[mythtv-users] HDMI and audio

Christopher Kerr mythtv at theseekerr.com
Wed Nov 18 23:50:20 UTC 2009

On Thu, Nov 19, 2009 at 10:32 AM, Christopher Kerr <chris at theseekerr.com>wrote:

> On Thu, Nov 19, 2009 at 10:27 AM, Mark Greenwood <fatgerman at ntlworld.com>wrote:
>> On Wednesday 18 Nov 2009 21:56:28 Patrick Doyle wrote:
>> > Basically, I don't know what I don't know here.  So I'm going to go
>> > off on a digital-audio-over-hdmi hunt (in fact, I've already started
>> > it), and I would sure appreciate any tips or pointers for where to go
>> > to figure this out, short of buying a mobo that won't work w/ my TV.
>> The HDMI specification is not just a video interface, it's a Multimedia
>> interface. This includes Audio. Every HDMI chipset ought then to be capable
>> of video and audio. So if you buy an external video card, ALSA should find
>> it and it'll show up as a separate audio card - you shouldn't end up using
>> the onboard audio at all. You may have to fiddle with .asoundrc files but
>> I'd be very surprised if it didn't work.
>> Mark
It's also possible to buy a device which take a DVI/HDMI video input, and a
coaxial or optical SPDIF input, and creates an HDMI with digital audio
output. It all happens in the digital domain, so it -should- be flawless.
 - Chris

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