Soundomatic – Duration field

There seems to be a calculation issue in regards to the item duration. I have added %%item_duration%% in the output for the post of the items gotten from Soundcloud. But it seems to only convert the duration into minutes with a decimal for the seconds, leading to a confusing output for items since we never use 25.83 minutes as a way to show duration for an item. Would there be a way to convert the output of item duration to say e.g. 25:49 instead? Or a way to customize the output to be able to output x min x sec? Example url: https://meyerhaugen.demoside.no/podcaster/breakingreportere-til-tv2-no/