Voxengo - Sound with a Soul
Professional VST PlugIns and
AU PlugIns

Would it be possible to implement a 'range' feature in the future, i.e. a second threshold where the compression or expansion stops?  As an example, if Soniformer is used for upward expansion, it raises everything below the threshold, which includes the noise floor; with a second threshold, the expansion would begin only after the signal reaches a certain level.  Or with compression, the plugin would compress above the main threshold, but not compress anything above the second higher threshold.  This would serve as a kind of non-linear knee and allow for better control over the action range, allowing for excellent thickening of the mix without over-compressing the peaks, or, in the case of expansion, making the lowest level ambience & noise too jumpy.
Thanks,
George

Thanks for the suggestion - I will most probably implement such secondary "range" envelope.