I’m happy to announce the release of a colored compressor plugin as well as a colored expander plugin based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats. They are effectively replacing the ATKCompressor and ATKExpander plugins by adding several new parameters: RMS filter (set it to 0 to get peak detection from the old plugins), color (gain change around the threshold, positive color adding gain and negative color removing gain), quality (affecting the coloring on a smaller or bigger area around the threshold). The expander also has a maximum reduction parameter, allowing the user to specify the maximum amount of gain reduction below the threshold.