SMOOTH

SMOOTH by KERN Audio is a dynamic resonance suppressor that targets the harsh, ringing frequencies your EQ often misses. It splits the spectrum into 40 ERB bands that mirror how human hearing actually resolves frequency, then rides each band independently—acting only when a resonance flares up. Two character modes let you handle sustained harshness with Resonance mode or percussive spikes with Transient mode, and you can switch or blend between them. Mid/side routing means you can tame center-panned vocals without disturbing the stereo field, while the real-time spectral display shows exactly what’s being reduced. With 4096-point FFT analysis, zero-delay feedback filters, and under 3% CPU usage, it’s built for everyday mixing. It suits hobby producers working in FL Studio, Ableton, or Logic who want transparent control over problematic resonances in vocals, drums, and full mixes.