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:
“my gentle-hearted Charles, to whom
No sound is dissonant which tells of Life.”
—Samuel Taylor Coleridge (1772–1834)
“I compare her
to a fallen leaf.
The noiseless wheels of my car
rush with a crackling sound over
dried leaves as I bow and pass smiling.”
—William Carlos Williams (1883–1963)
“I don’t want to listen; your words sound like the truth but the truth is probably a sin.”
—Jacques Roumain (1907–1945)