Sound editing functions include cut, copy, paste, delete, insert, silence, auto-trim and more.WavePad for macOS works as a wav or mp3 editor, but it also supports a number of other file formats including vox, gsm, wma, real audio, au, aif, flac, ogg, and more. When editing audio files, you can cut, copy and paste parts of recordings, and then add effects like echo, amplification and noise reduction. It lets you record and edit music, voice and other audio recordings. WavePad Sound Editor for Mac is a full-featured professional audio and music editor for Windows and Mac.