OD Finesse: Spectral Resonance Processor by Tokyo Dawn Labs

Finesse uses minimum phase filtering to make spectral changes without disturbing the transients and phase relationships of the source material. Each of the three main controls, Depth, Timing and Guard, can be adjusted across frequency, so you decide where and how much processing applies.

Depth controls the intensity of the reduction, automatically trimming excessive resonances. Timing defines how smoothly that reduction behaves over time, and Guard protects spectral detail that the developer describes as musically favorable.

The ReTilt feature compensates for the spectral changes the processing introduces, so the original tonal balance and perceived loudness are preserved. Processing is also independent of input level, so settings carry over reliably between different tracks and mixes.

Jan Ohlhorst developed the plugin for his own mastering work, and the design reflects that origin: a focus on transparent results rather than obvious coloration.