Can I convert .mp3 audio files to .pkf format?
Converting MP3 Audio Files directly to Adobe Audition Peak Files (.mp3 to .pkf conversion) is certainly possible, even though your options are limited to using the original software.
Use Adobe Audition or Adobe Premiere Pro, which allow users to import MP3 audio files in order to create PKF files.
Professional audio editing software from Adobe
A timeline-based video editing software from Adobe