At 05:29 PM 7/25/2012 +0100, Geoffrey Barton wrote:
Larry Gruber wrote:
> p is the degree of "phasiness" (e.g. 0.0 to 0.25) which, in a note from
> Geoffrey, relates to the degree of accuracy of the phase difference
networks.
not from me, it is incorrect. Nothing to do with the phase shifter
accuracy; a perfect phase shifter will not give zero phasiness. The
phasiness is the manifestation of the fact that you do not quite have
enough directional information to decode to that order, ie. the difference
between BHJ and B-format. 'Forward preference' is MAG's term for reducing
the subjective effect in the forward direction at the expense of
increasing it at the rear. The Minim and A+D Variable Preference design
had a pot which allowed this to be, er.. varied, including some way back
of neutral. This caused MAG some surprise when he first played with it, as
he was unaware of what I had done.
My apologies. In looking at the note again, I see I was too quick to
assume an association which did not exist between a comment you made about
the 'p' parameter and phasiness with the following one regarding phase
shifter error.
--Larry Gruber
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