Filters
Governed by: docs/design/specs/2026-07-15-plugin-catalog-tiered-packaging.md
51 plugins, 27 of them cleared to run on the console's own audio thread. Figures are at 96 kHz; the columns are explained on the catalog index. Sorted by hosting verdict, then by name.
1 of them declare no LV2 category at all and are filed here from their own name or description — our reading, not the plugin's claim.
| Plugin | Package | Host | Latency at 96 kHz | Class | Cost at 96 kHz | 44.1 / 48 / 96 / 192 | Certified | Note |
|---|---|---|---|---|---|---|---|---|
| C* AutoFilter | caps-lv2 | suitable | 0 ms | zero | 0.09 % | ok / ok / ok / ok | yes | Functional oracle verified at 48/96 kHz, not yet re-run at the rig's 192 kHz. |
| Capacitor | lv2-airwindows | suitable | 0 ms | zero | 0.24 % | ok / ok / ok / ok | yes | Extra — the original Capacitor lowpass/highpass; superseded by Capacitor2. |
| Capacitor2 | lv2-airwindows | suitable | 0 ms | zero | 0.26 % | ok / ok / ok / ok | yes | Recommended — the author's starter-kit filter (Capacitor with nonlinearity). |
| Comb Filter | lv2-swh-plugins | suitable | 0 ms | zero | 0.05 % | ok / ok / ok / ok | yes | |
| DC Offset Remover | lv2-swh-plugins | suitable | 0 ms | zero | 0.04 % | ok / ok / ok / ok | yes | |
| Distance2 | lv2-airwindows | suitable | 0 ms | zero | 0.40 % | ok / ok / ok / ok | yes | Not recommended — emits DC with no input: a constant -57.1 dBFS offset on pure silence at defaults, so an idle channel with it racked puts DC on the bus. |
| GxAutoWah | lv2-guitarix-plugins | suitable | 0 ms | zero | 0.13 % | ok / ok / ok / ok | yes | |
| GxHogsFoot | lv2-guitarix-plugins | suitable | 0 ms | zero | 0.05 % | ok / ok / ok / ok | yes | |
| GxMole | lv2-guitarix-plugins | suitable | 0 ms | zero | 0.05 % | ok / ok / ok / ok | yes | |
| GxRangeMaster | lv2-guitarix-plugins | suitable | 0 ms | zero | 0.07 % | ok / ok / ok / ok | yes | |
| GxWah | lv2-guitarix-plugins | suitable | 0 ms | zero | 0.04 % | ok / ok / ok / ok | yes | |
| Hypersonic | lv2-airwindows | suitable | 0 ms | zero | 0.27 % | ok / ok / ok / ok | yes | Extra — ultrasonic lowpass that does NOTHING at 48 kHz (0.00 dB to 23 kHz); acts only at 96 k and above. |
| Infrasonic | lv2-airwindows | suitable | 0 ms | zero | 0.28 % | ok / ok / ok / ok | yes | Extra — steep subsonic highpass. |
| Karaoke | lv2-swh-plugins | suitable | 0 ms | zero | 0.03 % | ok / ok / ok / ok | yes | |
| MDA Vocoder | lv2-mdala-plugins | suitable | 0 ms | zero | 0.13 % | ok / ok / ok / ok | yes | |
| PhaseNudge | lv2-airwindows | suitable | 0 ms | zero | 0.34 % | ok / ok / ok / ok | yes | Not recommended — at its DEFAULT (0.0) it is not an allpass: +1.6 dB at 10 kHz, +4.2 at 15 kHz, +8.6 dB at 20 kHz. |
| SideDull | lv2-airwindows | suitable | 0 ms | zero | 0.18 % | ok / ok / ok / ok | yes | Extra — side-channel lowpass utility. |
| Sidepass | lv2-airwindows | suitable | 0 ms | zero | 0.18 % | ok / ok / ok / ok | yes | Extra — side-channel highpass utility. |
| SlewOnly | lv2-airwindows | suitable | 0 ms | zero | 0.03 % | ok / ok / ok / ok | yes | Extra — mix-check tool that outputs only the slew component (+10.2 dB at defaults). |
| State Variable Filter | lv2-swh-plugins | suitable | 0 ms | zero | 0.21 % | ok / ok / ok / ok | yes | |
| Ultrasonic | lv2-airwindows | suitable | 0 ms | zero | 0.28 % | ok / ok / ok / ok | yes | Extra — steep ultrasonic lowpass that acts at 48 k (-3 dB at 20 kHz, -62 dB at 22 kHz); a pre-nonlinearity tool with a 1-frame delay at 192 k. |
| UltrasonicLite | lv2-airwindows | suitable | 0 ms | zero | 0.19 % | ok / ok / ok / ok | yes | Extra — gentle ultrasonic lowpass (-1.2 dB at 20 kHz at 48 k). |
| UltrasonicMed | lv2-airwindows | suitable | 0 ms | zero | 0.20 % | ok / ok / ok / ok | yes | Extra — medium ultrasonic lowpass (-4.2 dB at 20 kHz at 48 k). |
| Wolfbot | lv2-airwindows | suitable | 0 ms | zero | 0.47 % | ok / ok / ok / ok | yes | Extra — bass-synth-ish distortion oddity, -6.2 dB at defaults. |
| XBandpass | lv2-airwindows | suitable | 0 ms | zero | 0.27 % | ok / ok / ok / ok | yes | Extra — 'distorted digital' bandpass, -12.4 dB at defaults. |
| XLowpass | lv2-airwindows | suitable | 0 ms | zero | 0.28 % | ok / ok / ok / ok | yes | Extra — distorted lowpass, -13.2 dB at defaults. |
| XRegion | lv2-airwindows | suitable | 0 ms | zero | 0.35 % | ok / ok / ok / ok | yes | Extra — distorted region filter, -13.1 dB at defaults. |
| 4 x 4 pole allpass | lv2-swh-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.11 % | dies / dies / blast / ok | no | |
| Calf Emphasis | lv2-calf-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.28 % | ok / ok / ok / blast | no | |
| Calf Envelope Filter | lv2-calf-plugins | unknown — not yet racked and unracked a thousand times | 0 ms | zero | 0.71 % | ok / ok / ok / ok | no | |
| Calf Filter | lv2-calf-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.16 % | ok / ok / blast / blast | no | |
| Calf Filterclavier | lv2-calf-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.16 % | ok / ok / ok / blast | no | |
| Comb Splitter | lv2-swh-plugins | unknown — not yet racked and unracked a thousand times | 0 ms | zero | 0.05 % | ok / ok / ok / ok | no | |
| GLAME Butterworth Highpass | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.06 % | — / — / — / — | no | |
| GLAME Butterworth Lowpass | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.06 % | — / — / — / — | no | GLAME Butterworth Lowpass — measured ~98.81 ms round-trip. |
| Glame Bandpass Analog Filter | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.06 % | — / — / — / — | no | |
| Glame Bandpass Filter | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.09 % | — / — / — / — | no | |
| Glame Butterworth X-over Filter | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.07 % | — / — / — / — | no | Glame Butterworth X-over Filter — measured ~98.81 ms round-trip, same family/cause as buttlow_iir above. |
| Glame Highpass Filter | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.07 % | — / — / — / — | no | |
| Glame Lowpass Filter | lv2-swh-plugins | unknown — stability never measured | 0 ms | zero | 0.07 % | — / — / — / — | no | |
| Hermes Filter | lv2-swh-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.28 % | dies / dies / dies / ok | no | |
| LS Filter | lv2-swh-plugins | unknown — not soaked at every rate | — | unknown | 0.10 % | ok / ok / dies / dies | no | |
| MDA RezFilter | lv2-mdala-plugins | unknown — not soaked at every rate | 0 ms | zero | 0.10 % | dies / dies / dies / dies | no | |
| MDA TalkBox | lv2-mdala-plugins | unknown — latency never measured | — | unknown | 0.28 % | ok / ok / ok / ok | yes | |
| SubsOnly | lv2-airwindows | unknown — reports a latency it does not keep | 3.906 ms | low | 0.64 % | ok / ok / ok / ok | yes | Not recommended — mix-check tool that passes only the subs (rejects 1 kHz by 41.7 dB), 3.7 ms of group delay with no latency port, and a 61x denormal cost blow-up in silence unless the host sets FTZ/DAZ (mod-host does). |
| Bankstown | lv2-bankstown | unsuitable — allocates, locks or calls the system inside the audio callback | 0 ms | zero | 0.21 % | ok / ok / ok / ok | no | |
| Calf Vocoder | lv2-calf-plugins | unsuitable — costs more of a core than one insert may | — | unknown | 2.86 % | ok / ok / ok / ok | no | |
| Gx Tape Stereo | lv2-guitarix-plugins | unsuitable — costs more of a core than one insert may | 0.010 ms | low | 5.65 % | ok / ok / ok / dies | no | |
| GxTape | lv2-guitarix-plugins | unsuitable — costs more of a core than one insert may | 0.010 ms | low | 2.88 % | ok / ok / ok / ok | yes | |
| Tal-Filter | DISTRHO-Ports | unsuitable — allocates, locks or calls the system inside the audio callback | — | unknown | — | ok / ok / ok / ok | no | |
| Tal-Filter-2 | DISTRHO-Ports | unsuitable — allocates, locks or calls the system inside the audio callback | 0.031 ms | low | 1.32 % | ok / ok / ok / ok | no |