HD48xx video + audio output?

[Mech0z]

Can I connect my Auzentech X-FI Prelude to a 4850/4870 and run it to my av reciever through a single HDMI and get both video and sound through that cable or does it not work with none onboard soundcards?

 

[Elcs]

Bump for Mech0z.

I am rather interested in the HDMI audio capabilities of the HD4870... I have just got mine in and was quite surprised to find no HDMI ports on the board despite a touted 7.1 sound capability.

Is anyone in a position to help Mech0z and explain things to me a little more? If an article can explain it, please post a link.

Thanks

 

[Rhino2]

Originally posted by: Elcs
Bump for Mech0z.

I am rather interested in the HDMI audio capabilities of the HD4870... I have just got mine in and was quite surprised to find no HDMI ports on the board despite a touted 7.1 sound capability.

Is anyone in a position to help Mech0z and explain things to me a little more? If an article can explain it, please post a link.

Thanks

Surprised? Did you not look at any pictures of the card before you bought it? Anyway, the card should have come with a DVI-HDMI converter, the 7.1 sound will still be transmitted over the HDMI through the converter. As far as Mech0z's question I can't really help because I do not know 100% one way or the other if that will work or not in that specific situation, someone with some actual experience with that will have to comment.

 

[Elcs]

Originally posted by: Rhino2

Originally posted by: Elcs
Bump for Mech0z.

I am rather interested in the HDMI audio capabilities of the HD4870... I have just got mine in and was quite surprised to find no HDMI ports on the board despite a touted 7.1 sound capability.

Is anyone in a position to help Mech0z and explain things to me a little more? If an article can explain it, please post a link.

Thanks

The card should have come with a DVI-HDMI converter, the 7.1 sound will still be transmitted over the HDMI. As far as Mech0z's question I can't really help because I do not know 100% one way or the other if that will work or not in that specific situation, someone with some actual experience with that will have to comment.

I always thought that DVI did not carry audio, hence my confusion.

What produces the sound? Will it draw from my PCI soundcard or is there some form of sound module on the HD4870?

 

[chizow]

Originally posted by: Elcs

Originally posted by: Rhino2

Originally posted by: Elcs
Bump for Mech0z.

I am rather interested in the HDMI audio capabilities of the HD4870... I have just got mine in and was quite surprised to find no HDMI ports on the board despite a touted 7.1 sound capability.

Is anyone in a position to help Mech0z and explain things to me a little more? If an article can explain it, please post a link.

Thanks

The card should have come with a DVI-HDMI converter, the 7.1 sound will still be transmitted over the HDMI. As far as Mech0z's question I can't really help because I do not know 100% one way or the other if that will work or not in that specific situation, someone with some actual experience with that will have to comment.

I always thought that DVI did not carry audio, hence my confusion.

What produces the sound? Will it draw from my PCI soundcard or is there some form of sound module on the HD4870?

ATI 4800 have their own onboard audio codec that functions as its own audio device in Windows, so unless its capable of routing and passing s/pdif internally over the PCI/PCIE bus you most likely cannot pass sound from your X-Fi Prelude over HDMI with ATI.

The NV 9 and GTX series do pass sound this way but externally via s/pdif passthrough cable from your sound card/onboard to an input on the card which is then passed through the DVI to HDMI converter.

Overall the ATI solution is better for movies since it can do 8ch LPCM over HDMI but still lacks the ability to bitstream uncompressed formats. The NV solution just saves you an external cable and may solve some HDMI hand-shake issues. Realistically, both are short of a real solution to HDMI audio which will most likely be standardized on add-in sound cards in the near future (Auzentech's Prelude 1.3 and Asus' Xonar 1.3) with onboard standardizing it in a few years.

 

[Caveman]

Thanks Chizow for the informed reply.