Propellerhead Reason Spécifications télécharger pdf (Page 104)

SUBTRACTOR SYNTHESIZER

102

D In Octave steps

The range is 0 - 9. The default setting is 4 (where “A” above middle “C” on

your keyboard generates 440 Hz).

D In Semitone steps

Allows you to raise the frequency in 12 semitone steps (1 octave).

D In Cent steps (100th of a semitone)

The range is -50 to 50 (down or up half a semitone).

Oscillator Keyboard Tracking

Oscillator 1 has a button named “Kbd. Track”. If this is switched off, the oscilla-

tor pitch will remain constant, regardless of any incoming note pitch messages,

although the oscillator still reacts to note on/off messages. This can be useful for

certain applications:

D When Frequency Modulation (FM - see page 104) or Ring Modula-

tion (see page 105) is used.

This produces enharmonic sounds with very varying timbre across the key-

board.

D For special effects and non-pitched sounds (like drums or percus-

sion) that should sound the same across the keyboard.

Using Oscillator 2

You activate Osc 2 by clicking the button next to the text “Osc 2“. Setting oscil-

lator frequency and keyboard tracking is identical to Oscillator 1.

Adding a second oscillator enables many new modulation possibilities which

can produce richer timbres. A basic example is to slightly detune (+/– a few

cents) one of the oscillators. This slight frequency offset causes the oscillators

to “beat” against each other, producing a wider and richer sound. Also, by com-

bining two different waveforms, and adding frequency or ring modulation, many

new timbres can be created.

Oscillator Mix

The Osc Mix knob determines the output balance between Osc 1 and Osc 2. To

be able to clearly hear both oscillators, the “Osc Mix” knob should be set some-

where around the center position. If you turn the Mix knob fully to the left, only

Osc 1 will be heard, and vice versa. [Command]/[Ctrl]-clicking the knob sets the

Mix parameter to center position.

Oscillator 2 Waveform

The waveform alternatives for Oscillator 2 are identical to those of Oscillator 1.

However, the Noise Generator provides a third sound generating source (in ad-

dition to the two oscillators) in Subtractor, and could be regarded as an “extra”

waveform for Oscillator 2, as it is internally routed to the Oscillator 2 output. See

below for a description of the Noise Generator.

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Propellerhead Reason Spécifications Page 104

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