Editing audio with a Chromebook was one of the biggest challenges that I had to solve when I started using ChromeOS full time.
You can’t use tools like Garage Band a Chromebook, so I had to come up with alternatives.
The good news is that there are several good web-based audio editing tools that work great on Chromebooks. Here are three free tools that I use to edit my podcast:
Note: it is possible to run the Linux version of Audacity on a Chromebook. This works fine for individuals, but isn’t a realistic option for K-12 schools with Chromebook deployments.