Bravo-HD+: Orchestra Aragon
Hey! if you are into latin music. This is a good presentation in HD/DD5.1
Hey! if you are into latin music. This is a good presentation in HD/DD5.1
The family is enjoying this one, good tip!Sean Mota said:Hey! if you are into latin music. This is a good presentation in HD/DD5.1
Sean Mota said:Watching it right now. It has been playing all day excellent show but dissapointed about the PQ. In fast action movement, there is compression artifact. As much as I hate to say it, there's no other way to describe it. I don't like it and it is not what I expect from HD. I want clean picture not compressed to the point that I can see these artifacts. They are very obvious on Bravo-HD. I have been seen Bravo-HD and it's apparent that it has been there from the beginning when Bravo-HD went live.
According to Wilt Hildenbrand of VOOM all of the slots for channels have been blocked out since day 1 so that there won't be any crowding or squeezing via increased compression as new channels are added.mike123abc said:I wonder if it is a problem with BravoHD or is it at VOOM's end?
With all the new channels coming online at VOOM right now, their capacity has to be getting pretty tight.
Compression artifacts are typically the result of quantization in lossy data compression. Where transform coding is used, they are typically in the form of one of the basis functions of the transform coder's transform space.
Compression artifacts in picture coding
Where the DCT image transform is used, for example, they are often 8x8 pixel squares, containing a stripe or "checkerboard" pattern.
Where predictive coding of motion pictures is used, as in MPEG-1, compression artifacts tend to remain on several generation of decompressed frames, leading to a "painting" effect being seen, as if the picture was being painted by an unseen artist's paint-brush.
Where motion prediction is used, as in MPEG-2 or MPEG-4, compression artifacts tend to move with the optic flow of the image, leading to a peculiar effect, part way between a painting effect and "grime" that moves with objects in the scene.
Errors in the bit-stream can lead to errors similar to large quantization errors, or can disrupt the parsing of the data stream entirely for a short time, leading to "break-up" of the picture. Where gross errors have occurred in the bit-stream, it is not unknown for decoders to continue to apply 'painting' updates to the damaged picture, creating "ghost image" effects.
To stop the build-up of compression artifacts, most compression systems occasionally send an entire compressed frame without prediction or differencing. In MPEG picture coding, these are known as "I-frames".