Owner's Manual - Roland

Creating a PatchModifying the Brightness of aSound with a Filter (TVF/TVF Env)If you set “LPF2” or “LPF3,” the setting for the Resonanceparameter will be ignored (p. 69).fig.06-033_50Cutoff Frequency ★1TVFFor details on these settings, refer to “How to Make PatchSettings” (p. 56).Filter Type 3Selects the type of filter. A filter cuts or boosts a specific frequencyregion to change a sound's brightness, thickness, or other qualities.ValueOFF: No filter is used.LPF: Low Pass Filter. This reduces the volume of allfrequencies above the cutoff frequency (Cutoff Freq)in order to round off, or un-brighten the sound.This is the most common filter used in synthesizers.BPF: Band Pass Filter. This leaves only the frequencies inthe region of the cutoff frequency (Cutoff Freq), andcuts the rest. This can be useful when creatingdistinctive sounds.HPF: High Pass Filter. This cuts the frequencies in theregion below the cutoff frequency (Cutoff Freq). Thisis suitable for creating percussive soundsemphasizing their higher tones.PKG: Peaking Filter. This emphasizes the frequencies inthe region of the cutoff frequency (Cutoff Freq). Youcan use this to create wah-wah effects by employingan LFO to change the cutoff frequency cyclically.LPF2: Low Pass Filter 2. Although frequency componentsabove the Cutoff frequency (Cutoff Freq) are cut, thesensitivity of this filter is half that of the LPF. Thismakes it a comparatively warmer low pass filter.This filter is good for use with simulated instrumentsounds such as the acoustic piano.LPF3: Low Pass Filter 3. Although frequency componentsabove the Cutoff frequency (Cutoff Freq) are cut, thesensitivity of this filter changes according to theCutoff frequency. While this filter is also good foruse with simulated acoustic instrument sounds, thenuance it exhibits differs from that of the LPF2, evenwith the same TVF Envelope settings.Selects the frequency at which the filter begins to have an effect onthe waveform’s frequency components.Value: 0–127With “LPF/LPF2/LPF3” selected for the Filter Type parameter,lower cutoff frequency settings reduce a tone’s upper harmonics fora more rounded, warmer sound. Higher settings make it soundbrighter.If “BPF” is selected, harmonic components will change dependingon the TVF Cutoff Frequency setting. This can be useful whencreating distinctive sounds.With “HPF” selected, higher Cutoff Frequency settings will reducelower harmonics to emphasize just the brighter components of thesound.With “PKG” selected, the harmonics to be emphasized will varydepending on Cutoff Frequency setting.To edit the overall patch while preserving the relativedifferences in the Cutoff Frequency values set for each tone, setthe Cutoff Offset parameter (p. 61).Resonance ★ 2Emphasizes the portion of the sound in the region of the cutofffrequency, adding character to the sound. Excessively high settingscan produce oscillation, causing the sound to distort.Value: 0–127To edit the overall patch while preserving the relativedifferences in the Resonance values set for each tone, set theResonance Offset parameter (p. 62).fig.06-034.eLevelHighparameter valueLowLPF BPF HPF PKGFrequencyCutoff frequency69