[mythtv-users] Audio over HDMI: my story
jyavenard at gmail.com
Wed May 6 04:44:37 UTC 2009
Sent from my iPhone
On 06/05/2009, at 11:15 AM, Ronald Frazier <ron at ronfrazier.net> wrote:
>> My understanding is that the audio is inserted into the same data
>> stream as
>> the video so the cable/ adapter cannot make any difference.
> I'm aware of that, but it was my understanding that DVI ports wouldn
> not transmit audio. So I took a quick look at wikipedia and:
> "Unlike HDMI, DVI usually carries no audio data. However, it is
> possible for a DVI port to transmit audio data to a HDMI connection if
> a DVI to HDMI cable is used"
> So I stand corrected. I wonder when that sort of thing became
Sound is carried within the TMDS signal. So video and sound are using
the same travel path.
So being able to use a DVI cable in place of a hdmi cable has always
being possible. As often DVI cable are cheaper and better build than
many hdmi cables, it actually make sense to use a DVI cable instead.
Funny that you never heard of people arguing wether a DVI cable could
carry a 1920*1200 signal, yet many question if the quality of a hdmi
cable is enough for a 1920*1080i
Most new ATI video card only have a DVI output but do sound as well.
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