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Connecting Video Card HDMI To Sound Card HDMI

S

Shizenhouzen

Junior Member
I`m currently building a new computer which has a pair of Asus EAH5870 v2

video cards and a Auzentech X-Fi HomeTheater HD 7.1 sound card .

I would like to link the Video Card HDMI To Sound Card HDMI .

The way the manual describes linking the two cards is by using the

supplied DVI to HDMI cable .

I would rather HDMI to HDMI .

I live in Australia and haven`t been able to locate anywhere that sells

VERY SHORT HDMI cables .

Has anybody heard of a HDMI Cable Kit that allows me to make my own ?.

Preferably a store in Australia .

Also if i were to use the DVI to HDMI cable would there be any quality

loss (even a small loss)

Thanks
 
Unless I remember incorrectly, the DVI to HDMI cable only carries video.

as far as making your own cable, alot of hardware or electronics store carry wall jacks and apapters that convert HDMI to Cat5

or just order a 1ft cable from Monoprice.com
 
Last edited:
BofRA said:
Unless I remember incorrectly, the DVI to HDMI cable only carries video.

as far as making your own cable, alot of hardware or electronics store carry wall jacks and apapters that convert HDMI to Cat5
Click to expand...

I thought this as well until the other night. I connected my PC to my TV using a DVI to HDMI cable, and to my shock sound was being passed to the TV. So apparently DVI can carry sound. 🙂
 
Thanks for your responses .

I`m unsure what the benefit is by the video going through the sound card

ie : Video Card > Sound Card > Reciever > Monitor

I assume the video signal passing through the reciever (Denon AVR 1911) to

the monitor will display the recievers Setup Menus etc .

I`m just wondering if i should just set it up as :

Video Card > Monitor
Sound Card > Reciever

Or : Video Card > Sound Card > Reciever > Monitor

Quality is my prioity whether it be Video or Audio .

Thanks again .

The Video Card has it`s own audio drivers (optional to install) when installing

the video drivers .
 
If you connect the optical out on your sound car (I am assuming you have one) than the receiver will be doing the processing. This will likely be the best quality.
 
dpodblood said:
If you connect the optical out on your sound car (I am assuming you have one) than the receiver will be doing the processing. This will likely be the best quality.
Click to expand...

HDMI out would actually be slightly better because it has the bandwidth for Blu-ray audio codecs as well as 7.1 LPCM.

OP, to answer your question, DVI and HDMI carry the exact same video signal. It's also all digital, so there is no sort of "conversion loss". All the sound card would do is pass the video stream through.
 
mfenn got it right - the electrical signals for VIDEO on a DVI output are exactly the same as those on an HDMI output - there is no "conversion".

dpodbllod raised an interesting possible point of confusion. HDMI does carry audio signals in its lines. The original standard for DVI does NOT have any audio signals in the output connector or cables. BUT the ATI video card designs (now a division of AMD) added audio to the DVI connector on certain unused pins, so on most cards based on their chips audio does exist on the DVI output connector. However, since that's non-standard, no DVI cable carries those signals in its lines. Now, if you insert an adapter into the DVI output connector to convert it into an HDMI output connector, and IF that adapter connects the audio signal lines through, then you CAN get audio from a DVI output (from an ATI-based video card) on an HDMI cable to your display unit.

Note that not all adapters do this! We have a media computer we built using an XFX video card based on an ATI chipset, and originally used its composite video output to an older TV, with stereo audio from the mobo audio outputs to the TV. Then we got a new flat-screen with 1080p capability and HDMI as well as DVI, composite video and audio inputs (plus a tuner, of course). At first we just continued to use the composite video etc. signals. Then we picked up an HDMI cable and an adapter for the DVI output from the video card, but got no audio that way - had to keep on using audio from the mobo outputs. I checked with XFX to be sure the card does put out audio on the DVI connector and yes, it does, and they sent me the correct kind of adapter. It works perfectly! With the right adapter on the DVI output and an HDMI cable, we have 1080p picture resolution and 2-channel stereo audio at the flat-screen. And wow, is that picture MUCH better than a TV signal from a strong local analog channel!
 
Thanks again for your replies .

There are so many different variations and obstacles when building a computer

nowdays ---- I love it !!!
 
Paperdoc said:
mfenn got it right - the electrical signals for VIDEO on a DVI output are exactly the same as those on an HDMI output - there is no "conversion".

dpodbllod raised an interesting possible point of confusion. HDMI does carry audio signals in its lines. The original standard for DVI does NOT have any audio signals in the output connector or cables. BUT the ATI video card designs (now a division of AMD) added audio to the DVI connector on certain unused pins, so on most cards based on their chips audio does exist on the DVI output connector. However, since that's non-standard, no DVI cable carries those signals in its lines. Now, if you insert an adapter into the DVI output connector to convert it into an HDMI output connector, and IF that adapter connects the audio signal lines through, then you CAN get audio from a DVI output (from an ATI-based video card) on an HDMI cable to your display unit.

Note that not all adapters do this! We have a media computer we built using an XFX video card based on an ATI chipset, and originally used its composite video output to an older TV, with stereo audio from the mobo audio outputs to the TV. Then we got a new flat-screen with 1080p capability and HDMI as well as DVI, composite video and audio inputs (plus a tuner, of course). At first we just continued to use the composite video etc. signals. Then we picked up an HDMI cable and an adapter for the DVI output from the video card, but got no audio that way - had to keep on using audio from the mobo outputs. I checked with XFX to be sure the card does put out audio on the DVI connector and yes, it does, and they sent me the correct kind of adapter. It works perfectly! With the right adapter on the DVI output and an HDMI cable, we have 1080p picture resolution and 2-channel stereo audio at the flat-screen. And wow, is that picture MUCH better than a TV signal from a strong local analog channel!
Click to expand...

It works with new Nvidia cards as well. I was connected with my GTX 570 the other night.
 
Posting the same thread on two forums is a no-no and an infraction. This one has 10 responses and the other 3. Will recommend locking the other.
 
My apologies for posting my thread on two forums .

This is the first time i have used a forum .

I originally posted in the `Computer Help` forum then later after reading other

forums i realized it should have been placed in the`General Hardware` forum .

And no doubt this is not where it should be .

" Sorry about that chief "
 
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