What version of Premiere Elements are you using and on what computer operating system is it running?
Premiere Elements Editor does not have a "Fit Slides to Audio" feature as does it Elements Organizer Slideshow Editor.
In Premiere Elements 12 there is Music Score which uses a concept similar to SmartSound used in versions earlier than 12.
This concept involves using special Soundtracks that come with the program and being able to change the duration of the Soundtrack
without altering its arrangement. Though similar in concept to SmartSound, the version 12 Music Score is not SmartSound.
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