Audacity, Adobe Audition, Sound Forge, Avid Pro Tools, WavePad, Spek, Ocenaudio, SoundEditor, Wave Editor, Tenacity, DSP-Quattro, Radium, DarkAudacity, Wavacity, Sodaphonic, Fission, Adobe Soundbooth, Doninn Audio Editor, BLUEJAY, Giavapps Amplitude are some alternatives to TwistedWave.