Sound Dynamics
About the Lecture
The lecture Sound Dynamics by Jared Rovny, PhD is from the course Sound.
Included Quiz Questions
Two sound waves interfere. How is the total waves amplitude calculated based on the amplitudes of each individual wave?
- The amplitude of the total wave at each point is the sum of the amplitudes of each individual wave at that point.
- The amplitude of the total wave at each point is the subtraction between the amplitudes of each individual wave at that point.
- The amplitude of the total wave at each point is a complicated function of the amplitudes of each wave at that point.
- The amplitude of the total wave at each point is found by summing the absolute values of the amplitudes of each individual wave at that point.
- The amplitude of the total wave at each point is found by multiplying the amplitudes of each wave at that point.
Two sound waves of frequencies f₁ and f₂ interfere. The difference between the frequencies is small compared to the frequencies themselves. What is the beat frequency of the total wave?
- |f₁ - f₂|
- |f₁ - f₂|/2
- 2|f₁ - f₂|
- f₁ + f₂
- (f₁ + f₂)/2
A musician is trying to tune his instrument by comparing the note produced by its instrument to the note produced by a known source. The known source is producing a note with a frequency of 440 Hz. If the musician hears a beat frequency of 2 Hz, what is the frequency of the note produced by the instrument? Choose the best answer.
- 442 Hz or 438 Hz
- 4 Hz
- 336 Hz
- Its either 444 Hz or 336 Hz
- 444 Hz
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Author of lecture Sound Dynamics
Jared Rovny, PhD
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