APPLIED ACOUSTICS SYSTEMS ULTRA ANALOG Instrukcja Użytkownika Pobierz pdf (Strona 52)

52 Parameters

Clicking on the Legato button switches the module into legato mode and the sliding between

two notes then only occurs if the second note is played before the ﬁrst one is released. When a

note is played staccato, or in other words if a key is released before the next one is depressed, there

is no glide effect. Note that even though the glide effect is available when the Key module is in

polyphonic mode, it is mostly dedicated to monophonic playing. In polyphonic mode, the sames

rules apply to individual voices and the overall result is less predictable.

4.4.5 The Vibrato Module

The vibrato effect is equivalent to a periodic low frequency pitch mod-

ulation. This effect is generally obtained by using an LFO to modulate the

pitch signal of an oscillator. In Ultra Analog VA, a dedicated module is

provided for this effect. The vibrato module is hard wired and affects the

pitch of both oscillators.

The Rate knob sets the frequency of the vibrato effect from 0.3 Hz to

10 Hz. The Amount knob sets the depth of the effect, or in other words the

amplitude of the frequency variations. In its leftmost position, there is no vibrato and turning the

knob clockwise increases the amount of pitch variation. The MW gain knob is used to determine

the effect of the keyboard modulation wheel on the depth of the vibrato. When this knob is fully

turned to the left, the modulation wheel has no effect but as it is turned clockwise the depth of the

vibrato increases when the modulation wheel is used. The increase is always relative to the position

of the Amount knob and becomes greater as the MW knob is turned clockwise.

The vibrato can be adjusted not to start at the beginning of a note but with a little lag. This lag,

in seconds, is set by the Delay knob. The Fade knob allows you to set the amount of time taken by

the amplitude of the vibrato effect to grow from zero to the amount set by the Amount knob.

4.4.6 The Arpeggiator Module

The Arpeggiator module allows one to play sequentially all the

notes that are played on the keyboard. In other words, arpeggios are

played rather than chords. The modules allows one to produce a wide

range of arpeggios and rhythmic patterns and to sync the effects to the

tempo of an external sequencer.

Arpeggio Patterns

The arpeggio pattern is set by the combination of the value of the

Range, Span and Order controls. The Range control is used to select

the number of octaves across which the pattern is repeated. When the range is set to 0, there is

no transposition and only the notes currently depressed are played. If set to a value between 1

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APPLIED ACOUSTICS SYSTEMS ULTRA ANALOG Instrukcja Użytkownika Strona 52