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User Manual

ManualsBrandsPropellerhead ManualsAudio SoftwareRecord 1.5 PC / MAC - AUDIO PRODUCTION SOFTWARE
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Table Of Contents
SUBTRACTOR SYNTHESIZER
(RECORD+REASON)
535
There are three Noise Generator parameters. These are as follows:
Phase Offset Modulation
A unique feature of the Subtractor oscillators is the ability to create an extra waveform within one oscillator, to offset
the
phase
of that extra waveform, and to modulate this phase offset. By subtracting or multiplying a waveform with a
phase offset copy of itself, very complex waveforms can be created. Sounds complicated? Well, the theory behind it
might be, but from a user perspective it is just a method of generating new waveforms from existing waveforms.
A seasoned synth programmer using Subtractor for the first time may wonder why the Subtractor oscillators (seem-
ingly) cannot provide the commonly used pulse waveform and the associated pulse width modulation (PWM). Or os-
cillator sync, another common feature in analog synthesizers. The simple answer is that Subtractor can easily create
pulse waveforms (with PWM) and oscillator sync-sounds, and a lot more besides, partly by the use of phase offset
modulation.
Each oscillator has it's own Phase knob and a selector button. The Phase knob is used to set the amount of phase
offset, and the selector switches between three modes:
• Waveform multiplication (x)
• Waveform subtraction (–)
• No phase offset modulation (o).
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Parameter
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Description
Noise Decay This controls how long it takes for the noise to fade out when you play a note. Note that this is inde-
pendent from the Amp Envelope Decay parameter, allowing you to mix a short “burst” of noise at the
very beginning of a sound, i.e. a pitched sound that uses oscillators together with noise.
Noise Color This parameter allows you to vary the character of the noise. If the knob is turned fully clockwise, pure
or “white” noise (where all frequencies are represented with equal energy) is generated. Turning the
knob anti-clockwise produces a gradually less bright sounding noise. Fully anti-clockwise the noise
produced is an earthquake-like low frequency rumble.
Level Controls the level of the Noise Generator.