SAR SH 531 Lecture Notes - Lecture 6: Vocal Tract, Otitis, Public Health
4 Oct 2018
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Document Summary
Sound can be de ned in terms of its physical properties: there is a force/pressure on air particles, which move air particles and they end up moving particles in our ear (which creates vibrations in our ear). A particle disturbance in an elastic medium, which is propagated through the medium. Sound also can be considered in terms of perception: a particle disturbance in an elastic medium, which is capable of producing a sensation in the human ear. Measuring sound: intensity (decibels, db), frequency (hertz, hz. Our perception of frequency is the pitch), duration (the duration of how long the wave form is continuing to occur) Perceiving sound: loudness, pitch, time, associations, memories. Different sounds create for us different memories, feelings, and this plays a role in how we are perceiving them. Development of the pinna: this is one of the rst things to develop in the ear.
