One Slider

SWEEPER

DJ Filter Sweep

Download free Part of NULL JSFX 2.5: 113 plugins, free and open source (MIT). Easiest with NULL JSFX Hub.

Listen

The same music with the Next Room Muffle preset and without the plugin. Switch while it plays.

Controls

Amount0 to 100 — Bipolar sweep with 50 as open (bypass): toward 0 a low-pass closes from 20 kHz to 80 Hz, toward 100 a high-pass rises from 20 Hz to 8 kHz, with resonance growing away from the centre

Best uses

Build-ups and breakdowns
DJ-style transitions
Filter automation on loops
Thin out a part for an intro
Muffled "next room" effect

Properties

Input → TPT state-variable filter (low-pass below 50, high-pass above, Q 0.707 to 2.2) → Output. Exact bypass at 50, stereo channels processed independently, zero latency.

Formats

JSFXJSFX for REAPER, with REAPER's own sliders
GFXJSFX GFX for REAPER, with its own interface
VST3VST3 for any DAW
CLAPCLAP for any DAW

Factory presets

Next Room Muffle · Low Pass Breakdown · Warm Roll Off · Intro Thin Out · High Pass Build

In the FX chains and Rack presets

Build-Up

See every FX chain

Try it

Try it on orOS StudioAdd it to a track in your browser, with its own interface. Nothing to install.