Quote:
Modulated QM uses different matrices for different types of scenes within one clip. For different parts of the clip, it takes the QM with the highest compression for that particular clip.
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- Modulated uses the MPEG matrix when a frame's quantizer is <=3, and the H.263 matrix when the quantizer is >=4.
- New Modulated HQ uses the exact opposite, so the H.263 matrix when a frame's quantizer is <=3, and the MPEG matrix when the quantizer is >=4.
So it's not as smart as you might have hoped, but it's still quite effective.