 djrobx
join:2000-05-31
Valencia, CA
kudos:1
 ·Verizon Wireless..
 ·RoadRunner Cable
 ·AT&T U-Verse
 ·VOIPo
·PHONE POWER
| reply to fAcEtIOUs
Re: Rural General Suckitude 8.6mbps MPEG-2? Yuck!
Problem is, cable or sat is going to use WPVI's 8.6mbps ABC broadcast as their source. So no matter where you go, it's going to, at best, be that same 8.6mbps crappy quality, perhaps with even more artifacts introduced if it's transcoded to MPEG-4 or pushed through a cable company compressor to guarantee WPVI doesn't change their mind and up the data rate. It's unlikely that TV providers are going to go through the trouble to get their encoding equipment installed at a point prior to being compressed for OTA transmission.
You have, however, perfectly illustrated why I cringe when people say OTA is superior because it's "uncompressed". As you've shown it may be compressed quite severely! Many cable systems just remux the same quality data onto a QAM stream.
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|
 tschmidtPremium,MVM
join:2000-11-12
Milford, NH
kudos:5
 ·Fairpoint Commun..
 ·Hollis Hosting
1 edit | said by djrobx: I cringe when people say OTA is superior because it's "uncompressed". Agree, most people don't realize an uncompressed 1080i or 720p raw bit stream is over a Gigabit per second. Lossy compression is used to reduce it to around 20 mbps.
Compression can be used to reduced data rate to anything desired. However, greater the level of compression the poorer the image/motion quality.
/tom |
