Its functionality is derived in part from the loudness-normalisation algorithms within Insight and the Loudness Modules in RX4/5, but it also has features that go beyond the capabilities of both. RX Loudness Control works as an offline AAX AudioSuite plug-in in Avid’s Media Composer and Pro Tools (v10 to 12), or as an Audio Extension for Adobe’s Premiere Pro.
For example, Insight now supports Mac OS 10.11 and Windows 10, with host support for Pro Tools 12.3, while DirectX support has been dropped. The latest version is 1.04, but the only significant changes compared with the version I reviewed, apart from a few small bug-fixes, are to the supported platforms and plug-in formats. The display window can also be customised to show or hide the different display options as may be required for different applications or preferences. It also includes stereo and surround-sound ‘sound stage’ displays, spectrum analysers, and both 2D and 3D spectrogram modes. Insight is included in the Advanced version of RX5 as well as the Post Production Suite and, in brief, provides a customisable loudness and true-peak meter, with support for channel formats up to 5.1 and presets for the international BS.1770 loudness standard variations. I reviewed the impressive Insight audio analysis and metering plug-in (v1.01) in the March 2013 issue of Sound On Sound, so will cover it only briefly here.
The idea is to provide a full suite of tools that cover all aspects of audio post-production including audio repair, mixing and final delivery. The company have also released a new flagship product called the RX Post Production Suite as the name implies, this not only includes RX5, but also the Insight metering system, RX Loudness Control and RX Final Mix products as well. Incorporating an ever-expanding collection of sophisticated tools for repairing, restoring and enhancing audio files, RX has now reached version 5, with both standard and Advanced editions available. It seems that along with Christmas, another regular annual event we can rely upon is a new version of iZotope’s RX Audio Editor software. The latest version of iZotope’s best-selling restoration software adds powerful new modules, as well as a Post Production Suite bundle aimed at film and TV applications. New in RX5 is an Instant Process option that can really help to speed up repetitive tasks.