Gater is a free VST plugin that brings you 16 note trance gates.
Gater-Pro is an advanced stereo trance gate application.
The Plugin Site
NoiseControl effectively removes image noise while preserving essential details.
XFX2 is a set of plugins that will help you to master your audio files.
Expander & ducking plug-in made for such applications as noise-gating.
Creates special effects and enhances images using basic graphic effects.
FASoft Compressor is a Compressor/Expander/Noise gate DirectX plug-in.
A free Sequenced Gate plugin to chop up any incoming audio signal.
MR Gate is an expander/gate that can be used to gate noise during quiet sections.
Expurgate is an advanced noise-detecting, linear-phase sub-band gate.
This is a useful audio plugin that has multi-effect with trance-gate, filtering.
Channel strip plugin with gate, equalizers, compressor, and oversampling.
Generates various types of noise for purposes such as suppressing unwanted noise.
Waves Audio Ltd.
Z-Noise eliminates computer noise, and any number of unwanted sonic artifacts.
MR Noise is a broadband noise reduction processor.
R. A. Wood Associates
Painless Extraction Noise Figure retrieves noise figure and gain data.