Sound
Similarly, a source of sound can have many different frequencies mixed. A musical tone's timbre is characterized by its harmonic spectrum. Sound in our environment that we refer to as noise includes many different frequencies. When a sound signal contains es, distributed equally over the audio spectrum, it is called white noise.
Read more about this topic: Frequency Spectrum
Famous quotes containing the word sound:
“Music proposes. Sound disposes.”
—Babette Deutsch (1895–1982)
“When poets go off the boil, they sound like bumble bees; when critics do, they sound like sewing machines.”
—Mason Cooley (b. 1927)
“It was the unfailing and characteristic sound of those lakes.”
—Henry David Thoreau (1817–1862)
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