OTTX

OTTX is a multiband dynamics processor combining aggressive upward and downward compressionwith per-band waveshaping. Its compressor is a faithful recreation of the classic three-band upward/downward design, checked against it sample by sample. It splits your signal into three bands (Low, Mid, High), then applies independent upward and downward compression to each band with optional Inflator-style waveshaping for added harmonic density and loudness. Features include two waveshaper curves (Modelled and Smooth), a mix knob for parallel compression, Smart Clip for 0 dB ceiling limiting, sidechain high-pass filtering, a smooth detection mode, a Recon switch that chooses between the classic split-and-sum reconstruction and a phase-clean one, and per-band gain reduction metering.

Features

• 3-Band Upward & Downward Compression: Independent upward compression (brings up quiet parts) and downward compression (pushes down loud parts) per band, each scalable from 0–200% for subtle dynamics control to extreme squashing. A master Depth control (0–100%) sets the overall amount.
• Per-Band Inflator Waveshaping: Adds harmonic density and perceived loudness to each band without traditional clipping — a powerful alternative to standard saturation. Choose Modelled, which gets harder as the knob goes up for more harmonic colour, or Smooth, one fixed, gentle curve that is more transparent, with about 26 dB less aliasing.
• Adjustable Crossover: Two crossover points split the signal into three bands (Low/Mid: 28–148 Hz, Mid/High: 2000–3000 Hz).
• Recon Switch: Stadium splits the audio through the crossovers and sums it back, magnitude-flat but phase-rotated, for the classic sound. Tight applies the band gains as shelves and never splits the audio, so there is no phase rotation and Mix 0 returns the input untouched.
• Per-Band Threshold, Ratio & Gain: Independent threshold offset (0–200%), downward compression ratio (0–200%), and makeup gain (-40 to +6 dB) per band for precise control over the dynamics of each frequency range.
• Parallel Compression Mix: Wet/dry blend (0–100%) lets you mix processed and dry signal for parallel compression techniques — keeping transients intact while adding density.
• Smart Clip 0dB: Soft-clipping followed by hard-limiting at 0 dB prevents output from exceeding digital full-scale, keeping your signal clean even when pushing hard.
• Sidechain High-Pass Filter: Filters low frequencies (0–200 Hz) from the compressor's detection circuit to prevent sub-bass pumping without affecting the audio path.
• Comp Smooth: A slower detector with a soft knee, so the gain moves more gently at the same loudness and kick and snare attacks come through — ideal for mastering or less aggressive applications.
• Global Attack & Release Scaling: Scale attack and release times for all bands simultaneously (0–200%) for quick overall dynamics adjustments.