AudioRealism Bass Line Manuel d'utilisateur télécharger pdf (Page 35)

Subtractive virtual synthesizer - FulSynth 20

Figure 2-XXV Resonance (Q) in low-pass filters (DJ Jenkem Blog 2009)

2.6.5. Modifiers:,Amplifiers,

In a subtractive synthesizer there is an amplifier as a second modifier, it

modifies the volume, gain or amplitude of the signal coming out from the filter output

(Figure 2-IV).

The amplitude of a signal is related to the perceived loudness and the

dynamics of the performance (however, in a mathematically inexact way (Puckette

2006)). An amplifier input is typically connected to a master volume and an envelope

generator, which helps to emulate the dynamics a natural instrument may offer. While

a filter unit modifies the harmony and melody of a composition, the amplifier stage

may give a crescendo, piano, forte, etc. The performer will consider the importance of

the dynamics in a musical composition when required.

Comment: As an anachronism from the analogue era it is still common to find

the amplifier unit is called a VCA unit (voltage-controlled amplifier) even if the

device is a digital emulation.

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AudioRealism Bass Line Manuel d'utilisateur Page 35