Lexicon LEXICON480LV4 Owner's Manual page 83

Page One
LVL
Level
Page Two
XOV
Bass Xover
Page Three
DIT
Dither
The PONS Adjust Program
PONS Adjust is similar to the Stereo Adjust Program —
A two-channel digital mixer with precision level adjust-
ment, low and high frequency shelving EQ, and preci-
sion stereo balance controls. Additional parameters
include precision binaural rotation, spatial EQ (L-R
shelving boost or cut), and Blumlein shuffler.
PONS Adjust incorporates psychoacoustically opti-
mized noise shaping that can increase the signal-to-
noise performance of a 16-bit digital recording me-
dium. This performance increase is attained by pro-
cessing a digital recording made at 18-bit (or higher)
bitwidth, through PONS, then transferring digitally to a
16-bit medium, and converting back to analog through
an 18-bit converter.
About the PONS Parameters
Page One
LVL (Level)
LVL is a stereo level control, with both channels equally
attenuated or boosted. From -12 to +12 the slider
moves in .25 dB increments. Below -12 it moves in .50
dB increments. Below -60 dB the calibration comes in
larger steps, finally dropping to zero output at -72 dB.
FIN (Fine Level)
FIN is identical to the LVL, but has a range of + 3.5 dB
the setting of LVL. This allows fine adjustment of level
while the mix is proceeding, without fear of over or
undershooting the desired setting. If in a mix you want
to make a level increase at some point of 4.5 dB, and
then drop back to zero, you can set the FIN to the
bottom of its range beforehand. Then readjust LVL so
that the attenuation is once again zero. Now the FIN
control will have a range of 0 to 7 dB of boost.
FIN
BAL
Fine Level
LDB Balance R
HFC SPC
Treble Xover Spatial EQ
SHL
PONS
Shelf
Noise Shaping
Bank 9: the Mastering Programs
TBL
ROT
Treble Left
Rotate
BAS
BAS
Bass Left
Bass Right
SHUF
Shuffler
BAL (Balance)
BAL implements a sine/cosine balance adjustment.
Balance is smoothly adjusted over a wide range, with
excellent resolution in the critical area around zero.
The display indicates the actual channel gains as the
control is varied
ROT (Rotate)
ROT is similar to BAL, but it treats stereo information
somewhat differently. Any signal panned to the center
(mono) will be treated by ROT exactly as it would be
treated by BAL. However, if a signal is panned full right
and the control is moved toward the left, instead of
simply being attenuated (as BAL would do it) the right
channel is inverted in phase and added to the left
channel. A stereo image appears to rotate when this
control is used. Ambient information is preserved, and
both channels appear to retain equal loudness.
If stereo material is recorded with a coincident pair of
figure-of-eight microphones, 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 fre-
quently preferable to simply adjusting balance. The
display shows the actual channel gains for a continu-
ally panned source.
TBL
TBL is a 6dB/octave high shelving EQ that operates on
the left channel. It moves in .5dB increments from +6 to
-6dB, and in 1dB increments below -6dB to Full Cut.
TBR
TBR is identical, but operates on the right channel.
TBR
Treble R
FLP
Flip & Swap
8-5