[mythtv-users] dual (bilingual) sound
Michael T. Dean
mtdean at thirdcontact.com
Wed Nov 30 11:38:39 EST 2005
Petr Stehlik wrote:
>Dewey Smolka píše v St 30. 11. 2005 v 09:48 -0500:
>
>
>>>works correctly so I assume that one of the stereo channels is set as
>>>default language channel when the bilingual transmission is detected.
>>>Now it's up to me to look into xawtv source code to find out which
>>>channel it is - either left or right, there is no more possibilities.
>>>
>>>
>>When I lived in Slovakia, there were duo TVs and non-duo TVs.
>>
>>
>I doubt anyone serious would sell TV on the market that wouldn't know
>the bilingual stuff. People would return such sets back to shop.
>
>
This is making me think that there may be some information transmitted
in the VBI about the audio. If so, it's a much harder problem to deal
with than just setting certain recording schedules to play back the left
or right or both channels (i.e. always play only the left channel of the
Simpsons and the right channel of the local news).
Unfortunately, IIRC, there's still no support for VBI in Myth with ivtv
cards. Frame grabber cards can do captions/teletext, but I don't know
if they do anything else with VBI. Therefore, if it is transmitted this
way, it's unlikely that we'll get this automatic language support soon
because it's reliant on a major feature addition.
So, does your XMLTV data contain language elements for programs
broadcast in multiple languages? If so, it may be possible to include
this information in the database so that we can short-circuit the
autodetection process if the grabber provides language information (and,
if the grabber gets the info wrong, you can always switch channels with
the mute button).
Mike
More information about the mythtv-users
mailing list