Artifact noise in my sound system.....Any suggestions?

[Ron Cliborn]

I get a fair amount of noise in my computers sound system. I'm using
an on-board sound "card" that jacks into the aux port of my Home
Stereo system. When there is no intentional sound outputted, I hear a
constant static. When I move my mouse or print I get a different
noise. ( My mouse is wireless) I think even my DVD cranking up to
speed imparts a whine.
I know you can get something like the static if you have a power cable
running parallel to the speaker or RCA cables. In a car I'd think
maybe a ground fault or I'd put a (( it has been a very long time
since I've done audio...)) [ metal bar wrapped in copper wire, or
even just wrapped/coiled copper wire] wrapped around the speaker or
RCA line. I don't remember what it is called but it can also be used
to block high freq sounds in an audio system.

Anyway, any suggestions?

Thanks

ron

 

[Mike T.]

I get a fair amount of noise in my computers sound system. I'm using
an on-board sound "card" that jacks into the aux port of my Home
Stereo system. When there is no intentional sound outputted, I hear a
constant static. When I move my mouse or print I get a different
noise. ( My mouse is wireless) I think even my DVD cranking up to
speed imparts a whine.
I know you can get something like the static if you have a power cable
running parallel to the speaker or RCA cables. In a car I'd think
maybe a ground fault or I'd put a (( it has been a very long time
since I've done audio...)) [ metal bar wrapped in copper wire, or
even just wrapped/coiled copper wire] wrapped around the speaker or
RCA line. I don't remember what it is called but it can also be used
to block high freq sounds in an audio system.

Anyway, any suggestions?

Thanks

ron

The obvious suggestion would be to install a good sound card, something by
Turtle Beach perhaps. But a less obvious solution . . .

If I was doing what you are doing, I would not only install a good sound
card, but I'd make the connection from sound card to stereo be DIGITAL (and
preferably optical). But then I don't know if your stereo has digital
inputs. -Dave

 

[JAD]

I get a fair amount of noise in my computers sound system. I'm using
an on-board sound "card" that jacks into the aux port of my Home
Stereo system. When there is no intentional sound outputted, I hear a
constant static. When I move my mouse or print I get a different
noise. ( My mouse is wireless) I think even my DVD cranking up to
speed imparts a whine.
I know you can get something like the static if you have a power cable
running parallel to the speaker or RCA cables. In a car I'd think
maybe a ground fault or I'd put a (( it has been a very long time
since I've done audio...)) [ metal bar wrapped in copper wire, or
even just wrapped/coiled copper wire] wrapped around the speaker or
RCA line. I don't remember what it is called but it can also be used
to block high freq sounds in an audio system.

Anyway, any suggestions?

Thanks

ron

1. Make sure that the stereo amp is plugged into the same outlet or surge
protector as the computer.
2. Ground externally with a strap between the cases of the comp and amp.
3. Make sure your not 'over driving' the amp with the volume too high out of
the comp.


HTH

 

[johns]

My experience with this is a home stereo is
far too good a sound system to take input
from a computer sound card of any kind.
The computer sound systems are designed
to help suppress this background digital
hiss which is mostly high frequency pops
and clicks coming very fast. The American
Ear died long ago when teenagers started
listening to mp3s .. which are pure sound
garbage. And that is the quality of computer
sound.

johns

 

[SteveH]

My experience with this is a home stereo is
far too good a sound system to take input
from a computer sound card of any kind.
The computer sound systems are designed
to help suppress this background digital
hiss which is mostly high frequency pops
and clicks coming very fast. The American
Ear died long ago when teenagers started
listening to mp3s .. which are pure sound
garbage. And that is the quality of computer
sound.

johns

LOL!!

 

[Mike T.]

My experience with this is a home stereo is
far too good a sound system to take input
from a computer sound card of any kind.
The computer sound systems are designed
to help suppress this background digital
hiss which is mostly high frequency pops
and clicks coming very fast. The American
Ear died long ago when teenagers started
listening to mp3s .. which are pure sound
garbage.

Here we go again. MP3 is a technology. Just because it is usually mis-used
does not make it garbage. If you can tell the difference between a factory
pressed CD and a recording of that same CD encoded at 320K bitrate MP3, it
was just a lucky guess (you had a 50/50 shot at it)

I'd agree with you that the typical 128K bitrate MP3 is garbage,
hough. -Dave

 

[JAD]

My experience with this is a home stereo is
far too good a sound system to take input
from a computer sound card of any kind.
The computer sound systems are designed
to help suppress this background digital
hiss which is mostly high frequency pops
and clicks coming very fast. The American
Ear died long ago when teenagers started
listening to mp3s .. which are pure sound
garbage. And that is the quality of computer
sound.

johns

OH craaaap A LAB geek and an audiophile....i pity your wife

 

[johns]

It is true. I once worked in a stereo shop.
I was a geek before there were geeks.

johns

 

[Sjouke Burry]

I get a fair amount of noise in my computers sound system. I'm using
an on-board sound "card" that jacks into the aux port of my Home
Stereo system. When there is no intentional sound outputted, I hear a
constant static. When I move my mouse or print I get a different
noise. ( My mouse is wireless) I think even my DVD cranking up to
speed imparts a whine.
I know you can get something like the static if you have a power cable
running parallel to the speaker or RCA cables. In a car I'd think
maybe a ground fault or I'd put a (( it has been a very long time
since I've done audio...)) [ metal bar wrapped in copper wire, or
even just wrapped/coiled copper wire] wrapped around the speaker or
RCA line. I don't remember what it is called but it can also be used
to block high freq sounds in an audio system.

Anyway, any suggestions?

Thanks

ron

1. Make sure that the stereo amp is plugged into the same outlet or surge
protector as the computer.
2. Ground externally with a strap between the cases of the comp and amp.
3. Make sure your not 'over driving' the amp with the volume too high out of
the comp.


HTH

One of my cards has the same problem , even with speakers
connected directly(no external amplifier).
You can "hear" the computer calculating, search the disk
etc.
I think the cause is a noisy(and/or low voltage) supply
with bad or to small decoupling capacitors.
Playing with extra earth strap(s) did not achieve anything
useful.
I have been to lazy to get my soldering iron out, but
it would not harm the unit if you added a few quality
capacitors to the supply of the output chips.
Also you could (be careful!!)experiment with some
shielding over and under the audio area.

 

[JAD]

I get a fair amount of noise in my computers sound system. I'm using
an on-board sound "card" that jacks into the aux port of my Home
Stereo system. When there is no intentional sound outputted, I hear a
constant static. When I move my mouse or print I get a different
noise. ( My mouse is wireless) I think even my DVD cranking up to
speed imparts a whine.
I know you can get something like the static if you have a power cable
running parallel to the speaker or RCA cables. In a car I'd think
maybe a ground fault or I'd put a (( it has been a very long time
since I've done audio...)) [ metal bar wrapped in copper wire, or
even just wrapped/coiled copper wire] wrapped around the speaker or
RCA line. I don't remember what it is called but it can also be used
to block high freq sounds in an audio system.

Anyway, any suggestions?

Thanks

ron

1. Make sure that the stereo amp is plugged into the same outlet or surge
protector as the computer.
2. Ground externally with a strap between the cases of the comp and amp.
3. Make sure your not 'over driving' the amp with the volume too high out of
the comp.


HTH

One of my cards has the same problem , even with speakers
connected directly(no external amplifier).
You can "hear" the computer calculating, search the disk
etc.
I think the cause is a noisy(and/or low voltage) supply
with bad or to small decoupling capacitors.
Playing with extra earth strap(s) did not achieve anything
useful.
I have been to lazy to get my soldering iron out, but
it would not harm the unit if you added a few quality
capacitors to the supply of the output chips.
Also you could (be careful!!)experiment with some
shielding over and under the audio area.\

oh yeah that can definetly happen. For instance a PCI card mounted right
under a lan or video card. Or the old style MB that had the audio chip right
next to the winbond, huge noise problems.