[linux-dvb] Re: [vdr] Re: dxr3/vdr problem

[Holger Waechtler <holger@convergence.de>]

Malcolm Caldwell wrote:
> > > It understand it is related
> > > to BER but how?  
> > Block Errors - or better Uncorrected Block Error Count - is the number 
> > of MPEG packets that have not been corrected by the forward error 
> > correction unit. These get visible as real artifacts in video or audio.
>
> If I understand correctly my hardware (budget card) can't report the
> Block errors at the same time as the bit error rate.  Does this mean
> that the packets in the TS are not maked with the
> transport_error_indicator bit as mentioned by Johannas?  Or is this bit
> worked out some other way?  (I will try to look at the driver later)
no, the transport_error_indicator bit should always get set for 
uncorrectable packets.


> > In some setups the RF emissions or instable power supplies of your PC 
> > might cause problems,
>
> Do these power supply problems appear any other way?  I would I know if
> this was the problem?  Are budget cards susceptible to this kind of
> problem? The reason I ask is it would appear that the card can't power
> my lnb - it works when I connect through my stand alone receiver's
> loop-back connector - but if I turn off the receiver or connect directly
> I have problems.
Try to borrow + install a stronger power supply and see if this helps...

Holger



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