- published: 26 Feb 2016
- views: 28494
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.
Sound is a sequence of waves of pressure that propagates through compressible media such as air or water. (Sound can propagate through solids as well, but there are additional modes of propagation). During propagation, waves can be reflected, refracted, or attenuated by the medium.
The behavior of sound propagation is generally affected by three things:
When sound is moving through a medium that does not have constant physical properties, it may be refracted (either dispersed or focused).
The perception of sound in any organism is limited to a certain range of frequencies. For humans, hearing is normally limited to frequencies between about 20 Hz and 20,000 Hz (20 kHz), although these limits are not definite. The upper limit generally decreases with age. Other species have a different range of hearing. For example, dogs can perceive vibrations higher than 20 kHz, but are deaf to anything below 40 Hz. As a signal perceived by one of the major senses, sound is used by many species for detecting danger, navigation, predation, and communication. Earth's atmosphere, water, and virtually any physical phenomenon, such as fire, rain, wind, surf, or earthquake, produces (and is characterized by) its unique sounds. Many species, such as frogs, birds, marine and terrestrial mammals, have also developed special organs to produce sound. In some species, these produce song and speech. Furthermore, humans have developed culture and technology (such as music, telephone and radio) that allows them to generate, record, transmit, and broadcast sound. The scientific study of human sound perception is known as psychoacoustics.
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Plot: Follow Stockholm based rock band Our Untold Story during their first 2 years as a band. Watch them fight their way up the ranks on their journey through the world of music. Get up and close with the members as they entertain, create and spread the inner workings of their souls! - Who the hell are Our Untold Story!?
Genres: Music,Actors: Sule Rimi (actor), Richard J. Staniforth (producer), Richard Pawelko (editor), Richard Pawelko (writer), Richard Pawelko (director), Andrew Halley (actor), Andrew Halley (actor), Jenny Ayres (actress), Rhodri Thomas (actor), John Hardy (composer), Mary Simmonds (producer), Dave Williams (composer),
Plot: THE PLOT An aristocratic lunatic murders his family then kills himself. A young tree takes root by his grave and over time absorbs its evil spores. Two hundred years later a storm brings the tree crashing to the ground after which part of it is fashioned into a guitar. A guitar with a terrible appetite for blood, usually that of the unfortunate musicians who acquire the horned instrument and become its prey. That guitar might be red but it ain't paint! It's a musical monster. A descendant from one of Europe's most eminent vampire hunting families pursues the killer with the grudging support of a local Police Inspector who is stumped by the strange murders. The deaths are connected by an attendant roadie who works his way in and out of the music business. We follow his career and his ultimate dependence on the guitar for fame and glory. He finally takes part in a showdown that involves a musical shoot out between the forces of good and evil. It's him versus Van Hellbent Junior (the good guy) in a contest that can turn us into angels or devils.
Genres: Comedy,Actors: Elbertus van der Beek (actor), Elbertus van der Beek (actor), Jon Schmidt (actor), Paul Anderson (actor), Michael Hunter (director), Michael A. Dunn (producer), Steven Sharp Nelson (actor),
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Plot: 'Lagos' is a city portrait of the second biggest city in Africa, which could grow well into the third biggest city worldwide by 2025 (UN). It's a virtual day in a Lagos which gained the fame of the NYC of Africa. 'Lagos is the place where you can make it!' Following six protagonists through the stream of traffic, along the rhythm and the unique energy of the city going to the workplaces and centres of religion and music, the film encounters the commercial drive, the force of believe and the omnipresent musical and spiritual heritage of legend Fela Kuti. Such the film obtains an inside perspective of an urban African society in the midst of rapid social change.
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Genres: Adult,Actors: Susan Sheridan (actress), Wayne Forester (actor), Richard Nash (director), Richard Nash (writer), Richard Nash (producer), Kate Lock (actress), Joseph Attenborough (actor), Michelle Esclapez (actress), Duncan O'Neill (producer), Duncan O'Neill (editor), Ben Hicks (actor), Jeremy Vass (composer), Brian Bowles (actor),
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Keywords: director, dv, dv-film, farce, mockumentary, setActors: Alf Humphreys (actor), Philip Granger (actor), Hiro Kanagawa (actor), Krista Johnston (miscellaneous crew), Babs Chula (actress), Barry W. Levy (actor), Jerry Wasserman (actor), Catherine Lough Haggquist (actress), Craig March (actor), Chilton Crane (actress), Frank Cassini (actor), Kurt Max Runte (actor), Daryl Bennett (composer), Peter Hanlon (actor), Jim Guttridge (composer),
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