ARTURIA – ORIGIN – USER’S MANUAL
139
11.1.1.1
The Pitch
The pitch is determined by the oscillation frequency. You can set the frequency of the oscillator
with 2 controllers:
-
The
tuning
parameter ([FREQUENCY]), which allows you to tune the oscillator by semi-
tones in a range of 5 octaves.
-
The
fine tuning
parameter ([FINE]), which finely tunes the oscillator upwards by a semi-
tone. This parameter gives a bit more life to your sound when you use several oscillators
simultaneously, due to difference in frequencies between the oscillators.
11.1.1.2
The Waveform
It is the
waveform
which determines the harmonic richness of the audio signal.
On Origin, 5 waveforms are available:
-
The
sawtooth
presents the richest audio signal of the 3 waveforms (it contains all of the
harmonics at decreasing volume levels in high frequencies). Its sound is ideal for brass
sounds, percussive bass sounds or rich accompaniments.
The sawtooth waveform
-
The
square
possesses a more “hollow” sound than the sawtooth (it only contains odd
harmonics) but none the less, its rich sound (notably in low frequencies) can be used for
sub-bass sounds that comes out well in the mix (the square oscillator is often set an
octave below the sawtooth), wood sounds (clarinet, if the square signal is a little
filtered), etc.
-
PWM
(
P
ulse
W
idth
M
odulation) is a setting that allows you to modify the waveform cycle
(or wave length). This can be done manually with the help of a knob [PW] or by
modulation (with an envelope or LFO). This pulse width variation translates to a spectrum
modification, resembling a waveform change.