I don't want to open Cubase every time I have to edit an audio file, do you know a quick (light on cpu) app to do that? Thanks! Elmer

 

Like.. Reaper? Or Audacity or Tenacity?

 

Audacity? Soundop?

 

If I need to trim or offline process audio files my go-to is Sound Forge (as it has been for 20+ years or so), but... it's not exactly lightweight. But after the initial learning curve to pick up the basics it is fast to use.

Might not be the lightweight solution, and I've given up using it as Ableton's external editor for that reason. Audacity works fine but it's not optimal for my use (because it's really a multitrack editor) so I use Acon Digital's Acoustica for that.

So in short: Sound Forge for features, Acoustica for editing from a DAW.