You made the right first step by updating your TV’s software since smart TV apps typically get regular upgrades. That’s why you’re getting 5.1 audio from Netflix with the Sony, while other apps such as HBO Now and Hulu, both of which do actually support Dolby Digital Plus, are arriving in DD 2.0 format. And only in select cases will audio from the TV’s streaming apps be converted for regular Dolby Digital 5.1 output over the set’s optical digital audio output - it all depends on the app and the make of the TV. Optical digital connections do not support DD Plus. (ARC, or Audio Return Channel, first saw life as an HDMI feature starting with version 1.4, which was released in 2009.) Ken Ashlock, Colorado Springs, COĪ As you’ve probably discovered while poking around the internet, an issue with pairing older AV receivers (the Denon AVR-4306 dates back to 2005) with a new smart TV like your Sony XBR-55X850C is that the higher-quality Dolby Digital Plus format offered by some streaming apps requires an HDMI ARC connection from the TV. Any advice or suggestions? I don’t want to upgrade the receiver at present. My local AV shop suggested using another streaming device or upgrading to a high-quality optical cable. I performed a very recent software upgrade on the However, I understand that Netflix also uses DD Plus. After much internet research, I suspect that it has something to do with either the Denon’s lack of HDMI ARC capability, or the use of Dolby Digital Plus by the streaming services. My problem is that I only get Dolby Digital 5.1 sound from the TV’s Netflix app no other app (HBO Now/Go, Sony Crackle, Hulu, or Disney+) provides DD 5.1.
The set’s optical digital audio output is connected to an older Denon AVR-4306 receiver.
Q I’m using the built-in apps on my Sony XBR-55X850C TV for video streaming.
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