TC Electronic LC6N - Loudness Corrector — Free Download
TC Electronic LC6N is a loudness normalization tool for 5.1 surround and immersive audio, ensuring compliance with broadcast standards while preserving mix dynamics. It works as a Pro Tools AAX AudioSuite plugin or standalone batch processor.
Purpose and Compliance
LC6N is a precision loudness corrector built for professional surround and immersive audio delivery. It prepares content for film, broadcast, and streaming by normalizing loudness to meet major standards like ITU BS 1770-4, ATSC A/85, EBU R128, TR.B32, and OP-59. The tool is designed to maintain the energy and dynamics of the original mix, avoiding the dullness often associated with loudness processing.
The software operates as an AAX AudioSuite plugin within Pro Tools for two-pass offline normalization, or as a standalone application with drag-and-drop watch folder support. This dual workflow lets you handle both session-based fine-tuning and batch file processing without slowing down creative or delivery pipelines.
Key Capabilities
LC6N applies faster-than-real-time, two-pass offline loudness normalization to hit an exact loudness target. A built-in true peak limiter with limiter profiles and linking features ensures masters pass true peak specs across platforms. The traffic-light status indicators for source and processed files provide immediate visual feedback on compliance, while a short-term max limit setting helps keep promos within current broadcast rules.
A dual visual loudness landscape radar displays original and normalized audio simultaneously, giving a quick graphical confirmation that processing was successful. The software is available in a 5.1 surround version (LC6N) and a stereo version (LC2N), with an option to upgrade from LC2N to LC6N.
Workflow Integration
For Pro Tools users, LC6N integrates as an AudioSuite plugin, allowing you to select clips, set your loudness target, and run offline processing directly in the session. The two-pass approach analyzes then applies, ensuring accuracy. For file-based workflows, you can drag and drop audio files into a watch folder on your local machine or network.
The watch folder automatically batch processes multiple files, creating peak-limited, loudness-normalized outputs with high audio quality. File name changes indicate processing settings and any warnings. This setup is ideal for delivery houses or post facilities handling many spots or episodes needing consistent loudness.
Applications and Suitability
LC6N is best suited for audio post-production facilities, broadcasters, and streaming content creators working in surround formats. It streamlines compliance for TV shows, films, trailers, and web ads that must meet regional loudness regulations. The efficient batch processing and watch folder feature make it a practical tool for high-volume delivery.
While it supports immersive audio, the tool is specifically for 5.1 surround and stereo; it does not handle higher-order formats or full object-based audio. Pricing and exact system requirements are not specified in the source, so you should check with TC Electronic for current details.
Key features
- Compliant with ITU BS 1770-4, ATSC A/85, EBU R128, TR.B32, and OP-59 standards
- Works as Pro Tools AAX AudioSuite plugin or standalone application
- Batch processing via drag-and-drop watch folder with automatic file naming
- Integrated true peak limiter with profiles and linking
- Traffic-light status indicators for source and processed files
- Dual loudness landscape radar for simultaneous visual comparison
- Short-term max limit setting for promo compliance
Best for
LC6N is best for professional audio post facilities and broadcasters needing reliable loudness normalization for 5.1 surround content. It handles high-volume delivery with batch processing and ensures compliance across multiple global standards, making it ideal for TV, film, and streaming platforms that require precise loudness targets without sacrificing mix dynamics.
