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:
“How good bad music and bad reasons sound when we are marching into battle against an enemy.”
—Friedrich Nietzsche (1844–1900)
“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)
“A person is far more likely to appear to have sound character because he persistently follows his temperament than because he persistently follows his principles.”
—Friedrich Nietzsche (1844–1900)