Tear Em 'Up
Are we talking electrical plug AMaHM? Or...a plug of chewing tobacco? Or is this some new slang word for adult relations, please be as specific as possible......
Posté Fri 16 Nov 07 @ 9:31 pm
A Man and His Music
I don't chew tobacco.
Posté Fri 16 Nov 07 @ 9:33 pm
lee eather
Ok so lets start again.
Tearemup could you please post that link again or the item that is listed so i can search it, cheers!
Paz75, i will take your advice into consideration, but definetly wont be cutting any earth pins if its dangerous as people have said, and iam a novice and i dont think any1 should be trying it at all who doesnt know what is going on, Dont you? I know you say that it may not kill you but if its dangerous then it shouldnt be advised.
Paz75, the humm is iam guessing around 60hz, seems to be a fairly low pitched, buzzing sound if that helps. The sound increases in db and pitch and fluctuates if i click on anything when the processor has to do work.
I say it is a ground loop and the isolators are the way to go.
Tearemup could you please post that link again or the item that is listed so i can search it, cheers!
Paz75, i will take your advice into consideration, but definetly wont be cutting any earth pins if its dangerous as people have said, and iam a novice and i dont think any1 should be trying it at all who doesnt know what is going on, Dont you? I know you say that it may not kill you but if its dangerous then it shouldnt be advised.
Paz75, the humm is iam guessing around 60hz, seems to be a fairly low pitched, buzzing sound if that helps. The sound increases in db and pitch and fluctuates if i click on anything when the processor has to do work.
I say it is a ground loop and the isolators are the way to go.
Posté Sat 17 Nov 07 @ 12:42 am
Tear Em 'Up
Posté Sat 17 Nov 07 @ 1:04 am
TopHouse
TearEmUp wrote :
http://www.pssl.com/Images/buttons/addToCartButton.jpg
Yep, an add to cart button cures everything! Even better than snake oil! ;o)
For anyone looking for a safe answer, do a search for "ground loop isolators" It's no good me putting a link as people are reading this worldwide. Basically they look like a small plastic case with audio (rca/phone) leads coming out of them.
These are the ones i use:-
http://cpc.farnell.com/jsp/Car,+Leisure+&+Hobbies/In+Car+Entertainment/UNBRANDED/B070./displayProduct.jsp?sku=CP03283
Posté Sat 17 Nov 07 @ 3:24 am
lee eather
I wasnt sure if i was being joked with when i seen the add to cart button. lol.
They look like the go Tophouse, the ones i found were boxed shape with female either end.
Give it a go, thanks to everyone for thier input.
They look like the go Tophouse, the ones i found were boxed shape with female either end.
Give it a go, thanks to everyone for thier input.
Posté Sat 17 Nov 07 @ 4:23 am
Paz75
well, i have had a similar problem in my apartment with a turntable. its the exact same problem as your's but the only diff is that i have a 12khz frequency being generated that fluctuates in loudness. i have tried everything including extremely expensive furman power conditioners and nothing has helped. only thing i have not tried is a isolation transformer. im a bit against that i dont want to impede the sound quality, its for digitizing my vinyl.
what i did in the end is buy a cheap UPS for a computer. i plug everything into the UPS and then yank the mains so my recording station runs on backup battery. its a pain because the UPS is small and i can digitize 1 track, but it means there is no noise whatsoever
what i did in the end is buy a cheap UPS for a computer. i plug everything into the UPS and then yank the mains so my recording station runs on backup battery. its a pain because the UPS is small and i can digitize 1 track, but it means there is no noise whatsoever
Posté Sat 17 Nov 07 @ 6:40 am
lee eather
^^Paz have you tried one of these http://www.spankrecords.com.au/stock/djgear/djGearDetail.asp?id=10559
Its called a Xitel inport, built especially for converting vinyl to digital and it comes with a ground loop isolator as well.
Still your idea may be fine, but i seen it only a few days ago.
>>>>Back on my subject, i realised that the impedance only comes when i hook in the powered speakers into the XLR inputs...
When i use the RCA master out in my studio for my studio speakers they work fine, no buzz nothing but as soon as i plug in my XLR speakers the humm starts comming out of the studio speakers and the 15 inch powered speakers. And only out of the 15inch speakers if only they are plugged in and not teh studio speakers.
It seems to be the 15inch speakers, is it just because of the amplification?
Its called a Xitel inport, built especially for converting vinyl to digital and it comes with a ground loop isolator as well.
Still your idea may be fine, but i seen it only a few days ago.
>>>>Back on my subject, i realised that the impedance only comes when i hook in the powered speakers into the XLR inputs...
When i use the RCA master out in my studio for my studio speakers they work fine, no buzz nothing but as soon as i plug in my XLR speakers the humm starts comming out of the studio speakers and the 15 inch powered speakers. And only out of the 15inch speakers if only they are plugged in and not teh studio speakers.
It seems to be the 15inch speakers, is it just because of the amplification?
Posté Sat 17 Nov 07 @ 7:06 am
Paz75
well i dont claim to know the full science about it, but you have a ground loop problem.
grounding happens through the fastest path in any circuit. when you start connecting together different machines that are all powered by their own supplies, loops occur where there are paths with differening lengths. im told be engineers that there are very few commercial products that actively work against this problem.
i know for a fact from my days as a procurement agent in aerospace that parts that help get rid of these problems can be very expensive, which is why you dont find them in commercial products. at this point i dont know much more to say.
are your speakers powered or amped? if so, where are they plugged in, are they on the same line? ive had the exact opposite where i needed the xlr to get rid of hum.
i think the important thing which is the bit i pasted above from the net, there are different kinds of noises which are caused by different things and need to be treated in different ways. assuming it's one kind is the first mistake.
grounding happens through the fastest path in any circuit. when you start connecting together different machines that are all powered by their own supplies, loops occur where there are paths with differening lengths. im told be engineers that there are very few commercial products that actively work against this problem.
i know for a fact from my days as a procurement agent in aerospace that parts that help get rid of these problems can be very expensive, which is why you dont find them in commercial products. at this point i dont know much more to say.
are your speakers powered or amped? if so, where are they plugged in, are they on the same line? ive had the exact opposite where i needed the xlr to get rid of hum.
i think the important thing which is the bit i pasted above from the net, there are different kinds of noises which are caused by different things and need to be treated in different ways. assuming it's one kind is the first mistake.
Posté Sat 17 Nov 07 @ 10:49 am
lee eather
We'll they are powered from the power point and they have amplifiers built in. They plug into my mixer but even still the humm should be comming through the master out and the XRL outs as well, but the humm is only present when i plug the 15inch amplified speakers into the XLR outputs. If iam just using just the master out into my studio speakers (m-audio bx5s-amplified) there is no sound at all, when i plugg the amplified speakers in the humm is present in both? ...Hummmm...xcuse my stupid play on words
Posté Sat 17 Nov 07 @ 12:40 pm
djdokk
KILLING oneself by removing the ground is a possibility taht really exist. DC source use to feed a lap top is good enough especially if you get the electical input during the repolarization phase of the heart. Yes, your heart is some kind of an electrical pump that my short circuit !
You a ground loop (ex Buzz Off) and you might eliminate the humming. This is waht I do and it works fine.
You a ground loop (ex Buzz Off) and you might eliminate the humming. This is waht I do and it works fine.
Posté Wed 12 Dec 07 @ 11:14 pm