Monitor High Pitch Noise When Reading Text File
The loftier pitched racket from many LCD monitors when their brightness is reduced can be utterly distracting. Hither's a simple workaround that tin work quite well with most monitors for many users. Also, please participate in our Quiet / Noisy Monitor Survey!
Many computer users take run across the event of whining LCD monitors. Unremarkably, it does not occur when the monitor is set to full brightness, which is usually too bright for most users. The natural response is to turn the brightness down using the monitor's controls. That'southward when the monitor can start to emit some loftier frequency tones, which are described most often as buzzing or whining. The noise usually gets worse the more the screen is dimmed.
Information technology can be piercing and annoying enough to overcome fifty-fifty relatively loftier ambient dissonance. If y'all've spent the time and effort to study the information on SPCR and managed to reach super-tranquility performance in your computer, this whine tin can be admittedly frustrating. In short, it can drive people crazy.
The source of the trouble appears to exist components in the electronic circuit which controls the brightness of the CFL bulb that lights most LCD monitors. Nigh likely, this is some course of PWM (pulse width modulation) circuit, a very useful tool that, alas, can have negative side furnishings. For example, while it allows a fan to start reliably at unusually depression speed, an improperly matched PWM control circuit tin crusade a DC fan to emit more clicking, buzzing and chattering noise every bit it is slowed. A similar effect may be happening with the monitor CFL bulbs. To modify this electronic circuit in lodge to reduce or eliminate the whining dissonance is an incommunicable challenge for most users.
Thankfully, there is a simple workaround inside the software controls bundled with most video menu drivers. The color adjustment screen in the display characteristics control panel also provides a brightness setting. Using this control reduces the brightness in the video carte du jour output. This bypasses the monitor's electronic control excursion, which can exist left at maximum brightness, thus eliminating the noise. It'south an approach that works even with years-old video cards such as a GeFore iv MX onboard video.
The brightness setting in the color window of the Catalyst software for my ATI graphics bill of fare is set to -51, which makes the BenQ monitor perfectly bright for me while bypassing that monitor'south infernal whining brightness control.
This workaround will obviously not work for LCD monitors that whine fifty-fifty at full effulgence. A replacement with some other sample or model is recommended in such cases. We have not tried replacing the CFL bulb of afflicted LCD monitors; it probably is non the crusade, however. Interestingly, the whine of CRT monitors can usually exist reduced by setting its internal effulgence command down. It's likewise not clear whether any LED-lit monitors suffer the same problem.
CAUTION : If you lot are an epitome professional (or avant-garde amateur) who relies on color accurateness, this may not be a good solution. For details, please see the discussion in the forum linked beneath. If you discover the color degradation with this arroyo to be serious, you may also desire to try a combination of both monitor hardware brightness command and video driver software brightness reduction. With a decent monitor, for typical computer uage, you should be able to observe a happy compromise between image integrity and aural peace.
Participate in our Quiet / Noisy Monitor Survey
Delight help u.s.a. help you! The SPCR staff and lab can only examine and report on a finite number of products. Reader contributions can expand our reach tremendously. Everyone viewing this folio has a monitor. In the forum discussion linked above, please post the make and model of your monitor and whether it whines. If it does, describe the degree, nature and weather condition. As this log grows, everyone can benefit by using information technology every bit a quick reference. When it gets big enough, we will turn it to a tabular array with multiple models, samples and ratings, and keep it uptodate. Information technology will become a highly useful resource for repose monitor seekers.
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We continue to explore the issue of loftier frequency tonal noise from many computer components. Equally we approach always lower noise levels, this electronic whining often becomes disquisitional; in "normal" (read: noisy) computers, it is masked by the noise of fans and hard drives. Power supplies, motherboards and video cards are the other main sources of electronic whine. The whine is often associated with power components, usually capacitors and coils. Poor excursion design is probably at fault; electronic resonances in circuits can cause the components to vibrate or ring, and the whining nosotros hear is direct related to that ringing.
We promise that this is the first, non the final or only, commodity at SPCR to tackle the event of electronic whining in computer components. If you have any solutions to offer, delight share them with us, by electronic mail or in the discussion forums.
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Discuss this article in the SPCR forums.
Source: https://silentpcreview.com/how-to-stop-the-whining-noise-of-your-lcd-monitor/
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