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5.1 surround sound ("five-point one") is the common name for surround sound audio systems. 5.1 is the most commonly used layout in home theatres. [1] It uses five full-bandwidth channels and one low-frequency effects channel (the "point one"). [ 2 ]
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In the original movie theater implementation, the LFE was a separate channel fed to one or more subwoofers. Home replay systems, however, may not have a separate subwoofer, so modern home surround decoders and systems often include a bass management system that allows bass on any channel (main or LFE) to be fed only to the loudspeakers that can ...
The most basic and economical system could be a DVD player, a standard-definition (SD) large-screen television with at least a 27-inch (69 cm) diagonal screen size, and an inexpensive home theater in a box surround sound amplifier and speaker system with a subwoofer. A more expensive home cinema set-up might include a Blu-ray disc player, home ...
Dolby Surround (1982) was the first home audio system to use a rear channel. It and its successor, Dolby Pro Logic (1987), used a single rear surround channel, but often using two speakers connected in anti-phase or a dipole radiator , as shown in the speaker configuration diagram to the right in gray.
Typical layout of loudspeakers in a 5.1 home theater loudspeaker system. Block diagram of a 5.1 channel bass management system, with nominal filtering characteristics. There are notation differences between the pre-bass-managed signal and after it has passed through the bass manager. For example, when using 5.1 surround sound: [2] [3]
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