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Manual-

OPERATORS MANUAL

VP 12

VOICE PROCESSOR

WEAR PARTS:

 This product contains no wear parts.

QUICK START

Even if you don’t like to read manuals, read this part. We’ll 

make it quick and painless. We promise.

Turn down (fully counterclockwise) the 

MIC INPUT GAIN

 

and both 

MAIN 

and 

AUX OUTPUT LEVEL

 controls. Set 

the

 LOW CUT FILTER

 to 

10

 (fully CCW) and the 

HI CUT 

FILTER

 to 

40k

 (fully CW). Depress all 

BYPASS 

switches on 

the front panel.

If you are using a mic, connect it to the 

MIC IN

 jack located 

on the rear of the unit. If your mic requires phantom power, 

press the rear panel 

48V PHANTOM POWER

 switch. If you 

are using a line level source (like the output of a wireless mic 

receiver), connect its output to either the ¼" TRS jack or the 

screw terminals located on the rear of the unit labeled 

LINE/

EXPAND IN

. Leave all jumpers located on the long screw ter-

minal patch strip in the original factory shipped position. These 

positions guarantee you access to all the features of the VP 12.

Connect the Outputs of the VP 12 to your mixer board or 

recorder. The switch located directly next to the XLR 

MAIN 

OUT

 jack

 

converts the 

MAIN OUTs

 to either a 

MIC

 or 

LINE

 

level output, depending on your driving requirements. The 

AUX 

OUT

 of the VP 12 is only 

line level

.

Plug the included power supply (see italics below) into the 

VP 12. The yellow 

PWR

 LED will illuminate if all is well. Now 

warn everyone else around, and yell into your mic the loudest 

sound you expect during your session or performance. While 

doing this adjust the 

INPUT GAIN

 control so that the loudest 

sounds will occasionally illuminate the 

OL

 LED. If you are us-

ing the 

LINE IN

, adjust the output level of the previous device 

to occasionally illuminate the 

OL

 LED of the VP 12 when the 

loudest signal you expect to hear is present.

Adjust the VP 12 

OUTPUT LEVEL 

controls to match 

the device you are driving. Now taking one processing section 

at a time, release its 

BYPASS

 switch and adjust the processing 

controls. Any number of processing sections may be 

IN

 or 

BY-

PASSED 

to isolate different parameters. For details on setting 

these properly see 

OPERATING INSTRUCTIONS 

on the last 

two pages.

Never connect anything except an approved Rane power 

supply to the thing that looks like a telephone jack on the rear 
of the VP 12. This is an AC input and requires special atten-
tion if you do not have an operational power supply EXACT-
LY like the one originally packed with your unit.

Summary of Contents for VP 12

Page 1: ...VP 12 VOICE PROCESSOR...

Page 2: ...ilationopenings Ifrackmounting pleaseprovideadequate ventilation Equipment may be located directly above or below this unit but note that some equipment like large power amplifiers may cause an unacce...

Page 3: ...e MAIN OUTs to either a MIC or LINE level output depending on your driving requirements The AUX OUT of the VP 12 is only line level Plug the included power supply see italics below into the VP 12 The...

Page 4: ...the full CCW position the LOW CUT filter is essentially out of the signal path 6 HI CUT filter This control defines the high cut off frequency In the full CW position the HI CUT filter is essentially...

Page 5: ...f compression once the threshold has been exceeded Full CCW rotation effectively disables the compressor y GAIN REDUCTION METER This seven segment meter indicates the amount of signal reduction below...

Page 6: ...th screw terminals and XLR jacks can be used at the same time 5 MAIN and AUX screw terminal outputs Deliver the same outputs as the XLR connectors above 6 Screw terminal patch strip Configured from th...

Page 7: ...e OL LED We call this tickling the overload This may be illegal in your jurisdiction so please check your local authorities If only the LINE EXPAND input is to be used set the front panel switch to LI...

Page 8: ...switch is out Set the COMPRESSOR THRESHOLD control to 20 and the COM PRESSOR RATIO to about 1 6 1 Now apply the largest signal to be unaffected by the COMPRESSOR This establishes the highest signal le...

Page 9: ...s off at a rate of 12 dB per octave The frequency designator 10 Hz to 250 Hz is the corner frequency at which the low end starts to roll off Turned all the way counterclockwise the low cut filter is e...

Page 10: ...breathing Some exhibit 180 phase errors as well as uneven frequency responses as much as 3 dB at the de esser corner frequency Rane De Esser Response Other De Esser Response Deciding that there had t...

Page 11: ...d signal Gate Expander Compressor COMPRESSOR RATIO Determines by how much the gain is held in check Remember higher ratios mean the compres sor works harder essentially turning it into a limiter Ratio...

Page 12: ...ting provides the frequencies of 1000 Hz 1 kHz to 20 kHz BYPASS switch This switch allows parametric equalizers to be bypassed for easy comparison between equalized and non equalized signal BAND 2 The...

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