As an age dependent and practical matter, in most cases, few adults can hear
a. 4,000 Hz.
b. 7,000 Hz.
d. None of the above.
What is the difference between the terms loudness and intensity?
a. About several Hz.
b. Loudness is the observer's impression of the sound intensity received.
There is no difference.
d. The range of sound.
a. Noise, normal or abnormal, is simply defined as unwanted sound, whether it is
a pure tone, a complex of tones, or unwanted speech or music.
b. Noise may be a single sharp, squeaky, or piercing sound of short or long
duration that is unwanted by the person receiving.
a and b.
d. A conveyer of information.
17. Which statement is correct concerning steady noise?
a. Intermittent, continuous, or fluctuating noise with the sound level varying over
a wide range.
b. A single complex sound within octave bands.
Noise we sometimes hear.
d. Noise that does not fluctuate nor vary in sound level range.