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Topic # 30827 22-Feb-2009 20:40
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I've noticed that I have a pretty bad low end hum going on with my TV on Windows 7. I have a Saturn STB feeding my HTPC through SVideo and connected to a Hauppauge PVR150. The TV is playing really bassy, and when you change channels it sounds almost like the speaker cables do when they touch metal.

This same setup worked perfectly in Vista. I've also changed the audio Left/Right RCAs from the STB to the PVR150 but the same thing happens.

I don't have any issues with sound in DVD/Videos/Music - Only Live and Recorded TV.

I have tried tinkering with any sound settings I can find in Windows and also in Media Center - nothing makes a difference.

The STB is not turned up too loud which is what I initially thought, it's only on half volume - and i still get the hum even if I have Windows 7 turned way down.

I've even turned my sub down to 0 manually and I still get the humming.

Any help on this would be greatly appreciated, if not for my sake then for the guy who lives beneath me :)

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  Reply # 197399 23-Feb-2009 06:35
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Try turning the STB up. Windows may be trying to do some auto leveling. I have mine turned right up and it is fine. This is under vista not W7 though.







Media centre PC - Case Silverstone LC16M with 2 X 80mm AcoustiFan DustPROOF, MOBO Gigabyte MA785GT-UD3H, CPU AMD X2 240 under volted, RAM 4 Gig DDR3 1033, HDD 120Gig System/512Gig data, Tuners 2 X Hauppauge HVR-3000, 1 X HVR-2200, Video Palit GT 220, Sound Realtek 886A HD (onboard), Optical LiteOn DH-401S Blue-ray using TotalMedia Theatre Power Corsair VX Series, 450W ATX PSU OS Windows 7 x64



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  Reply # 197404 23-Feb-2009 12:06
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I've tried with STB up full, down low, and inbetween :) No change.  Even wih volume turned right down on MC, if i change channel I get the hum

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