Filter
A resonant low-pass filter for shaping tone.
PreviewNot built for macOS, Windows or Linux
AvailableEffect
Auto Filter
A low-pass filter driven by an LFO.
Engine preview
Not built for macOS, Windows or Linux
About
A low-pass filter swept by a free-running LFO, between a base frequency and a ceiling set in octaves above it. The rhythmic wah that does not care what you play.
Build evidence
Every row below is a recorded build row or the recorded absence of one. Nothing here is inferred from what this module is meant to support.
- Module
- music.codex.auto-filter v1.0.0
- Built at
- no recorded row carries a build time; the browser lanes record none
- Closure hash
- not a Processor — no lowering closure
- Toolchain
- scriptc 64acce1ae3b8…
- moduleToolchainDist c621ffab721d…
- pluginShellKitRuntime bca003784692…
- faceShellGeneration 8533207ab81f…
- uiPreservation cd28dbd7e3d6…
- packagerVersion 3
| Format | Result | Download |
|---|---|---|
| Browser package (JS) | Not built by this module's lane this module has no release.json; its packager lane records no browser program rows | Not built for the browser |
| Browser package (WASM) | Not built by this module's lane this module has no release.json; its packager lane records no browser program rows | Not built for the browser |
| VST3 | Not built no recorded artifact row for vst3; native-lane-report.json is absent or records no vst3 row for this module | Not built for macOS, Windows or Linux |
| Audio Unit | Not built no recorded artifact row for au; native-lane-report.json is absent or records no au row for this module | Not built for macOS |
| CLAP | Not built no recorded artifact row for clap; native-lane-report.json is absent or records no clap row for this module | Not built for macOS, Windows or Linux |
| Standalone app | Not built no recorded artifact row for standalone; native-lane-report.json is absent or records no standalone row for this module | Not built for macOS, Windows or Linux |
Parity
No lane recorded an artifact; there is no parity evidence.
Presets
Start from a named sound, then adjust the instrument to make it yours.
InitDefault
How it works.
One LFO sweeps one low-pass filter. The LFO runs between the base frequency and the base frequency raised by Octaves, and Depth scales how much of that span it actually covers, so Base Freq sets where the sweep starts, Octaves sets how far it goes, and Depth sets how much of that distance is used.
The LFO is free-running: it is on its own clock and keeps cycling whether or not anything is playing. That is the entire distinction between this module and Auto Wah, which derives its motion from the input's level instead. Same filter, different thing moving it, and the two are not interchangeable in use.
The browser preview drives the filter's detune rather than its frequency, and that one choice is what makes the sweep musical. Detune is measured in cents, so a plain linear LFO on it produces an exponential glide, the same number of octaves per cycle whether the base is 50 Hz or 1500, with no shaping node and nothing recomputed per block. The LFO's gain is depth multiplied by octaves multiplied by 600, which is exactly the swing a unit sine needs to cover the named span peak to peak.
