What should be paid attention to in the design of sound field processing of KTV sound engineering de

　　KTV Architectural Acoustics Design

　　The KTV architectural acoustics we are talking about here has a certain scope and limitation. Generally speaking, KTV architectural acoustics can be divided into two parts: one is "sound insulation" processing; the other is "sound field" processing. The "sound insulation" processing is aimed at how to deal with "noise"; and the "sound field" processing is aimed at how to make the sound system play a better effect.

　　sound field processing

　　I won't say too much about the sound field in KTV sound engineering. In short, if the sound is produced in a container, then the container will definitely affect the sound, it may become better or worse, even if it is " So-called "anechoic chambers" also alter the original sound. Our research on the KTV sound field is to study how to make the audio equipment in the KTV box emit better sound. The main factors that affect the sound field or sound effect of the box are as follows:

　　1. Wall treatment: The wall decoration materials of KTV boxes can be said to be various. We can roughly divide them into three types: soft packaging, hard packaging and neutral packaging. Of course, neither the current construction decoration team nor the owner of Party A has a special understanding of acoustics. Therefore, the current KTV box wall design is mainly based on luxury, dignity, fashion, and avant-garde, and the acoustic characteristics are second.

　　2. Ground ceiling treatment: In a sound field, in addition to the surrounding walls, the ground and ceiling have a very obvious impact on the sound field. We can also be divided into three types: soft packaging, hard packaging, and neutral packaging. The soft packaging floor is generally carpeted, and the ceiling is also made of soft materials with better sound absorption and more aesthetics; the hard packaging floor is generally laid with floor tiles, etc. Some ceilings are made of hard materials or simply do not have a ceiling, such a sound field can be imagined. Know; the neutral packing floor may be laid with wooden floors or thinner carpets, and the ceiling is also made of neutral materials with better sound absorption and diffusion. Relatively speaking, Party A still pays more attention to the ground, followed by the surrounding walls, the ceiling has basically no decoration, let alone the acoustic design.

　　3. Sofa treatment: KTV sofas are basically matched according to the decorative style and acoustic characteristics of walls, such as nightclub-style box sofas, which are also cloth sofas with strong sound absorption; mass-selling KTVs mainly in hard packaging or neutral packaging Most of the sofas in the box also use leather sofas with moderate sound absorption. Don't underestimate the influence of sofas on the sound field, because the surrounding walls and ceilings cannot be changed at any time once the decoration is completed, that is to say, the sound field has been fixed, but we can improve the sound field by increasing or reducing the number of sofas. .

　　4. Door and window furniture treatment: If there are windows in the KTV box, when the KTV sound engineering sound system is working, it is better to draw the curtains. Curtains are also a good material for improving the sound field, especially those that are thicker and have wavy stripes. Curtains have the effect of both absorbing and diffusing sound; if you feel that the sound absorption in the room is enough, then the door does not need to be dealt with, otherwise you can pack some sound-absorbing materials for the door of the box; some boxes are placed TVs, computers, stereos The cabinets of the equipment are all made of wood, and the production of these cabinets must be strong, otherwise it will generate noise. Similarly, other furnishings such as coffee tables should also be sturdy and shockproof.

　　5. Acoustic material processing: We all know that most acoustic materials are very expensive and unsightly, so it is difficult to use them in KTV boxes, but some cheap and popular materials can still be used, such as sound-absorbing cotton, sound-absorbing paint, simple perforated board, etc.

　　6. Room shape: The space and shape of the room are of course very important to the sound field. Generally speaking, the owners of entertainment venues only determine the shape and quantity of the room according to the overall layout of the entertainment venue and the plans provided by the design company. Some Party A's bosses will consider acoustic issues. As we all know, the space shape and size of the room is preferably divided according to the "golden section" method, that is, L (length): W (width): H (height) = 1.618: 1: 0.618. Practice has proved that the rectangular room divided in this way The sound field is better; also by convention, the speaker should be placed on the narrow side of the rectangular room, and the wall where the speaker is located has better sound absorption than sound absorption, and the wall opposite to the speaker and farther away from the wall has better sound absorption than diffusion; One should pay attention that the decoration of the two parallel walls in the room should not be exactly the same, which will form parallel resonance; another is to try to have as many convex surfaces as possible in the room, which is conducive to sound diffusion, and less concave surfaces to avoid sound focusing. If it is due to the sound field defect caused by the shape of the box, although it can be processed and compensated by acoustic decoration in the future, there is still no way to fundamentally solve it. Therefore, regarding the shape of the room, if we have the opportunity, we should try to remind Party A as much as possible. Due to factors such as the function and cost of KTV boxes, complex acoustic design, transformation and decoration are rarely carried out. We will only briefly say that after we undertake the KTV sound project in the future, on the one hand, we can remind and guide Party A as much as possible. Pay attention to the acoustic design of KTV boxes. On the other hand, we can configure different audio equipment according to the sound field of different KTV boxes.

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