Moog MF-103 Specifikace stáhnout pdf (Strana 4)

6. Now set the MF-103 panel controls as follows (See Figure 2):

RATE 32

AMOUNT 2

SWEEP 5

RESONANCE 0

Left Switch LO

Right Switch 6-STAGE

Figure 2 - Basic settings for becoming familiar with your MF-103.

Press the stomp switch. The BYPASS light will now turn green. Playing your

instrument, set the DRIVE control so that the LEVEL indicator lights up yellow most

of the time. You will now hear the phaser signal. Adjust the OUTPUT LEVEL control

so the phaser signal is about the same loudness as the bypassed signal.

Continue to play your instrument. Your instrument's signal is going through the

phaser. Listen to how it affects the quality of your instrument's tone. You will hear

a distinct slow variation. Note that the AMOUNT knob changes the strength of the

variation and the RATE knob changes the speed of the variation.

8. In the next sections we'll explain exactly how a phaser works and what the LFO

does. For now, get a feel for the controls by experimenting with different settings.

FREQUENCIES, FILTERS, AND PHASERS

Let's start with some definitions. Please read this section carefully, as it will help

you to understand the basic ideas behind the MF-103 Twelve-Stage Phaser.

Sound is a vibration of the air. The speed of vibration is called the frequency. It

is measured in Hertz (Hz). One Hz is one vibration per second. We hear vibrations

from 20 Hz to 20,000 Hz.

Musical sounds generally have many frequency components. They're called

harmonics, or overtones, or partials. They are what give a sound its characteristic

tone color, or timbre. A graph showing the strength of each of a sound’s

harmonics is called a spectrum. A typical spectrum of a musical sound is shown

in Figure 3.

1 2 3 4 5 6 7 8 9 ... 15 16

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Moog MF-103 Specifikace Strana 4