Live data from Hacker News

Why are my headphones buzzing whenever I run my game?

alexene.dev

81–90 of 153 posts

Re: Why are my headphones buzzing whenever I run my game?

#81
post #53

I have this weird thing whenever I have headphones and open the Dota2 settings on my Mac, then I not only get buzzing but the overall sound quality plummets!

Bluetooth headphones? the settings menu could be using the microphone somehow and switching to mono audio because bluetooth is low bandwidth

Oh yeah, Bluetooth headphones, I think this might actually explain it.

Re: Why are my headphones buzzing whenever I run my game?

#83

I remember 15+ years ago reading about certain laptops (Dell?) that you could 'hear' scrolling on websites, somehow the video chip was interfering with the sound chips. I had one at the time it was pretty weird.

Quite a flashback. I switched to optical TOSLINK maybe about 20 years ago, which solved all those issues obviously. It's a bit weird how rare optical outs are on motherboards even today -- clearly less than half have them -- when it is such a useful interface. Just ordered a hat for my Raspberry Pi with optical out, with a plan to make that my main music streamer. Excited to see if that works out!

Ditto. It’s is hard to find non-wifi motherboards with toslink.

All the cheap boards have neither. Most of the high end boards have both

Re: Why are my headphones buzzing whenever I run my game?

#84
I am a bit confused. Based on the earlier paragraphs, it hinted that the solution would be related to the frequency of the job, not necessarily its load (since other games do not have this issue), but then the fix was not changing the frequency but the load of the job.

What am I missing?

Re: Why are my headphones buzzing whenever I run my game?

#85
post #75

Earlier quoted context omitted.

If you had that conversation before and you still having noise, maybe you are not doing the right thing... Sigh...

I got rid of the noise via the method I described in the original comment? Moving my audio equipment to separate power strip on a separate outlet. It didn't totally remove it, but made it quiet enough to deal with.

Don't mind them. I've had a similar thing happen, but with power line Ethernet. In your case however, I'd be at least a little concerned about the building wiring.

Re: Why are my headphones buzzing whenever I run my game?

#86

Earlier quoted context omitted.

Pure sine wave UPSs are not that expensive anymore man. I think the biggest "desktop" pure sine wave cyberpower sells (1500VA/1000W, CP1500PFCLCD) is <$300 now. I have a couple of them, they are great.

It's not about pure sine wave - it's double conversion. Only double-conversion would actually isolate the equipment from EMI on the line. Without that pure sine wave won't do squat for EMI. And one of those, even the cheapest ones, run for about ~$900. And they are LOUD.

I wonder if modern motor and power control tech could be adapted to make a desk-side motor-generator set that is efficient enough to rival an always-active, dual conversion AC-DC-AC UPS.

How efficient could a small AC->motor->generator->AC chain be with a modest flywheel mass to provide cycle-to-cycle stability?

Could it ever make sense to put one of these after a standby UPS so the output is always filtered by the motor-generator but the UPS only has to kick in for outages?

Re: Why are my headphones buzzing whenever I run my game?

#87

I run into a similar problem. I have a power-hungry GPU (3080) and CPU (9800X3D). All my audio equipment was on the same UPS (and therefore outlet) as my gaming PC. The result is that any time a particularly stressful game would be open, I'd get buzzing in the speakers. (Especially if the framerate was at 360) If you ask audiophiles online they will swear up and down that a cheater plug, balanced cables, or optical i…

You could also chuck a bunch of ferrites on your PC power cord

Re: Why are my headphones buzzing whenever I run my game?

#88
Reading through your post, it's likely the noise sourced from the network cable is coupling into your headset cable. Check how close those cables are to each other If you're using a USB port at the back for your DAC, try switching it to the front. The noise can also come from the power supply which couples into the motherboard's ground plane and shows up on all USB ports.

Re: Why are my headphones buzzing whenever I run my game?

#89
I hit a similar issue on my MacBook Pro. Whenever I watched YouTube or streamed Spotify while playing a game, the audio broke into little "clipping chirps" and static.

For me the culprit was Game Mode. I still don't really know what it does, but disabling it fixed everything. None of my games come close to stressing the CPU, yet Game Mode was throttling anything that wasn't the game. It was also on by default, which felt like a design miss.

For MacOS, a better approach would be to check what's happening on the second monitor or at least avoid throttling apps that aren't being displayed. Assuming the game deserves all system resources and that the user doesn't want to watch or listen to anything else is a bad bet.

Anyway, the good news is the fix on a Mac is simple once you know where to look. (=

Re: Why are my headphones buzzing whenever I run my game?

#90
Great write-up. This is basically spam but I want to specifically thank the author for pointing out their solution, because it's directly applicable to one of my own projects and I'm going to do it tonight!

> There’s no need to download the whole texture each frame, just the part of the picking texture that’s under the mouse. So I implemented that and it worked and buzzing is gone. As a bonus, now it’s also not visible at all on the GPU trace.

Post reply on HN