Audio and MP3 :

Fx Audio Editor 3.1.1
Visually play, record, edit or convert most sound file formats. Add special effects and apply filters. Supported file type include: 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.
This software is a commercial software. You will be able to download and test Fx Audio Editor during a certain period of time, then, if it does what you need, you will have to acquire the full version. The trial version available for download on www.softandco.com has a size of 8120 KBytes. For additional information and support request, please contact directly Fx Audio Editor publisher.
Fx Audio Editor 3.1.1 was released by J. Hepple, Inc. on Monday 13 June 2005. Its known requirements are : P-300, sound card.
Fx Audio Editor will run on Windows 95, Windows 98, Windows 2000, Windows NT and Windows XP.