While EXPStudio Audio Editor Free doesn't offer a tenth of the features of a full-fledged audio package, it's a snap to learn and it is indeed absolutely free.
We like how the program window conveniently arranges the controls. Under the hood, you'll find support for most popular audio formats, as well as a recorder, cut/paste tools, essential effects (fade-in/out, reverb, changing tempo, and pitch), and filters (low-pass and high-pass). The Marker tool lets you store any number of selected audio fragments. However, you can't mark a time point, only a fragment. The program can only save audio as uncompressed WAVs or MP2s.
Unfortunately, you can only work with one file at a time. On balance, then, EXPStudio Audio Editor Free seems best suited to home users with quick and dirty music-editing needs.
This powerful free tool allows you edit your audio files like editing text files, display a waveform window of an audio file and apply zooming, record new audio file from a microphone, VCR, cassette player or another input device, visually edit an audio file (cut, copy, delete silence, paste from file, mix, mix from file); apply different effects (Amplify, Delay, Equalizer, Fade, Flanger, Invert, Normalize, Noise, Breath reduce, Reverse, MultiTapDelay, Silence, FX effects (Convert voices: Female to male, male to female, Chipmunk and Zeus). The following audio formats are supported: 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.