[linux-dvb] Re: New Nova-T errors

[Gregor Lawatscheck <gpel@mpex.net>]

At 10:03 14/08/2003, you wrote:
> > It seems you simply have a weak signal..
>
> > what you should really be looking into is improving the quality of the
> > signal you feed into the card...!
>
> OK, thanks to Jon's helpful pointers I can now run tzap!  Can someone please
> confirm that these ber numbers are way too high for decent reception.
> However, there is one slight gremlin here, BBC ONE which has the lower error
> rate won't play at all nicely through mplayer, however, ITV 1 which has
> substantially higher error rates plays "OK".  (OK means that the picture and
> sound both look fine, but to my ear there are slight hiccups in the sound
> which might be because of unfixed errors in the audio stream?)
>
> So this one plays really poorly
>
> mm dvbstream # tzap -r "BBC ONE"
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> tuning to 505833330 Hz
> status 01 | signal c5c5 | snr a1a1 | ber 0001fffe | unc 00000000 |

From my experience in the UK block error rates below 1000 are sufficient 
to get a completely stable stream. Data might get lost somewhere else on 
the board under linux? IRQ? VIA chipset? Something along those lines maybe?

Although it works in Windows, I'd try this on another machine just 
determine whether or not it's the driver / signal or something else on the 
system.



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