Surge

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Surge is a subtractive hybrid synthesizer.
Each patch contain two scenes which are separate instances of the entire synthesis engine (except effects) that can be used for layering or split patches. Features a quick category-based patch-browser for the 1010 factory sound patches.

3 oscillators/voice.
8 versatile oscillator algorithms: Classic, Sine, Wavetable (183), Window, FM2, FM3, S/H Noise and Audio-input.
The classic oscillator is a morphable pulse/saw/dualsaw oscillator with a sub-oscillator and self-sync.
The FM2/FM3 oscillators consists of a 1 carrier with 2/3 modulators and various options.
Most algorithms (except FM2, FM3, Sine and Audio-input) offer up to 16-voice unison at the oscillator level.
Oscillator FM/ringmodulation.
Most oscillator algorithms (except FM2/FM3) are strictly band-limited yet still cover the entire audible spectrum, delivering a clear punchy yet clean sound.
Noise generator with variable spectrum.

Two filter-units with arrangeable in 8 different configurations.
Feedback loop (number of variations inside the parenthesis).
Available filter-algorithms: LP12 (3), LP24 (3), LP24L (1-4 poles), HP12 (3), HP24 (3), BP (4), Notch (2), Comb (4), S&H.
Filters can self-oscillate (with excitation) and respond amazingly fast to cutoff frequency changes.
Waveshaper (5 shapes).

12 LFO-units available to each voice (6 are running on each voice and 6 are shared for the scene).
DAHDSR envelope generators on every LFO-unit.
7 deformable LFO-waveforms + 1 drawable/stepsequencer waveform.
LFO1 allows envelope retriggering when used as stepsequencer.
Extremely fast and flexible modulation routing. Almost every continuous parameter can be modulated.

8 effect units arranged as 2 inserts/scene, 2 sends and 2 master effects.
10 top-quality algorithms: Delay, Reverb, Chorus, Phaser, EQ, Distortion, Conditioner (EQ, stereo-image control & limiter), Rotary speaker, Frequency shifter, Vocoder.