Fx Audio Editor allows you to visually play, record, edit or convert most sound file formats. You can also add special effects and apply filters, including WAV PCM, Compressed WAV (ADPCM, GSM, DSP, A-LAW, U-LAW, ALF2 and others), MP2, MP3 (MPEG Layer-3), VOX (Dialogic ADPCM), WMA Windows Media Audio), RAW (PCM, A-LAW, U-LAW), CDA (Audio CD Tracks), OGG (Ogg Vorbis), G.721, G.723, G.726. Additional features include auto gain control, recording without silence and more.

The license of this software is Free Trial Software, the price is $39.95, you can free download and get a free trial.