,
if stereo material is recorded with a coincident pair of figure-of-eight micro-
phones, moving the ROT slider is exactly equivalent to rotating the microphone
pair. Other microphone arrays and multimicrophone setups do not rotate
perfectly, but using this control is frequently preferable to simply adjusting
balance. The display shows the actual channel gains for a continually panned
source.
FiFnS is used for digftaiiy correcting probelms you used to be able to fix (or
create) by switching analog cabies around. The normal setting is +L to the left
output and +R to the right output. Other settings should only be used when
correcting some problem created previously in the recording process.
+L+R e Normal Routing
RFnS (Right Channel
Flip ‘n’ Swap)
+L-R = Right Channel polarity inverted (flipped)
+R+L = Left and Right Channels swapped
-R+L = Right flipped and swapped with Left
Equalization Page
BASL and BASR are 6dB/octave shelving EQ controls with a range of +6 dB
boost and -18dB cut. They move in .50 dB steps from +6 to -6 dB. The cross-
over point is adjusted with BXOV.
BASL and BASR
These controls allow independent adjustment of left and right treble. They may
be used toge!her with the stereo adjustments to create a 12 dB/octave cut or
boost. Note that the 3 dB frequencies can be dtterent from the stereo set.
LTRB and RTRB
BXOVsetsthecrossoverpointforBASLandBASR. WhenBASLandBASRare
set to full cut, the level is -3 dB at the frequency set with BXOV.
BXOV (Bass Crossover)
TXLR sets the crossover point for LTRB and RTRB. When either is set to full
TXLFI (Independent
cut, the level is -3 dB at the frequency set with TXLR.
Treble Crossover)
SPEQ sets the amount of a crossfeed between channels. The signal first goes
through a 6 dB/octave low-pass filterwhose frequency is set with BXOV. When
SPEQ is set positive (above 0) the crossfeed has a negative sign. When SPEQ
is set negative (below O), the crossfeed has a positive sign. When the control is
set to either maximum or minimum, the gain in the crossfeed circuit is unity.
SPEQ (Spatial EQ)
The result of this control is to change the separation of few frequency stereo
signals. When the control is raised, low frequencies in the sum (mono) channel
are reduced, and low frequencies in the difference (stereo) channel are raised.
With the control at maximum, low frequency mono signals are completely
removed. This represents an extreme setting which should seldom be needed
in practice.
Tne ~Igontt?rns and their Parameters
4-35
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