Hello ! (sorry for my English google trad is my friend)

I want to render my videos with the best audio because I'm musician. But I don't want video to big, it's for Instagram. With my audio software my tracks are wav 24bit 48KHz.

Do you have any suggestion for Lossless Audio ?

no idea.. you have to test some changes to ffmpeg "script" maybe a profile for this kind of job can be added on download page (based on your suggestion) ... https://store.kde.org/browse/cat/334/order/latest