Free Audio Dub - Version 1.4.2.1 Free Audio Dub is an audio editing program that allows t o delete unwanted parts from audio files. The program pr eserves the quality of input audio files and pro cesses them without re-encoding. Free Audio Dub is loss less audio editing software! Supports many audio forma ts: MP3, WAV, AAC, AC3, M4A, MP2, OGG, WMA.