Frequently Asked Questions (FAQ's)
Question:
What is noise?
Answer: Noise is a sound, that is not desired to be heard.
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Question:
What audio frequencies can be heard by the human ear?
Answer: The human ear can hear sound wave frequencies in the approximate range of 20 to 20,000 Hertz.
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Question:
How fast does sound waves travel?
Answer: At sea level, sound vibrations travel in the air at a speed of approximately 1087 ft. (331 m) per second.
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