
ParadigmDawg
Audioholic Overlord
I find this to ne interesting.
There is no doubt about it, these bitrates are low for HD. Here's a comparison of bitrates and quality on several HD video sources:
Cable: 1920x1080i/59.94 @ 12 Mbps MPEG-2 (bad)
U-Verse: 1920x1080i/59.94 @ 6 Mbps H.264 (not good )
OTA: 1920x1080i/59.94 @ 15 Mbps MPEG-2 (decent)
AVCHD: 1920x1080p/24 @ 10 Mbps H.264 (nice)
Blu-Ray: 1920x1080p/24 @ 25 Mbps H.264 (pristine)
U-Verse's 6 Mbps H.264 would seem to be equivalent to Cable's 12 Mbps MPEG-2 by the thumbrule above, but H.264's artifacts are less objectionable than MPEG-2. MPEG-2 starts to just break into the (very) noticeable macroblocks when starved for bitrate, but H.264 hides them much better. We get the shifting background, the color banding, and the inaccurate luminance and color in dark picture areas, but we don't get the macroblocks
There is no doubt about it, these bitrates are low for HD. Here's a comparison of bitrates and quality on several HD video sources:
Cable: 1920x1080i/59.94 @ 12 Mbps MPEG-2 (bad)
U-Verse: 1920x1080i/59.94 @ 6 Mbps H.264 (not good )
OTA: 1920x1080i/59.94 @ 15 Mbps MPEG-2 (decent)
AVCHD: 1920x1080p/24 @ 10 Mbps H.264 (nice)
Blu-Ray: 1920x1080p/24 @ 25 Mbps H.264 (pristine)
U-Verse's 6 Mbps H.264 would seem to be equivalent to Cable's 12 Mbps MPEG-2 by the thumbrule above, but H.264's artifacts are less objectionable than MPEG-2. MPEG-2 starts to just break into the (very) noticeable macroblocks when starved for bitrate, but H.264 hides them much better. We get the shifting background, the color banding, and the inaccurate luminance and color in dark picture areas, but we don't get the macroblocks
the audio drop outs on u-verse wont be fixed untill at least aug 2010 was the last i heard but they are working with dolby labs on a possible fix. i too get the audio drops and miro blocking when there is a lot of fast movement if i were a sports fan i would cancle cause it is more noticalbe when watching sports...