source:Industry News release time:2022-01-03 Hits: Popular:Brand bar audio wholesale
I believe that many of my friends have heard the noise of "Zrazra" from professional audio noise in KTV or daily life. Most people just tap the microphone when they encounter noise, but this is actually useless in dealing with the noise. Then, how does the noise of professional audio equipment occur? How can we stop the noise of professional audio equipment?
1. Try not to approach professional audio equipment with communication equipment
Why don't you get close to professional audio equipment with communication equipment on your body? Because devices such as mobile phones and walkie-talkies have a kind of high-frequency electromagnetic radiation interference, the scattered electromagnetic radiation interference of the noise environment caused by electromagnetic wave radiation will produce the "zira" sound of electric current, which often makes people feel uncomfortable. Therefore, the first way to prevent noise is to refuse to bring communication products close to professional audio equipment.
2. Separate the power lines when routing professional audio equipment
In general, if the new home theaters and audio-visual rooms have professional audio equipment noise, most of it is because the professional audio project planning did not plan to meet the standards. Because new professional audio equipment generally produces noise due to wiring problems caused by interference with the power supply, to avoid this problem, you must find a professional audio-visual decoration company to plan and decorate the audio-visual room or home theater, or separate professional The power line of audio equipment.
3. Test the signal-to-noise ratio when buying professional audio
The signal-to-noise ratio refers to the ratio of the normal sound signal played back by professional audio to the noise signal/power when there is no signal. The higher the signal-to-noise ratio, the lower the noise. For example, some users have tested and tested all aspects when they bought it, but perhaps because they did not pay attention to the signal-to-noise ratio test, it did not take long for the professional audio equipment to buy home to have noise problems.
4. Pay attention to the ground loop of professional audio equipment
Because professional audio equipment will generate various radiation and electromagnetic induction charges, if it cannot flow out, it will form a noise voltage in the professional audio equipment and superimpose it in the audio equipment signal. Therefore, professional audio equipment must have a good and unobstructed ground connection, and the ground resistance cannot be greater than 4 ohms. Otherwise, the previous duplication will occur.
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