TV Card Line-in Audio Interference

[turbines]

I hear a scratchy static like sound from my speakers when ever my hard drive runs or when I move or scroll with my mouse.

It only does this when an external jumper is connected between my tuner card and sound card. It does this constantly regardless as to whether the TV application is being used or not. It also does the same with my Santa Cruz card or my on-board Realtek AC97.

I have tried 2 other tuner cards and even tried installing them in different PC slots. When I record from the tuner card the sound glitches record too. I hear this as soon as the PC boots up and the only way to stop it is to unplug the jumper. Disabling the tuner audio & video in device manager has no effect.

I thought maybe the jumper wasn't properly shielded so I tried another but that was no help. I am baffled. Can anyone help please.

[itsplayed]

It only does this when an external jumper is connected between my tuner card and sound card.

Welcome to the forums turbines......What purpose does this serve? What TV Tuner card are you using?

[turbines]

It provides the TV audio out to the audio card line in. I believe all tuner cards use a jumper like this except maybe the ATI all-in-one display card. The card I am using is a Hauppauge BT878 based card

[itsplayed]

I see.....Check your IRQs for sharing, especially those for your graphics and audio cards.
Have you updated the drivers for your devices?
What graphics card are you running with?
Have you made sure to use the 'line' input on the soundcard and not the 'mic' input?

[turbines]

Yes I checked for IRQ conflicts and found none. The display card is an ASUS NVIDIA GeForce4 MX 4000. The jumper is in the "line In" and not the "mic".

[turbines]

This evening I decided to uninstall programs one at a time. The interference stopped just as soon as I removed Diskeeper 2007. Anyone have a clue what is going on?

[itsplayed]

Did you have Diskeeper to run manually or was it set on auto-pilot?

[monnie101]

I was using onboard Realtek AC97 sound as well (hehehe I can now admit it now that I have a new pro audio setup. Believe it or not though, I did a lot with what I had). Same exact thing used to happen to me with my ATI All-in-Wonder. It's a custom wire that plugs in shared with your speakers and lines to record the audio with the video.

Now that I got the new audio setup, I connect the video tuner card's audio lines to a seperate in and out on my Emu 1616 breakout box while my speakers get their own sound out.

So for me the problem was that the card was sharing connections. Now they have their own.