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Does ASUS GTX780-DC2oC-3gd5 output sound through HDMI?

Last response: in Graphics & Displays
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April 3, 2014 1:01:25 PM

I'm about to spring for a GTX780-DC2oC-3gd5 . Before I do, I want to know if the card outputs audio through the HDMI connector?

If so, will it output dolby 5.1 or 7.1 in games? And will it output 'all' system sound, and not just the running program? By that I mean, if I'm working a spreadsheet and playing itunes in the background, does that get sent?

Apologies if this is a blindly obvious question, but none of my poking around turns up anything that addresses directly. Asus website is completely mute on the issue. If NOT, I'll buy the card and a sound card with optical out on it.

The point is to get the Video on a plasma TV and the AUDIO through a home theater receiver.
April 3, 2014 1:04:46 PM

Yes, you will have whatever audio the game is compatible with 5.1 or 7.1 through the HDMI of an ASUS GTX780-DC2OC-3GD5 http://www.amazon.com/gp/product/B00DWV3NM6. The ASUS GTX 780 DCUII is a very solid card also, nice choice. :) 
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a b Ĉ ASUS
April 3, 2014 1:06:52 PM

1) HDMI sends sound, yes. All modern graphics cards are equipped with the right chips to run audio through HDMI.

2) Not positive if it'll output dolby surround - that's something that other people could answer. I use the optical out on my motherboard, which works just fine... but it sounds like you don't have one?

3) Yes, it will play all system sound - I don't know of anything that would work so that it only put out the audio of the selected program. :p 

You should be able to easily get video and audio by running HDMI through a receiver - I just don't know if HDMI supports surround. My guess is that since it's digital surround, not physical, you should be fine.

(Just as a side note, and something to keep in mind, if you're going to be doing competitive gaming at all, running the video through a receiver is going to add a bit of latency to your monitor - maybe not enough to bother you, but it's just something to think about.)
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a b Ĉ ASUS
April 3, 2014 1:13:39 PM

HDMI supports lossless 7.1 DTS-HD Master Audio, as well as all other available formats. Yes it will work (my old gt9600m could outpup 7.1 lossless DTS-HD). Whether or not you get Dolby digital depends on whether or not your game supports it. If a sound/video track is in a specific format, it will output that format to the home theater (Dolby Digital for example). Most games use 5.1 PCM, some few 7.1 PCM (which is not a decrease in quality at all).

TL;DR: HDMI sound beats optical in every aspect.

EDIT: As DarkSable said, it may add some latency, but it'll be so minimal you'll never notice.
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a b Ĉ ASUS
April 3, 2014 1:19:37 PM

jgjgjg said:
I'm about to spring for a GTX780-DC2oC-3gd5 . Before I do, I want to know if the card outputs audio through the HDMI connector?

If so, will it output dolby 5.1 or 7.1 in games? And will it output 'all' system sound, and not just the running program? By that I mean, if I'm working a spreadsheet and playing itunes in the background, does that get sent?

Apologies if this is a blindly obvious question, but none of my poking around turns up anything that addresses directly. Asus website is completely mute on the issue. If NOT, I'll buy the card and a sound card with optical out on it.

The point is to get the Video on a plasma TV and the AUDIO through a home theater receiver.


Oh by the way, if you use a plasma TV, beware of this: http://www.cnet.com/news/is-plasma-hdtv-burn-in-a-probl... Avoid it by setting your background to blank or by making it change every few minutes. A screen saver is also recommended.
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April 3, 2014 1:26:18 PM

Thanks everyone!!!!
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