[mythtv-users] Humming Noise coming from LCD tv

[Eric Sharkey]

On Mon, Mar 31, 2014 at 10:55 PM, Philip Isaacs <showcasefloyd at gmail.com> wrote:
> Okay, so this is slightly off subject, but I've hooked up my Myth PC to my
> LCD TV via a DVI to HDMI adapter. I then ran a single audio cable from the
> sound card on the PC into the audio port in the back of the TV.  The picture
> looks great but there's a annoying hum coming from the TV now. It's pretty
> loud too. I tried switching out the cables but I'm having no luck. Any
> suggestions on how to fix this? I know it's not exactly Myth related but I'm
> guessing maybe others have run into this issue.

You've touched off a small firestorm.

Noise-free analog audio can be difficult to achieve.  This is the sort
of thing that digital audio was invented to solve.  The simplest
solution is to switch to a digital audio connection, either using hdmi
or some form of spdif.

Eric