Signum Audio Bute Loudness Analyser Stereo

Metering Plugin

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  • Regular price $96.00
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AAX Native - Compatible with Pro Tools 11 and above
AudioUnits Format VST2 Format
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The perfect tool for keeping your levels in check

Loudness standards are usually part of a delivery specification and since this is the last step in post-production it's a time-critical issue for most projects. Signum Audio's tools help to meet specifications with ease. Even if you don't need to hit specific specifications you might still want to loudness master for your target platform (e.g. Spotify, or YouTube), their tools help with that as well.

The BUTE Loudness Analyser is the backbone of Signum's range of loudness solutions, and an essential tool for those working in post-production for broadcast, music, gaming, podcasts, film, sound design, and radio imaging. It offers high-end quality at a great value.

Bute-ifully Crafted for An Improved Workflow

The BUTE Loudness Analyser has been beautifully designed to deliver unparalleled levels of insight into your audio files with accurate and customizable readings. Advanced features like automatic re-metering, customizable warnings, an interactive navigation overview and window, and reloadable session data. These workflow-driven features make it particularly useful for long-form content.

Master Smarter

With Signum's high precision metering algorithms, you can rest assured that your audio will meet your clients delivery specifications and sound as it should. With its range of useful workflow features, configurable meter readings for short-term and momentary loudness, true peak and traditional RMS, and the latest broadcasting and streaming standards included as presets, Bute Loudness Analyzer makes your mixing and mastering journey much simpler.


  • Clean and comprehensive user-interface with loads of neat features
  • Highly informative graph display
  • Easily toggle between readings for short-term & momentary loudness, true peak, and traditional RMS
  • DAW Sync and automatic re-metering reflecting any adjustments you make for a smarter workflow
  • Wide array of built-in presets for the very latest loudness standards and recommendations
  • History overview and alerts letting you easily see and navigate to areas that require your attention
  • Custom alert system so you can specify your own parameters
  • Flexible and scalable so you can have a graph or numerical view
  • Can handle 10+ hours of data
  • Reloadable session data
  • Save, Load and Export metering data
  • Available for Windows and Mac in VST / VST3 / AU / AAX (including Audio Suite) formats.
  • Compatible with Pro Tools 12.5 or higher
  • Also included in the BUTE Loudness Suite

DAW Sync and Automatic Re-Metering

Whether you use Pro Tools, Ableton, Logic, Cubase, Premiere Pro (or most other DAWs for that matter), Bute will synchronize, with it locking to the transport. When you make any alterations to your audio in your DAW, Bute automatically re-analyzes and updates the overall metering and history graph.

Built-in Presets

Bute is fully compliant with all revisions of ITU-R BS. 1770, EBU R128, ATSC A/85, OP-59, ARIB TR-B32, Spotify, YouTube, Apple Check, Hulu, Netflix, TIDAL, Sony Gaming (ASWG), AES Streaming Recommendation, US Public Radio (PRSS), TIDAL and Pandora. You can also save multiple user-defined presets.

History Overview & Alerts

The detailed history overview gives you complete oversight and insight of your session. Areas of your audio that need your attention will be shown in red in the history overview. You can easily navigate to the areas that require your attention and zoom in and out your metering data. Handling a long session? No problem!

Custom Alert System for Dynamic Work

If you are working within a dynamic range, you can specify your desired range parameters in the "custom warning system" section of the settings menu. Sections of your audio that go out with the specified range will appear in yellow on the history overview. This will let you focus on your craft instead of meter readouts.

Easily Toggle Between Readings

You can toggle between short-term and momentary loudness, true-peak, and traditional RMS readings at the click of a button. This means you can declutter the interface to focus on the information you want. The same goes for switching between absolute and relative scale.

Flexible and Scalable

Bute is completely scalable giving you the flexibility to freely adjust size and scale to your preferences. There is also a compact view to save valuable screen space if needed.

Save, Reload and Export Metering Data

If you need to save multiple sessions for different platforms, you can. Bute will also reload metering data from previous sessions so you can head home and continue the next day where you left off. If you need to prove your program or audio file is loudness compliant, you can export CSV logs too.