Quote:
Originally Posted by 3dsnar
hilbert(...) one of the functions from signal processing toolbox
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OK. Now I see, it is included in a related mathwotk package implying it should perform 90deg shifts correctly on all the inner waves(frequencies) with some delay.
Quote:
Originally Posted by 3dsnar
you can view phase shift as a time delay, but also as an instantaneous operation
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I agree we can have different interpretations and applications depending on the point of views, if we can ignore the time(frequency cycle) advance.
But what matters here is, how Dolby used the definitions for the DPL(II) encoding.
. how did you interpret the dolby's DPL I diagram in your formula?
. the - sign in the formula, interpreted as -180deg shift in your formula, actually works as invert() or -180 deg shift with the mathlab script?
. the 90 deg shift as +90 deg shift withs *1/4 cycle advance or something else?
(*1/4cycle : minimum sync cycles +1/4 cycle of the lowest freq.)