🎓 Dr. Freemo 🇳🇱 @freemo@social.cleverlibre.org

@thor They dont generally develop over time. Switching power supplies are known to be noisy. They tend to be at higher frequencies though, but 4khz, while low, seems to be the norm in guitar amps for some reason I cant fathom.

@thor I'd be willing to bet its the powersource. Your speakers are likely using a switching power supply running at 4 khz.. the reason is a few 1) thats typical for guitar amps 2) the harmonics are typical of a square wave, which means your seeing RFI from a PWM like in a switching power supply.

So my top guess right now with like 80% certainty is that it is the power supply to the amp (if its a wall wart its that, if its a straight plug its internal).

@thor Perhaps so but 4 KHZ noise is well known to be common in guitar amps.

That said the source isnt the amp itself but oftent he wall wart... but 4 khz is very characteristic noise for a guitar amp for some reason.

Does the noise continue if only the power is hooked up but no audio in? can you try a different power source?

@thor Wait is this a guitar amp? and with a guitar hooked up?

@thor The volume of the hum is the same regardless of the volume nob? .. hmm thats unlikely to be RFI then

could be the power supply for the system, or a ground loop. If it is coming from outside the speaker it is traveling throught he power line then not the audio lines. RFI wouldnt be powerful enough usually to do much throught here which is what makes me think its a ground-loop issue or internal to the speakers.

Would require some more info to really narrow it down.. anyway if you need help let me know.

@thor No its either RFI or ground-loop issues. If you could get me a waterfall on that sound your hearing I can almost certainly tell you the likely source.

@thor Want my help as an EE?

One of the photos from my many dives int he #Maldives

#SCUBA #OCEAN

@Doppelganger75

I cant see my original post anymore, but as I recall I listed three data points which are the GDP, inflation, and unemployment. I pointed out the GDP was not particularly horrible, while the other two values had a very suggestive rate.

If i was cherry picking I would have left off the GDP

@MattHodges

@mattblaze We dont need to simplify them, we need to make them more complex. Ranked voting would go a long way to fixing things.

@icedquinn The man was so not an asshole they even named one of the books of the bible after him!

One shelf of my rock and mineral collection...

#Rocks #Minerals #Geology

@xavi Take all the time you need. I've set it up for 3 servers so far so should be fairly complete, but I guess we shall see :)

@xavi Also fedipage has its own handle so you can follow it fromt he fediverse:

@fedipage

@xavi If i can be of any help as you setup let me know. I tried to write the readme so it includes every step. But if it falls short I'd like to know where I need to add to it.

@Doppelganger75

Still trying to argue a narrative rather than objectively collect data and review I see....

We listed multiple indicators last we spoke for one. and for another you are looking at GDP suprisingly narrowly (cherry picking fallacy)

@MattHodges