Filter cutoff and resonance
In every lowpass filter (ES2: LP mode for Filter 1; Filter 2 is a lowpass filter), all frequency portions above the cutoff frequency are suppressed, or cut off, hence the name. If you’re new to synthesizers and the concepts behind filters, see Filters.
Cutoff and resonance parameters
Cutoff Frequency knob: Control the brilliance of the signal.
In a lowpass filter (LP), the higher the cutoff frequency is set, the higher the frequencies of signals that are allowed to pass.
In a highpass filter (HP), the cutoff frequency determines the point where lower frequencies are suppressed and only upper frequencies are allowed to pass.
In a bandpass (BP) or band rejection (notch) filter, the cutoff frequency determines the center frequency for the bandpass or band rejection filter.
Resonance knob: Emphasize or suppress portions of the signal above or below the defined cutoff frequency.
In a lowpass (LP) filter, Resonance emphasizes or suppresses signals below the cutoff frequency.
In a highpass (HP) filter, Resonance emphasizes or suppresses signals above the cutoff frequency.
In bandpass (BP) or band rejection (notch) filters, resonance emphasizes or suppresses the portions of the signal—the frequency band—that surround the defined frequency, set with the Cutoff Frequency parameter.
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