Audacity is the most comprehensive free cross-platform editor that I have tried. WavePad is another excellent audio editing software for Windows and macOS that is free for non-commercial use.

Audacity Software + Tutorials: Includes the latest version of best free audio editing and recording software with a 1 hour crash course on mixing vocals for podcasts and videos. Premium DAW ...

The video editing software is free for all Mac users, and if you’re curious ... Can you pull in footage and audio from multiple files, swapping between them as needed, or will you need to ...