Sound through HDMI from PC > TV

[billjimbob]

I have a 9800gx2. From what I've read, I can receive audio through the card to my HDTV, which is connected via HDMI. Apparently, my card came with a 2-pin SPDIF cable that goes from my video card to a sound card (or onboard sound in my case, a 780i). However, I lost the cable (doh). I'm ok with just buying another cable, but I'm having trouble finding exactly what cable it is. This is the only image I could find of it:

Then I found this cable at Amazon:
http://www.amazon.com/2-Pin-Internal-Digital-Audio-Cable/dp/B000I9903G

Is this the right cable I need?

 

[leon2006]

Call XFX Tech support to send you replacement cable.

I pass audio on my GTX-280 through HDMI. I called BFG and they sent me the cable.

This is the safest way to do it. You get exactly the cable that you need and its free.

The downside is a little bit of waiting ~ 3 days.

Good Luck

 

[Mousemonkey]

I have a 9800gx2. From what I've read, I can receive audio through the card to my HDTV, which is connected via HDMI. Apparently, my card came with a 2-pin SPDIF cable that goes from my video card to a sound card (or onboard sound in my case, a 780i). However, I lost the cable (doh). I'm ok with just buying another cable, but I'm having trouble finding exactly what cable it is. This is the only image I could find of it:
http://www.legitreviews.com/images/reviews/679/geforce_9800gx2_power2.jpg

Then I found this cable at Amazon:
http://www.amazon.com/2-Pin-Internal-Digital-Audio-Cable/dp/B000I9903G

Is this the right cable I need?

That'll do the job as well.

 

[Guest]

Hi Leon,

I have a GTX 280 too. I am trying to get true 7.1 sound. Are you talking about the dvi to hdmi adapter or another cable? I need the HDMI to get 7.1 because SPDIF is only 5.1. Will the sound card decode the sound or the video card? I will have to plug the Hdmi to an External Audio Amplifier, pioneer VSX-919AH-K to get sound from the home theatre system. Will this work?

I hope its the same subject, audio out threw HDMI.

Thanks for your time

 

[Guest]

Can the HDMI port on the GTX 280 pass 7.1 Surround Sound? I am confused because SPDIF only do 5.1

 

[gamerk316]

No. As NVIDIA cards rely on a SPDIF header, the best you can possibly get is 5.1, and then, only when the source is encoded in Dolby Digital or DTS formats (which more or less requires a sound card to encode the source audio). For NVIDIA, the purpose is to transmit 2.0 sound to a HDTV, as their method really isn't meant for 7.1 or even 5.1...

By contrast, ATI cards have their own onboard sound chip, so you can get 7.1 using HDMI. But you are limited to the quality of that particular chip, as you can not hook up to a seperate sound unit.

 

[leon2006]

Elie3000

Yes..The connection is DVI/HDMI connection

I use a Creative XFI Card SPDIF Port. I can only get 5.1 from this port when i port this to my Receiver.



Thanks

Noel

 

[leon2006]

HD-Video and 7.1 Audio is restricted HDMI-Port due to HDCP requirement. I may be wrong but thats what i understand.

 

[gamerk316]

Not really, its just that HDCP support is optional for DVI, instead of a requirement for HDMI. As such, DVI often lacks HDCP support.

For NVIDIA cards, you are relying on SPDIF to connect to the source, so thats what you are limited to.

SPDIF was designed to carry CD-Audio (2 channel, 16-bit, 44100 KHz) to/from Home Theatre systems; its only because Dolby Digitial/DTS signals are compressed that 5.1 can be trasmitted. The only ways to get 7.1 is via analog or HDMI.

 

[Guest]

Thanks, so what I understand is that to get True 7.1 source going into an Audio amplifier,we will need an HDMI sound card like the Asus Auzen X-Fi HomeTheater 7.1 HDMI sound card.

Another workaround would be streaming from a PC to the PS3 threw a router and then connect the ps3 to the amplifier with HDMI.

 

[gamerk316]

Technically, to get 7.1, you can do one of 3 things:

1: 7.1 analog out
2: HDMI out form motherboard (if supported by mobo)
3: ASUS Xonar HDAV 1.3 or Auzentech Hometheatre 7.1 (not yet released)