Improving audio quality in iMovie 4

I'm editing a video which has an audio track that consists of interviews, some recorded next to a busy street. Is there a way to clean up the track and take out the ambient noise? Note that I'm using the (antique) iMovie 4.0. Also, there is a variation in the audio levels between scenes. How do I correct for that? Thanks!
i

First thing you want to do is repost this to the proper group which can be found here...
http://discussions.apple.com/forum.jspa?forumID=855
You posted this into the iMovie '08 group.
But to sort of answer your question, you can not do a whole lot of audio editing within iMovie other than volume adjustments to all of it, cutting, pasting, etc. If you want to do real audio editing to try and scrub out audio noise, you will need to do that outside of iMovie in other audio programs. I can not recommend any myself from first hand experience.
To get your video audio, simply put your clips on the timeline, select them all, then do an Extract Audio command. This will mute the original audio then make COPIES of just the audio track on the timeline. Those copies can be found in the media folder of your project and you can now take those audio files and work with them in other programs.
You might start with some free ones like Audacity.
Patrick

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