How to get rid of HUMMM sound from Digital Cable Box???

[jamesbond007]

Hey guys! I'm pretty torked here. I have a Motorola Digital Cable receiver and I am getting a lot of background noise. When using the stereo RCA jacks on the back to hook up to my computer/speakers for sound, I get a loud HMMMMM sound and it ruins the quality of my captures. Also, there is noticeable amounts of flickering white lines...sometimes scroll up the viewing screen on my computer.

I'm using a S-Video connection between the Digital Cable receiver and my ATi AIW R9700 Pro. The sound is hooked up via dual RCA stereo from the Cable receiver to a 1/8" mini-stereo plug that goes into my Audigy 2.

I've double-checked my cables and they're good and no hissing when used with other equipment. I can unplug the coax cable from the Digital Cable receiver box and all the HMMM sound goes away! I bought an inline 75 ohm DC block to see if that would help cut the noise, but no avail.

Click here to listen to the background noise that is present when I have the cable box off or on.

Oh, one more thing, I plugged stereo RCA cords into the line inputs of the motorola box and set them on the back of my computer to ground the cable box. The noise then goes away as long as the cable box is off, but once you turn it back on, the noise comes right back.

Help!

 

[ElFenix]

probably the RF converter in the box

 

[FoBoT]

place a large feather pillow on top of it

or

get biggest @ss magnet you can find and set it on top of it

 

[waggy]

easy unplug it!

 

[jamesbond007]

Intelligent people we have here. :disgust:

ElFenix, this is my second digital box. I don't know what else to think or do! I cannot get a different brand box, either.

My satellite doesn't do this! Argh to digital cable.

 

[KahunaHube]

if you avhe a microphone hooked up to your sound card maybe you should try unhooking that

 

[LordMaul]

Kill the bugs inside!

 

[jamesbond007]

Originally posted by: KahunaHube
if you avhe a microphone hooked up to your sound card maybe you should try unhooking that

No, it is not the microphone...I can hook up my satellite and it works just fine. It's this craptastic excuse for a digital receiver.

 

[theNEOone]

i know what the problem is, cuz i had the same issue. i talked to my uncle and he said something to the effect of it being a matter of a difference in ground potential between the power coming in from the electrical outlet and the power coming in as your cable signal. i'm not sure if this is correct, but it's something along those lines. he gave me two options, either call your cable company and tell them that you're having issues with your stereo equipment, and that they need to come and ground the cable lines properly. option #2 was to buy a $150 dollar piece of equipment to filter out the "noise."

 

[jamesbond007]

Originally posted by: theNEOone
i know what the problem is, cuz i had the same issue. i talked to my uncle and he said something to the effect of it being a matter of a difference in ground potential between the power coming in from the electrical outlet and the power coming in as your cable signal. i'm not sure if this is correct, but it's something along those lines. he gave me two options, either call your cable company and tell them that you're having issues with your stereo equipment, and that they need to come and ground the cable lines properly. option #2 was to buy a $150 dollar piece of equipment to filter out the "noise."

Thanks! Just the answer I was looking for! I'll choose option #1 since it's $150 cheaper. LOL