Kwave

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.

Wavosaur is a cool free sound editor, audio editor, wav editor software for editing, processing and recording sounds, wav and mp3 files. Wavosaur has all the features to edit audio (cut, copy, paste, etc.) produce music loops, analyze, record, batch convert. Wavosaur supports VST plugins, ASIO driver, multichannel wav files, real time effect processing. The program has no installer and doesn't write in the registry. Use it as a free mp3 editor, for mastering, sound design. The Wavosaur freeware audio editor works on Windows 98, Windows XP and Windows Vista. Go to the features page for an overview of the software. All classic editing functions, cut, copy, paste, paste mix, paste replace/insert, paste to new file, trim/crop, delete, undo. Many processing options, mute, channel convert (stereo->mono, mono->stereo), insert silence, change volume, normalize level, fade in/out, invert/flip, undo.