AudMonkey

AudMonkey, the free, open source, multitrack, privacy friendly, audio editor contains contains the following features:

Recording AudMonkey can record live audio through a microphone or mixer, or digitize recordings from other media. With some sound cards, and on any recent version of Windows, AudMonkey can also capture streaming audio.

Export / Import Import, edit, and combine sound files. Export your recordings in many different file formats, including multiple files at once.

Sound Quality Supports 16-bit, 24-bit and 32-bit. Sample rates and formats are converted using high-quality resampling and dithering.

Plug-ins Support for LADSPA, LV2, Nyquist, VST and Audio Unit effect plug-ins. Effects can be easily modified in a text editor – or you can even write your own plug-in.

Editing Easy editing with Cut, Copy, Paste and Delete. Also unlimited sequential Undo (and Redo) in the session to go back any number of steps.

Effects Real-time preview of LADSPA, LV2, VST and Audio Unit (macOS) effects. Plug-in Manager handles plug-in installation and addition/removal of effects and generators from the menus.

Accessibility Tracks and selections can be fully manipulated using the keyboard. Large range of keyboard shortcuts.

Analysis Spectrogram view mode for visualizing and selecting frequencies. Plot Spectrum window for detailed frequency analysis. Support for Vamp analysis plug-ins.