If you ever need to edit audio files, look no further than ALO Audio Editor, a full featured audio editor with a wide array of tools.
ALO Audio Editor works with many different formats and lets you perform all sorts of operations on your audio files, from the basic cut, copy and paste tasks to more complex special effects and filters with which to alter the way your audio file sounds.
ALO Audio Editor features the classical audio editing interface, with a timeline displaying the loaded file and all the buttons and menus you need just a click away. The program includes a varied selection of filters and effects you can apply to the while file or just a selected area. Then, you can check the results in the built-in audio player.
The only drawback to ALO Audio Editor, in my opinion, is the nagging window that appears with almost any action you perform on the program. I know this is a trial version, but I don't need to be reminded of it every 20 seconds.
If you ever need to edit an audio file, be it a simple cut and copy task or a cool special effect, AOL Audio Editor is a great choice.