Search the Community

TLDR, Mic’s coil picking up EMI. Is there a solution? Hi, I'm new to the forum. A few days ago I bought a RODE Podmic, a dynamic mic, to replace AT2020, hoping to reduce the audio leak from my K702 open back headphones entering the mic that cause an echo problem to my friends over Voip. It did work, but introduced a new problem. I think the coil in the mic is picking up EMI from my PC. The following are two examples. EMI IDLE.mp4 The first video is when the system is idle. Normally I couldn’t hear the noise, but once I move the mic closer to the PC case, or point the mic towards the case, the noise became audible. EMI GPU.mp4 The second one is when GPU is on load, in this case a game. The noise is audible when the mic is away from the case, and gets even worse when being close to it. You can hear the pitch shift with the game’s framerate (though I didn’t show it cuz bf2042 no longer allows RTSS overlay after changing its anticheat engine), and when ever I switch the scene, the pitch shift as well. I’m surprised nobody seems to encounter this issue since all the info I can find that related to this topic are four post from different forum and only one of them seems to have the same cause as mine which is this one: https://linustechtips.com/topic/1511291-trying-to-deal-with-gpu-coil-whine-in-microphone-audio/ Spec list if that helps: CPU: 5950x MOBO: ROG Strix B550-E GPU: Inno3D iCHILL X4 3080Ti PSU: Cooler Master V1200 Platinum 1200W Case: Fractal Design Define 7 XL Black TG Audio Interface: MOTU M4 (Podmic connected to mic in 1) XLR cable: Third Party MOGAMI 2534 with Neutrik connectors I tried using an in line mic preamp, and switching XLR cables, didn’t affect the noise at all. So the noise must be introduced on the mic, not the cable or the audio interface. It’s not audible to human ears (except GPU’s physical coil whine), so it must be EMI. It’s not affecting my AT2020 which is a condenser mic, so it must have something to do with how dynamic mics work.

Just like the title says do UPS these days comes with EMI protection ? Please reply

Good afternoon, I recently upgraded to a MSI Ventus 2x 3070. Since upgrading, I have noticed that the two wall lamps I have flicker when my computer system is under load. They are both running 4W Dimmable LEDs (GE Vintage Style LED Light Bulbs), and are both run through a Lutron Credenza LED+ dimmer switch. My initial troubleshooting attempts involved swapping out the bulbs, but that did not make a difference. I then suspected it was a circuit issue, so I ran an extension cord and hooked the two lamps up to a different circuit in the house. This seemed to fix the issue for the most part. However, today while rendering a video and playing a game at the same time, the lights started flickering again. Could this be some kind of EMI or grounding issue? My PSU is a 600w, which I think should be sufficient for the load coming from my 3070. Any thoughts? Let me know if this is not the proper forum for these questions. The issue only started happening when I upgraded my GPU. I did have the occasional flicker with my previous GPU, but they were few and far between.

whenever i move my mouse, my audio crackles with a static sound. i've read that this may be due to either electrostatic discharge (though my motherboard does have shielding against this, Z170 Pro Gaming). i've also heard of over tight motherborad screws being a possible cause. can anybody shine some light on this? many thanks..

THE SOLUTION: BALANCED TRS CABLES I ain't no clickbaiter, and this solved my problem. Not quite sure why, but I guess the EMI was happening directly in the cables connecting the speakers to the interface...? The moral of the story is to try the simple solution first, I suppose. This is the set I purchased which solved my issue: https://www.amazon.com/Audio-2000s-E26106P2-Right-Angle/dp/B00JORUEDI/ref=sr_1_3?ie=UTF8&qid=1510349873&sr=8-3&keywords=balanced+trs+right+angle Here's my original post: Ok so this ones a doozy: I have some wack EMI (Electromagnetic Interference) in my audio system, which I believe originates from my GPU and bad mobo wiring. Basically what happens is if I try to use any external soundcard (Scarlett 2i4, Steinberg UR12, Behringer Q802) through any USB port, front or rear, I get interference in my speakers for any motion on screen. Mouse movement, scrolling through windows, and watching a video on YouTube all trigger a small high pitched whine. There's also constant buzzing in the speakers which I thought was a ground loop, but after using a ground lifted power strip and balanced cables, its still there. I have scoured the internet for days on end looking for a solution to this, but alas I couldn't find anything other than "buy a new motherboard" so I attempted to work around the problem. The hissy-whiny noise is not proportional to the output volume of either my computer or my soundcard, so I set them as loud as I could and turned my speakers down as far as sounded reasonable. I installed EqualizerAPO to boost my Windows sound output, and it works fine for everything *except* Ableton, which is of course where I need it to work the most. (This is because Ableton interfaces directly with the soundcard to reduce latency, and EqualizerAPO needs to run on top of the Windows MME driver, so it can't boost this output.) In Ableton Live, I level my tracks on average around -15dB to allow headroom for louder sounds. The problem with this, is that as far as I can tell, Live has no audio output volume control. There's the master volume, but it can only boost by 6dB, and that causes peaking within Ableton. What I'd like to do is to boost the output of Ableton live in software before it hits my soundcard, so I can keep my speakers low and avoid hearing the horrid EMI noise. Either that or find a magical solution to my EMI problem which doesn't require buying a new motherboard. If you have any ideas at all, please share them. If you need any more info on my system, just let me know. Thanks guys. *EDIT* I don't know why this was happening before, but Ableton was just being quieter than usual, and since this is the first time I'm using it with this speaker setup I didn't notice. The sound output issue is now pretty much solved, I'm only interested in fixing the EMI issues at this point.

New pcie risers PC starts However I've been getting more issues. Started with the m.2 I have audio feedback Random restarts Playing ancestors my fps dropped down to 20 after a while of playing Went to use my mouse and found that it looks like 2 of my USB ports are dead. Wondering if my Mobo is dying? Wondering if the subwoofers are causing EMI hopefully not permanent damage Original post: Linus and many others inspired me to do a desk build. I take PC apart and put into desk and it doesn't work when it did before. only real hardware changes have been PCIE extensions and PSU extensions. not sure if related but my M.2 died during the process of troubleshooting this, but it was 3years old almost daily use.

I have recently moved my desktop PC to where I live during university term time, and I was checking everything is alright after re-assembling it ( since it shipped ot piece by piece) and noticed that when I plugged in my earphones into the front panel audio jack I hear electrical background noise. Plugging the earphone into the back audio jack made the sound dissappear. I took a lool at the audio cable and it seems tp be alright. I am attaching a photo of my front panel PCB, the audio cable is in the middle. I did some research online and some people have this problem because the USB front panel cable causes interference. I plugged out the front panel USB cable out of the motherboard and reareanged the audio cable so it is as far way from other cables as possible and the noise was still there. Also, the noise only appears after the Windows logo dissappears at startup. The noise can not be heard during POST or while in BIOS. So it seems it might be a driver problem as well? The sound is most noticeable with mt earphons. If i plug in my Logitech G430 headphons the sound is barely audible. The thing is, I can hear a very similar sound out of my speakers if press my ear against them. Could this be just because of the electrical power grid being different? The PC and speakers are plugged in a Europlug socket extension lead which is plugged into a Europlug to Type G UK plug adaptor. I do not remember having this problem before, as I usually plug my headphones into a USB port with the surround sound adaptor they have. I am using Windows 7 Ultimate Edition and my motherboard is an Asrock Z77 Extreme4.

HI guys, I finally bit the bullet and got me some Audio technica phones (after watching one of your reviews) I have upgraded from Logitech G35 usb ones. So far so good, apart from one little concern. I am getting some kinda interference from somewhere. Only when the volume is up a little I can hear it only in the left side. I have moved my sound card (Xonar DG) further from the GPU (R9-290x) and its still there. I have tried the phones on the laptop all good. I have enabled the onboard codec and tried them and all good. It seems when I move the mouse it gets worse! even plugging the phones into the back without the extension it still carries the noise... Its obviously the sound card. Is there anything else I can do to fix this?

Hallo guys, I have been busy the last weeks to find the reason for a buzzing noise, that is coming from my speakers. The sound card I am using is a Soundblaster Titanium HD, a card that I very much like. But if I connect my analogue line-out to my Marantz amplifier and start a demanding game (eg. RotTR, DXMD), it gives of really annoying buzzing sounds, that I do not encounter when I am using headphones. The intensity is not volume dependent, so if I turn up the volume quite much, the noise is overshadowed . The frequency is changing, depending on the graphics settings, like Vsync etc. The PC and the amp are using different wall sockets. The thing I suspected is, that the EMI from my GPU is causing this mess, but: : why it doesent affect Headphones, wheather front or back IO : using FurMark, the noise is much more subtle, not that "angry bee in your ear" sound What could it be? Is my sound card broken? Or something completely different? Cheers and thank you! P.S.: I added a sound file of the sound. The silent part marks the loading screen. Buzzing.mp3

Afternoon guys, Got an issue which is really starting to grind my gears. I've a machine with a i5, 6gb ddr3, and just recently a zotac gtx 1050. I have the onboard realtek 5.1 config going out to my arcam DAC, and I get loads of interference from the GPU under load. Whining and buzzing when I switch between sheeting like v sync, AA and Anis-filtering. I also get interference whenever any graphical change occurs when on the desktop, mouse movements, scrolling or whatever. Normal stuff. I've recently added a xonar dgx sound card, and I'm still getting the same interference as before, under the same 5.1 config, and it's placed 3 PCI slots away from the 1050 I've tried the spdif on the card, and I'm getting very little interference, namely internal DAC interference, but it only outputs 2 channel over spdif annoyingly. Any ideas to mitigate the interference? I heard ferrite cores could help. Thanks all!

People have told me that ferrite cores cure that fuzzy sound problem associated with EMI. My question is does anyone have any experience with these cores and whether or not the do actually work. Can you have too many on one cable and when on do they impact sound performance? Thanks!

I am experiencing an electrical fuzzy noise with my PC speakers and headphones. The speakers and headphones are not at fault as they work fine with other devices. I have researched the problem and many people think that this kind of noise is due to emi and/or poor grounding. Is there anyway to rectify this problem without buying a sound card or USB dac? PC Specs. Processor-i5-4460 Motherboard-Gigabyte GA-B85-HD3 Ram-16GB 1600Mhz DDR3 Hard Drive-WD Blue 1TB Graphics Card-GTX 760 2GB Case-In Win Mana 136 More info:http://www.amazon.co...831CSY74PHVNZ5T FYI: I got it at a discount I posted it onto the forum and people said it could be due to interference coming from my GTX 760 as it is worse when I open new tabs, watch videos and play games and basically anything that involves stuff being shown onscreen.Do you guy have any suggestions. Ferrite cores, locating my GPU in a lower PCI-E connecter away from my audio outputs, Help will be really appreciated. Cheap and cheerful preferred so please don't ask me to buy a £1000 Dac with fancy shielded cables. Thanks

Crackling/buzzing/static noise when GPU under load. Parts list: * Motherboard: Asrock Z87 Extreme 9/ac * CPU: Intel core i7 4770K * GPU: 2x Gigabyte Radeon R9 280x OC Windforce in Crossfire * PSU: Corsair RM850 gold * Case: Fractal Design Define R5 So, here's my story: Yesterday, I swapped all my parts over from my old Fractal Design Define R4 to my new R5. My friend and I took our time, wore gloves that I was told were anti-static by the man in the shop, and did everything correctly as far as I can tell. The PC booted up nicely and all seemed fine. The issue came when I put on my headphones and started using the PC. I noticed a very faint crackling noise behind a video I was playing. I later tried to boot up GTA V. Here the crackling/ stat was intense, and could be heard even with loud audio playing from the game. I closed the game and fired up MSI afterburner. This time the noise was a high-pitched static/EMI kind of noise. This noise was also audible when taking the headset of and placing my ear inside the case, it seamed to come from the components. I also got the same noise when firing up Far Cry 4, and various noises in other games. Here's a rundown of what I know * The noises seam to appear when the GPU is under load, and is stronger when under heavier load. * Activating Crossfire seems to intensify the noise (because of higher power drain or processing power being used?) * Turning all sounds off in windows has no effect on the noise. There is still the same amount of noise through the headset * I have tried several headsets, so the issue is not there. * By looking at the graphs provided by MSI Afterburner I found the noise to be worse the higher the GPU clock speeds were. * The noises seem to be pretty much identical to what I can hear when sticking my ear next to the PSU exhaust. Is the PSU to blame or is there a bigger conspiration going on? thank you. I am grateful from any help or advice of any sort

First, to start off, my audio chain: I have a pair of PreSonus Eris 5 studio monitors connected via a pair of unbalanced TRS cables to an SM Pro Audio Nano Patch Plus (for convenient volume control/mute functionality) connected to a Schiit Audio Modi 2 DAC via a pair of unbalanced RCA to TRS adapters and a pair of unbalanced TRS cables (to provide signal to the whole shebang) which is then connected to my PC via a USB cable (duh). The whole, four-part chain goes: PC -> Modi 2 -> Nano Patch Plus -> 2x Eris 5s. The problem is, whenever I play a game, I get mildly audible EMI noise through my speakers that varies in pitch and tone depending on the current framerate that whatever game I am playing is running at. When the framerate goes up, it gets higher in pitch and changes tone. When it goes down, it gets lower in pitch and changes tone. (This can make for some really wacky sounds whilst playing a game in which FPS varies wildly) The speakers are dead silent at all other times. I already know this: it is not coil whine. It is not 60 cycle hum. It is not a ground loop. It is not an issue with any part of my audio chain besides the PC to DAC link. I'm assuming the root cause are my two SLI'd 780s based on the fluctuation of tone and pitch with the framerate. I did some research and came up with two possible solutions: 1. A glorified USB hub by Schiit called the "Wyrd." (It's supposedly helps with this sort of problem by supplying clean, well-regulated power to the DAC.) 2. A USB filter by iFi Audio called the "iPurifier." (It's an inline filter that supposedly sifts out EMI and electrical noise from the USB connection.) 3. A combination of both. (I have a feeling this will solve it.) Do you guys think any of these options will work? Do you know of any other way I could eliminate (or at least significantly lessen) the EMI noise? Your help is greatly appreciated as I have been fighting this issue for weeks now and am out of options besides spending even more money on my audio setup.

I recently built my first PC, and begun my foray into the world of the glorious PC master race. However, since I bought it, everyone I called over Hangouts or Teamspeak or whatever complained about a constant whining whenever I booted up a game. After some research, I found that the source was EMI from my graphics card. So, basically, what can I do to fix this? I need to still be able to talk to people through my PC, so I need both input and output through whatever I end up buying. Whatever I get needs great EMI shielding, or an easy DIY way to make it. Also I want to spend as little money as I can. TL;DR - I need a way to get rid of my EMI, and still be able to talk (with my actual voice) to people online dirt cheap.

So I've built a new system, and I'm loving it. I have a problem though. I'm using the ASUS Xonar Essence STX (have used this card in previous computer aswell, for about 1 year now), In the previous computer, I never had any problems with it, and it's working fine now aswell, but the EMI in the new computer is driving me insane. I've narrowed it down to 2 possible sources (I could be wrong, but extensive testing shows those as the most likely sources). Most likely is the PSU (EVGA SuperNOVA 1000 G2) Second in place is the Graphics card, (EVGA GeForce GTX 780 Ti SC ACX) I have tried moving the cards around, putting other cards inbetween, and switching which is above and below the other - no difference at all. This is the reason I'm putting the PSU as suspect #1. I have the Corsair Carbide Air 540 case, and the PSU is right up against the mobo back. Sadly I don't have any alternative PSU's to test with, so I have come here for your input before I go off spending money on alternative solutions. While idling on desktop or browsing websites, there's nothing unless I turn the volume up 400%, and even then I can barely hear it (it's easier to hear on the microphone, even if it's not connected to anything. Listening through the recording devices in Win7). As soon as I open a program that requires some computing power (most noticably so far is Far Cry 3, the loading screen when you just open the game is brutal!), the noise ramps up alot, taking alot of different frequencies and noises, but always the same in same scenario and programs. Even while hovering over Teamspeak3 client it goes crazy, even without clicking anything. I hope to hear from someone who defeated something like this, or anyone who would have even the slightest idea to try and fix this issue. Thank you for taking your time to read through my problem, I truely appreciate it.