Kwave

Free, open source, cross-platform audio software. Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, macOS, GNU/Linux and other operating systems. Developed by a group of volunteers as open source. Audacity can record live audio through a microphone or mixer, or digitize recordings from other media. Import, edit, and combine sound files. Export your recordings in many different file formats, including multiple files at once. Supports 16-bit, 24-bit and 32-bit. Sample rates and formats are converted using high-quality resampling and dithering. Support for LADSPA, LV2, Nyquist, VST and Audio Unit effect plug-ins. Nyquist effects can be easily modified in a text editor – or you can even write your own plug-in. Easy editing with Cut, Copy, Paste and Delete. Also unlimited sequential Undo (and Redo) in the session to go back any number of steps. Real-time preview of LADSPA, LV2, VST and Audio Unit (macOS) effects. Plug-in Manager handles plug-in installation.

Based on the Audacity® project rebuilt for Windows 10, Audiotonic is an easy-to-use, multi-track audio editor and recorder. It provides you with a full set of tools that you can use to edit audio files and add effects through a clear and accessible interface. Users of all experience levels will benefit from this app's intuitive interface and nice list of features. Audiotonic can record and play sounds, import and export WAV, AIFF, MP3, and OGG files. Edit your sounds using cut, copy, and paste features, mix tracks, or apply effects to your recordings. Audiotonic also has a built-in amplitude-envelope editor, a customizable spectrogram mode, and a frequency-analysis window for audio-analysis applications.