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Does native hdmi carry audio?

Forum Graphic & Displays : TV/Video Cards - Does native hdmi carry audio?

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splackavellie182003   10-06-2009 at 08:25:31 PM

I was wanting to get a video card for my computer that has hdmi to hook up to my 720p tv. And was trying to find out what I need to look for in a video card to carry both video and audio

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skolpo   10-06-2009 at 08:32:13 PM
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Look for cards that have an S/PDIF input. These cards will come with the loop cable that is necessary. Also, your motherboard has to have an S/PDIF connector also.


Message edited by skolpo on 10-06-2009 at 08:33:39 PM
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Zirbmonkey   10-06-2009 at 09:42:05 PM
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splackavellie182003 wrote :

I was wanting to get a video card for my computer that has hdmi to hook up to my 720p tv. And was trying to find out what I need to look for in a video card to carry both video and audio



My HTPC has an ATI 4670 with HDMI to my 720p TV. And yes, it carries the audio through just fine. I'm very happy with the card, for the limited job it does. No gaming, jsut movies, hulu, websurfing, and google maps.

Any of the ATI cards that specifically say "HDMI" on the box will support audio through the HDMI cable. I don't know about the Nvidia cards, but I don't believe they pipe audio through. I tried searching for HDMI audio drivers and never found any.

------------------------------ <Gaming PC> | Cosmos 1000 Case | Zalman 850W PSU | EVGA X58 3XSLI | i7 920 OCed to 3.3GHz Stock Voltage/Fan | 6GB OCZ Platinum 1600 | Sapphire HD5870 | 2x Samsung 2343 (2048 x 1152) + 1x Samsung 2333HD (1080p) | 4x 1TB HDs in RAID 5 | Windows 7 Build 7100
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Bronze Graphics badge mousemonkey   10-06-2009 at 09:50:13 PM
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Some Nv cards do have video and audio over HDMI.

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strangestranger   10-06-2009 at 11:00:29 PM
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ATI cards will do it through dvi as well with the supplied adapter.

Don't know what skolpo is on about.

------------------------------ I'm a git, deal with it.

Antec 1200,PC Power & Cooling 750,Gigabyte DS4-x48,Intel Q9550@3.4 W/Xigmatek S1283,8GB OCZ DDR2 800,ATI 4870X2,X-FI>CA 640C amp>Tannoy R300/Senn 595's
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skolpo   10-06-2009 at 11:24:36 PM
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o.O thought I was in the nvid forums.

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Zirbmonkey   10-07-2009 at 04:10:48 AM
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So what I've been able to find is that the HDMI through Nvidia supports audio through the card. You just need a sound card that pipes S/PDIF to it. ATI actually has sound drivers in the video card itself.

So if you have a high quality Sound Blaster Platinum, you'd want to go with Nvidia to pipe the sound through the HDMI channel. But if just have onboard audio, the ATI sound drivers support 7.1 audio and it'd be a step up to just have ATI sound.

------------------------------ <Gaming PC> | Cosmos 1000 Case | Zalman 850W PSU | EVGA X58 3XSLI | i7 920 OCed to 3.3GHz Stock Voltage/Fan | 6GB OCZ Platinum 1600 | Sapphire HD5870 | 2x Samsung 2343 (2048 x 1152) + 1x Samsung 2333HD (1080p) | 4x 1TB HDs in RAID 5 | Windows 7 Build 7100
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strangestranger   10-07-2009 at 01:09:40 PM
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No.

That post made no sense.

------------------------------ I'm a git, deal with it.

Antec 1200,PC Power & Cooling 750,Gigabyte DS4-x48,Intel Q9550@3.4 W/Xigmatek S1283,8GB OCZ DDR2 800,ATI 4870X2,X-FI>CA 640C amp>Tannoy R300/Senn 595's
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gamerk316   10-07-2009 at 02:22:25 PM
- 0 +

NVIDIA: You have to connect the card to an audio source (sound card/motherboard) using a 2-pin SPDIF header. You get all sound formats the SPDIF can carry (2.0 PCM, Dolby Digital, DTS)

ATI: A sound chip is installed on the card. You get all uncompressed sound formats (2.0, 5.1, and 7.1 PCM)

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