[mythtv-users] Closed Captions: A reason to upgrade?

Jim Stichnoth stichnot at gmail.com
Sun Jun 5 14:24:16 UTC 2011


On Sun, Jun 5, 2011 at 7:04 AM, Alex Halovanic <halovanic at gmail.com> wrote:
> I doubt an upgrade will help with your closed caption issues.  I'm on 0.25
> and was on 0.24 a month ago.  I've completed three phases of the WOW digital
> transition in my area and am noticing the following:
>
> 2) All of the EAI-608 captions from digital stations are coming out with
> either gibberish or a stutter.  For example the words "UNPRECEDENTED
> DECLINE. PEOPLE ARE VERY" display as "UUNPNPRERECECEDEDENTNTEDED
> DEDECLCLININE.E. PEPEOPOPLELE A ARERE V VERERYY".  I haven't tried hooking
> the signal directly up to my TV to confirm that this isn't a problem in
> Myth.

The EIA-608 spec says that each pair of characters is transmitted
twice for error detection.  The myth code deals with this but
apparently not well enough (assuming a direct TV hookup displays
fine).  Can you create a ticket with a sample?

Jim


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