Surround sound speaker
Surround sound systems refer to sound reproduction systems that use multiple channels and speakers to provide a listener with simulate placement of sound sources. In surround sound systems a stereophonic pair of signals from a source such as prerecorded audio or live transmissions of audio signals is processed to yield a set of signals for the purpose of feeding several loudspeakers placed around the listening area, so as to give an impression of spatially surrounding the listener with the sounds. A typical surround sound signal includes at least left front, center front, right front, left rear and right rear signals. Typically, the listener is positioned between multiple speakers. By playing a sound at different intensities through one or more of the speakers, the sound is positioned with respect to the listener. The most well known surround sound mode is presented by Dolby Laboratories marketed under the trademark Dolby Surround Sound. Dolby encodes video and film soundtracks for active decoding of the soundtrack thereby delivering five discreet channels of audio. Modern surround-sound systems capitalize on diverse speakers to generate both stereophonic output, as well as synchronized shifting of isolated sounds to individual speakers disposed around the listener. Proper speaker placement allows the listener to perceive audio signals emanating from the front, rear, or side depending on the speaker placement. The ideal speaker configuration employs left and right front speakers, left and right rear speakers, and a single center front speaker.
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