1. Electromagnetic radiation caused by noise
Electromagnetic radiation caused by noise environment scattered electromagnetic radiation interference, such as mobile phones, walkie-talkies and other communications equipment, high-frequency electromagnetic radiation interference and so on.In order to make guests feel comfortable singing, the solution to this kind of noise is to require our staff to gently remind guests not to put their communication devices near our sound equipment when providing service to guests.
2. Noise generated by grounding loop
In the sound system, the whole system must be required to have good grounding, grounding resistance requirements less than 4 ohms.Otherwise, the induced charge generated by various radiation and electromagnetic induction of the equipment in the lighting and sound rental system will not be able to flow into the ground, thus forming noise voltage superimposed in the audio signal.
3. The noise generated by power interference
It's generally that we aren't up to standard in the whole sound engineering design when there is a problem with our sound equipment.If we want to avoid this phenomenon.We try to separate the power lines in our rooms when designing the lighting and sound leasing project .
4. The noise generated inside the sound equipment
If KTV to buy sound equipment quality is not good, this aspect of the cause is also some.Therefore, when we choose and buy lighting and audio rental equipment, we need to pay attention to the sound equipment has an index - signal-to-noise ratio.You need to pay attention to this information when you buy.