How to atenuate sound distortion?

I have a DV clip where the sound taken from a wireless microphone is slightly distorting. What tricks do you know to atenuate that unpleasant distorting sound? Can we cut frequencies? Would an equalizer help?
Any help would be appreciated.
Thank you!

There are audio tools available (not for FCP) that can view an audio waveform and recreate the peaks that were destroyed by setting the audio levels wrong while recording.
The best one I've seen is for Sound Forge by Sonic Foundry (now Sony). Find a PC friend with this plugin and use it.
If not, you can adjust it all you want, but it will still be there.

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