Post 1 made on Wednesday March 15, 2000 at 15:36 |
wtsupmo Historic Forum Post |
|
|
Having an RCA unit for 6 months I have noticed that when the scene is on a pateel color, or fleshtones, or when a scene fades out, I notice 'a pixelling' effect. The unit is a DS2232RD.. My signal is a strong 92 consistantly. It also does it on the second unit. Any ideas?????
|
|
OP | Post 2 made on Sunday March 19, 2000 at 11:28 |
What you are seeing is called "macroblocking". It happens when the bit rate of an mpeg stream is not sufficient to fully describe the information contained in the picture. MPEG counts on the fact that adjacent pixels and frames are (more often than not) very similar. When you have a complex scene where adjacent pixels and frames are very different you need more bits. If the bit rate on the MPEG encoder is not set high enough you will run out of bits and you will see artifacts like you describe. The short answer is DirecTv lowered the bit rate on their encoders to accomadate a lot of local channels and there is nothing you can do. Sadly, your equipment is functioning properly and so is mine. Sorry for the longwinded, and yet over simplified explaination. my bad.
|
|
Please read the following: Unsolicited commercial advertisements are absolutely not permitted on this forum. Other private buy & sell messages should be posted to our
Marketplace. For information on how to advertise your service or product
click here. Remote Central reserves the right to remove or modify any post that is deemed inappropriate.