PSL300H1 Lecture Notes - Lecture 24: Cochlear Duct, Tympanic Duct, Basilar Membrane
Document Summary
It occurs in a medium such as air when there is a fast movement of a boundary. Near the moving surface, the medium is compressed or rarified, causing a pressure difference which propagates at a speed v that depends on density and elasticity (which is 340 m/s in air, 1400 m/s in water) Commented [y1]: some boundary moves quickly something moves very quickly on the medium (presses on the molecules) and presses them together. Any wave can be decomposed into a sum of sines. The process of breaking a wave into its sine-wave components is called frequency (fourier) analysis. Individual sine waves are frequency components of the original wave: the set of all these components is the frequency spectrum. Wavelength (cid:540) is the distance from one peak to the next related to speed and frequency by (cid:2019)=(cid:3049)(cid:3033) each cycle 1/f. The period of a wave is the duration of. Frequency is the main factor that determines sense of pitch.
