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 sound of a kiss is not so loud as that of a cannon, but its echo lasts a great deal longer.”
—Oliver Wendell Holmes, Sr. (1809–1894)
“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)
“Chippenhook was the home of Judge Theophilus Harrington, known for his trenchant reply to an irate slave-owner in a runaway slave case. Judge Harrington declared that the owner’s claim to the slave was defective. The owner indignantly demanded to know what was lacking in his legally sound claim. The Judge exploded, ‘A bill of sale, sir, from God Almighty!’”
—For the State of Vermont, U.S. public relief program (1935-1943)