Bliss Audio WAV to RA Backup - Version 1.3.69 Bliss Audio WAV to RA Backup is an audio extractor software, extract favorite audio from most of video movie files and make into mp3 music files! User-friendly interface: one click settings solution, need not any basic knowledge. Support WAV PCM. Support VOX (Dialogic ADPCM), WMA Windows Media Audio). Visually play, record, edit or convert most sound file formats. Add special effects and apply filters. Support OGG (Ogg Vorbis), G.721, G.723, G.