Fixes HI and LO audio behavior with strong filter contours, and adds PANEL hide/show for the lower controls.
Watch and hear it: https://youtu.be/QLfwGqYg4wU
Install
| Computer | Download |
|---|---|
| macOS 11 or later, Apple silicon or Intel | CA-72-0.2.2-macOS.pkg (signed and notarised; VST3, CLAP and Audio Unit)
|
| Windows 10 or 11, 64-bit | CA-72-0.2.2-Windows-setup.exe
|
| Windows 10 or 11, 64-bit, without an installer | CA-72-0.2.2-Windows-x86_64.zip: the VST3 and the CLAP to copy by hand (its README.txt says where)
|
| Linux, x86-64 (Ubuntu 22.04, Debian 12, Fedora 36 or later, or Arch) | CA-72-0.2.2-Linux-x86_64.tar.gz: unpack it and run ./install.sh
|
| 0.1's factory presets, for any of them | CA-72-0.2.2-0.1-presets.zip: copy its presets into your presets folder (its README.txt says where)
|
Close your host, run the installer (it installs over earlier versions), then rescan your host's plug-ins. The Windows installer is not yet signed: the first time, Windows says "Windows protected your PC"; click More info, then Run anyway.
Projects saved with 0.1 open in 0.2.2's calibration. The knobs whose behaviour the calibration changed are moved to where they give what they gave, and LEVEL is set to -0.5 dB, so that most sounds come within a decibel of how they played; what the calibration changed in the circuit's own parts can still be heard. Presets you saved yourself with 0.1 are not translated.
SHA256SUMS.txt lists the checksums of the installers, the Windows ZIP, the 0.1 presets and the sources archive. THIRD-PARTY-NOTICES.txt holds the licences of the works built into the plug-ins; CA-72-0.2.2-git-sources.tar.gz holds the sources of the few crates the plug-ins take from git repositories rather than crates.io. The CA-72's own source is this repository at the tag v0.2.2.
In this release
- HI and LO audio fix. Corrects harsh transitions and unstable behavior with strong filter contours. HI now runs its filter at 4× and LO at 8×, with bounded nonlinear solving and cutoff saturation. Both modes use more CPU and their renders change; ULTRA is unchanged.
- PANEL hide/show. Hide the lower controls while keeping the synth and preset rail visible. The choice is saved with the instance; presets temporarily reveal the lower view. Native host resizing and repaint behavior are covered by regression checks.
Plug-in and parameter identifiers, and the preset format, are unchanged. This release contains the audio correction and PANEL feature with their supporting fixes; release packages contain VST3 and CLAP, plus Audio Unit on macOS.
Free software under the GNU General Public License, version 3 or later. Copyright © 2026 Idle Foundry Ltd.