal. At end of ear canal = tympanic membrane (eardrum: when sound energy reaches here, compression / decompression of air cau, ses membrane to vibrate. Tympanic membrane connected to the ossicles (three small bones that make up the middle ear: middle. The three bones of the ossicles = the hammer, the anvil and the stirrup.
