Radian is a unique percussion synthesizer that emulates the sound of a two-dimensional circular membrane using a bank of harmonic oscillators. It can generate up to 256 partials, capturing the complex vibrations of an ideal drumhead. The model also includes air resonance and a basic rim resonance composed of eight partials, adding depth and realism to the sound.

While real acoustic drums have diverse and intricate timbres, Radian focuses on producing sounds reminiscent of single membrane percussion instruments with a simplified and generalized approach. This abstraction makes it a creative tool for exploring unique percussive textures rather than replicating specific drum sounds. Its straightforward parameter set invites experimentation with distinctive tonal qualities.

Radian operates as a mono-timbral instrument without keyboard tracking, using pitch bend controls to simulate changes in striking position on the membrane. This design choice emphasizes expressive performance within its focused sonic palette. The plugin is available as a free download, offering musicians and producers an innovative way to expand their percussion sound library.