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The speed of sound depends on the medium the waves pass through, and is a fundamental property of the material. The first significant effort towards measurement of the speed of sound was made by Isaac Newton. He believed the speed of sound in a particular substance was equal to the square root of the pressure acting on it divided by its density:
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording .
In 1927, the sound film The Jazz Singer was released; while not the first sound film, it made a tremendous hit and made the public and the film industry realize that sound film was more than a mere novelty. The Jazz Singer used a process called Vitaphone that involved synchronizing the projected film to sound recorded on a disc. It essentially ...
It is concerned with both natural and man-made sound and its generation underwater; how it propagates, and the perception of the sound by animals. Applications include sonar to locate submerged objects such as submarines , underwater communication by animals, observation of sea temperatures for climate change monitoring, and marine biology.
Digital audio is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. For example, in CD audio, samples are taken 44,100 times per second, each with 16-bit resolution.
The human voice consists of sound made by a human being using the vocal tract, including talking, singing, laughing, crying, screaming, shouting, humming or yelling. The human voice frequency is specifically a part of human sound production in which the vocal folds (vocal cords) are the primary sound source.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
Bells for the intention of producing functional sound are usually made by casting bell metal, an alloy of bronze. Much experimentation with composition has existed throughout history; the bells of Henry II had nearly twice as much copper as tin, while much earlier Assyrian bronze bells had ten times the amount of copper to tin. [12]