In daily life or when singing in the KTV private room, I believe everyone has encountered the problem of acoustic noise. The noise of "squeak" is very uncomfortable to listen to. So, we can't help but ask, why is there noise in the audio equipment? Here we introduce four reasons for the noise of the audio equipment during the audio failure.
1. Noise caused by electromagnetic radiation
Electromagnetic radiation causes stray electromagnetic radiation interference in the noisy environment, such as high-frequency electromagnetic wave radiation interference of communication equipment such as mobile phones and walkie-talkies. In order to let guests sing comfortably, the solution to this noise is to ask our employees to gently remind guests not to put their communication equipment close to our audio equipment when providing services to guests.
2. Noise generated by the ground loop
In the audio system, the entire system must be well grounded, and the grounding resistance must be less than 4 ohms. Otherwise, the induced charge of the equipment in the light and sound rental system due to various radiation and electromagnetic induction will not be able to flow into the ground, thereby forming a noise voltage superimposed on the audio signal.
3. Noise caused by power supply interference
When there is a problem with our audio equipment, it is generally that we do not meet the standard when designing the entire audio project. If you want to avoid this phenomenon. We try to design the power lines in our private rooms separately when designing the lighting and sound rental project.
4. Noise generated inside the audio equipment
If the quality of the audio equipment we purchased from KTV is not good, there are also reasons for this. Therefore, when we buy lighting and audio rental equipment, we need to pay attention to that audio equipment has an indicator-signal to noise ratio. Everyone needs to pay attention to this information when purchasing.
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