Archived: CLC – Continuous Loudness Control

Archival: High Quality and Uniquely Sophisticated Loudness and Loudness Range Correction: CLC – Continuous Loudness Control

Next generation audio processing in Live- and Postproduction, for TV and Radio

NOTE: This plug-in/stand alone application is no longer available!

Read article Plug-ins discontinued for further information.


As a plug-in and stand-alone application, the Continuous Loudness Control (CLC) software features a unique visualization and patented loudness processing algorithm mainly developed for live applications.
Thereby, CLC can easily be operated. The target level for Loudness and upper limits for LRA and TruePeak have only to be set to get an excellent processing quality for common broadcasting signals. Additionally, the CLC software includes numerous operation modes for different fields of application.

  • Plug-in and stand-alone application for Mac® and Windows® systems
  • Dynamic loudness processing of unknown live audio and audio files to a given loudness target value with or without changing the original Loudness Range
  • Batch processing, extended audio format support (MXF) and expert mode for very special material

The Principle

CLC technology with the outstanding “Look-ahead Low Latency” algorithm allows users to constantly adapt the level of audio they are working on, against a given program-loudness value, along with a definable loudness range in real-time with all-time minimal obstacles without sonic discolorations. The CLC algorithm “learns” during processing about the dynamic structure and intention of the sound signal, and adopts its processing constantly to predict what comes next. CLC software is best for the dynamic processing of unknown Live audio, DAW audio, and audio files.

Batch Processing

But also 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 audio files. Incoming 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 Audio, DAW Audio, and Audio File modes in multi-channel applications
  • Batch processing
  • Multi-channel version with single-user license or network license (2 or 10 seats)
  • Stereo version with single-user license
  • Extended audio format support (e. g. MXF)
  • Loudness acc. to all global standards
  • Adjustable Target Loudness and Loudness Range (LRA)
  • Adjustable TP Limiter
  • Mmax and Smax limiting
  • Expert mode to process very special audio material
  • Optimized presets for e. g. streaming audio
  • Graphical routing overview with channel presence and activity indicator
  • Loudness reporting (Java Runtime Environment required)
  • Dynamic Low Latency Algorithm
  • Adaptive Morphing Technology
  • Stand-alone and DAW-PlugIn
  • Common plug-in formats for Windows® and Mac® OS X
  • iLok copy protection (iLok License Manager 5.0 or higher and iLok Account required, iLok USB Smart Key recommended, not included)

Operation Requirements

  • Dual-core-processor 2.5 GHz
  • 4 GB RAM
  • 200 MB Hard disk space
  • Operating systems
    - VST2.4, VST3, stand-alone (32/64 bit each), AAX Native64 for Windows® 7/8.1/10
    - VST2.4, VST3, AU, AAX Native64, stand-alone for macOS® X 10.11 or higher and for macOS® Big Sur (11) on computers with Intel® processor
  • ASIO audio driver installed on Windows® systems
  • Latest OpenGL® graphic driver and other firmware of your computer
  • iLok License Manager 5.0 or higher and iLok Account
  • iLok USB Smart Key: recommended for single-user licenses, required for network licenses (not included)
  • iLok Server (Floating License Server) for network licenses (not included)
  • Internet connection required for activation process