Appendix
216
Quantum Manual
To give you an idea of the extent of damping, consider this
example of a lowpass filter: a reduction of 24dB reduces
the original level one octave above the cutoff point by
approx. 94%. The damping factor two octaves above the
cutoff point reduces the original level by more than 99%,
which in most cases means this portion of the signal is no
longer audible.
The Quantum’s filter also features a resonance parameter.
Resonance in the context of a low, band or high pass filter
means that a narrow frequency band around the cutoff
point is emphasized. The following image illustrates the
effect of the resonance parameter on the filter’s frequency
curve:
If the resonance is raised to a great extent then the filter
will begin self-oscillation – i.e. the filter generates an audi-
ble sine wave even when it does not receive an incoming
signal.
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Summary of Contents for QUANTUM
Page 1: ...USER MANUAL...
