Nero WaveEditor Alternatives for Mac OS X

Audacity is a free opensource audio editor utility which also cross platform.

Adobe Audition (formerly Cool Edit Pro) is a digital audio workstation from Adobe Systems featuring both a multitrack, non-destructive mix/edit environment and a destructive-approach waveform editing view.

Sony Sound Forge (Sonic Foundry Sound Forge) is a digital audio editing suite aimed at the professional and semi-professional markets.

Ocenaudio is a cross-platform, easy to use, fast and functional audio editor that bundles a rich array of audio effects.

Pro Tools redefined the music, film, and TV industry, providing everything you need to compose, record, edit, and mix music and audio.

WavePad 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.

Free Audio Editor is the professional music editor available to record, edit and share all your music.

TwistedWave is an audio editor.

Fission is a fast lossless audio editor.

Traverso DAW is a cross-platform multitrack audio recording and audio editing suite with support for CD mastering and non-linear processing.