PSYC 212 Study Guide - Midterm Guide: Sound Localization, Phoneme, Missing Fundamental
Document Summary
Sound is the rhythmic changes in air pressure. When things vibrate they generate changes in pressure, that energy is absorbed, and the mechanical energy is converted into neural impulses. We can hear the richness around us by function of the variety of air fluctuations. Frequency is how many times a second/given period something happens in hz. One cycle is when the wave goes from 0, down, up and back to 0. So, let"s say that the x axis is one second, you count the number of cycles. If you have 8 more cycles in the first graph than in the second one, the first ones are more frequent during that given time period, so the frequency is higher. As you increase the frequency, you have to decrease the length of time that a wave takes. Change of the frequency over time change of amplitude over time.
