CSD-2464 Chapter Notes - Chapter 2: Sine Wave, Abscissa And Ordinate, Tuning Fork
24 Jan 2017
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Document Summary
The study of sound is called acoustics. It is necessary to have a clear understanding of the nature of sound in general to understand the production and perception of speech. Sound is an audible disturbance in a medium caused by a vibrating source such as tuning fork or the vocal folds. Tuning fork vibrates only at one specified frequency: the tines or prongs of the tuning fork vibrate in simple harmonic motion when it is stuck. Elasticity is the resting force that causes an elastic medium to bounce back when stretched or displaced. Inertia the tendency for motion or lack of motion to continue. The forces of elasticity and inertia are almost always simultaneously at work, although at any moment either one of them may be dominant. Movement between tuning fork and air particles is like a swing hanging from the branch of the tree. Velocity is the speed of an object. Amplitude is the extent of the motion.
