[vdr] AW: Re: AW: Re: AC3 over DVB Nexus-s Card

[Jörg Knitter <joerg.knitter@gmx.de>]

Don´t understand why this should work better. Can anyone give my more
detailed information? I am writing an article about DVB cards and really
would like to know if people still need a SPDIF-soundcard or if the
Linux-solution works/will work - sooner or later, for 'normal' users a
windows port might then be available in applications like WinDVBLive,
WatchTVPro etc. ...

Joerg

-----Ursprüngliche Nachricht-----
Von: pram2000@web.de [mailto:pram2000@web.de] 
Gesendet: Freitag, 5. April 2002 12:11
An: vdr@linuxtv.org
Betreff: [vdr] Re: AW: Re: AC3 over DVB Nexus-s Card

> Hi, I am a newby and follow this AC3 over DVB Nexus topic with higher
> interest. But there is one basic thing I don´t understand: It is a
known
> bug of the DVBs, that the used TI-chip is unable to output a 1:1
signal.
> One bit can not be output correctly so that AC3 output is said to be
> technically impossible. Some AC3-decoders seem to have a better error
> correction so that they still are able to decode AC3, but this is
> different from case to case. This information is from Hauppauge.
> So how does the Linux-AC3 output work? Is there a certain work-around
> for this bug or do the developers simply don´t know about this
hardware
> limitation?

http://www.atsc.org/standards/a_52.pdf
AFAIK it works like described in annex B

Roland