003:111  Basic Acoustics for Speech and Hearing:
Acoustics Introduction
Course Homepage Contact Info:
Instructor: Eric Hunter [email protected]
Informative Links:
University of Iowa
U of I: Dept. of Speech Pathology and Audiology.
National Center for Voice and Speech (NCVS)
Acoustical Society of America (ASA)
American Speech-Language-Hearing Association
Speech/Voice/Acoustics Links
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Oscillation (like a mass on a spring)  about an equilibrium point can be represented with a sine wave in time.

Frequency of  oscillation is measured in
hz (hertz) with amplitude in dB (Decibels)
Acoustic and Audio fun:
Goldwave (highly recommended by Eric)
Free Spectrogram for PC (highly recommended)
The source creates a disturbance (bumps the particles close to it).  This disturbance is then propagated through the medium without the particles themselves really moving from their equilibrium.  Both the source and the medium need mass (inertia) and elasticity (recoil) in order to oscillate and/or propagate.
Sounds, Complex Sounds
Spectrum
Spectrogram
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