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Power supply noise in audio - Electrical Engineering Stack ...
https://electronics.stackexchange.com/questions/36701/power-supply-noise-in-audio
the radio receiver feeds an audio signal into line-in of the notebook; the radio receiver is controlled by the notebook via RS232 (tuning, etc.) Problem: If I unplug the notebook from its power supply and run it from battery everything works perfectly; But if I use the notebook SMPS, I hear a tremendous amount of noise in the audio
Audio Myth - "Switching Power Supplies are Noisy ...
https://benchmarkmedia.com/blogs/application_notes/152143111-audio-myth-switching-power-supplies-are-noisy
The power supplies in high power devices, such as audio power amplifiers, can emit very strong magnetic fields. These strong fields tend to limit the noise performance (SNR) of power amplifiers. These magnetic fields can also cause interference with audio products that happen to be too near the amplifier.
Dealing with POWER SUPPLY NOISE – PedalSnake Blog
https://www.pedalsnake.com/blog/2016/09/dealing-power-supplies/
When noise is actually caused by the power supply itself, it will usually be one of the following: A noisy power supply model. You must check to see if your power supply is designed to be quiet for audio, and comes from a reputable pedal (or supply) maker. If you have a generic power supply made for electronic gear, then that could be the problem.
Power supply causing audio crackling/whining - Power ...
https://linustechtips.com/topic/283-power-supply-causing-audio-cracklingwhining/
4. Posted January 4, 2013. It sounds unlikely that it's a power supply issue to me, moving it closer shouldn't affect interference with the sound card. There's a lot of other things that could be causing the issue, such as faulty PCI-e slots of the motherboard, improper wiring, etc.
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
A good, but expensive, way to reduce power-supply noise is to put a second low-noise regulator on the power-supply output. This often involves a low-dropout (LDO) linear regulator. It will reduce ...
Minimizing Noise by Switched-Mode Power Supplies | …
https://www.digikey.com/en/articles/minimizing-noise-generated-by-switched-mode-power-supplies
SMPS noise. According to Dostal, the dominant noise type is the switching noise generated by the switching frequency of the supply. Typically, he says, the frequency band for this noise is between 500 kHz and 3 MHz for non-isolated DC/DC converters. However, because it is dependent on the switching frequency, it can be easily controlled and ...
How to get rid of hum and other noises from your audio ...
https://www.techhive.com/article/582313/how-to-get-rid-of-hum-and-eliminate-other-noises-from-your-audio-and-video-systems.html
The number-one cause of unusual audio noise and weird video is the ground loop, simply because it’s so darned easy to create. ... (uninterruptible power supply) or …
Power Supply Noise Reduction - Designer’s Guide
https://designers-guide.org/design/bypassing.pdf
power supply. Real power supplies can cause noise and spurious oscillations that can force the designer into a frustrating glitch hunt. Rules of thumb can usually be applied successfully to simple problems, but a little understanding and forethought will usually provide clean solutions to even the more obscure problems. With this paper, I hope to
Noisy laptop power supply | Sound Forums
https://soundforums.net/community/threads/noisy-laptop-power-supply.3504/
Re: Noisy laptop power supply In my experience, sometimes using a passive DI (with ground lift) between the laptop and console can help, but other times it's noise induced in the audio path inside the laptop and there's no way to remove it.
New power supply causing noise problems ? - …
https://gearspace.com/board/music-computers/1112589-new-power-supply-causing-noise-problems.html
However, could be the new power supply (or new power supply cable) too. I saw an article on (I think) the Realtek audio site about noisy power supplies causing static in sound. What new power supply did you get? If it was one of the low price or no name power supplies I would suspect that is the problem.
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