3 Replies Latest reply: Apr 8, 2012 2:13 PM by tluikens RSS

    Audio hum from in feed- slingbox pro hd


      Anyone have any idea why my audio has a loud hum included in the feed.  it sounds like it's over-amplified, just a loud consistent sound.


      it's a new occurrence, just in time for football season, and happens when conected from different PCs.


      I'm almost always remote to the slingbox itself, though I've had someone re-seat the RCA connectors, but they're not overly savvy on tech products so i hasven't been able to do any real troubleshooting at the box itself.


      thanks in advance for any suggestions.

        • Re: Audio hum from in feed- slingbox pro hd
          chakkarinen Apprentice

          I assume your Slingbox is not sitting on top of any other electrical device, and its power supply is pluggd directly into a wall outlet, and not into any sort of power busbar.  A low hum is often related to a symptom AC electrical interference with an audio circuit, which can generate a 60 cycle per second low tonal hum.


          You might try connecting to your Slingbox via a web browser (IE or Firefox) at http://watch.sllingbox.com to see if that changes the hum, although I suspect that it is being generated at the physical source of your Slingbox and not through the software that you are using to view the streaming.


          Good luck in your troubleshooting.

          • Re: Audio hum from in feed- slingbox pro hd
            dbsguy Apprentice

            Are you using a cable box as the source feed? If so, make sure the cable box is set tto "fixed" audio output and not viable from within it's menu syastem options for sound.


            When going though the slingbox setup you have an option to change the volume per input as well. Doing one or both of the following should clear up or at least inmprove the "hum" issue your experiencing.


            Over amplification of a weak or low incomming audio signal gives you the symptoms your experiencing.

            • Re: Audio hum from in feed- slingbox pro hd



              This post may be too late to help the person who originally inquired about steady audio hum, but this information may assist somebody who later makes the mistake that I did when re-connecting component cables after I moved a properly working installation. I erroneously plugged the red video input wire into the red audio rca jack, and likewise the red audio wire into the Pr component input. The result was a washed out video that lacked red chroma and the loud, steady audio hum.  The audio problem was fixed when I unplugged the red video wire from the component audio and I had monaural audio with no hum. Switching the video and audio wires to their proper inputs restored normal video and audio.


              Tom Luikens