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Laptop Power Supply Problem Noise!!
https://www.sweetwater.com/forums/showthread.php?45762-Laptop-Power-Supply-Problem-Noise!!#:~:text=The%20cause%20of%20the%20noise%20is%20NOT%20due,get%20a%20device%20known%20as%20a%20hum%20destroyer.
how to fix noisy laptop power supply? | diyAudio
https://www.diyaudio.com/community/threads/how-to-fix-noisy-laptop-power-supply.327064/
I'm currently driving my two speakers with seperate TPA3118 PBTL amplifier boards, sharing the same 19V laptop power supply. The problem is, there is a constant background noise similiar to cicada noise. I analysed the noise spectrum and saw two appearent noise bands around 5khz with...
Noisy laptop power supply | Sound Forums
https://soundforums.net/community/threads/noisy-laptop-power-supply.3504/
Laptop power supplies and other DC power supplies that are in a plastic shell but have a 3-wire cable have that cable for a reason. Usually because either the plastic enclosure does not have sufficient insulating or flame-resistant properties and there's a metal enclosure inside the plastic enclosure that needs to be grounded, or because the earth ground is needed …
Power supply noise in audio - Electrical Engineering Stack ...
https://electronics.stackexchange.com/questions/36701/power-supply-noise-in-audio
Make an adapter from that 3rd prong to "something". That something could be the signal-ground on the output cable of your power supply. It could be a screw on the laptop. Or a shield on an unused laptop connector. Or the ground/shield on your audio cable. Make that 3rd prong adapter, but leave the other end bare for the moment.
Laptop making noise when power cord plugged in - HP ...
https://h30434.www3.hp.com/t5/Notebook-Audio/Laptop-making-noise-when-power-cord-plugged-in/td-p/5963417
Then please try with a different power cord and adapter if possible by stepping into Best Buy or staples to isolate the issue to the power cord and not the computer. If the noise does not occur with another adapter, then the charger in question needs to be replaced. If it continues to happen even with a different adapter, then the notebook needs to be serviced. To get this …
Solving Laptop Noise and Ground Loop Audio …
https://www.youtube.com/watch?v=jSA2F1AwboU
We often hear reports of weird noises coming from the audio interfaces when attached to a laptop. Sounds a lot like electrical interference, mixed with scrat...
Solved: My AC adapter is making a little noise.. - Dell ...
https://www.dell.com/community/Laptops-General-Read-Only/My-AC-adapter-is-making-a-little-noise/td-p/3740272
If you can only hear it when you hold you're ear directly up against the ac adapter when it is plugged in, that is completely normal. This noise is generated by the electricity passing through the ac adapter, vibrating it's components. Once again, it is not abnormal to hear a slight buzzing sound from your ac adapter.
3 Ways to Reduce Power-Supply Noise | Electronic Design
https://www.electronicdesign.com/power-management/power-supply/article/21808839/3-ways-to-reduce-powersupply-noise
Filtering, bypass, and post-regulation are the three primary ways to reduce power-supply noise, but there are some less-used techniques. One is to use a battery to power your circuitry. Batteries...
Laptop Power Supply Problem Noise!!
https://www.sweetwater.com/forums/showthread.php?45762-Laptop-Power-Supply-Problem-Noise!!
The cause of the noise is NOT due to faulty equipment/laptops/PSUs/data cables crossing power cables or anything like that, it is actually due to the inconsistent AC current that the majority of AC wall sockets provide.(especially in Queensland, Australia) To counter attack this, you need to get a device known as a hum destroyer. Behringer make one but im sure other …
Static noise when connected to speakers with AC adapter ...
https://forums.tomsguide.com/threads/static-noise-when-connected-to-speakers-with-ac-adapter-plugged-in.385171/
To check this, you can connect your laptop to the AC power supply from a different outlet, preferably from a different premises such as your office or a friend's home. If there is a grounding issue, your laptop won't make the static noise when connected to a power outlet at a different premises.
electrical noise in audio output. Power Supply? : Pro ...
https://recording.org/forum/pro-audio-repair-modifications/electrical-noise-audio-output-power-supply
No, line conditioners filter noise on the AC line, before it gets to your computer. The problem you have is computer generated noise reflected back into the analog section of the Ardvark Q10. A good power supply can help keep this noise from being produced in the first place(less AC ripple in the DC voltage), other things like motherboard design, hard drive design …
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