Lexicon MPX G2 manual Comb 1 and Comb

Models: MPX G2

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Comb 1 and Comb 2

 

 

 

 

 

 

 

 

 

The Effects and Parameters

 

 

 

 

 

 

 

 

 

 

 

 

Comb 1 and Comb 2

 

 

 

 

 

 

 

 

 

 

 

Comb 1

 

 

 

 

 

The Comb effects work by com-

 

 

 

 

 

 

 

 

bining the original input signal with

 

 

 

 

 

 

 

 

a micro-delayed version. The tiny

 

 

 

 

 

 

 

 

delay difference between the two

 

 

 

 

 

 

 

 

signals causes certain frequen-

 

 

 

 

 

 

 

 

cies to be cancelled or reinforced

 

 

 

 

 

 

 

 

when the two are combined. The

 

 

 

 

 

 

 

 

result is a highly colored version of

 

 

 

 

 

 

 

 

the original source. The coloration

 

 

 

 

 

 

 

 

can be “tuned” with the Comb

 

 

 

 

 

Comb 2

 

(Comb 1) or Depth (Comb 2). Low

 

 

 

 

 

 

 

 

and High pass filters are included

 

 

 

 

 

 

 

 

so you can limit the frequency

 

 

 

 

 

 

 

 

band in which the combing occurs.

 

 

 

 

 

 

 

 

Comb 1 is a

mono comb with

 

 

 

 

 

 

 

 

single-pole low and high cut filters.

 

 

 

 

 

 

 

 

There are two ways to get the

 

 

 

 

 

 

 

 

comb effect. The first is to set mix

 

 

 

 

 

 

 

 

to 100% (wet), then set Notch to 50

 

 

 

 

 

 

 

 

or -50. This essentially creates a

 

 

 

 

 

 

 

 

band-limited signal (limited by

 

 

 

 

 

 

 

 

LoCut and HiCut) which is then run

 

Mix

0-100%

Dry/Wet ratio

 

 

 

 

through a comb. You can also set

 

Level

Off, -89 to +6dB

Amount of effect in the processed signal

 

 

mix= 50%, Lvl = 0dB, and Notch=

 

LoCut

100-10000Hz

Corner frequency of the low cut filter

 

 

+100. In this case, the band-limiter

 

HiCut

100-10000Hz

Corner frequency of the high cut filter

 

 

is part of the comb. In this version,

 

 

 

 

 

 

the effect produces shallower

 

Comb

0-100

A microdelay which positions the notch

 

 

 

 

 

 

 

notch depths outside the band-

 

Notch

-100 to +100

Increases the audibility of the notch

 

 

 

 

Ratio of filter and delay output levels:

 

 

limit region.

 

 

 

 

 

Notch

Filter Output

Mod DelayOutput

 

 

Comb 2 is a

dual mono comb

 

 

 

-100

0%

-100%

 

 

with a second tap, controlled by a

 

 

 

-50

100%

-100%

 

 

 

 

 

 

 

single LFO with adjustable phase.

 

 

 

0

100%

0%

 

 

 

 

 

50

100%

100%

 

 

The phase relation between the

 

 

 

100

0%

100%

 

 

 

 

 

 

 

two waves can be adjusted be-

 

 

 

 

 

 

 

 

 

Rate

0-50Hz or

Mod rate or period ratio (Comb 2 only)

 

 

 

 

tween 0-270°.

 

 

 

 

1:24-24:1 cycles/beat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Rate Units)

 

Selects frequency or cycles/beat (Comb 2 only)

 

35

 

 

190

 

 

 

 

 

 

 

 

 

 

 

 

PW

0-100%

Mod pulse width (Comb 2 only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depth*

0-100%

Mod depth (Comb 2 only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Res

-100 to +100

Resonance (Comb 2 only)

 

Comb1

 

 

 

Phase

0°-270°

Phase difference between the right and left Mod

 

51

 

 

190

 

 

 

 

(Comb 2 only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Comb2

 

 

*= Interpolated; ( ) = Option of preceding parameter

7-27

Page 118
Image 118
Lexicon MPX G2 manual Comb 1 and Comb