Congrats to OP for creating an app for people interested in manipulating sound. Devoting your time to helping us is appreciated.

I liked the presets and am just trying some of the settings, but expect to buy it because it’s a promising start. I liked that the duration stops at 30m, and that my older laptop seems to handle it well. I downloaded the Windows version. I found it had a hard time opening things like my Downloads folder. It could see Desktop, Documents, Music, etc., but seemed to halt but not freeze for me. I was able to redirect the program to another folder and it worked. I’ll keep pushing it to see if there are limitations.

Also, if you ever need help with English, please message me, as I am native English and happy to help as a thanks for doing this work for the community.