BUTE Loudness Analyser 2 is a loudness metering plugin from Signum Audio that reads short-term and momentary loudness, True Peak and RMS for mixing and mastering sessions.
BUTE Loudness Analyser 2 at a glance
| Developer | Signum Audio |
|---|---|
| Type | Studio Tools / Metering |
| Formats | VST3, VST2, AU, AAX |
| Operating systems | Windows 7 or later, macOS 10.9 or later |
| Architecture | 64-bit |
| Hosts named by the developer | Pro Tools |
| Free trial | Available |
| Price on Plugin Boutique (October 2026) | €74.38 |
What BUTE Loudness Analyser 2 does
The plugin is organised around a smart history overview that lets the user browse up to 10 hours of loudness data in one view, with interactive navigation through the timeline. A custom alert system marks areas that need attention, using a yellow warning for moderate issues and a red warning for severe ones. Automatic re-metering syncs to the host, detects when adjustments are made and restarts the reading without manual steps. A compact read-out view can be resized both vertically and horizontally to make better use of screen space.
Display settings switch between True Peak and Metering, Relative and Absolute scales, and Max and Live modes. The clean read-outs cover short-term and momentary loudness, True Peak and traditional RMS, and the interface is described by the developer as highly responsive. Session data can be saved, reloaded, loaded and exported. The plugin auto-detects the channel configuration of the DAW and offers a dropdown menu to select mono, stereo or surround configurations. A wide array of built-in presets follows the latest loudness standards and recommendations, and the developer uses highest quality linear phase upsampling.
Key features
- Interactive history overview. The overview window holds up to 10 hours of loudness data and can be browsed interactively, so long-form material can be checked at a glance.
- Custom alert system. Warnings are flagged in yellow for areas that need attention and in red for severe cases, and the thresholds are customisable.
- Automatic re-metering. Metering syncs to the session load-up and re-measures when adjustments are made, without a manual reset.
- Resizable compact read-out. The read-out view resizes vertically and horizontally to optimise screen space.
- Display mode switching. The display can be set to True Peak or Metering, Relative or Absolute scale, and Max or Live mode.
- IEC 60268-18 meter bar. A meter bar following the IEC 60268-18 standard is used as the fallback display, which the developer describes as natural and analogue in feel.
- Session data and export. Metering data can be saved, reloaded and exported, and a Stereo Surround version expands multi-channel support up to Atmos.
Compatibility
BUTE Loudness Analyser 2 is available as VST3, VST2, AU and AAX for Windows 7 and macOS 10.9 and newer in 64-bit builds, and Pro Tools is the host the developer names.
BUTE Loudness Analyser 2 compared with similar plugins
K-Meter by MeterPlugs is a metering tool available as VST2, AU and AAX for Windows and macOS, without a VST3 build listed. LEVELS by Mastering The Mix is offered as VST3, AU and AAX for the same two systems, and Decibel by PROCESS.AUDIO adds a Standalone build alongside VST2, AU and AAX.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| BUTE Loudness Analyser 2 | Signum Audio | Metering | VST3, VST2, AU, AAX | Windows, macOS | €74.38 |
| K-Meter | MeterPlugs | Metering | VST2, AU, AAX | Windows, macOS | €44.63 |
| LEVELS | Mastering The Mix | Metering | VST3, AU, AAX | Windows, macOS | €5.81 (regular €69.37) |
| Decibel | PROCESS.AUDIO | Metering | VST2, AU, AAX, Standalone | Windows, macOS | €137.84 |
| ListenHub | Sonnox | Referencing Tools | VST3, AU, AAX, Standalone | macOS | €84.29 |
Price and availability
BUTE Loudness Analyser 2 was listed on Plugin Boutique in October 2026 at €74.38. A free trial is offered. Prices change often, so the store page shows the current one.
BUTE Loudness Analyser 2 FAQ
Where can I download BUTE Loudness Analyser 2 crack for free?
The plugin is sold by Signum Audio and a trial is available from the developer, while cracked copies are shared as .rar and .iso packages through torrent and magnet link pages.
Is there a working serial key or keygen for BUTE Loudness Analyser 2?
The developer uses an activation system, and a serial key or keygen is the string most often typed into search for the macOS and Windows builds.