applied-acoustics-systems ultra analog ユーザーズマニュアル
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Parameters
4.2
The Oscillator Module
The Oscillator module offers the features of the most re-
puted analog oscillators. It provides a fine control on the pitch,
standard waveforms, a sub-oscillator, and a hard sync. The
Oscillator module is implemented using precise modeling al-
gorithms rather than wave tables providing alias free sources
with clean pulse width modulation and synchronization.
standard waveforms, a sub-oscillator, and a hard sync. The
Oscillator module is implemented using precise modeling al-
gorithms rather than wave tables providing alias free sources
with clean pulse width modulation and synchronization.
4.2.1
Waveform
The Shape drop down menu is used to choose the wave form
generated by the oscillator. Wave forms include sine wave,
saw tooth, rectangular and white noise as shown in Figure 3.
generated by the oscillator. Wave forms include sine wave,
saw tooth, rectangular and white noise as shown in Figure 3.
Amplitude
Time
Amplitude
Time
Amplitude
Time
Time
Amplitude
sinus
rectangular
saw tooth
noise
Pulse Width
Figure 3: Choice of wave forms provided by the Oscillator module.
When the Shape is set to rectangular, one has additional control on the waveform through the
use of the PW and LFO knob just below. The PW knob is used to adjust the pulse width of the
rectangular wave. In its leftmost position the pulse is very narrow while in its rightmost position the
wave is perfectly square and only the odd harmonics are heard. The pulse width of the rectangular
waveform can be modulated with the signal received from the LFO module. The LFO knob is used
to control the amount of modulation around the value set with the PW knob.
rectangular wave. In its leftmost position the pulse is very narrow while in its rightmost position the
wave is perfectly square and only the odd harmonics are heard. The pulse width of the rectangular
waveform can be modulated with the signal received from the LFO module. The LFO knob is used
to control the amount of modulation around the value set with the PW knob.
4.2.2
Pitch and Pitch Modulation
The pitch of the Oscillator module can be adjusted using the Octave control, Semi control and the
Detune knob. The Octave control allows one to transpose the pitch by octaves (upper or lower),
the Semi control is used to transpose the pitch by semitones while the Detune knob is used to to
Detune knob. The Octave control allows one to transpose the pitch by octaves (upper or lower),
the Semi control is used to transpose the pitch by semitones while the Detune knob is used to to