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:
“There was never a sound beside the wood but one,
And that was my long scythe whispering to the ground.”
—Robert Frost (1874–1963)
“O, I am smitten with a hatchet’s jaw;
And that in deed and not in word alone.
chorus: I thought I heard a sound within the house
Unlike the voice of one that jumps for joy.
He splits my skull, not in a friendly way,
Once more: he purposes to kill me dead”
—A.E. (Alfred Edward)
“Comrades, leave me here a little, while as yet ‘tis early morn:
Leave me here, and when you want me, sound upon the bugle-horn.”
—Alfred Tennyson (1809–1892)