First of all, we should pay attention to the acoustic characteristics of indoor space to ensure that the acoustic performance of the left and right sides of the speaker is symmetrical, and the sound absorption and reflection characteristics of the left and right sides are consistent. For example, if both sides of a room are walls, we can put phonetic symbols in symmetrical positions, but this does not guarantee the consistency of their acoustic characteristics. If one side of the room is a brick wall and the other side is a glass window, if the window is closed, the acoustic performance of both sides is similar; However, if one side of the window is opened, the acoustic characteristics of both sides will be asymmetric, and there will be sound loss on the side of the window. Similarly, if one side of the room is a brick wall and the other side is a wooden wall, the acoustic characteristics will be asymmetric, and the side with the window will lose sound. Similarly, if one side of the room is a brick wall and the other side is a wooden wall, the sound absorption characteristics of the wooden wall are strong, similar to the effect when opening a window. At this time, the sound absorption coefficient of one side of the brick wall should be increased, and sound absorption materials can be laid on the brick wall to keep the acoustic characteristics on both sides as balanced as possible.

How to build a professional home theater audio layout?

2

The main speaker plays the main music, character dialogue and effect sound signals to set off the main atmosphere of the picture and the music background sound effect of the scene. The left and right speakers with the same rated power, frequency response bandwidth and smoothness should be selected, and the acoustic characteristics should be consistent when placed, so that the left and right main channels can be well balanced and matched.

three

The center speaker is used to convey the dialogue between characters, and its rated power, frequency response bandwidth, smoothness and other characteristics should be consistent with the main speaker, and its rated power can be slightly less than that of the main speaker. The center speaker can be placed above or below the TV. Because it is close to the TV, the center speaker must be antimagnetic, otherwise it will magnetize the picture tube. The front speaker should be in line with the center speaker, or in front of the center speaker. Never put the front speaker behind the center speaker.

How to build a professional home theater audio layout?

four

Surround speakers provide ambient sound, creating a uniformly diffused closed surround sound field. The frequency band of the surround speaker is narrow, and the rated power is less than that of the main speaker. According to the conditions of indoor space, surround speakers can be placed in many ways, such as in front of the listener, behind the side, slightly higher than the listener's head, and the two surround speakers must be placed symmetrically. The common method is that both speakers face the listener, or both speakers face the wall and transmit to the listener through the reflection of the wall, or both speakers face the ceiling and transmit to the listener through the reflection of the ceiling.

five

Subwoofers are used to produce powerful bass effects to obtain unique sound effects, such as dull gunshots and explosions. The subwoofer can usually be placed between the left front speaker and the center speaker.