TV Earc to soundbar not working, the soundbar only have Optical , so I am connecting TV HDMI to Optical soundbar with an HDM Bi-Direction Switch, it worked fine until I disconnected it to move the Tv to another place, so I tried an eARC/ARC to optical converter but it didn't work too. The TV Earc/Arc setting is the same why it doesn't work?. What I am missing?
Sorry to hear you're having trouble getting your setup working again - this is a really common frustration when moving equipment around.
The key thing to understand here is that eARC/ARC is a two-way communication protocol that runs over HDMI. When you use a converter box to turn it into an optical signal, the TV and the converter need to "handshake" properly. A few things to check:
First, power cycling in the right order matters a lot. With everything connected, turn off both the TV and the soundbar (and the converter box if it has power). Then power on the converter first, then the TV, then the soundbar. The TV needs to detect the HDMI device before it will send audio out properly.
Second, check your TV's audio output settings. Go into the sound or audio menu and make sure the audio output is set to the HDMI ARC port, and that any setting like "HDMI-CEC" or "Anynet+" (Samsung) or "Bravia Sync" (Sony) is enabled. Also look for a setting that says something like "digital audio output format" and try setting it to PCM rather than Dolby or DTS, since optical and many converter boxes handle PCM more reliably.
Third, the converter box itself may be the issue. Not all eARC-to-optical converters are equal. Budget ones in particular can struggle with the handshake. If the converter has a button to manually select the input or output format, try cycling through those options. It would also help to know the make and model of your TV and the converter you bought, as some TVs are more particular than others about what they will work with.
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