Doing this I will obtain three signal L (without mono contents), C (The mono content) and R (without mono contents).
Center cut. The classic "vocal cut" filter, except that the output is stereo instead of mono. This is accomplished through FFT phase analysis; the output will have some warbling in it, but stereo separation is preserved.
Left - ("true" Center) = "extreme" Left Right - ("true" Center) = "extreme" Right
Left + (inverted Right) = "zero" CenterFrom this, if you go back to the original Left and Right channels, subtract the "zero" Center from each to create the centered audio channels (which are essentially duplicates of each other):Left - ("zero" Center) = "centered" Left = "true" Center
The best passive system is simplyLn=LRn=RCn=L+R (-3dB)But the stereo sound stage width reduces (move the speakers further apart from compensate).I've read that Michael Gerzon (ambisonics) suggested a better 2>3 conversion, but don't know any more.
"pure" left channel would be the left minus this center channel
Quote"pure" left channel would be the left minus this center channelJAZ if you subctract L+R sum from the left channel, the only thing you'll get will be the Right channel phase invertedIt's simple:L - (L+R) = L - L - R = -RCheers
Yes, but if you do as JAZ suggested you get:L - (L+R)/2 = (L-R)/2
Thanks a lot!!
... sometimes it produce crack/noise in the waveform (I suppose with very high frequency sounds or fast envelope sounds)