Surge - XT

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A Sound Designers Dream

Featuring many synthesis techniques, a great selection of filters, a flexible modulation engine, a smorgasbord of effects, and modern features like MPE and microtuning.

OSCILLATORS

• 3 oscillators per scene, with 12 versatile oscillator algorithms: Classic, Modern, Wavetable, Window, Sine, FM2, FM3, String, Twist, Alias, S&H Noise and Audio Input.
  
• Classic oscillator is a morphable pulse/saw/dual saw oscillator with a sub-oscillator and hard sync.
  
• Modern oscillator is a mixable saw/pulse/triangle oscillator with an optional sub-oscillator mode for triangle (which can also change to sine or square) and hard sync.
  
• FM2/FM3 oscillators consist of a carrier and 2 or 3 modulators and various options.
  
• String oscillator uses two filtered waveguides to emulate plucked or bowed string sounds.
  
• Twist oscillator is based on a very famous Eurorack macro oscillator, and it offers a myriad of synthesis options in a very simple and quick way.
  
• Most algorithms (except FM2, FM3, Twist and Audio Input) offer up to 16-voice unison at the oscillator level.
  
• Oscillator FM in 3 different configurations and ring modulation between oscillators 1-2 and 2-3.
  
• Most oscillator algorithms (except FM2, FM3, Sine and Alias) are strictly band-limited, yet still cover the entire audible spectrum, delivering a clear, punchy and clean sound.
  

• Noise generator with variable spectrum (available directly in the oscillator mixer).

FILTER BLOCK

• Two filter units in 8 different configurations.
  
• Feedback loop available in 7 of those configurations.
  
• Available filter algorithms: Lowpass (12 and 24 dB/oct, each with 3 variations), Legacy Ladder Lowpass (6-24 dB/oct), Vintage Ladder Lowpass (2 variations, each with and without gain compensation), Highpass (12 and 24 dB/oct, each with 3 variations), Bandpass (12 and 24 dB/oct, each with 3 variations), Notch (12 and 24 dB/oct, each with 2 variations), Allpass (3 variations), Comb (positive and negative), S&H.
  
• Open-source additions to our filter algorithms include: K35 and Diode Ladder filter types from Odin 2 synthesizer, 12 and 24 dB/oct multimode filters from OB-Xd, and weird but fascinating Cutoff Warp, Resonance Warp and Tri-Pole filters by Jatin Chowdhury!
  
• Filters can self-oscillate (with excitation) and respond amazingly fast to cutoff frequency changes.
  
• Waveshaper (43 shapes).
  

MODULATION

• 12 LFO units available, 6 are per voice and 6 are global for the whole scene.
  
• DAHDSR envelope generators on every LFO.
  
• LFO shapes consist of 7 deformable LFO waveforms, step sequencer, a fully-fledged multi-segment envelope generator (MSEG) with various curves and up to 128 nodes, and last but not the least - a formula modulator which utilizes Lua scripting language to provide completely custom modulator output.
  
• Voice LFOs allow envelope retriggering in step sequencer mode.
  
• Extremely fast and flexible modulation routing. Almost every continuous parameter can be modulated!
  

EFFECTS

16 effect units arranged as 4 inserts per scene, 4 sends and 4 master effects.

27 effect algorithms:

FILTERING:

• 3-band fully parametric EQ
  
• 11-band graphic EQ
  
• Exciter
  
• Resonator

DISTORTION:

• CHOW
  
• Distortion
  
• Neuron
  
• Tape
  
• Waveshaper
  

MANGLING:

• Combulator
  
• Frequency Shifter
  
• Nimbus
  
• Ring Modulator
  
• Treemonster
  
• Vocoder
  

MODULATION:

• Chorus
  
• Ensemble
  
• Flanger
  
• Phaser
  
• Rotary Speaker
  

TIME & SPACE:

• Delay
  
• Reverb 1
  
• Reverb 2
  
• Spring Reverb
  

MULTIEFFECTS:

• Airwindows (itself containing 56 effects!)
  
• Conditioner
  
• Mid-Side Tool
  

Synth Features

• 4 aliasing free Operators with classic TX waveforms
• 12 voices
• Drag-and-drop envelopes
• 8 classic FM algorithms with feedback on operator D
• Resonant filter with 24db/oct lowpass, highpass and bandpass
• Visualization of the resulting waveform for immediate editing response
• LFO syncable to host
• Runs on Windows (VST 2 and VST3) and Mac (AU, VST2 and VST3), 64 bit only 

Surge XT Plugin System Requirements