Roland V-Synth Book page 18

SPEAKER (Speaker Emulation)
The only parameter here is the Speaker Type control, which selects one of 12 preset
equalization settings which mimic the frequency response of different speaker cabinet
models. Particularly useful for guitar sounds in combination with Amplifier Emulation
(see above).
RESONATOR (Hollow-body Emulation)
This COSM algorithm is actually a formant filter. To get an idea of how much this effect
can color a sound, recall 512:INIT PATCH, select the PCM type for oscillator 1 and
change the waveform to number 158 "Nylon Gt Hi". Go to the OSC TVA, flip Sustain
to minimum and Decay to around 70. Select COSM1 Type RESONATOR
2
the Size tab and change the value of Size to 110. Touch the Balance tab
take Balance up to maximum (100). Now return to the COSM Type page and try out
the 3 different Filter Types
labeled ON 5
Types, and you can make these effects more subtle by turning Balance down a little.
✱ S S e e c c o o n n d d l l y y , , t t h h e e s s i i x x F F i i l l t t e e r r a a l l g g o o r r i i t t h h m m s s : :
SBF1 (SideBand Filter 1)
Karplus 1
Very useful for adding/subtracting frequencies from drum sounds. Although called filters,
this and the following two COSM algorithms are actually based on extremely short delays,
and can therefore be used for "Karplus-Strong" physical modeling of plucked strings...
Start from 512:INIT PATCH and select NOISE for oscillator 1. Touch the OSC TVA tab
and take Sustain down to minimum. You will hear a very short burst of noise. Go to COSM1
and select SBF1
Touch the Width tab
but also makes it much quieter. Go back to OSC1 / OSC Type and take Wave Gain up to
maximum (+12) to give the filter more impulse to work with. Note that the filter frequency
is directly linked to oscillator 1 pitch (try turning the PITCH knob in the OSC1 section) and
that it can be finely adjusted with the DETUNE knob in the COSM1 section.
Because the sound is still too quiet (and a little too harsh at the top), Touch the Effect
3
pad , then the MFX tab
Parametric EQ
the high frequencies by setting HIGH to minimum (-15)
experimenting with all the Frequency, Gain and Q values while you are here. Especially
removing some frequencies around 5000 Hz makes the sound much warmer
try turning oscillator 1's PW knob down just a little! Save your sound to program number
302 under the name "Karplus 1".
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4 . Compare them with no effect at all by touching the pad
. Of course different values for Size are more suited to particular Filter
1 . You should now be able to hear a quiet and short plucked string sound.
2 and take the Width value down to 2 - this makes the decay longer
4
and change the Multi Effects algorithm to number 01,
5 . Take TOTAL Gain up to maximum (+15)
1
, touch
3
and
5
6 and remove some of
7 . It's well worth
8
. Also,
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