What is 5.1 channel

5.1 channels have been widely used in various traditional theaters and home theaters. Some of the more well-known sound recording compression formats, such as Dolby AC-3 (Dolby Digital), DTS, etc., are based on the 5.1 sound system. The “5.1” channel is a specially designed subwoofer channel that can produce subwoofers with a frequency response range of 20 to 120 Hz. In fact, the 5.1 sound system comes from 4.1 surround, the difference is that it adds a center unit. This center unit is responsible for transmitting the sound signal below 80Hz, which is helpful to strengthen the human voice when watching the film, and concentrate the dialogue in the middle of the entire sound field to increase the overall effect. I believe that every friend who has really experienced Dolby AC-3 sound effects will be impressed by the 5.1 channel.

The 5.1 channel refers to the center channel, the front left and right channels, the 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 channels have been widely used in various traditional theaters and home theaters. Some of the more well-known sound recording compression formats, such as Dolby AC-3 (Dolby Digital), DTS, etc., are based on the 5.1 sound system. The “0.1” channel is a specially designed subwoofer channel that can produce subwoofers with a frequency response range of 20 to 120 Hz.

The center channel speaker is responsible for reproducing and cooperating with the actions on the screen. Most of the time, it is the part responsible for the character’s dialogue; the front left and right channel speakers are used to compensate for actions outside the center of the screen or that cannot be seen from the screen And other sounds; the rear surround sound speakers are responsible for the periphery and the entire background music, making people feel like they are in the center of the entire scene. The shock of a galloping horse and the effect of an airplane roaring overhead are bestowed by it; while the sound of motors, bombers, or bass drums and other exciting subwoofers are handled by the subwoofer. The advantage of this system is that it can obtain a clearer front sound, an excellent sound field image and a wider sound field as well as a real three-dimensional ring sound, so that you can listen to the unprecedented subtle sound movement in the background.

In fact, the 5.1 sound system comes from 4.1 surround, the difference is that it adds a center unit. This center unit is responsible for transmitting the sound signal below 80Hz, which is helpful to strengthen the human voice when watching the film, and concentrate the dialogue in the middle of the entire sound field to increase the overall effect.

The traditional two-channel system has gradually faded out, and the 5.1-channel audio processing system is a perfect audio-visual solution. We often hear “Dolby 5.1 Channel”, but many people don’t know the specific meaning of Dolby 5.1 Channel. Let’s first introduce what “Dolby 5.1 channel” is. In fact, 5.1 channel uses 5 speakers and 1 subwoofer to achieve an immersive way of playing music. It is developed by Dolby. , So it is called “Dolby 5.1 Channel”. In the 5.1-channel system, five directions are used: left (L), center (C), right (R), left rear (LS), and right rear (RS)

The output sound makes people feel as if they are in a concert hall. The five channels are independent of each other, and the “.1” channel is a specially designed subwoofer channel. It is precisely because there are speakers on the front and rear, left and right, so it will produce the real feeling of being surrounded by music.

Among various sound field decoding and sound field technologies, the most common, or the most standard, is 5.1 channel output, such as Dolby 5.1, DTS5.1, THX5.1, etc. Other standard decoding methods can also pass 5.1 well. Channel output. The 5.1-channel output includes the center channel, the front main left/right channel, the rear left/right surround channel, and the so-called “0.1” subwoofer channel. At least 6 speakers can be connected in total. The center channel is responsible for replaying the character’s dialogue most of the time; the front main left/right channel is used to compensate for actions and other sounds that are outside the center of the screen or cannot be seen from the screen; the rear surround sound effect It is responsible for the peripheral and the entire background music, which makes people feel like you are in the center of the entire scene. The shock of the galloping horses and the effect of the jets whizzing overhead are thanks to it; and the sound of the motor, the sound of the bomber or The thrilling bass, such as the bass drum, is handled by the subwoofer.