PSYB51H3 Chapter 9: Chapter 9
Document Summary
The function of hearing: many fundamental principles apply to vision, hearing, and all the other senses, however, each sense developed at different periods in our evolutionary history and in response to different environmental challenges. The more intense a sound wave is, the louder it will sound: pitch: the psychological aspect of sound related mainly to perceived frequency. The sonar systems used by some bats use sound frequencies above 60,000 hz: humans hear across a wide range of sound intensities. Each frequency component in such a sound is called harmonic. the rst harmonic, called the fundamental frequency, is the lowest-frequency component of the sound. Each instrument is producing a tone with the same fundamental frequency (262 hz note c4, or middle c), and the same harmonics (524 hz, 786 hz, 1048 hz, and so on). Timbre quality is conveyed by harmonics and other high frequencies.
