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Questions and Answers
What is the term used to describe the phenomenon when air molecules come closer to each other?
What is the term used to describe the phenomenon when air molecules come closer to each other?
- Displacement
- Propagation
- Compression (correct)
- Rarefaction
In the propagation of sound waves, what sets the surrounding air molecules into vibration?
In the propagation of sound waves, what sets the surrounding air molecules into vibration?
- Rarefaction
- Pressure difference
- An air molecule vibrating (correct)
- Compression
What does increased pressure cause the Tympanic membrane to do?
What does increased pressure cause the Tympanic membrane to do?
- Vibrate vigorously
- Move inward (correct)
- Remain stationary
- Move outward
Which waveform represents vibration at a single frequency that repeats?
Which waveform represents vibration at a single frequency that repeats?
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What determines what we can hear according to the text?
What determines what we can hear according to the text?
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Study Notes
Speech Science Acoustics
- Speech combines various systems and structures in a unique way.
Systems of Speech
- There are five systems of speech: • Respiratory system: responsible for breathing and providing airflow • Phonatory system: involves vocal folds, producing vocalizations • Articulatory system: includes the nasal cavity, modifying sound waves • Resonatory system: acts as a frequency filter • Nervous system: coordinates the speech process
Acoustics of Speech
- Acoustics is the physics of sound, concerned with: • How speech sounds are produced (generation, transmission, and modification of sound waves) • Measuring and describing speech sound waves
- Acoustic phonetics: the study of speech sound waves
Conditions for Sound to Occur
- Two necessary conditions for sound to occur: • Environment (medium): physical media such as solids, liquids, and gases (e.g., air, water) • Movement (energy source): provides energy to set particles in the environment into action
- Examples of vibrating sources: • Tuning fork • Vocal folds (in the human body)
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Description
Test your knowledge of speech systems and acoustics with this quiz. Explore the categorization of speech systems and the aspects of sound that are of interest in acoustics.
