Crumar bassman, Руководство пользователя

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Oscillators
Crumar Bassman sound generation is based on two main oscillators OSC1 &
OSC2 and a sub-oscillator OSC3.
OSC1
offers 2 waveforms : Sawtooth and Square plus Ring Modulator 1 option
and Ring Modulator 2 option , selectable with “WAVEFORM” in the “OSC1”
section ; Control leds will light with every pression of button.
a) Sawtooth – led 1
b) Square – led 2
c) Ring Modulator OSC1 & OSC2 – led 3
d) Ring Modulator OSC1, OSC2 & suboscillator OSC3 (all 3 leds light)
With “OCTAVE” button in the “OSC1” section you can change the reference
octave of sound: available options 16’, 8’, 4’ ; Control leds will light with every
pression of button.
With “TUNE” control you can tune
all instrument (master tuning) with a +/- 6
semitones interval.
With “LEVEL” control you can select the out level of “OSC1”.
OSC2 offers 3 waveforms: Sawtooth, Square and Impulse, plus “Oscillator Sync”
option , selectable with “WAVEFORM” button in the “OSC2” section. Control led
will light with every pression of button.
a) Sawtooth – led 1
b) Square – led 2
c) Impulse – PWM – For activate “pulse width” modulation you have to set
waveform of OSC2 to “impulse”. A modulation will no longer target this
oscillator’s pitch but its symmetry for timbral changes.
d) Oscillator Sync – Every new wave cycle of OSC1 forces OSC2 to restart its
cycle too. OSC2 is therefore controlled or synchronized to OSC1 frequency.
With “Sync” function activated modulation will only target OSC2, resulting
in intense timbres instead of pitch modulations. (all 3 leds light)
With “OCTAVE” button in the “OSC2” section you can change the reference
octave of sound: available options 16’, 8’, 4’ ; Control leds will light with every
pression of button.
With “INTERVAL” control you can control the tuning of OSC2 with +/- 12
semitones but always dependent from “TUNE OSC1”.
With “LEVEL” control you can select the out level of “OSC2”.