Music associated with the Creole people, of mixed European and African descent, in the gulf region of the United States, particularly Louisiana. For further discussion see articles on Jazz , New orleans , New orleans music , Swamp pop , and Zydeco . louis moreau Gottschalk integrated Creole folk music into his compositions. Well-known Creole musicians include ...
Murray Campbell and Mary Térey-Smith
The repetition of sound after a short time interval. In addition to the applications discussed below the term is used for a signal-processing device (also known as a delay) that produces a slightly delayed playback of sounds either by a tape loop or by digital delay; ...
Many types of instruments throughout the world have been assigned male, female, or sometimes ambivalent gender. These attributes, rooted in prehistoric animism and sexual dualism, bear on the perceived nature of the instruments themselves (which might be thought to embody male or female spirits, or to personify abstract sexualities) and also on their musical and social functions and the circumstances surrounding their making and playing. Even if an instrument is not given a gender, customs may govern whether it is appropriate for use by men or women or both. An attribution depends on many aspects of an instrument and a society’s attitude toward those aspects, among them morphology (e.g. phallic, like many bagpipes; womblike, like many bells and drums; or evoking pregnancy, like the rounded body of a lute), material, means of sound production (e.g. blowing, beating, stroking), high or low pitch, sound quality and power or affect, degree of apparent physical effort involved in playing, and playing posture (e.g. many Victorians considered holding the cello between the legs unladylike; in Kerala, India, a woman who raises her hand near her breast in order to strike a drum could appear immodest)....
Alex U. Case
Form factors for loudspeakers designed for proximity to the ear. Ear buds and in-ear headphones are inserted into the ear canal, circum-aural headphones fit over the entire outer ear, and supra-aural headphones are placed against the outer ear. The addition of a microphone near the mouth produces a headset useful for two-way communication....
Alex U. Case
A transducer that converts a signal from the electrical domain into the acoustical, transforming a pattern of changing electrical voltages into a similar pattern of changing air pressures.
Whenever electricity flows, it is accompanied by a magnetic field. Play an audio signal through a wire, and a changing magnetic field forms around it, a magnetic analogy for the electrical variations within. Let that wire’s changing magnetism interact with a fixed magnetic field and it will be pushed and pulled back and forth, a mechanical realization of the electrical signal. When that conductor has a flat ribbon shape, it can energize the air directly and is the basis for a ribbon loudspeaker. Make the conductor a coil of wire and attach it to a piston light enough to vibrate quickly, yet rigid enough to move the air around it, and a moving coil loudspeaker is born....
Sigalia Dostrovsky, Murray Campbell, James F. Bell and C. Truesdell
This article is concerned with the history of vibration theory as it relates to music. For further information see Acoustics and Sound.
, revised by Murray Campbell
The basic ideas of the physics of music were first obtained in the 17th century. Acoustic science then consisted mainly in the study of musical sounds; in fact, music provided both questions and techniques for the study of vibration. Music gave experience in comparing the pitch and timbre of tones, and so the means for careful experiment on sound; musical instruments offered empirical information on the nature of vibration; and, rather remarkably, the Pythagorean ratios of traditional music theory provided frequency ratios....
A stable sound or note.