[linux-audio-user] Noise gate (or something else?)

Hello, I desperately need a noise gate, or something else to remove breathing sounds. Could anyone help me find one? I am recording using Audacity 1.2.3 from a rather simple microphone, and breathing sounds are clearly heard when the speaker inhales air; from the look of the graph, it seems that a simple noise gate would remove them. But I could not find a noise gate in Audacity 1.2.3... Is there any program, including a plugin for or later version of Audacity, taht would do noise gating? Or perhaps there is a better way to remove the sounds? (There is a Noise Removal plugin, but might it not affect the voice itself?) -- Yours, Mikhail Ramendik