AudioRealism Bass Line Bedienungsanleitung PDF herunterladen (Seite 31)

Subtractive virtual synthesizer - FulSynth 16

Figure 2-XVI Ideal LPF

At fc half of the power in the audio signal has been lost. Below fc, a low-pass

filter has no effect on the audio signal.

Closer to a real curve:

Figure 2-XVII Low-pass filter frequency response. fc at 3dB

The cut-off frequency can be controlled from the synthesizer user interface

and gives the possibility of windowing the part of the spectrum we want. In other

words, it subtracts an undesirable harmonic spectrum.

Representation and importance of the cut-off frequency: An ideal white noise

spectrum filtered by different ideal filters, represented on a logarithmic frequency axis

(John Hopkins University and Ross 2010):

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AudioRealism Bass Line Bedienungsanleitung Seite 31