There are three ways to install the speaker system in the sound engineering: surface installation, concealed installation and ceiling installation. Surface mounted means that the speaker system is directly installed in the visible area of ​​the audience hall; concealed means that the speaker system is installed in a flat roof or in a table frame or wall, and hoisting means that the speaker system is hung on the hook, hook or basket There can be two forms of concealed hanging and open hanging on the ceiling and on the wall.
First, the main points of the speaker installation
â‘ The sound is not blocked and can be directed to the auditorium with little loss of sound energy.
②Install and adjust the direction, the sound radiation direction of the speaker can be adjusted intuitively on the spot, to ensure that a relatively direct sound can be obtained in each area of ​​the auditorium.
â‘¢ Pay full attention to safety.
â‘£Be careful not to let the speaker affect the overall shape of the hall.
Second, the concealed points of the speaker
â‘ The reserved installation hole must be enough people to adjust the direction of the speaker system
â‘¡ There are two processing methods for the speaker system installed in the ceiling.
One is that the speakers are placed parallel to the ceiling. The speakers are placed directly on the ceiling, and the sound is directed from the ceiling directly to the corresponding auditorium. This method is usually suitable for the venue sound supply system of the stadium, the bass speaker system, and the distributed background speaker system.
The other is that the sound box is installed in the anti-sound cover of the ceiling, so as to avoid the escape of sound energy in the flat roof. There should be a large enough area on the flat roof where the reflector is installed, and the exit of the anti-sound hood itself must have enough space according to the sound radiation angle of the speaker so that the sound coverage of the speaker is not affected. The anti-acoustic cover is made of hardwood, and is firmly fixed on the top grid to avoid resonance phenomenon caused by the work of the speaker and destroy the sound quality of the reproduced sound.
â‘¢The mask used for concealment must be transparent
â‘£The width of the decorative grid should be less than 1/10 of the diameter of the installed paper cone, the opening ratio of the grid should be greater than 75%, and the decorative grid should be made into a wedge shape, which is conducive to the propagation and diffusion of sound waves.
⑤ The concealed installation is beneficial to the decoration effect of the entire hall, but if it is not handled properly, some direct sound energy will be lost, and the installation is more troublesome, and adjustment and maintenance are also very inconvenient.
3. Two points to be noticed when lifting speakers
First, the hoisting position and tilt angle directly affect the sound field distribution of the entire hall, the hoisting angle and the bunching area of ​​the main sound beam of the speaker;
Second, the firmness of the hoisting is directly related to the safety in the hall.
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