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Posted by DerbyDad03 on August 20, 2007, 2:39 pm
> I mostly notice the delay effect when our family room TV, fed by a HD box,
> is playing the same channel as my computer in the next room, which does not
> have an HD box. It is like an echo, the delay is a fraction of a second.
>
> Also be aware that Scientific Atlanta cable boxes are some of the cheapest
> boxes available. This is what our cable company supplies, they are full of
> bugs and certain models have even more problems and frequently fail.
>
>
>
>
>
> > DerbyDad03 wrote:
> >> Background: In an attempt to solve a problem I've been having with my
> >> standard cable TV converter, TWC sent me an HD converter - Scientific
> >> Atlanta Explorer 4250 HDC. They think my problems stemmed from a
> >> memory problem in their standard converter. There's 8Mb in a standard
> >> box, 16Mb in an HD box. I do not have HD service or an HDTV.
>
> >> Curent Issue: The first thing I noticed is that when I tune to any
> >> station, the video is frozen for a split second and then movement
> >> begins. It lasts just long enough to be noticable. This did not occur
> >> with my standard box. Due to my ongoing problems, I've been given a
> >> telephone number that takes me directly into Level 3 support. I called
> >> the rep/tech and asked if this was normal for an HD converter. He said
> >> it was, as long as it was for a split second and did not increase.
>
> >> Can anyone verify that this is normal for an HD converter?
>
> >> Thanks!
>
> > It's probably just a processing delay in the digital to
> > analog conversion. Many types of equipment that process
> > D/A or A/D signals can have a noticeable delay in output.
> > A potable "no skip" CD player is a good example. It will
> > buffer the data from the laser disk reader into memory
> > so it can reread the disk and correct for errors before
> > it can output a smooth analog signal. If you have ever
> > noticed digital artifacts on your TV screen, the odd stops
> > and strange rectangles breaking up the picture, you're
> > seeing what the processor is trying to prevent. You also
> > have to consider delay caused by decoding scrambled signals.
>
> > Another thing to consider is the quality of your incoming
> > signal. A low signal, bad or noisy cable connection can
> > also cause problems. Has a cable company tech ever come to
> > your home and checked the signal level and quality?
>
> > [8~{} Uncle Monster- Hide quoted text -
>
> - Show quoted text -
- It is like an echo, the delay is a fraction of a second.
That is not the "delay" I am asking about. The one you are speaking of
is the normal delay between sets attached directly to the cable
vs.those going through a settop box.
I am talking about an actual freezeing of the video as soon as a
channel appears on the TV. Essentially a still picture is displayed
first and then very quickly becomes active.
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