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Hearing My Pc Processing Through My Headphones.
| Good [+2]Toggle ReplyLink» nothingnopenope replied on Thu Mar 12, 2009 @ 6:48pm |
 Coolness: 201235 | I've noticed this problem primarily with integrated sound cards in laptops or on motherboards. I've never noticed this with higher quality sound cards (pro ones, not soundblaster) whether internal or external.
I think every system I have had in the last few years had this problem to a degree if I used the built in sound. |
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| Good [+1]Toggle ReplyLink» cutterhead replied on Thu Mar 12, 2009 @ 7:17pm |
 Coolness: 131605 | you all need this
[ store.solar-electric.com ] because of this you explained [ en.wikipedia.org ] this should be on some line not present on some pcb [ en.wikipedia.org ] im trying to find the link, but if you take a ferrite ring, and roll your headphone wire 2 to 6 times or more depending on what you want to acheive in that ferrite ring, u should suppress the noise, you can do that with lines too. ( actually it is design stress by intel design papers). you can find these rings on power cable in old electronics before the power supply. like i said , bad house ground or common source will ampify the matter and spreadspectrum adjacent components. Update » cutterhead wrote on Thu Mar 12, 2009 @ 7:24pm if you want i can explain why surrounding a conducting line with ferrite isolate the conductor like a faraday cage. Update » cutterhead wrote on Thu Mar 12, 2009 @ 7:30pm look at UHF design you see in its definition the importance of radiance and lenght and placement of objects . therefore bringing us back to audible magnetude , were we see the same forces into action.
yes you can help picking up tv radio frequency or radio channel depending how close you are of it. metals interact a lot, remeber chem ? |
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| Good [+2]Toggle ReplyLink» DynV replied on Thu Mar 12, 2009 @ 8:40pm |
 Coolness: 108815 | wow thanks ! next time a computer buzz I'll get one of those cord bumps on my headphone line. |
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| Good [+1]Toggle ReplyLink» cutterhead replied on Thu Mar 12, 2009 @ 9:00pm |
| Coolness: 131605 | yea , your welcome, i apreciate they actually written the truth on the matter online. i love how wikipedia expose matters in their true nature ...
"Because it costs money to filter out noise, there is always a balance struck between regulatory compliance and perfect filtering in these devices." Update » cutterhead wrote on Thu Mar 12, 2009 @ 9:05pm if all required ferrite was used , the appliances would i think weight a third more or so. Update » cutterhead wrote on Thu Mar 12, 2009 @ 9:10pm by the way StrangeDahlia if you need soldering work in your laptop i can, all you need is ask. Update » cutterhead wrote on Thu Mar 12, 2009 @ 9:12pm laptop's second common thing that breakdown are the connectors sockets. Update » cutterhead wrote on Thu Mar 12, 2009 @ 9:20pm hey dyn, remember that if the FSB (mother board front side bus) that leaks , you will need to cover the emmited area if you really want to suppress it, doubling the metal sheet , or cutting a piece of metal & polishing it (cleanroom stressed) then covering your processor will just not do it, you would need to bond everywhere on the card, witch could result in oubvious unwanted shorts.
but even so, the noise could be of various type ( standing wave, inducting noise, radiation, etc etc etc...) even heat or humid weather can affect this if you really tune in. first you have to visualy inspect and then investigate accordingly. everymodel is unique. |
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| Good [+1]Toggle ReplyLink» E73V3N replied on Sat Mar 14, 2009 @ 1:51pm |
 Coolness: 47005 | Originally Posted By CUTTERHEAD
but what is really common , is that the appliance is made too small, and you get to hear cross talk since all is compressed so tiny. This sounds like the most plosible explanation ! Originally Posted By CUTTERHEAD
one other thing some computer now use SPREADSPECTRUM genclock, and sometimes THIS CAUSES IT since it tries to hide computer clock cycles from being environmentally picked up on sending the clock on many different spectrums instead of the dedicated clockgens. Tried it, did not fix the problem Originally Posted By CUTTERHEAD
the question is : has it always did this ? or did it occured from usage. Yep i could hear it on the 3 sound card my pc had (onboard, usb, 35 $ soundblaster) Originally Posted By CUTTERHEAD
anyways, here is a quick fix, you take your headphone wire. by using the jack end. you roll a leng of wire around a FERRITE RING. Unless jojo's cockring is made out of ferrite, i dont have acess to such a thing ! Thanks for all the infos, i learned a lot of thing while investigating this problem, but i think i will live with it ! (i was hoping for a software fix since my knowledge in hardware is...well "limited" would be an understatement...) |
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| Good [+1]Toggle ReplyLink» cutterhead replied on Sat Mar 14, 2009 @ 2:44pm |
| Coolness: 131605 | ferrite , metal, same thing , one more valuable than the other...
ferrite is the equivalent of presswood. Originally Posted By CUTTERHEAD the question is : has it always did this ? or did it occured from usage. Originally Posted By E73V3N Yep i could hear it on the 3 sound card my pc had (onboard, usb, 35 $ soundblaster) with this info, i know for shure this isnt a diver problem, you either have a really small head phone wire and thus is ground pickup the processor. 1> i would make shure all ground point on the motherboard are connected 2> i would make shure the house 's ground is a good ground ( some old development use the common instead of real earth ground. this means that this is a verry unstable ground , one also that runs in the Hydro quebec lines , pickin up the neibours and powerline witch create a carrier for the noise) 3> and then i would turn to isolate my sound card , by puttind a grounded metal plate under and over WITHOUT TOUCHING THE CIRCUIT AT ALL but the ground points. a ground plane is like a faraday cage, it will trap radio signal and grounding most of the signals energy. before you embark in such "isolation" make shure point 1 & 2 are meet. one other thing could be a defective power source => ie your powersupply. but since it always did this my 1st gess is that your headphones wires are too small and pick up the noise . it will be so , if you jack into your boombox and see the problem going away ( this will mean that a mirroring occurs in the lengh of wire, but when you match components mirroring gets nullified ) soory this sounds vague, let me rephrase : do you see the problem occuring in your soundsystem too ? some of them dont have grounds ( only 2 wires on the power cord ) so wiring your computer case to your amp case could resolv this ) read about " BAD GROUND LOOPS " this is when there is too much grounds , and then the faraday effect turns on you and grounds planes are looped , and cause feedback and EMMIT ! plus on top that this is uncontrolled standing waves...) grounds should always be going one way, never going back on itself of having too many grounds taping the same point. Update » cutterhead wrote on Sat Mar 14, 2009 @ 2:51pm what im trying to say is that if your headphones wires ' ground is too small it will retain instead of letting go.
tell me if it still does it from , let say your home theater system , other than your headphones . this will milestone an other side of what your having. |
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| Good [+1]Toggle ReplyLink» DynV replied on Sat Mar 14, 2009 @ 9:52pm |
| Coolness: 108815 | Originally Posted By CUTTERHEAD
hey dyn, remember that if the FSB (mother board front side bus) that leaks , you will need to cover the emmited area if you really want to suppress it, doubling the metal sheet , or cutting a piece of metal & polishing it (cleanroom stressed) then covering your processor will just not do it, you would need to bond everywhere on the card, witch could result in oubvious unwanted shorts. but even so, the noise could be of various type ( standing wave, inducting noise, radiation, etc etc etc...) even heat or humid weather can affect this if you really tune in. That seems like a lot of trouble, I suppose using an external audio processor would fix this, I'd just get that if it annoyed me to that point. |
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| Good [+1]Toggle ReplyLink» cutterhead replied on Sat Mar 14, 2009 @ 10:35pm |
| Coolness: 131605 | euh , actually im still waiting to know if she sees this with only her headphone .
mine only does this in headphones, as soon as i feed it to my amps , their properly grounded , using good AWG caliber , and no more noise. ie PROPER MATCHING the metal mod, is an engineering step they missed and im advising this as a last solution only. now if i can only know how big is the headphone wire in diameter and lenght, and if it only happens with headphones. only then , you will know what. dunno could also be just that its a cheap sound card ( no offence ) and its how it goes... as for myself , i shit metal by tons, so making this is a whole lot less expensive than an external card , witch i dont like anyways. 3v3lyn : refresh me , i had for idea first that your computer was a laptop , but now i feel its a tower, can you tell me what you have again. |
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Hearing My Pc Processing Through My Headphones.
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