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Originally Posted by scharfis_brain
3dsnar: now compare my inverted sample to your 90 degree sample. both show the same behavior: "weapons loaded" comes from the center.
And that is why your 90 degree sample also is inverted.
I hope that it now should be clear what I meant all the time that Rockarias personal (inverted) Matrix destroys some of the surround information.
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Scharfis, I agree with you (partly).
Yes, the inverted version causes wrong position of some sounds in the surround panorama (in case of the 180 phase shifts).
The 90 deg. phase shift in general destroys much more significantly the complete sound (i.e. the inverted 180 deg shift differs from the inverted 90 deg shift. The 90 deg is even worst.).
So far it seems that the the best results are obtained with this equation:
Lt = FL{0°} + 0.7071 C{0°} + 0.7071 LFE{0°} + 0.866 SL{180°} + 0.5 SR{180°}
Rt = FR{0°} + 0.7071 C{0°} + 0.7071 LFE{0°} + 0.5 SL{0°} + 0.866 SR{0°}
Cheers, 3d.