Rane MM 12 Bedienungshandbuch Seite 17

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OWNER’S MANUAL
17
SIXTY-FOUR
Effects Engine
The internal effects engine is located in the FlexFX Loop. This allows any
combination of Deck 1, Deck 2, Deck 3, Deck 4, Mic 1 and Mic 2 to be assigned
to an effect. The FlexFX Loop supports recording, cueing and Main Mix level
control of assigned channels. There are six built-in effects:
Filter Flanger Phaser Hold Echo Robot Reverb.
Effects share these general behaviors:
The effect time is saved for each effect.
Changing BPM for one effect changes the BPM for all effects.
Tapping the BPM requires at least two taps.
Changing the Beat multiplier results in an immediate change in effect time.
Changing the effect time adjusts the multiplier for other effects so that the new
multiplier is as close as possible to the saved effect time.
Typical workow for assigning a deck to an effect is to assign the deck to the
FlexFx Loop, select the desired effect and then turn the effect ON. Note that LFO
effects are synchronized when the FlexFx button is turned ON to ensure that they
start on-beat as expected.
FILTER Effect
The Filter Effect has a swept LFO synchronized to a selected BPM that sweeps
the frequency of the selected lter type. There are four lter options:
High-pass lter with high-frequency sync.
High-pass lter with low-frequency sync.
Low-pass lter with high-frequency sync.
Low-pass lter with low-frequency sync.
To sync to the BPM at the high point of the sweep, choose high-frequency sync.To sync to the BPM at the
low point of the sweep, choose low-frequency sync. The type of lter is selected in the menu on the mixer
in the "Filter Effect Options Menu" on page 23, or in the "Effects Screen" on page 27. Operation of
controls for the lter is dened in the "Effects Parameter Table" on page 20.
FLANGER Effect
Flanging is an audio effect produced by mixing two identical signals together, with one signal delayed
by a small and gradually changing period, usually smaller than 20 milliseconds. This produces a swept
comb lter effect. Varying the time delay causes these to sweep up and down the frequency spectrum.
Part of the output signal is fed back to the input producing a resonance effect which further enhances the
intensity of the peaks and troughs. The Flanger has two possible modes of operation:
Positive feedback.
Negative feedback.
The type of feedback is selected in the menu on the mixer in the "Flanger Effect Options Menu" on page
23, or in the "Effects Screen" on page 27. Operation of controls for the Flanger is dened in the
"Effects Parameter Table" on page 20.
PHASER Effect
The Phaser effect is created by splitting an audio signal into two paths. One path treats the signal with
one or more all-pass lters. When signals from the two paths are mixed, the frequencies that are out
of phase cancel out, creating the phaser's characteristic notches. An LFO (low frequency oscillator)
modulates the frequency of the all-pass lters. Operation of controls for the Phaser is dened in the
"Effects Parameter Table" on page 20.
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