Owner's Manual - Roland
Owner's Manual - Roland
Owner's Manual - Roland
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Modifying the Brightness of a Sound<br />
with a Filter (TVF/TVF Env)<br />
Rhythm TVF<br />
Filter Type<br />
Selects the type of filter. A filter cuts or boosts a specific<br />
frequency region to change a sound’s brightness, thickness,<br />
or other qualities.<br />
Value<br />
OFF: No filter is used.<br />
LPF: Low Pass Filter. This reduces the volume of all<br />
frequencies above the cutoff frequency (Cutoff<br />
Freq) in order to round off, or un-brighten the<br />
sound. This is the most common filter used in<br />
synthesizers.<br />
BPF: Band Pass Filter. This leaves only the frequencies<br />
in the region of the cutoff frequency (Cutoff<br />
Frequency), and cuts the rest. This can be useful<br />
when creating distinctive sounds.<br />
HPF: High Pass Filter. This cuts the frequencies in the<br />
region below the cutoff frequency (Cutoff<br />
Frequency). This is suitable for creating<br />
percussive sounds emphasizing their higher<br />
tones.<br />
PKG: Peaking Filter. This emphasizes the frequencies in<br />
the region of the cutoff frequency (Cutoff<br />
Frequency). You can use this to create wah-wah<br />
effects by employing an LFO to change the cutoff<br />
frequency cyclically.<br />
LPF2: Low Pass Filter 2. Although frequency<br />
components above the Cutoff frequency (Cutoff<br />
Frequency) are cut, the sensitivity of this filter is<br />
half that of the LPF. This makes it a comparatively<br />
warmer low pass filter. This filter is good for use<br />
with simulated instrument sounds such as the<br />
acoustic piano.<br />
LPF3: Low Pass Filter 3. Although frequency<br />
components above the Cutoff frequency (Cutoff<br />
Frequency) are cut, the sensitivity of this filter<br />
changes according to the Cutoff frequency. While<br />
this filter is also good for use with simulated<br />
acoustic instrument sounds, the nuance it<br />
exhibits differs from that of the LPF2, even with<br />
the same TVF Envelope settings.<br />
If you set “LPF2” or “LPF3,” the setting for the Resonance<br />
parameter will be ignored.<br />
Cutoff Frequency<br />
Creating a Rhythm Set<br />
Selects the frequency at which the filter begins to have an<br />
effect on the waveform’s frequency components.<br />
Value: 0–127<br />
With “LPF/LPF2/LPF3” selected for the Filter Type parameter,<br />
lower cutoff frequency settings reduce a tone’s upper<br />
harmonics for a more rounded, warmer sound. Higher<br />
settings make it sound brighter.<br />
If “BPF” is selected, harmonic components will change<br />
depending on the TVF Cutoff Frequency setting. This can be<br />
useful when creating distinctive sounds.<br />
With “HPF” selected, higher Cutoff Frequency settings will<br />
reduce lower harmonics to emphasize just the brighter<br />
components of the sound.<br />
With “PKG” selected, the harmonics to be emphasized will<br />
vary depending on Cutoff Frequency setting.<br />
Resonance<br />
fig.06-034.e<br />
Emphasizes the portion of the sound in the region of the<br />
cutoff frequency, adding character to the sound. Excessively<br />
high settings can produce oscillation, causing the sound to<br />
distort.<br />
Value: 0–127<br />
Level<br />
High<br />
parameter value<br />
Low<br />
LPF BPF HPF PKG<br />
Cutoff frequency<br />
Frequency<br />
131<br />
Overview Connections VS-700C Console VS-700R I/O Fantom VS Appendix