Wavosaur
Wavosaur is a free sound editor, audio editor, wav editor software for editing, processing and recording sounds, wav and mp3 files. It has all the features to edit audio (cut, copy, paste, etc.) produce music loops, analyze, record, batch convert.
AV Music Morpher
AV Music Morpher is an all-in-one digital music studio for creative DJ and music remix. Ideal for changing voice, tempo, editing surround, stereo, treble, bass. More morphing tools available: frequency morpher, advance tune, cher modulation, equalizer, effect mixer. Supports mp3, mp2, wma, wav, ape, ogg, nist, au, aif, irc. Built-in audio editor to copy, cut, paste segment of sample, editing sound files. Built-in converter, CD grabber, burner, CD cover & label editor.
MediaInfo Lite
MediaInfo Lite is a tool to analyze media files. It can give you information about the audio and video format, video resolution, duration, etc. It optionally includes a shell extension for Windows Explorer. When installed, it will show you information when you move your mouse pointer over the media file.
Free Sound Recorder
Free Sound Recorder does exactly as it sounds -- it is an easy-to-use free software program that lets you record any sounds from your sound card and save the recording directly into MP3, WMA or WAV files. Free Sound Recorder is a perfect audio recorder to record your own voice, music or any other sound by working directly with your sound card. It supports the record input/source from a microphone, streaming audio from the Internet, external input devices (e.g. CDs, LP, music cassettes, phone line etc.)