Started by Famicom.In.My.Blood, July 15, 2021, 10:10:43 am
Quote from: adori_12 on July 15, 2021, 04:38:37 pmAudio buzz is indeed normal and should be there, but it should be barely audible. Usually it's caused by a faulty and/or third-party AC Adapter, is you PSU official?If so, then check your cables. Composite always has audio buzz although it should be a bit less noticeable when using official cables. RGB cables (the ones I am assuming you are using since you modded your system) usually nearly eradicate buzzing, but only if they're good quality. Cheap RGB cables have poor shielding and are very prone to buzzing, color bleed, checkerboard patterns, etc.If your cables are properly shielded, then your house's voltage may have something to do. My electrical connections used to be subpar and that sometimes made audio buzz on my consoles super loud.
Quote from: P on July 16, 2021, 04:25:30 amMy AV-modded Famicom (composite video only) had a permanently audible buzz. Though it was the most audible on silent screens in games (like when pausing some games and in the Everdrive menu) it was quite audible when there was sound as well. So yes noise on the audio-line is indeed a thing even on a normal Famicom with just a (good quality) AV-mod.I tried other RCA-cables that came with my MSX and looked to be of a bit better quality than the cheap ones I had been using with the Famicom, and these seemed to make it a little better but not by too much as the buzz was still audible on silent screens. Then I tried the RCA-cables that came with my stereo computer/bookcase speakers I bought for the TV, and now the buzz is only audible on silent screens if volume is turned up real high and not at all when playing at a normal volume on screens with or without a BGM. So these RCA-cables was clearly of much better quality.I know that Viletim's NESRGB has problems with audio noise, that's why he uses a special variant of the Framemeister-pinout RGB cable with audio in its own separate cord.Does it buzz even when using composite video on the same Famicom?And what power supply do you use? Replacing the original one is not a problem as long as the new one is at least as good and has all the correct values. The NESRGB might draw more power though, so you might want one with a little more juice than the original one. And by juice I mean more current (ampere) output and not voltage (volt) output. If you also use an Everdrive or Powerpak, that will draw even more juice.