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A compression driver (cylindrical box at rear) on a midrange horn speaker used in a home audio system A compression driver (A) in a horn loudspeaker consists of a metal diaphragm (blue) vibrated by the audio signal current in a coil of wire (red) between the poles of a cylindrical magnet (green) .
A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet, attached to a horn, a flaring duct to conduct the sound waves to the open air.
This kind of system could be assembled from separate components (e.g. a splitter-router-matrix mixer, a processor, amplifiers and control panels), though knowledge of professional audio equipment and automation systems would be required. More commonly, commercial systems are employed to accomplish these tasks.
Power compression is usually considered a long-term problem, arising over time with extended strong signal sent to the loudspeaker. However, if the change in resistance is short term, observed as heating up and cooling down with each cycle of low frequency waves, then the loudspeaker will increase in total harmonic distortion .
Modern home cinema systems typically augment the audio output from a DVD player or Blu-ray player with a multi-channel power amplifier and anywhere from two speakers and a stereo power amp (for stereo sound) to a 5.1 channel amplifier and five or more surround sound speaker cabinets (with a surround sound system).
Compression is often applied in audio systems for restaurants, retail, and similar public environments that play background music at a relatively low volume and need it compressed, not just to keep the volume fairly constant, but also to make quiet parts of the music audible over ambient noise.
Pages in category "Audio compression" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. A. Audio compression (data) L.
The first 2.1 audio system from Bose to include a DVD player was the "3-2-1", released in 2001. [1] The "3-2-1 GS" model was introduced in 2003, named for its use of Bose "Gemstones" small speakers, which have two drivers pointing forward and one pointing to the side.
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