5. 1 channel refers to the center channel, front left and right channels, rear left and right surround channels, and the so-called 0. 1 channel subwoofer channel. A total of 6 speakers can be connected to a system.
5. 1 channel has been widely used in all kinds of traditional cinemas and home cinemas. Some well-known recording and compression formats, such as Dolby AC-3(Dolby Digital) and DTS, are based on 5. 1 sound system, in which "0. 1" channel is a specially designed subwoofer channel, which can produce a frequency response range of 20.
Extended data
The so-called 5. 1 system means: "5" means two main speakers (front speakers), two surround speakers and 1 center speakers * * 5 speakers, while ".1" means a subwoofer, which is used to further contrast the environment, also called a subwoofer.
5. 1 Outputs sounds in five directions: left (L), middle (C), right (R), left rear (LS) and right rear (RS), which makes people feel like they are in a concert hall. Reasonable power amplifier configuration is responsible for 70% sound output of the film. Although it is small, it is a great responsibility.
A set of surround speakers composed of dual-frequency suits has high power and wider sound field, which has a wonderful experience of invisibly expanding space. Enough to match the effect of a small home theater.
Baidu Encyclopedia -5. 1 Channel