lhe Algorithms and their Parameters
Mono Pitch Shift
The Mono Piich Shift Algortthm has several useful effects, including predelay,
feedback, andglide.Thep~chshifterinthe3OOincludesapitchdete~ionfeature
GGDGrGf Description
which automatically adjusts the pertod of the splices to match the pitch of
incomingsignals.Thisfeature makesthesplicingintelligent, andgreatlyreduces
the artifacts associated with pitch shift. the Mono Pitch Shift program, each
channel splices independently. It takes about 40 ms for the pitch detector to
obtain an optimal pitch value. Setting the DLY control to this value will give the
smoothest pitch shift. Shorter values c&n ,be used for special effects, or when
extra delay cannot be tolerated.
There are three interacting controls for pitch described below: Glide, Piich
Interval, and Fine Pllch. Adjusting any pitch control activates a long display that
shows the pitch percentage, the musical interval, and any fine adjustment in
cents, Always use this long display when matching Glide to Pitch lntetval and
Fine Pitch.
Mono Pitch Shift Adjustments Page
PCHadjustspitch interval.Theexacttuningcanbealteredby FIN, andtheexact
PCH
pitch shift in intervals and cents is displayed. FIN must be setto the exact middle
of its range if perfect pitch intervals are to be obtained.
In the long display, fine pitch is shown by the number of cents added to, or
subtracted from, the semitone intervals. Remember that PITCH will produce
exact intervals only if FIN iscentered. The rightmost character in the long display
is an asterisk r) if FIN is centered, and a ‘+’ or ‘-’ otherwise. When the VALUE
key turns on the short value display, FIN is not shown in cents, but as a number
ranging from -32 to +32 in order to give a clear indication of how much the pitch
shift has been changed. When
‘**’ is shown, FIN is centered and inactive. As a
rule, 1 count of FIN is worth 2 cents near 200%, 3 cents near lOO%, 6 cents near
50%, and 12 cents near 25%.
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