CLC - Continuous Loudness Control Stereo


The next generation stereo audio processing

Continuous Loudness Control Stereo (CLC) is a Masterclass Plugin featuring a unique visualization and patented loudness processing algorithm developed together with the IRT as a plugin and standalone software. The amazing look-ahead low latency algorithm used in the CLC allows dynamic loudness processing of unknown stereo live audio and stereo audio files to a given loudness value with or without changing the original Loudness Range and protects to an adjustable True Peak value. CLC further improves the quality of loudness processing with various enhancements like batch processing of stereo audio files, extended audio format support (e. g. MXF), an expert mode for very special material, Mmax and Smax limiting, report functions, and optimized presets for e.g. streaming audio.

CLC technology allows users to constantly adapt the level of stereo audio they are working on, against a given program-loudness value, along with a definable loudness range in real-time with minimal obstacles. The CLC algorithm “learns” during processing about the dynamic structure and intention of the stereo sound signal, and adopts its processing constantly to predict what comes next. CLC software is best for handling Live audio, DAW audio, and audio files in stereo. Broadcasters are kept in mind, as they receive many different types of audio files (e.g. MXF) and have to prepare them for transmission. Therefore, CLC’s batch mode offers automated and unattended loudness analysis and processing of stereo audio files. Incoming stereo audio files from different sources are processed according to predefined settings for e.g. different genres; the output is stored in the target folder together with optional report files. Optimized presets and the Expert mode allow to better match requirements for different types of programs and distribution channels.


  • Live and File Mode for Stereo audio
  • Adjustable Target Loudness and Loudness Range
  • Dynamic Low Latency Algorithm
  • Adjustable TP Limiter
  • Adaptive Morphing Technology
  • Standalone and DAW-Plugin
  • Common plugin formats for Windows® and Mac® OS X
  • Scalable window for tailorable positioning

System requirements

Windows Windows 7 and later
Mac Mac OS 10.11.x and later
Pro Tools Pro Tools 11.x and later
Max Sample Rate 96 kHz
Copy Protection Requires iLok


AAX Native

This product is tested by the Seller for support of current versions of the indicated Avid products and operating systems. For compatibility questions related to older systems, please contact the Seller.

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