Akai MFC42 Operator's Manual download pdf (Page 20)

Chapter 3 Advanced Operations

Control the cut-off cyclically with Groove Modulator (TAP TEMPO)

Cut-off control with LFO

We’re going to explain how to control the cut-off by the Groove Modulator with the rhythm machine

connected (stereo connection). Follow the steps below while playing back the rhythm machine.

Preparation

Turn on the LFO, CUTOFF and 2 POLE

(Stereo channel) keys. Set the FILTER

TYPE as LOW PASS and set the

CUTOFF and RESONANCE knobs to 12

O’clock position. Be sure to set the

DESTINATION switch to Stereo channel

(down position).

Procedure

1. LFO speed setting (speed of change)

Set the LFO speed with TAP TEMPO and BEAT keys.

Press the TAP TEMPO key twice in sync to the rhythm

(default tempo setting is 120BPM). The fine

adjustment of tempo can be made with +/– keys.

Select the note pressing the BEAT key. Pressing the

BEAT key toggles the note selected. Select the

crotchet note for the time being (it can be changed

later). The length of this note is the length (1 cycle) of the LFO waveform. (Refer to the Keyword in

advanced operation.)

2. LFO waveform selection (way of change)

Selects the LFO waveform here to specify how the cut-off changes.

Press WAVE key to select the waveform. The key press toggles the waveform selection. Select the

“Triangle” for this example.

3. LFO magnitude setting (amount of change)

Rotate the DEPTH knob to adjust the

magnitude of LFO waveform. The sound

begins to change as the DEPTH knob is

rotated to + (or –) side. For easier

understanding of sound change, turn the knob

fully clockwise here.

Note: When the DEPTH is set at 0, no change

is observed as the magnitude of waveform is

set to zero.

By this step, the sound is changed cyclically synced to the rhythm.

ON ON

Tempo entry

Press the key twice.

The tempo is calculated by the time between the

first key press and the next.

The tempo entered is shown on the 7-seg LED.

Knob

position

In LFO

Cutoff frequency

(DEPTH knob 0)

–

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 32 33

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Akai MFC42 Operator's Manual Page 20

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