6.2. The Bass Wave section
The Bass Wave section expands on the original Farfisa by letting you select and modify
different bass waves.
The
BASS WAVE
knob allows you to select between seven different bass waveforms:
1. The original Farfisa waveform as generated by the tone generators (i.e. the same
waveform as in the treble section when User Wave is off).
2. Saw - Sawtooth wave.
3. Sync - Hard-sync sawtooth wave.
4. Mod - Modified square wave.
5. Square - Square wave.
6. Pulse - Pulse wave (15% duty cycle).
7. Additive - Additive user wave.
8. Shape - Shape user wave (set by the graphic faders on the right side, see
below.
If the
BASS SOFT/SHARP
control is in the SOFT position, the differences between the Bass Waves
will be subtle. Use the SHARP position to hear the difference in waveforms. The same is true if the TONE
knob is set to a low value, see below.
The icons next to the Bass
TONE
knob represent the moon (dark, i.e. 20 Hz) and the sun
(bright, i.e. 20000 Hz). When the Bass Tone is turned full clockwise to bright/20000 Hz,
this bypasses the 24 -dB-per-octave bass tone ladder low-pass filter so all harmonics of the
waveform pass through. When the Bass Tone is at any other value (including 20 Hz/dark)
this sets the filter to the selected cutoff.
The lower the setting of
TONE
, the fewer frequencies get past the low-pass filter. Since the lowest C
in the bass section has a fundamental frequency of 63 Hz, guess what happens when
TONE
is set to
cut off everything above 20 Hz? Nothing gets through, and the BASS section is effectively silenced.
The
RESO
knob lets you change the resonance of the tone filter.
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Arturia - User Manual Farfisa V - Advanced Panel
