jeudi 19 février 2015

Dolby Digital vs Dolby Digital+

I have a Vizio soundbar on the way, and I'm trying to figure out what capabilities the Tivo has when outputting Dolby Digital.



I'll have the option to use the optical out for audio or HDMI passthrough with the soundbar, and I'd much prefer the HDMI passthrough route. I know that optical out can't pass through Dolby Digital+ (DD+), only vanilla Dolby Digital (DD), so I'm assuming that the Tivo has the capability to convert DD+ to DD when outputting via optical out. Otherwise, there would be no sound when playing Netflix and Vudu since they both use DD+.



I just recently learned that Vizio soundbars have issues with DD+, so I need to get DD to it, but will using HDMI pass through DD+ untouched, or does Tivo convert it to DD like I'm assuming it does when using optical out?



I'm planning on using an automatic HDMI switch to connect my BluRay, Apple TV, and Tivo to the HDMI input on the soundbar, then connect the HDMI output from the soundbar to the TV, that way I don't have to worry about changing inputs on the soundbar to get Dolby Digital/DTS audio from all three devices.



Does anyone have any first hand knowledge about what the Tivo Does to DD+ when Dolby Digital is selected in the audio settings?




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