Orban OPTIMOD 6300 Operating Manual page 218

3-76
OPERATION
Of course, sometimes pumping is desired for certain styles of music
and/or recording. The L
sound.
N) Adjust the T
RANSIENT
This control allows you to insert an audio delay of up to 10 ms in the
sidechain of the five-band compressor. Delaying the gain control signal,
allows attack transients to pass through the multiband compressor un-
compressed, which can increase punch. There is a tradeoff between this
control and the amount of gain reduction in the look-ahead limiter,
which will have to eliminate attack transients exceeding the look-ahead
limiter's threshold.
O) Set the amount of peak limiting with the F
In general, the less peak limiting you use, the better sounding the result
will be. However, if your client demands a "loud" result, the 6300's look-
ahead peak limiter is a powerful tool for achieving this with minimum
distortion or other side effects. Nevertheless, be aware that this function
is not like some familiar "look-ahead" limiters. The release time is in the
order of a few milliseconds and is not user adjustable. The purpose of the
limiter is only to limit peaks that pass through the earlier compressors be-
cause of their finite attack times. Functionally it is used like a peak clip-
per, but thanks to a built-in psychoacoustic model, it has vastly reduced
modulation distortion by comparison to a clipper, whether "soft knee"
or "hard knee."
The main potential side effects of the look-ahead limiter are gain breath-
ing and a "warbling" sound in the midrange when heavy bass is simulta-
neously present. Listen carefully for this intermodulation effect (particu-
larly on vocals) when you are adjusting the F
P) Adjust the B C
ASS LIP
the amount of final limiting. (See page 3-46.)
For most mastering applications, you can set the B
O
. However, if you hear pumping or "warbling" distortion in the look-
FF
ahead limiter caused by heavy bass transients, you can reduce this effect
by setting the B
brated in "dB below the look-ahead limiter threshold.") It is most effec-
tive when the B1/B2 C
prevents intermodulation between vocals and instrumental bass in the
clipper.
Q) If you wish to compare your processed sound to the unprocessed original, re-
call the L A
OOK HEAD
preset. If there is a gross loudness disparity, you may wish to edit the gain
within the L A
OOK HEAD
be careful not to clip the output if you set the bypass for gain.
You can determine whether you are clipping by observing the level me-
ter in the O
UTPUT
R) Save your preset using File/Save Preset.
Once you have created one "mastering" preset, you can edit it to create
others and save them under different names.
A T
IMITER TTACK IME
E
control to taste.
NHANCE
T and B
HRESHOLD ASS
C to a lower level. (The B
ASS LIP
ROSSOVER control is set to 100 Hz, as this setting
L
IMITER preset and toggle between it and your processing
L
IMITER preset and save this as a user preset. However,
page of the mixer.
ORBAN MODEL 6300
controls can help achieve this
L
control.
INAL IMIT
L
control.
INAL IMIT
C S
LIP HAPE controls to complement
C T
ASS LIP HRESHOLD
C
control is cali-
ASS LIP
to