adsrFilter
Key Features
- ADSR envelope can modulate filter frequency, bandwidth, and the filter mix
- Switchable low-pass, high-pass, and band-pass filter modes
- Unique envelope up/down mode for contrasting filter movement
- Volume compensation can direct the crescendo to the left, right, or both channels
- Visual feedback shows the current modulated parameter value
- Factory presets target uplifting sweeps, glissando effects, and octave-based bandwidth movement
- Version 1.1 adds mouse-wheel parameter changes and a VST3 build
Description
adsrFilter is a Windows filter effect that uses an ADSR envelope to move filter frequency, bandwidth, and the wet/dry mix. It provides low-pass, high-pass, and band-pass modes, making it a compact way to turn sustained audio into shaped sweeps, rises, and more percussive filter motion.
The envelope has a dedicated up/down mode, while volume compensation can place its crescendo toward the left channel, right channel, or both. A visual display shows the modulated value, so it is easier to connect a setting change with the movement you hear.
Its supplied presets cover uplifting sweeps, glissando-style movement, and bandwidth changes by octaves. A MIDI reset button and keyboard value entry support quick repeatable setups, and the current 1.1 update adds mouse-wheel adjustment plus a VST3 version.
This is a focused creative filter rather than a broad multi-effect suite. It suits Windows producers who want envelope-driven movement on synths, basses, drums, or sustained samples without a large modulation environment, but its Windows-only format support is an important compatibility limit.
Frequently Asked Questions
What does adsrFilter modulate?
The ADSR envelope can modulate the filter frequency, bandwidth, and filter mix. This makes it useful for movement that follows a programmed envelope instead of a static cutoff setting.
Which filter modes are included?
The developer lists low-pass, high-pass, and band-pass modes. The same filter section also includes bandwidth and mix controls.
What is the up/down mode?
SaschArt lists a unique ADSR up/down mode as part of the envelope section. It is intended to provide alternate directions of envelope-driven filter movement.
Does adsrFilter work on macOS?
The official requirements list a VST host and Windows 32- or 64-bit. The current page does not list a macOS build, so Mac users should choose a different filter effect.
