dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
15
share rss forum feed
« How long until....Netflix »
This is a sub-selection from But how lossy?

cramer
Premium
join:2007-04-10
Raleigh, NC
kudos:9
reply to MovieLover76

Re: But how lossy?

ATSC HDTV is a set standard

In so much as it's a 19Mbps stream, yes. However, the broadcaster can do what ever they wish in that space... one high rate HD stream, one lower rate HD and two SD's, etc. FCC rules prohibit cable systems from modifying OTA broadcasts -- they have to broadcast what they're handed. (the broadcaster can hand them a different stream than their transmitter, and that's ok. PBS does that around here.) And ATSC (8VSB) is MPEG-2, and so's the US cable network.

Skippy25

join:2000-09-13
Hazelwood, MO
There is an entire website dedicated to keeping track of the compression/bit rate being used by DirecTV and it will show you what shows are being shown at what rate.

I dont recall what it is, but I am sure your friend Google can find it for you.

cramer
Premium
join:2007-04-10
Raleigh, NC
kudos:9
I wasn't talking about DISH and/or Directv -- who use MPEG-4 and various patented variable field compression Magic(tm) to reduce the bit rate even more. Or Uverse who use low bitrates and smoothing (aka "blurring") to reduce their bandwidth. (if all you watch is Uverse, you won't notice it.)

I was talking about ATSC (over-the-air) and CABLE broadcasts -- which are MPEG-2, still.