![]() The audio signal out from the 1st system at 80% level would be 400mVĪnd the if Line-In capture level set to 15% the audio signal in the 2nd system would be 60mVĪssuming the 2nd system has a constant background noise level of 6mV, Using a line level audio signal of 500mV (rounded up for easier calculation) This can be considered as a problem with voltage levels Voltages not playing nice between both machines ![]() That would suggest that the noise is from another source, the audio cable or 2nd system Have you tried putting a microphone into the microphone input, to check that it works as it should with the expected input attached?Īdjusting the volume on the Windows machine does not affect the noise.Are you using an RCA/3.5 mm or XLR (with XLR throughout, output and input) cable? How long is the cable? I have found RCA cables often pick up interference and, when having to use them, have found using high quality double shielded coax cable much better. ![]() Could potentially be solved by upgrading power supply or audio device, or possibly a mains voltage regulator. Earth leakage or poor shielding from one (or both) computer(s) may be causing an issue. Interference and ground loops are problematic, and computers often give many issues with audio.What audio device are you using for the mic input? Can you select expected input voltage level? Dedicated mic input is not usually designed for line input the line output will need to be reduced to avoid distortion, which will affect your signal to noise ratio.There are a few things I would check and things that come to mind: The noise was still there.ĭoes anyone have any idea as to what could be the issue? Is there a fix for this very specific problem? I even went as far as testing another Windows machine. I also changed the audio interface on both machines (using a cheap USB adapter), and the issue was also present. I changed the cable multiple times to see if this was the issue, and nothing either. I checked on the Windows machine’s audio output if I could hear the noise when plugging headphones directly in, but I could not hear it. I also checked if it was a sample rate issue (as hinted at from this Arch wiki entry), but nothing either. I tried loading the module-echo-cancel module from the solution found on this forum, but to no avail. If there are no sound coming from the Windows machine, the noise is not present. This noise can be heard on any output device on the Linux machine (speakers, wired or wireless headphones). ![]() There is a constant static noise that is only present when there is sound coming from the Windows machine. Here is a short recording of the noise that I keep hearing: Pulseaudio has the loopback module loaded and the microphone input has its volume lowered so it is comfortable to listen to. The Windows machine has its speaker output connected to the microphone input on the Linux machine. The issue with this setup is there is a constant noise that is coming from the Pulseaudio loopback. This saves me from having 2 microphones and having to manage 2 different Discord sessions. The setup might seem a bit odd, but I have the Windows’ audio output connected to the Linux’s mic input so that all the sound passes through Manjaro. To remedy this, I have a separate Windows machine for these games. I play a lot of video games and I’ve been trying to use Linux all the time for a few years now, but some games are still not supported on Linux. This is an odd and very specific issue, and I understand there might not be any simple solutions, but here is some context.
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