Downloads

Get the latest AL-1 and AC-1 installers for your platform.

AL-1 (macOS)

Universal macOS installer (Apple Silicon + Intel).

AL-1 (Windows)

Windows installer (ARM + Intel).

AL-1 Quick Guide

Quick start guide (PDF).

AC-1 (macOS)

Universal macOS installer (Apple Silicon + Intel).

AC-1 (Windows)

Windows installer (ARM + Intel).

AC-1 Quick Guide

Quick start guide for AC-1 (PDF).

Changelog

v0.1.0-alpha.8 (2025-11-16)

A precision release that locks in oversampling alignment, stabilizes intersample behavior, and moves the maximizer and stereo linking fully into the oversampled domain—while adding practical ref-level presets and streamlined licensing.

  • Licensing and activation: integrates licensing for streamlined activation and more reliable trial and full-license management across machines.
  • Maximizer in the oversampled domain: moves the maximizer stage fully into the oversampled path for tighter intersample control and more confident loudness pushes at the ceiling.
  • Stereo linking in the oversampled domain: stereo linking is now computed at the oversampled rate for a more stable stereo image and more precise channel coupling at high levels.
  • Timing alignment: corrects fractional-sample misalignment in the oversampling chain; improves latency reporting and guarantees coherent transients with no change to the frequency response.
  • Finer gain staging: adds reference level presets from 0 to −18 dB in 1 dB steps, with a default makeup gain of 1× and fine-resolution control.
  • UX polish: refines layout, tooltips, and small visual details to keep the interface focused on what matters most—meters, levels, and the music.

v0.1.0-alpha.7 (2025-11-06)

A major visual and workflow update that introduces a focused maximizer section, full VU/peak/crest metering, and a cleaner oversampling experience—wrapped in a redesigned UI tuned for fast, confident mastering moves.

  • New GUI: complete visual redesign of AL‑1 with a clearer layout, improved hierarchy, and a focus on key controls and metering.
  • Maximizer section: introduces a dedicated maximizer; adds an RMS-oriented maximizer option for a more “record-like” loudness feel when you want level that moves with the music..
  • Comprehensive metering: adds VU, peak, and crest-factor meters so you can balance tone, punch, and headroom without reaching for extra tools.
  • Oversampling workflow: introduces a dedicated oversampling factor control and consolidates all oversampling options into a single combo box for quick, predictable auditioning.
  • Smarter oversampling latency: computes oversampling latency analytically and keeps it aligned with unity-compensated LUFS metering for more predictable timing in your DAW.
  • Snapshot workflow: adds a snapshot copy button so you can duplicate settings between A/B slots without losing your current tweak.

v0.1.0-alpha.6 (2025-10-23)

This release focuses on polish and performance: faster and smarter A/B switching, improved latency, intersample‑safe limiting, lower CPU use, and a smoother, more reliable editing experience across all platforms.

  • Smarter snapshot switching: A/B switching is now instant when possible, with seamless transitions and no audible gaps unless latency changes are required.
  • Improved latency handling: AL‑1 now reports latency to the host immediately upon activation, preventing prefixed silence when oversampling is enabled.
  • Enhanced consistency: Unity gain alignment is now perfectly matched across oversampling settings, ensuring identical loudness when toggling OS on/off.
  • Safer limiting: improved internal peak detection for intersample safety and smoother, more stable gain‑reduction metering.
  • Performance boost: lower CPU usage under oversampling and improved efficiency during limiter processing.
  • Refined user input: text‑box edits on gain sliders now commit reliably without being interrupted by background updates.
  • Windows installer reliability: ensures old versions are correctly replaced during updates.
  • Overall stability: improved snapshot transitions, safer thread timing, and cleaner internal synchronization for a smoother experience across sessions.

v0.1.0-alpha.5 (2025-10-21)

A major refinement building on the best aspects of each of the previous alphas, alpha.5 is a landmark release for the AL-1. Alpha.5 introduces a contour section with an all new hybrid engine and smoothing control for an expanded sonic palette. Oversampling has been redesigned from the ground up for increased accuracy in both the frequency and time domains. LUFS metering, full host automation and full Windows 10 support added.

  • New Engine: adds "Hybrid" as the third limiter engine; unified attack mapping across modes. Hybrid combines the best of Discrete and Continuous engines, offering a musical middle ground.
  • Smoothing control: new DSP option that adjusts the gain reduction window for smoother dynamics; log‑mapped knob with fine low‑range precision; normalized 0..1 (0.1% steps). Fully persisted in state/snapshots with seamless legacy migration.
  • UI organization: introduces the “Contour” section that groups Engine → Shape → Smoothing; “Control Mode” is now “Engine,” and “Convergence is now “Smoothing.” Input/Output labels are bolded.
  • LUFS metering: adds integrated and short‑term loudness meters for mastering‑grade loudness control.
  • Host automation: all parameters are automatable across major DAWs. This introduces "click to reset" gestures.
  • Oversampling fidelity: updates the oversampling filters for cleaner transients and deterministic latency.
  • Platform support: adds full Windows 10 compatibility with identical sonic behavior and UI.
  • Stability & reliability: substantially hardens DSP teardown/thread‑safety and improves parameter save/snapshot/load robustness; fixes include ramp clamping under extreme settings, attack recomputation, link velocity defaulting, and sidechain detector gain behavior.
  • Quality assurance: adds a headless JUCE test runner and comprehensive suites covering state round‑trips, snapshots, timing tables, processing invariants, transitions, latency correctness, sidechain routing, unity‑gain behavior, and denormal safety.

v0.1.0-alpha.4 (2025-10-13)

A smarter, more precise, and more controlled version that refines dynamics feel, improves sonic precision, and enhances overall reliability.

BREAKING CHANGE: attack and release times have changed and cannot be mapped to legacy settings due to the new design as the math has been reworked. We recommend updating attack to "Brickwall" in existing sessions as it is the closest to the legacy 34ms setting. As of this version, all planned DSP features are now implemented, with ongoing refinements to follow.

  • Refined dynamics: introduces a new "Control Mode" option. "Discrete" (the default and original design) and "Continuous", offering sonic options for musical movement and precision over transient shaping.
  • Faster workflow: the "Type" knob has been renamed to "Shape" with "I" now called "Arc" and "II" called "S-Curve." "Mode" and "Shape" selectors are now toggle buttons with clearer labels. “Ext. Sidechain” is now “Ext. SC” for brevity.
  • Smarter time behavior: attack and release times are now more responsive and meaningful. The default attack time, “Brickwall,” offers instant, transparent limiting without setup.
  • Sharper fidelity: rebuilt oversampling filters using advanced FIR design for cleaner transients, reduced ringing, and improved phase accuracy. FIR tap selection was removed as the new design offers better performance and stability for all users.
  • Under the hood improvements: numerous refinements to consistency, test coverage, and configuration stability—resulting in a smoother experience overall.

v0.1.0-alpha.3 (2025-10-08)

A faster, tighter, and more stable version that improves the signature transient feel, improves reliability, and offers extended headroom — all while dramatically reducing CPU load.

  • Faster processing: major performance improvements with up to 2.5× lower baseline CPU usage and 55x lower CPU spikes; leaner and more stable under high load.
  • Improved transient response: now runs on an extremely fine internal precision giving better accuracy and clarity.
  • More gain on tap: input and output controls now support ±24 dB range.
  • Stability: fixed vst3 crashes in Ableton and Cubase; fixed a crash in WaveLab caused when toggling oversampling when instantiated in the master section.

v0.1.0-alpha.2 (2025-09-30)

  • Fixed issues where link controls weren’t saved or restored properly.
  • License screen now reliably appears above all controls.

v0.1.0-alpha.1 (2025-09-24)

  • Various state migration and versioning fixes for improved recall reliability.
  • Fixed Windows x86_64 build issues.
  • Fixed linking latency syncing when oversampling taps change.
  • Fixed pops/clicks when toggling A/B and Bypass.
  • Improved gain reduction shaping using attack and release.
  • Added an explicit external sidechain toggle.
  • Stereo linking added with advanced menu; link parameters cached for reliable recall; advanced controls hidden behind the cog icon.
  • Introduced more release time options for greater flexibility.
  • Added a license install helper as a workaround for install issues.