Whirl

Sinevibes Whirl is a barber-pole phaser that turns ordinary sounds into continuously rising or falling spectral motion. Built around a Bode frequency shifter with feedback, it creates peaks and notches that seem to sweep forever, with each cycle flowing into the next. Use it for gentle movement on pads, swirling synth textures, or strongly resonant filtering that brings individual harmonics forward while pushing others back. Up to three synchronized stages let you shape the intensity, while variable stereo phase offset adds control over the spatial character. The sweep can pass smoothly between downward and upward motion, and smoothed continuous parameters keep adjustments free of clicks. Whirl suits producers and sound designers looking for modulation beyond a conventional phaser. Its clear, colour-coded interface, built-in preset management, and window scaling up to 200% make it approachable for everyday sessions.