APPLIED ACOUSTICS SYSTEMS STRINGSTUDIO Manual do Utilizador descarregar pdf (Página 42)

42 Parameters

Figure 23: Chorus module.

is turned to the right, the length of the delay line starts to oscillate by an amount which increases

as the knob is turned clockwise thereby increasing the amount by which the different voices are

detuned. The frequency of the modulation is ﬁxed with the Rate knob.

The Fat button is used to control the number of voices in the chorus effect. Switching this button

on increases the number of voices. The Spread knob is used to adjust the amount of dispersion of

the different voices in the stereo ﬁeld. When in its leftmost position, there is an equal amount of left

and right output signal on each channel. In other words the signal is the same on both channels. In

its rightmost position, there is complete separation between the channels, the left output from the

chorus is only sent to the left channel while the right output of the chorus is only sent to the right

channel. Finally, the Mix knob allows one to mix the dry and wet signals. In its leftmost position,

there is no output signal from the chorus and one only ears the dry input signals. In its rightmost

position, one only ears the wet signal from the chorus module. In its center position, there is an

equal amount of dry and wet signal in the output signal from the module.

Note that String Studio VS includes a second chorus algorithm called vintage chorus which

sounds differently and has been kept for preset compatibility reasons.

4.3.6 Flanger

The Flanger module implements the effect known as ﬂanging which colors the sound with a false

pitch effect caused by the addition of a signal of varying delay to the original signal.

The algorithm implemented in this module is shown in Figure 24. The input signal is sent into

a variable delay line. The output of this delay is then mixed with the dry signal and re-injected into

the delay line with a feedback coefﬁcient.

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APPLIED ACOUSTICS SYSTEMS STRINGSTUDIO Manual do Utilizador Página 42