Strange equalizing volume in Soundbooth

Hello,

i'm trying to equalize volume from sequence in PPro.
i've exported the audio tracks and imported in Soundbooth where i made equalizing.

The thing does its job, though often there are strange audible volume ups and downs which are quite annoying. The audio is consisted of music and recorded speech.

Any idea or obvious solution maybe?
Should i export speech and music separately and do the equalization before matching the volumes?

Thanks, Alex