Audio Editor Plus

Audio Editor Plus is a full-featured digital audio editing software Audio Editor Plus is a full-featured digital audio editing software which allow you to perform various operations with audio data such as applying various audio effects, filtering, format conversion, visual editing, creating, recording, and playing audio files, audio file information editing and more.

It supports many popular audio formats.

Audio Editor supports the following audio formats:
Uncompressed WAV pcm
Compressed WAV (GSM, adpcm, dsp, U-Law, A-Law and others)
MPEG2 Layer 3 (MP3), MPEG2 Layer 2 (mp2)
WMA (Windows Media Audio)
cda (audio cd Tracks)
AVI (audio stream)
Ogg Vorbis
AIFF, AIFC, AU
G.726, G.723, G.721.
VOX (Dialogic adpcm)
MPC (Music Pack)
RAW (Uncompressed pcm, U-Law, A-Law)

Here are some key features of "Audio Editor Plus":
Create, import and export audio files
Display a waveform window of an audio file and apply zooming
Record sound from any available audio source and play audio files
Edit and master audio with the following tools (Cut, Copy, Delete Silence, Paste, Paste From File, Mix, Mix From File)
Apply different effects (Amplify, Delay, Equalizer, Fade, Flanger, Invert, Normalize, Reverse, Silence, Stretch, Vibrato, Echo)
Apply different filters (BandPassFilter, FFTFilter, HighPassFilter, HighShelfFilter, LowPassFilter, LowShelfFilter, NotchFilter)
Insert noise and silence in an audio file;
Convert an audio file from one format to another
Insert and change described information about a marker
Add and change information about an audio file