Yamaha MFC1 Specifications download pdf (Page 13)

STEREO FLANGE

A combination of Delay and LFO (Low Frequency

Oscillation) modulation, the popular Flanging effect can

dramatically thicken the sound of keyboard in-

struments, or produce the “aircraft” sound popular

among guitarists. Basically, a short delay time is varied

with LFO modulation so that the delayed signal moves

in relation to the direct signal. The resultant variations

in pitch and stereo imaging are known as “flanging”.

1. MOD FREQ. Range: 0.1 ~ 40.0 Hz

Sets the speed of modulation, and hence the rate

at which the effect varies.

2. MOD DEPTH. Range: 0 ~ 100%

This sets the amount of delay time variation, thus

adjusting the “depth” of the effect. At the max-

imum setting, the delay time is varied by +/–

4 msec.

3. MOD DELAY TIME. Range: 0.1 ~ 100.0 msec

This sets the basic delay time from the initial direct

sound to the flange effect. When set to lower than

1 msec, more high-frequency variation is produced;

while a setting higher than 3 msec will create more

low-frequency variation.

4. F. B. GAIN. Range: 0~99%

Sets the amount of flange signal which is fed back

into the circuit for further modulation. This controls

the complexity of the effect, its “strength,” and its

overall decay time.

CHORUS

With the Chorus effect, a violin, keyboard, or guitar can

sound like an entire ensemble. Chorusing splits the in-

coming signal into three signals placed at the center,

left, and right in the stereo image. Each signal is delayed

slightly, and then its delay time and level are modulated

by the LFO (Low Frequency Oscillator).

1. MOD FREQ. Range: 0.1 ~ 40.0 Hz

Sets the delay time modulation speed (frequency).

2. DELAY MODULATION DEPTH. Range: 0 ~ 100%

This sets the amount by which the delay time of one

delay signal is varied in relation to the other. At the

maximum setting, the delay time is varied by +/–

4 msec.

3. AMPLITUDE MODULATION DEPTH. Range: 0 ~

100%

This sets the amount by which the amplitude (level)

of the input signal is varied.

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Yamaha MFC1 Specifications Page 13

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