The hum is present if I have just the audio cable plugged in to the receiver, but disconnected at the monitor end. leaving the laptop for a while), the hum is intermittent but regular: roughly 2 seconds of hum, half a second of silence, then a brief staccato hum, then another 10 seconds of silence - and repeat. Oddly, when the U3818W goes into power saving mode (e.g. However, if I turn the U3818W off, there is a constant loud hum on the audio which may be a ground loop (I'm not sure). In normal use it works fine, no noise, no hum, good audio. Jason Duke liked SnappCat - memed pics from your cat to your phone.I have a U3818W attached to two laptops, with the audio going from the U3818W 3.5 mm out to a Denon receiver.Jason Duke liked Live Calendar with Visual User Logger.Jason Duke liked Run Spotify on Raspberry Pi.Jason Duke liked Retrotube - All in 1 DIY Raspberry Pi Case.Jason Duke liked "That Old Piano" Radio.Jason Duke liked Plex Media Server on Raspberry Pi or anyother ARM.Jason Duke liked Solar Eclipse High Altitude Balloon.Jason Duke liked Audio VU Meters & Raspberry Pi.Paul McClay wrote a comment on Electromechanical Refreshable Braille Module.The Commenter Formerly Known As Ren on Continental Europe’s First Spaceport – And It’s Above The Arctic Circle!.Ergotron on Hackaday Prize 2023: Ending 10 Years On A High Note.Ostracus on Reliving The Authentic 90s Linux Experience.BobH on The Height Of 1960s Dental Electronic Technology.Matt on Hackaday Prize 2023: Ending 10 Years On A High Note. Clancy on Getting PCIe Working On The New Pi 5.Jack on Decorative Clock Uses LED Strips To Beautiful Effect.Ostracus on Fastest Semiconductor May Also Be Most Expensive.So why would you change it if it has more disadvantages than advantages?Ģ000-Year Old Charred Manuscripts Reveal Their Secrets 38 Comments Theres also nothing wrong with 3.5mm analogue, and I can’t see any advantages to using USBC, especially since you usually want a separate audio output anyway. I also think USBC is probably weaker than a 3.5mm plug, and since cables tend to be pulled and yanked etc, then it maybe better staying with 3.5mm. You could use a USB hub but then the devices probably will show up as separate audio outputs on your device so you’ll need some extra software to output to all of them at the same time. I can’t see it being very easy to split a USBC audio signal, since USB is supposed to be between two devices and not split. Too many devices are still in use that use normal analogue headphones, most PCs still do, a lot of laptops do, etc, and it makes it very easy to connect in other devices like speakers or to split the signal. It’s definitely nowhere near that time yet, I know phones have gotten rid of audio jack’s but look how many people complained about that. Posted in Nintendo Hacks Tagged audio, Ground, Ground Loop, mixing, nintendo, pc, signal, switch, transformer Post navigation If you’ve never heard of a ground loop before, take a look at this guide to we featured a few years ago. It’s a great read if you’ve ever been stumped by a mysterious noise in a project. With that out of the way, the task of mixing the Switch audio with sources from other devices could finally proceed unimpeded.Īs an investigation into a nuisance problem, this project goes into quite a bit of depth about ground loops and carrying signals over various transforming devices. It took a few revisions, but eventually they settled on a circuit which improved sound quality tremendously. set about solving the issue using an isolating transformer. When sending the Switch audio into a computer a loop like this formed. The low impedance path creates oscillations and ringing which is especially problematic for audio. Ground loops occur when there are multiple paths to ground, especially in wires carrying signals. was running into just this sort of frustrating problem while attempting to send audio from a Nintendo Switch into a PC, and documented some of the ways he attempted to fix a common problem known as a ground loop. So much so that engineers can spend their entire careers specializing in grounding and bonding. Issues with proper grounding can be complicated, confusing, and downright frustrating to solve. Grounding of electrical systems is an often forgotten yet important design consideration.
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