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6. In Parameter Details, set Drive AMS Intensity to 0dB.
7. Set the Table to Linear.
This will sound just as if Osc 1 was set to the Sine
waveform.
8. Use + to step through the tables, and go to the
PROGRAM > Home– Tone Adjust page to
experiment with different settings of Slider 9 (VPM
Osc 1 Output Level).
Start with Slider 9 around the mid-point, and keep trying out
different levels as you listen to the different tables. The
brighter the modulator's waveform, the less level you'll
need. If the level is too high, you'll start to hear noise and
grit.
Finally, let's bring back the EG3 modulation of Drive:
9. Set Drive to -36dB.
10.In Parameter Details, set Drive AMS Intensity to
+36dB.
11.Again, use + to step through the tables, and
experiment with different settings of Slider 9.
Waveshaping and PCM
You can use waveshaping to alter any mono sample in the
NAUTILUS, including sounds from ROM, EXs, User
Sample Banks, and SAMPLING mode.
Continuing from the above:
1. Go to the Patch Panel.
2. Select Algorithm 51, PCM -> 1 -> 4-pole.
3. Open the menu, and select the Delete All Connections
command.
An "Are you sure?" dialog will appear.
4. Press OK to confirm the deletion.
All of the cables will disappear, returning the algorithm to its
default state.
5. Go to the PCM Osc page.
6. Set MS1 Multisample to 0330:El.Bass-Slap Muted.
7. Go to the PCM Mod page.
8. Set Velocity Sens +050.
This makes the level respond to velocity. Since the
waveshaper's effect changes with the input level, this means
that velocity will also affect the timbre.
9. Go to the VPM Osc 1 page.
10.Set the Mode to Waveshaper.
This means that VPM Osc 1 is no longer an oscillator per se;
instead, it's functioning as a waveshaper, processing the
output of the PCM Oscillator.
11.Set the Table to Resonant2.
In the popup list, Resonant2 is near the middle of the third
column.
12.Set Drive to -30dB.
13.In Parameter Details, Set Drive AMS to EG3, and set
the Intensity to +30dB.
14.Set Offset to +50.
15.In Parameter Details, Set Offset AMS to Exponential
Velocity, and set the Intensity to -50.
16.Set the Makeup Gain to +24dB.
17.Play a slow bass line on the keyboard.
Synthesis with the MOD-7: a guided tour Waveshaping
Notice the "filter sweep" sound. This comes entirely from
modulating the drive through the table; by itself, the
multisample has a very dark tone.
Waveshaping and filtered PCM
Using PCM with waveshaping produces unique results, but
it can also be tricky to control. You'll probably need to
experiment to find which tables best match a particular
Multisample. Often, waveshaping works better with darker
input sounds, so it may be useful to patch in a lowpass filter
between the PCM and the VPM Oscillator.
Continuing from the above:
1. Go to the PCM Osc page.
2. Set MS1 Multisample to 0201:Voice-Pop Ah.
3. Go to the Patch Panel.
4. Connect the PCM Osc Output to Filter A's Input.
5. Connect Filter A's Output to VPM Osc 1's Input 1.
6. Connect VPM Osc 1's Output to Input 1 on the
Output Mixer.
Now, the signal flow is PCM -> Filter A -> VPM Osc 1 ->
Output.
7. Play the keyboard.
At this point, the sound is pretty buzzy. Let's see what the
filter will do:
8. While playing a chord in the middle of the keyboard,
move Tone Adjust Slider 7 so that it's slightly below
the center.
This lowers the cutoff frequency of the filter, so that the
sound changes from buzzy to mellow–but the waveshaper is
still having a strong effect.
Waveshaping, PCM, and VPM
You can use Waveshaping, PCM, and VPM simultaneously,
for even more complex timbres.
Continuing from the above:
1. Go to the PCM Mod page.
2. Set Freq Offset to +01.0.
The PCM will be a modulator in this sound, and so this adds
a little chorus effect to the end result.
3. Go to the VPM Osc 1 page.
4. Set the Mode to Sine + Waveshaper.
Now, VPM Osc 1 works as an oscillator again, and we're
back in the realm of FM synthesis. The filtered PCM sound
is the modulator, and the VPM Osc is the carrier.
5. Set Input Level 1 to 80.
This controls the intensity of the modulation from the
filtered PCM.
6. Set the Table to Mixture4.
In the popup list, Mixture4 is near the bottom of the second
column.
7. Set Drive to -36dB.
8. In Parameter Details, set the Drive AMS Intensity to
+30dB.
This means that the input won't quite use the entire table,
and leaves room for Offset to move the active region of the
table without clipping.
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