PSY280H5 Lecture Notes - Lecture 10: Incus, Spectrogram
Document Summary
Increasing sound pressure increased db; but not one to one ratio because its on a log scale; doubling sound pressure= an increase of 6 db of sound: whispering in a library= 40 db, we are not equally sensitive to all different frequencies of sound, we did a little demonstration of hearing; after the age of 10, everyone"s hearing begins to decline; and as we get older there is a larger decline, but this is relative; there is an independent rate of hearing decline; some people could hear the 16khz and others could not (variation, we get really good around the 500 to 600 khz range, as we increase the pressure of sound, our perception of loudness correspondingly increases to a proportionate degree, huge increases in sound pressure, have relatively little influence on our perception of noise, auditory adaptation takes no time at all; in contrast dark adaptation curve (vision) takes about 30 minutes;
