Propellerhead Reason - 4.0 Instrukcja Operacji Pobierz pdf (Strona 200)

SUBTRACTOR SYNTHESIZER

198

Pitch Bend and Modulation Wheels

The Pitch Bend wheel is used for “bending” notes, like bending the strings on a guitar.

The Modulation wheel can be used to apply various modulation while you are playing.

Virtually all MIDI keyboards have Pitch Bend and Modulation controls. Subtractor fea-

tures not only the settings for how incoming MIDI Pitch Bend and Modulation wheel

messages should affect the sound. Subtractor also has two functional wheels that

could be used to apply real time modulation and pitch bend should you not have these

controllers on your keyboard, or if you aren’t using a keyboard at all. The Subtractor

wheels mirror the movements of the MIDI keyboard controllers.

Pitch Bend Range

The Range parameter sets the amount of pitch bend when the wheel is turned fully up

or down. The maximum range is “24” (=up/down 2 Octaves).

Modulation Wheel

The Modulation wheel can be set to simultaneously control a number of parameters.

You can set positive or negative values, just like in the Velocity Control section. The

following parameters can be affected by the modulation wheel:

Legato

Legato works best with monophonic sounds. Set Polyphony (see below) to 1 and try

the following:

D Hold down a key and press another key without releasing the previous.

Notice that the pitch changes, but the envelopes do not start over. That is, there

will be no new “attack”.

D If polyphony is set to more voices than 1, Legato will only be applied

when all the assigned voices are “used up”.

For example, if you had a polyphony setting of “4” and you held down a 4 note

chord, the next note you played would be Legato. Note, however, that this Legato

voice will “steal” one of the voices in the 4 note chord, since all the assigned

voices were already used up!

Retrig

This is the “normal” setting for playing polyphonic patches. That is, when you press a

key without releasing the previous, the envelopes are retriggered, like when you re-

lease all keys and then press a new one. In monophonic mode, Retrig has an addi-

tional function; if you press a key, hold it, press a new key and then release that, the

first note is also retriggered.

Portamento (Time)

Portamento is when the pitch “glides” between the notes you play, instead of instantly

changing the pitch. The Portamento knob is used to set how long it takes for the pitch

to glide from one pitch to the next. If you don’t want any Portamento at all, set this

knob to zero.

Setting Number of Voices - Polyphony

This determines the polyphony, i.e. the number of voices a Subtractor Patch can play

simultaneously. This can be used to make a patch monophonic (=a setting of “1”), or

to extend the number of voices available for a patch. The maximum number of voices

you can set a Subtractor Patch to use is 99. In the (unlikely) event you should need

more voices, you can always create another Subtractor!

! Note that the Polyphony setting does not “hog” voices. For example, if

you have a patch that has a polyphony setting of ten voices, but the part

the patch plays only uses four voices, this won’t mean that you are “wast-

ing” six voices. In other words, the polyphony setting is not something

you need to consider much if you want to conserve CPU power - it is the

number of voices actually used that counts.

Parameter

Description

F. Freq This sets modulation wheel control of the Filter 1 Frequency parame-

ter. A positive value will increase the frequency if the wheel is pushed

forward. Negative values invert this relationship.

F. Res This sets modulation wheel control of the Filter 1 Resonance param-

eter. A positive value will increase the resonance if the wheel is

pushed forward. Negative values invert this relationship.

LFO 1 This sets modulation wheel control of the LFO 1 Amount parameter.

A positive value will increase the Amount if the wheel is pushed for-

ward. Negative values invert this relationship.

Phase This sets modulation wheel control of the Phase Offset parameter for

both Osc 1 and 2. Note that Phase Offset Modulation (Subtraction

or Multiplication) must be activated for this to have any effect (see

page 189).

FM This sets modulation wheel control of the FM Amount parameter. A

positive value will increase the FM amount if the wheel is pushed for-

ward. Negative values invert this relationship. Both oscillators must

be activated for this to have any effect.

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