PHYS 1010 Lecture Notes - Lecture 13: Sound Intensity, Sound, Fundamental Frequency
11 Oct 2016
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Document Summary
Music is the art of the sound that has different character. Musical sounds have periodic tones, or musical notes. The line that separates music and noise. Determined by frequency of sound waves as received by the ear. Determines the perceived loudness of the sound. Determined by presence and relative intensity of the various partials. Musicians give different pitches different letter names: a, b c, d, e, f, g. Notes a through g are all notes within one octave. Multiply the frequency on any note by 2 and you will have the same note at a higher pitch in the next octave. A piano keyboard covers a little more than 7 octave. High pitched sounds used in music are most often less than 4000 hz, but the average human ear can hear sounds with frequencies up to 18,000. Some people and dogs can hear tones of higher pitch. As you get older, people can"t hear the upper level as well.
