Harmony Engine is a real-time harmony generator designed to transform a single vocal or monophonic instrument track into rich, professional-quality harmony arrangements. Ideal for arrangers, songwriters, and producers, it offers flexible control modes ranging from fully automatic harmonization to detailed individual note editing. This adaptability allows users to effortlessly create backup vocals or intricate harmony parts that match their creative vision.

The plugin features four independent harmony voices, each with adjustable vocal character, vibrato, and pan settings, enabling anything from natural harmonies to dramatic effects. Its unique Choir Vocal Multiplier expands each harmony voice into multiple unison voices, producing lush choir-like textures from a single source. Harmony Engine also includes humanization controls to add subtle variations, ensuring realistic performances that avoid robotic precision.

Harmony Engine supports various harmony control options, including fixed intervals, scale degrees, chord names, and real-time MIDI input, allowing seamless integration into any workflow. Additional features like a Freeze function create innovative vocal effects by locking pitch or formant articulation. The plugin is compatible with key detection tools to simplify setting the correct harmonic context, while multi-channel outputs enable detailed mixing and processing of each harmony voice independently.