I tend to use a DAW (Reaper or Cakewalk) or maybe Melodyne but for a bit of simple manipulation I have used Audacity for years. Audacity is free, very commonly used with a lot of addons that make it reasonably versatile. Given the common usage it has a lot of info on various tasks if you need it.

Tony


HP i7-4770 16GB 1TB SSD, Win 10 Home,
Focusrite 2i2 3rd Gen, Launchkey 61, Maton CW80, Telecaster, Ovation Elite TX, Yamaha Pacifica 612
BB 2022(912) RB 2022(2), CakeWalk, Reaper 6, Audacity, Melodyne 5 Editor, Izotope Music Production Suite 4.1