East Coast
This is the traditional and most common form of synthesis, created by Robert Moog. East Coast synthesis starts with an oscillator full of harmonic content and uses a filter to shape and subtract from it to create new timbres.
GCS Spectral Synthesizer
Hear Your Art. A Visual Canvas For Sound.
Fully-functional. No credit card required for trial.
A New Canvas For Sound Design
The GCS Spectral Synthesizer is an additive spectral synthesizer. Unlike traditional subtractive synthesizers, its core is the Spectral Canvas, where you can directly draw the harmonics of your patch, paint spectrally-shaped noise, and sculpt your timbre with a brush.
In addition to manually painting harmonics, you can create new sounds by dragging and dropping audio samples or even image files to create playable, evolving instruments. A standard subtractive synth engine is also included, allowing more traditional sounds as well. While its engine is digital, most of its elements have analog modeling, offering everything from subtle tape warble and pitch drift to rich saturation for sounds that are more organic and less sterile than typical digital synths.
See It In Action
At a Glance
Universal Resynthesis
Clone the timbral DNA of any audio file or image. Drag-and-drop a sample or a photograph to create a playable, interactive instrument in seconds.
Generative Sound Design
Instantly overcome creative blocks. Use powerful one-click **Pattern** and **Sacred Geometry** generators to create complex, inspiring new spectrograms from a blank slate.
The Spectral Canvas
Visually design your sound. Intuitively draw harmonics, paint spectrally-shaped noise, and erase with a powerful brush tool. A dedicated **Undo** function lets you experiment freely.
Deep Analog Character
Go beyond simple warmth. Dial in everything from subtle pitch drift and tape warble to saturated delay feedback and simulated **tape dropouts**.
Classic Harmonic Voicing
Shape your sound with fundamental synth controls. Instantly switch between "All", "Even", "Odd", or "Inharmonic" mode to sculpt your timbre at its core.
Seamless MIDI Learn
Map any parameter to your hardware controller in seconds. Click the MIDI button, touch a knob, and move your controller—it's that simple.
A New World of Sound Awaits
From its unique image-to-sound synthesis and generative engines to its deep analog character and intuitive workflow, the GCS Spectral Synthesizer is a bottomless source of inspiration. We highly recommend downloading the 10-day, fully-functional free trial to ensure it performs well on your machine.
Available for macOS & Windows (VST3, AU, AAX). Works in Ableton, Logic, Pro Tools, FL Studio & more.