Any audio filters to take out "hiss" noise?

I have recently done some quick interviews with a boom mic, and there happens to be a "hissing" sound that I wish to take out of the audio. I was just wondering if there is any audio filter or anything in Soundtrack (not Sountrack-Pro) that anyone would suggest me using to take this unwanted audio away. Thanks for any suggestions.
(I also have FCE 3.5HD)

I use SoundSoap2 which works pretty well. It's around 100.00. I think it can be used as a stand alone app. I use it as a plugin with audio apps. Audacity is a free audio editor that reportedly has a feature that is very good, altho I haven't tried it. You would have to clean up the file, render it and then import back into FCE. good luck.

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<edited by moderator>

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Any audio filters to take out "hiss" noise?

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