LING 221 Study Guide - Midterm Guide: Sound Intensity, Mississippi Highway 18, Formant

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Periodic: pressure wave is a specific shape that is repeated multiple times. Aperiodic: pressure variation is random (kind of like radio static. Instantaneous disturbance that is not drawn out. (door slam) Oscillation: moving back and forth like a pendulum. Propagation: the way something transmits through a medium (light, sound etc. ) Frequency is the number of times a cycle happens over a given amount of time (that amount of time can change) The frequency of a clock pendulum is. Hertz is how many cycles there are per second. The amount of time required for each cycle. A simple sine wave because it is one single note without any other interference or any other harmonics. Consists of simple sine waves that are added together to form one wave. The frequency at which the complex wave repeats. This is also the greatest common factor of all the component frequencies. One complete cycle corresponds to the opening and closing of vocal folds.

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