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Brad Fitzpatrick

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MPEG artificats in analog cable!? [Oct. 11th, 2005|08:17 pm]
Brad Fitzpatrick
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Why the hell do I see MPEG artifacts during commercials on analog cable?

Is the new way to distribute commercials to studios via crappy MPEG files?

Lame. Not that I care about commercial quality much, but I hate this "digital" world being used to lower costs more than increasing quality. Kinda depressing.

[User Picture]From: edm
2005-10-12 05:06 am (UTC)
_Have_ to look at it? I generally assume all adverts will make me unhappy, and try to avoid looking at them even without artifacts :-)

Here (New Zealand) pretty much all the stations (which are all analogue, all the time) have used MPEG or similar as part of their transmission process (long haul links down to the local repeaters, I think), and you see MPEG blocks/artifacts from time to time in programs when the signal to the repeater breaks up. I assume they do that with commercials too.

If you were seeing an otherwise normal picture, just with compression artifacts, then chances are the advertiser supplied a too-heavily-compressed MPEG file for screening. I used to see this effect in some adverts in the "digital" movie theatres; and it really sucked having what looked like a 320x240 heavily compressed MPEG image shown on a large-movie-theatre sized screen. I tried not to watch that too.

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