#1922920 - 04/06/08 05:59 PM
Noise through monitors
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R.F.T
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Need some input. I have got an M Audio Audiophile 192 Sound card and am running out or the card via TRS into TRS balanced to my monitors, KRK rp8's, and am getting noise from the computer like when I move my mouse around I can hear it through the monitors. So I need better cables or shouild I go TRS out from sound card to XLR into balanced input into the monitors? Do you think this would help?
If this post shows up twice sorry. I swear I posted this an hour ago but it seems to have vanished.
Ron
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What can this strange device be?
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It's got wires that vibrate, and give music
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#1923036 - 04/07/08 05:23 AM
Re: Noise through monitors
[Re: R.F.T]
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Griffinator
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You have software issues that aren't related to your cables.
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#1923210 - 04/07/08 10:58 AM
Re: Noise through monitors
[Re: Griffinator]
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Trucks
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Are you using a wireless mouse?
ADDED: Or an optical mouse?
It could be a fault with the mouse itself.
Edited by Trucks (04/07/08 10:59 AM)
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#1923272 - 04/07/08 12:04 PM
Re: Noise through monitors
[Re: Trucks]
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R.F.T
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Trucks, I am using an optical mouse.
Griffinator. Please explain. THanks
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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#1923285 - 04/07/08 12:34 PM
Re: Noise through monitors
[Re: R.F.T]
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Trucks
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Have you tried another mouse?
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#1923556 - 04/07/08 09:17 PM
Re: Noise through monitors
[Re: Trucks]
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MILLO
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Try a blind mouse... bad joke, I know. I'm just glad to see yo guys here. 
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#1923567 - 04/07/08 09:44 PM
Re: Noise through monitors
[Re: R.F.T]
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miroslav
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when I move my mouse around I can hear it through the monitors.
That's weird...
So....are both the mouse and the M-Audio card running on the USB bus...?
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#1923647 - 04/08/08 05:07 AM
Re: Noise through monitors
[Re: miroslav]
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R.F.T
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when I move my mouse around I can hear it through the monitors. That's weird... So....are both the mouse and the M-Audio card running on the USB bus...?
M audio card is a PCI card. I have not tried a different mouse yet. Actually with the monitors powered up there very low white noise coming through them. I will have to try to power them up with the computer off and see if it changes.
EDIT: Powered off computer and monitors are clean, no noise. Hmmm.
Edited by R.F.T (04/08/08 05:20 AM)
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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#1923684 - 04/08/08 06:18 AM
Re: Noise through monitors
[Re: R.F.T]
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Bill@Welcome Home Studios
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Have you gone into the Windows Start/Settings/Control Panel/Sound and Audio Devices folder, hit the 'sounds' tab, and selected "No Sounds"? (Not blank, but actually "No Sounds")
Bill
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#1923686 - 04/08/08 06:23 AM
Re: Noise through monitors
[Re: R.F.T]
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Griffinator
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Griffinator. Please explain. THanks
Not sure how else to say it. Basically, you're barking up the wrong tree. If you hear noise when your mouse moves, it's noise being generated to the soundcard. It's not an RF issue, because you don't have a wireless mouse. It's not a crosstalk issue, because the devices don't share a bus. Therefore, it's a software issue. Try what Bill said, then experiment elsewhere.
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#1923693 - 04/08/08 06:30 AM
Re: Noise through monitors
[Re: Griffinator]
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Bill@Welcome Home Studios
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Griffinator. Please explain. THanks ...If you hear noise when your mouse moves, it's noise being generated to the soundcard..... Therefore, it's a software issue. Try what Bill said, then experiment elsewhere.
My thought was that mouse sounds might be a part of the profile. Turning off Windows sounds is a good idea for recording anyway, but it will also help to isolate this problem, if it IS a problem.
Bill
Edited by Bill@Welcome Home Studios (04/08/08 06:31 AM)
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#1923794 - 04/08/08 09:08 AM
Re: Noise through monitors
[Re: Bill@Welcome Home Studios]
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R.F.T
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Thanks guys!!
I will try that Bill and let you know what happens.
Ron
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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Top
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#1924109 - 04/08/08 05:54 PM
Re: Noise through monitors
[Re: Griffinator]
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R.F.T
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Griffinator. Please explain. THanks Not sure how else to say it. Basically, you're barking up the wrong tree. If you hear noise when your mouse moves, it's noise being generated to the soundcard. It's not an RF issue, because you don't have a wireless mouse. It's not a crosstalk issue, because the devices don't share a bus. Therefore, it's a software issue. Try what Bill said, then experiment elsewhere.
Bill I tried your suggestion and still the same thing. Griff I agree with you 100%. I turned my fan down so I could hear the computer working, HD's and so forth, and when my HD's were doing there thing you could hear them through the monitors, for lack of a better term, electrical sounds. Next I am going to try to install the card in the other PCI slot. I am grabbing at straws here so if any of you have more suggestions I am all ears.
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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Top
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#1924114 - 04/08/08 06:16 PM
Re: Noise through monitors
[Re: R.F.T]
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Griffinator
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Your card is faulty if you're hearing your hard drive through the speakers.
I've never liked cards with "pigtail" audio bus connections, they're always so frail.
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#1924210 - 04/08/08 10:47 PM
Re: Noise through monitors
[Re: R.F.T]
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Jim Quinn
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Is it possible that you thought mouse movements created the noise, when in fact your mouse movements coincided with activity on the hard drive?
Stab in the dark, but perhaps your power supply is at fault (whether malfunctioning or not rated for the power requirements of your new setup). Not being able to provide consistent regulated voltage/current levels expected by the M-Audio 192 card?
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#1924271 - 04/09/08 05:27 AM
Re: Noise through monitors
[Re: Jim Quinn]
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R.F.T
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No. Even with the hard drives not working I can still hear the mouse movements. I can take the mouse and slide it back and forth and hear it through the monitors. It is a separate, distinct, noise from he HD's which generate a noise all there own.
The power supply crossed my mind but don't think that is it.
Things I have tried are to re install software and card, Installed it in different PCI slot, Made sure all internal cables are not near the card as to cause interference, switched from the monitor outs to the s/pdif outs. Nothing worked.
I called sweetwater to do an exchange or get a different card altogether. I think I must have a faulty card as Griff said. If a different card does the same thing then it must be my system. This is my first higher or mid level end consumer(for me) sound card and I suspect this noise issue I am having should not be the norm.
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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Top
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#1924528 - 04/09/08 02:09 PM
Re: Noise through monitors
[Re: R.F.T]
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R.F.T
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Well the Tech at sweetwater did mention the power supply so I will check into that. Other then that he really had no idea. I want a quite clean noise free playback, even when there is silence. How do I get that??
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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Top
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#1929523 - 04/19/08 06:57 PM
Re: Noise through monitors
[Re: R.F.T]
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R.F.T
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Tech at sweetwater suggested I put a 3 to 2 (no ground plug) on my computer plug as a test to see if it was dirty power and sure enough is so now I am looking power conditioners. Anyone have any suggestions? Looking at $100 to $200 range w/ at least 8 outlets, 10 would be better.
Ron
_________________________
What can this strange device be?
When I touch it, it gives forth a sound
It's got wires that vibrate, and give music
What can this thing be that I found?
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Top
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#1929604 - 04/20/08 05:17 AM
Re: Noise through monitors
[Re: R.F.T]
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Griffinator
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Putting a 3 to 2 on your computer is called lifting the ground. It doesn't "test for dirty power", it tests for ground loops. The answer to your problem isn't a cheap "power conditioner", it's getting the computer off the same circuit as the monitors.
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#1929646 - 04/20/08 08:28 AM
Re: Noise through monitors
[Re: Griffinator]
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miroslav
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You can try some of the $100-$200 solutions...but I think in the end you may need to step up and get a more pro-level power conditioner/regulator.
The higher-end Furman products are a good choice...the AR and IT units. I have a pair of their AR-1220 Voltage Regulators/Conditioners, and most of my studio gear runs quite happy with it. I may add an IT-1220 Balanced Power box after the AR1220....just to further silence even the smallest AC noise and ground loop issues, as I would then have voltage regulation first…followed by conversion to balanced power…and a double layer of conditioning and surge suppression.
One thing though...and this may work for you too...while I run all my studio rack gear, console, monitors guitar amps...etc...through the AR1220’s...I don't run my computer off them .
Instead, I have a large APC USP that runs the computers and LCD monitors.
That UPS is plugged into it's on dedicated line...while the AR1220 units have their own dedicated line.
Those power lines go straight to my main building breaker box…each one on it's own breaker.
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#1930453 - 04/21/08 10:08 PM
Re: Noise through monitors
[Re: Griffinator]
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Jim Quinn
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Putting a 3 to 2 on your computer is called lifting the ground. It doesn't "test for dirty power", it tests for ground loops. The answer to your problem isn't a cheap "power conditioner", it's getting the computer off the same circuit as the monitors.
I agree, this seems like a ground loop issue. Not sure if a power conditioner would help unless it provides a degree of ground isolation. While dirty power can lead to excess ground current noise, it's more likely you have something else causing this issue.
Have you tried lifting the ground on the speaker power source (use the same 3 to 2 plug) while the computer is plugged in without the 3 to 2 adapter?
If you try this and your computer noises are still present, then you might have a faulty ground on that power outlet or circuit, but it could be several other things as well (including faulty power supply for monitors or computer).
Are the power outlets for the computer and monitors on the same power distribution panel circuit breaker?
Try identifying any equipment using the same circuit(s) and disconnecting them while troubleshooting the problem. If you hear the noise and it goes away after removing something from the equation... it's a clue.
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#1930479 - 04/22/08 01:23 AM
Re: Noise through monitors
[Re: R.F.T]
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Bill@Welcome Home Studios
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Tech at sweetwater suggested I put a 3 to 2 (no ground plug) on my computer plug as a test to see if it was dirty power and sure enough is so now I am looking power conditioners. Anyone have any suggestions? Looking at $100 to $200 range w/ at least 8 outlets, 10 would be better.
Ron
I can't see that answer helping you. Those are just fancy power strips, without much more going on than the trypical $15 strip from a computer store, other than the rack mounting and the lights and meters.
If I had to lift any ground, it qould be the ground to the powered monitors. If what you say is true, your monitors are getting ther ground from the wall plug power, but are also getting ground from the sound card connection. That is two paths to ground, which is a no-no.
So how do you get around this? If you are using balanced signal interconnects between the sound card and the monitors, it is easy.... break the ground connection on one end(the Brits call it a 'screen', and this is more accurate... and the screen only needs to be connected at one end. You should be using this system to hook up your rack gear, by the way.) in the interconnects. This breaks the loop. But if you are running unbalanced signal connections, then you can't break the ground/screen, as there is then no wire for the return signal. So you are left with the less desirable answer of putting a 3 to 2 adapter on the power cords to the monitors.
Bill
Edited by Bill@Welcome Home Studios (04/22/08 01:24 AM)
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