EvilTwin vs Harmonitron

Evil Twin is a creative stereo processing effect designed to add width, motion, depth, and unexpected character to your sound. Built for musicians, producers, sound designers, and experimental artists, Evil Twin combines stereo enhancement with controlled instability, allowing you to move from subtle spatial polish to dramatic transformations with a simple and focused interface. Whether you're widening a synth, adding movement to a pad, creating animated textures, or pushing sounds into unfamiliar territory, Evil Twin encourages exploration while remaining fast and musical to use. Features: • Creative stereo enhancement and widening • Dynamic movement and spatial animation • Subtle-to-extreme sound shaping possibilities • Simple, performance-focused interface • AUv3 support for iPad and Mac • Works in compatible hosts including GarageBand, Logic Pro, AUM, Cubasis, and Audiobus Evil Twin is designed for creators who enjoy discovering new sounds rather than following predictable presets. Sometimes the best results happen when things drift a little off course. Basic usage guide at folinaaudio.com.

Harmonitron is a harmonic tremolo. The rich, swirling amp "vibrato" made famous by early-1960s brownface amplifiers. A normal tremolo just pulses your volume up and down. A harmonic tremolo goes deeper: it splits your sound into a low band and a high band, then sweeps them in OPPOSITE phase. As the lows swell, the highs dip and back again. That contrary motion is what gives Harmonitron its lush, watery, almost phaser-like character that an ordinary tremolo can't reach. Turn the Voice control and the effect morphs smoothly from a classic in-phase tremolo all the way to a full harmonic swirl. Drop it on guitars, keys, synths, pads, drums, or a whole mix. Standalone, or as an Audio Unit (AUv3) effect inside GarageBand, AUM, Logic, and other hosts. THE SOUND • True harmonic tremolo: anti-phase modulation of a low and high band • Voice: morph continuously from classic tremolo to full harmonic swirl • Split & Tilt: place the crossover and balance the two bands • Tube Drive and tone shaping for warmth and grit MOVEMENT • Rate from a slow tide to a fast flutter, shown in BPM • LFO Shape: sine, triangle, square, and ramp with adjustable edge Slope • Tempo Sync that locks to your project and lands on the beat, with musical note divisions from 1/1 to 1/32 (dotted and triplet) • Stereo Spread for auto-pan and rotary-style width HANDS-ON • A living hero orb whose two halves breathe in opposite phase — drag it to set Depth, tap to bypass • Grouped, color-coded controls: Motion, Sync, Harmonic, Stereo, Drive, Output • Factory presets: Brownface, Rotary Swirl, Slow Tide, Sync Chop, Wide Harmonic and more — plus your own saved presets PLUGIN & STANDALONE • Full AUv3 audio-effect support with host presets and parameter automation • Runs on iPhone, iPad, and Mac • Standalone mode with a built-in demo pad, live microphone input, or import a song and export the processed result