dvi to hdmi ?

Barr

Whats the diffrence if any between the above and hdmi to hdmi. I'm looking at a free to air box and all it has is dvi output.

Idleater

For video, the only difference between HDMI and DVI is the connector. If you haven't seen them the difference is DVI is square with screw in secure fasteners whereas HDMI is flat and unsecured a la USB.

For Audio, DVI does not carry any audio signals, HDMI allows a couple of channels (wires) for audio.

Many places sell dvi <> hdmi adapters, cables and gender changers to suit your equipment.

Barr

Sweet so if Im reading it correctly the picture is the same as a hdmi to hdmi connection. The only disadvantage it cannot carry the sound.

I have an optical output so I could use an optical cable instead

big_moe

Barr wrote: »

Whats the diffrence if any between the above and hdmi to hdmi. I'm looking at a free to air box and all it has is dvi output.

i dont suppose its a dreambox by any chance?

dvi is not usually meant to carry sound but i have a dreambox DM800 with a DVI - HDMI adapter and then a HDMI-HDMI cable, and the sound is carried through somehow.

if its not a dreambox, then you'll need a DVI-HDMI adapter and then run the audio separately, as already stated!

adam

The Ritz

Adam,

DVI can carry audio through its TMDS digital signal, that's why it's working for you with the DVI-HDMI adaptor. See Wiki, http://en.wikipedia.org/wiki/Digital_Visual_Interface.


Ritz.

viperirl

The same digital line in a HDMI/DVI can carry both the audio and/or video. Both are encrypted into the one digital stream and the encoding scheme is TMDS (more or less). Its just a wire at the end of the day, it doesnt care what the bits being transmitted mean.
It really depends on the electronics in the receiving end on whether both the video and/or audio can be extracted from this encrypted stream. I've seen DVI receivers actually being able to extract audio although I'm not sure if they appear in consumer devices.

Barr

big_moe wrote: »

i dont suppose its a dreambox by any chance?

dvi is not usually meant to carry sound but i have a dreambox DM800 with a DVI - HDMI adapter and then a HDMI-HDMI cable, and the sound is carried through somehow.

if its not a dreambox, then you'll need a DVI-HDMI adapter and then run the audio separately, as already stated!

adam

It’s exactly that I'm shopping for a DM800 HD at the moment. It comes with a dvi to hdmi cable and I was wondering how I would get sound.

Did yours come with an adapter or did you buy it separate?

big_moe

it comes with a DVI - HDMI cable that works fine but i wanted it longer so i got a DVI - hdmi adapter and then used my own HDMI cable

Barr

Did you ever try the dvi to hdmi cable without the adaptor on the dream box. I’m guessing there will be no sound without the adaptor?

big_moe

no the dvi to hdmi cable in the box brings picture & sound perfectly