Oxidex is an analog tape saturation plugin for macOS. It models the behavior of real magnetic tape — hysteresis, head-bump resonance, wow and flutter, and spectral aging — so tracks take on genuine tape character rather than a static EQ curve. A single Wear knob ages the tape from a pristine studio reel to a crinkled cassette.

Saturation engine:

• Magnetic hysteresis model with frequency-dependent behavior.
• Oversampled S-curve saturation (2×, 4×, 8×), anti-aliased.
• Three tape speeds — 7.5, 15 and 30 IPS.
• Asymmetric clipping for natural even-harmonic content.

Tone and texture:

• Head Bump — resonant low-end lift that tracks tape speed.
• Tilt EQ — dark to bright on a single knob.
• Wear — wow and flutter, high-frequency loss and dropouts, pristine to worn.
• Tape Hiss and Vinyl Mode for period-correct noise.

Performance effects:

• Tape Stop / Start — one-button slowdown and spin-up.
• Motor Pressure — momentary flange build with a drive boost.
• Tape Speed Shift — smooth glide between speeds.

Workflow:

• Auto-Gain matching for honest A/B comparison.
• Dry/Wet for parallel saturation, output trim with a safety limiter.
• Flux Meter that responds to saturation.
• 22 factory presets, preset save/load.
• Resizable interface.

Formats: AU, VST3, and Standalone — Universal Binary (Apple Silicon + Intel), code-signed and notarized by Apple, so it installs cleanly on macOS. Pay-what-you-want, from $5.

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