KTV sound construction and commissioning technology

First, KTV sound construction considerations

Before the project is carried out, it needs to be coordinated with hydropower, wiring, decoration and lighting.

A. Hydropower project: If there is lighting design in the KTV room, a separate set of power supply is required for the audio. If it is shared with the light, it is easy to generate “power interference”;

B. Wiring engineering: If the wiring is long, it is necessary to consider anti-interference wiring, or piping, and put the signal line under “no interference”. The interference sources are: emission interference, electrical room interference, radiation interference, Power interference, etc.;

C., decoration project: hanging speaker, installed peripheral hand control accessories, MIC connector, MIC hanger, etc. need to be in-depth coordination with the decoration project in advance, pay attention to the structure, durability, stable equipment also need durable structure to cooperate, complement each other. The installation of the power amplifier needs to be placed in the “energy-discharging environment”. The long-term and continuous operation of the power amplifier will generate high temperature. If there is no “moderate space, heat convection environment”, the temperature will gradually rise, resulting in high temperature, and the power amplifier will be protected. Function, the action is not smooth, and the continuous high temperature causes the aging of the equipment to accelerate. Therefore, when receiving the case, it is necessary to care about the placement environment of the power amplifier.

D Lighting Project: Light is often a serious source of interference for audio. Please pay attention to the following:

Interference with the light source

Interference with MIC in an environment with poor lighting

With poor lighting, it also creates interference


Second, the characteristics of the program configuration:

Note 1: Designed by performance, surrounded by sound field design, consider convenient construction, easy operation, simple maintenance, auxiliary speakers with small sound processing in series, the effect is very good, you can also add cost accounting 6.5 channels (currently connected in series Less practice, dull sound, three-channel auxiliary speakers are used in parallel)

Note 2: The larger the space, the more guests are accommodated, the greater the sound pressure required on the scene. The larger the speaker's caliber and the power of the amplifier, the more basic concept is to match the size of the venue.

Note 3: The combination is high with the room; the number of sound absorption is flexible. (The above configuration should be analyzed according to the specific situation)

Third, the characteristics of the channel system:

The first sound effect can make the density of the sound better, the sound field is wider, and it can create a sense of presence and the atmosphere at the scene. The density of the sound field greatly increases the ease of singing.

Secondly, from the sound pressure level, the use of three auxiliary sounds enables the smaller size speakers to achieve the same sound volume and sound pressure level, which makes it easier for us to install the cabinet to better fit the decoration. in. At the same time, in terms of low-frequency performance, the low-frequency speed of many small-sized speakers is better than that of a single large-caliber speaker unit. The impact and stimulation of subjective listening are more intense, and the sound floor of the performance will be cleaner and clearer.

Thirdly, from the safety of the speaker operation, it is well known that the speaker of the karaoke speaker is very easy to damage. In addition to the MIC, the howling, etc., the reason is mainly because the karaoke speaker needs to work for a long time in the high power state. In this way, the aging speed of the speaker will be greatly increased, and three auxiliary speakers are used. The power of each speaker is lower than that of the two main speakers when the same sound pressure level is reached.

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