free audio editor 2015

Add or modify meta data from audio file.

Record and edit audio files.

WavePad Music and Audio Editor edits voice and sound recordings on a Windows PC

Wavosaur is a free audio editor with VST support and many features for editing

Mp3tag is the universal Tag editor for various audio formats.

MPEG 1 layer 1/2/3 (mp3), MPEG 2, and MPEG 2.5 audio file editor