CMD 278 Lecture Notes - Lecture 6: Fundamental Frequency, Musical Tone
20 Oct 2016
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Until now, waves have been discussed as traveling infinitely in space (cid:523)(cid:498)completely free boundary(cid:499)(cid:524) Part of the wave is reflected and part is transmitted. Can you think of when this occurs in your ear: reverberations = multiple sounds which are reflected continuously in a. A wave may be reflected off an object confined space; the sound"s existence is prolonged. A wave can also be absorbed by the object it has struck. When the two waves no longer overlap, they go back to their original shapes. Constructive interference = when 2 waves are moving in a positive direction when. Interference can be constructive or destructive they meet and their effects add. Destructive interference = when one wave is positive and one is negative and the waves cancel each other out when they meet. Periodicity = when the wave shape repeats itself over time, as a function of time (pure tone, pendulum swinging)
