Quetzalcoatl - Harmonic Vector Synthesizer

Quetzalcoatl is an 8 layer sample playback plugin (VST/AudioUnit) for Mac OS, Windows & Linux (support currently limited to Ubuntu 22+). It performs traditional rompler duties, excelling at pads and evolving textures (or whatever else you fancy), but can also be used for melodic and sequenced material thanks to its comprehensive modulation/sequencing options. In this sense, you can think of it as a kind left-field groovebox.

Quetzalcoatl is inspired by the Aztec deity that shares its name. Quetzalcoatl (known to the Maya as Kukulkan), represents wisdom, art and the wind.

Quetzalcoatl is built with HISE, an open source framework for sample based instruments.

It features:

• An 8 stage crossfading "oscillator".
• AIF, WAV, FLAC and SFZ import.
• Pitch controls for each stage with harmonic & scale modes.
• Pan per stage.
• Multistage, multimode filter with lowpass, highpass, bandpass allpass, & wavefolder modes.
• 8 monophonic modulation sources.
• 8 Polyphonic modulation sources.
• 8 stage delay FX.
• A large and diverse sound library.

New in v0.8:

• 20-40% performance improvement.
• No more factory content to install.
• Dedicated wavefolder module.
• Wavefolder available pre & post filter.
• Modulation control of wavefolder mix.
• Monophonic modulators get LFO modes and waveshaping.
• Many UI improvements.
• Sample loading is now done from the front panel.
• Amp envelope hold parameter.
• Layer edit and global edit (wavetable only) section.
• Removed FX.
• Complete overhaul of sound library.
• Factory waves now embedded in the plugin.
• Nuked older presets.
• Master transpose.
• Wavetable mode.