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asenturk84
Contributor I
August 1, 2021

Would HDMI Arc to Optical converter work?

Hi, 

My TV does not support HDMI to Optical Dolby passthrough. If I buy a product like the one in the link below, connect it to my TV’s HDMI ARC port, use the optical cable between this and my PlayBar’s optical in, would my PlayBar + 2 Play One rears be able to receive Dolby sound:


https://www.amazon.com/avedio-links-Extractor-Splitter-Converter/dp/B07H94D77V/ref=sr_1_2_sspa?dchild=1&keywords=hdmi+arc+to+optical&qid=1627813739&sr=8-2-spons&psc=1&smid=APNU4RDT15RHI&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyR0lYTkRUWlBPRVcwJmVuY3J5cHRlZElkPUEwNDk5NTU4M0lZM1U0UVU5T1pVWCZlbmNyeXB0ZWRBZElkPUEwMzMwODkwM08yWjg2WFJaMzBOOCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

 

Thank you!

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asenturk84Author
Contributor I
August 11, 2021

Airgetlam: Thank you so much for digging into this.

I use a 3rd gen Apple TV right now and it outputs Dolby Digital 5.1 (it says on the manual: Dolby Digital 5.1 surround sound pass-through).

 

As for the ARC capability, can you please check page: 41. There are some technical explanations about sound configuration and ARC capability but I lost myself there a bit.

Airgetlam
Airgetlam
August 11, 2021

The only reference to ‘ARC’ I see on that page is in reference to the SPDIF information. This is odd, because ARC has nothing to do with SPDIF at all. SPDIF is an optical output, ARC is an HDMI (electrical) output. 

My guess is that the TV has no ARC capability, which would be indicated by one of the HDMI ports being labeled, I see nothing in the manual that shows any of them as such. However, as previously indicated, it looks like when a Dolby Digital signal is sent in via HDMI, and the audio settings for the TV are properly set up, it should pass that same Dolby Digital signal out via the optical connection. 

Bruce
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