Week 3 notes 1-22 and 1-24

Week 3 notes 1-22 and 1-24 - Introduction to Audiology...

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1 Introduction to Audiology Fundamentals Hearing Science
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2 Learning Objectives Be able to describe the components of sound. Be able to list the properties of a sound-transmitting medium. Be able to describe the properties of sinusoidal motion. Be able to describe the properties of complex sounds. Be able to identify periodic and aperiodic sounds. Be able to define resonance properties of vibrating objects. Be able to add sound levels. - Readings: Lass, NJ & Woodford, CM (2007) Chapter 1: Basic Acoustics (pp 2-4). In Hearing Science Fundamentals. St. Louis, MO: Mosby Elsevier. Durrant, JD & Lovrinic JH (1995) Chapter 3-4: Types of Sound (pp 76-78) Chapter 3-5: Intensity and SPLs of Complex Sounds (pp 80-83). In Bases of Hearing Science 3 rd Ed ., Balitomore. MD: Willliams & Wilkins.
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3 Components of Sound Condition of disturbance of particles in a medium. 3 Components needed for production Energy source Body capable of vibration Medium capable of transmission
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4 Transmitting Medium 3 Properties common to transmitting media Mass – any form of solid matter Elasticity – ability to resist permanent distortion Inertia – principle that states a body in motion tends to stay in motion while a body at rest tends to stay at rest Resistance – basic physical property in which energy is dissapated
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Sinusoidal Motion Simple Harmonic Motion Particles are displaced perpendicular to the direction of the disturbance Tuning fork Clock pendulum Sine wave tracing Figure 1-2 page 7
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Week 3 notes 1-22 and 1-24 - Introduction to Audiology...

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