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:
“The spotted hawk swoops by and accuses me, he complains of my gab and my loitering.
I too am not a bit tamed, I too am untranslatable,
I sound my barbaric yawp over the roofs of the world.”
—Walt Whitman (1819–1892)
“Let children know you are human. It’s important for children to see that parents are human and make mistakes. When you’re sorry about something you’ve said or done, apologize! But don’t sound guilt ridden. It is best when parents apologize in a manner that is straightforward and sincere.”
—Saf Lerman (20th century)
“It’s precisely the disappointing stories, which have no proper ending and therefore no proper meaning, that sound true to life.”
—Max Frisch (1911–1991)