The Filter - Arturia Minimoog V User Manual

On the minimoog V, you will find the noise generator amongst the settings in the mixer panel. A switch allows
you to choose between the white and the pink noise.
5.1.2 The filter or VCF
The audio signal generated by an oscillator (the waveform) is next generally directed to a
filter module (Voltage Controlled Filter). It is this module that we use to control the
sound by filtering (by subtraction, which explains the name given to this type of
synthesis) the harmonics situated around a cut-off frequency. It can be considered to be
a sophisticated equalizer that reduces, depending on the case, the high or low
frequencies of a sound.
The removal of undesirable frequencies at the cut-off frequency is not done suddenly but
progressively, depending on the filtering slope. This filtering slope is expressed in
decibels per octave (or dB/Oct). The filters used in classic analog synthesizers have 24
dB/Oct or 12 dB/Oct slopes.
The minimoog V offers 1 types of slope: 24 dB/Oct slope.
On the minimoog V, you have access to one type of filtering. Let's have a look at some of
his properties:
• The low-pass filter (LPF) progressively removes high frequencies above the
assigned frequency limit (the cut-off frequency) and allows the sound below the cut-
off to pass through unchanged. Depending on the setting we will hear the sound
becoming more or less «brilliant», more or less «dampened».
This is the type of filtering that you will find more often than not on synthesizers that use
subtractive synthesis. It can be found on most of the recent analog and digital
synthesizers.
ARTURIA – minimoog V – USER'S MANUAL
The noise generator set on the mixer
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