Hissing noice from speakers

[kumaran]

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Dear experts,
I'm having Compaq Presario B1015 Laptop. It has P4 3.2 GHz and RealTek audio
HW.
There is a hissing noise always from speakers. If I increase the volume (not
playing any audio) the hissing noise is very audible and it is annoying.

Is there something wrong with the audio HW ???

Did any one had such problem...

Regards
Kumaran

 

[Guest]

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

"Kumaran" <subbarayan.elangkumaran@de.bosch.com> wrote in message news:<cnkpsd$aj1$1@ns2.fe.internet.bosch.com>...
> Dear experts,
> I'm having Compaq Presario B1015 Laptop. It has P4 3.2 GHz and RealTek audio
> HW.
> There is a hissing noise always from speakers. If I increase the volume (not
> playing any audio) the hissing noise is very audible and it is annoying.
>
> Is there something wrong with the audio HW ???
>
> Did any one had such problem...
>
> Regards
> Kumaran

You may want to see if you are feeding the hissing sound into your
hardcard inadvertently via one of its inputs. This could happen even
if you don't have anything plugged into the input.

Go to Sounds and Audio Devices control panel, and click on Advanced...
button. You'll see a bunch of volumn controls for each of your
outputs. You need to change the inputs, so, from the Options menu,
pick Properties and select "Adjust volumne for Recording." Click OK,
and now click the mute checkbox on any input that you are not
currently using. You just may find that one of these stops the
hissing.

I've had this problem because I have a TV tuner card, and the audio
output of the TV tuner card is connected via a small wire to the Line1
input of my audio card. Sometimes, my TV software doesn't mute that
line when I turn it off, so a low hiss ends up coming down the line
and out my speakers.

HTH,
-Todd