New user here, brand new owner of an ONKYO TX-NR656 AV Receiver.
I was experiencing a weird issue when trying to pass through ARC any source with Dolby Digital Plus content. This issue affected sources such as:
- TDT Channels with DD+2.0 audio tracks. Other channels with MPEG sound worked fine.
- NetFlix and Amazon Apps from the LG App store when selecting 5.1 sources or Dolby Atmos.
The issue was that I got not sound at all, with the exception of some sounds for 2 or 3 tenths of a second and then silence again. The Info on the Receiver would say unknown source format in that instances.
I played with every option both in the receiver and the tv until I finally figured out what was causing the issue.
When I turn on the lights in my living room the sound will break. If I turn of the lights, I get back the sound instantly.
It's worth noting that the issue didn't affected at all the image quality or any other kind of sound source (PCM and Dolby Digital Standard sources like youtube worked fine under all circumstances).
The lights in my living room are regulable Halogen MR16 12V lights. I have 2 separated sets of 6 lights and both of them cause the issue. Even more. There are 2 rooms with the same lights that don't affect the receiver but a third (and farther away) room that also does affect the receiver.
As I said, weirdest issue ever.
I have video evidence of the issue, but I won't be able to share the link until my next (5th) post.
I still have to try some things to try and solve the issue for good (not having to turn off the lights to be able to listen to DD+ audio) such as:
- Changing the HDMI cable for a better quality Hispeed one.
- Connecting the receiver to a UPS Power Unit to see if that isolates the noise produced by the lights to the power grid of the house.
I'll update when I try those things.
Thanks for your time.