User manual

Nero Digital expert settings
Seite 50
11.2.3.3 Scene cut
If you check the Scene cut box, you can use the control to set the sensitivity with which the
encoder detects scene changes. For efficiency, it inserts keyframes at these points whose
information is used by the P- and B-VOPs. This is necessary in scenes involving a lot of fast
movement in order to reproduce the details of the picture accurately.
We advise a central control setting because inserting too many keyframes is inefficient.
11.2.3.4
Fast ME
The Fast ME setting speeds up the encoding process by accelerating motion prediction.
11.2.3.5
Low/High noise
The Low/High noise setting requires you to judge for yourself whether your source features
minor or major interference. If your source does have such interference, you should check
the corresponding box. The encoder will then try to resolve the problems during encoding.
11.2.3.6
High B-VOP quantization
If you check the High B-VOP quantization box, you will increase the quantization of the B-
VOPs.
The increase in quantization will improve the compression of the output file, making it
smaller. However, this also means a reduction in quality
This option is only relevant if B-VOPs are permitted in the Advanced entry (see
Advanced).
11.2.3.7
Rate distortion optimization
The Rate distortion optimization setting enables the encoder to guarantee the ratio
between quality and targeted compression level with automatic decisions.
11.2.3.8
Maximum MV range
The Maximum MV range drop-down list allows you to use predefined values to set the
maximum range for motion vectors.
11.2.3.9
Psycho visual quality level
The Psycho visual quality level setting uses human perception patterns to achieve better
overall quality.
This means, for example, that the quality is better in the middle of the frame than at the
edges because the eyes tend to focus more on the middle and a slight lack of detail on the
edge will not be noticed. Because quality is "saved" on the edge, it is possible either to
improve the overall quality or to increase compression.
11.2.4 Advanced
You can make further settings relating to various areas of the encoding in the Advanced
entry. These are explained below.
These setting options are only available if you have selected Nero Digital, Sony Memory
Stick-Video or Apple iPod in the Nero Digital category.