Hi..
I`m Peter, an +30 yrs experienced audio freelancer, composer, producer. I worked with similar to yours projects. /pls check my evaluations in my profile info - scroll bit down to see it - I do EN-PL translations too , and those were my latest done projects../
For " postproduction edits" as yours I use latest professional tools from my studio /those are Adobe Audition, Cubase, Sonar, Izotope, Melodyne, VocAlign +more. I bring always top possible cleaning as denoising, declip, dereverb, voc-remove, EQ, normalize and more.. but - final result depends on kind of problems and tech quality of source file (the best of source should be sent as WAV)..
I`m opened for clearing all details regarding processing I `ll make, but I need all details as your source, playtime of all sources, expectations how it should be made..
let`s chat about it all.. I`m serious freelancer, delivering top possible output , /but "I don`t promise miracles"=it must be based on agreement - it CAN or CAN'T be done as requested ..
rgds
peter