Clipper is a simple and focused app that acts on a media file to produce a 'clip' containing only the portions between a specified start and end time. It works with multiple audio streams, and presumably (thanks to ffmpeg) any format of media file.
Clipper requires ffmpeg to be installed and accessible anywhere. On Windows, this means that ffmpeg.exe and ffprobe.exe must exist in a folder included in the environment variable PATH, and similarly for linux.
For those working on the source, the package range_slider must also exist under $PYTHONPATH.