The IK Multimedia Brickwall Limiter - Multi-Algorithm Limiting Processor (Download) is designed for mixing and mastering applications. In a mastering context, the function of the brickwall limiter is to set a ceiling threshold beyond which the volume of a track cannot go, and then increase the volume of the track so that it approaches the limit and fulfills the loudness requirements for the material. This is generally one of the last processes applied to a track before it is ready for broadcast or digital distribution. In a mixing application, the limiter can be used in a manner similar to a compressor to add punch or color to a mix.
The software offers a series of different limiting algorithms such as a "clean" setting for the most natural result with minimal distortion to saturation settings that add more character to the sound. The user interface includes virtual knobs for controlling the input level, output level, attack time, and release time.
It also features a gain reduction meter, an overall output meter, and a button for linking the left and right channel. A bypass switch allows you to A/B the effect of the processing on the signal, and a reset switch can be used to restore the original settings.
The plug-in is fully compatible with native 32- and 64-bit applications on both Mac OS X (Universal Binary) and Windows (XP/Vista/7/8) computers. It supports VST, RTAS, AAX, and Audio Units plug-in formats, and can also be used with the T-RackS CS standalone application (sold separately).