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:
“A general loathing of a gang or sect usually has some sound basis in instinct.”
—Ezra Pound (1885–1972)
“He is said to have been the last Red Man
In Acton. And the Miller is said to have laughed
If you like to call such a sound a laugh.”
—Robert Frost (1874–1963)
“How good bad music and bad reasons sound when we are marching into battle against an enemy.”
—Friedrich Nietzsche (1844–1900)