PIXAL break up

[son-yah-tive]

I just noticed recently, that I see more pixaliz-ation break up on the TV lately. Not with DVDs, only on cable. Could the HDMI cable be getting weak from the cable box? Or is this just a weak signal now and then from the cable company?

 

[Patrukas777]

I just noticed recently, that I see more pixaliz-ation break up on the TV lately. Not with DVDs, only on cable. Could the HDMI cable be getting weak from the cable box? Or is this just a weak signal now and then from the cable company?

What cable company do you have...the reason why I ask is because cable companies compress the signal (especially in HD). Some compress the signal more than 7 times. During fast scenes it normally becomes pixalated due to the compression and how long it takes to process the signal. Slow scenes should be clear.

 

[son-yah-tive]

We have Comcast. It's fine most of the time. I'm not sure if it's more a problem with certain channels, maybe? I know HGTV does it more than most other channels. Are you saying ATT, or like Direct TV won't have these problems? Thank you for responding.

 

[Patrukas777]

We have Comcast. It's fine most of the time. I'm not sure if it's more a problem with certain channels, maybe? I know HGTV does it more than most other channels. Are you saying ATT, or like Direct TV won't have these problems? Thank you for responding.

All cable companies compress their signals...However, satellite companies do not. So, satellite tv viewing will not have these problems.

 

[jostenmeat]

All cable companies compress their signals...However, satellite companies do not. So, satellite tv viewing will not have these problems.

Are you sure about this?

I thought all providers compressed outside of the sole exception of Fios. I guess I read here that the content providers already compress it to begin with, it's just that the cable/sat companies compress it yet again for bandwidth reasons.

 

[Patrukas777]

Are you sure about this?

I thought all providers compressed outside of the sole exception of Fios. I guess I read here that the content providers already compress it to begin with, it's just that the cable/sat companies compress it yet again for bandwidth reasons.

I spoke to Direct TV and asked them specifically if they compress their hd and they told me they do not. They said they send the signal just as they receive it. However, I did a little research and found that is not so. I really hate being lied to.

You are correct my friend. It appears Fios is the exception.

I heard that sometimes the cable companies compress their signal quite a bit. When people start complaining about the signal, then they lower the compression ratios.....I could not confirm this.

 

[Hi Ho]

The satellite providers use a much more efficient codec to compress signals. MPEG-4 provides better picture quality in the same bandwidth than MPEG-2, which is used by cable companies.

 

[Ron6519]

Pixelization can occur when you have a weak signal. Cause can be too many splitters between the main cable line and your TV. A compromised cable line, such as one that has allowed water to get in from the pole. Any cable wire between the box and the TV that is not 100%. A bad component in you cable box. Etc, etc, etc...
If you can't isloate it, call the cable company to trouble shoot it.
Ron

 

[MDS]

Many times pixelation occurs simply because the cable company is not able to consistently send the data at the required bit rate. It happens at times when the network is saturated because there are too many people in the area currently viewing the channel.

 

[Alex2507]

[Pixelation] happens at times when the network is saturated because there are too many people in the area currently viewing the channel.

Like whenever there is anything good on but the commercials never break up.
They come in like you're watching them on a Blu-ray at Gene's house.