GoldWave Digital Audio Editor

GoldWave is a top rated, professional digital audio editor. It contains so many great features, you will be amazed by all the things it can do:

* Play, edit, mix, and analyze audio
* Record audio from cassettes, vinyl records, radio, etc. through your computer's line-in
* Record dictation through a microphone or play dictation back at a slower speed for transcription (with foot pedal control)
* Record and edit audio for podcasting or telephone systems
* Apply special effects, such as fade, equalizer, doppler, mechanize, echo, reverse, flanger, and more
* Digitally remaster and restore old recordings with noise reduction and pop/click filters
* Make perfect digital copies of audio CD tracks using the CD Reader tool and save them in wav, wma, mp3, or ogg files
* Edit music for dance programs, figure skating, gymnastics
* Analyze human speech, bird song, whale song
* Demonstrate digital signal processing with filter effects and the Expression Evaluator tool
* View a variety of useful real-time visuals and level meters
* Convert files to/from different formats, such as wav, wma, mp3, ogg, aiff, au, vox and even raw binary data
* Expand functionality with plug-ins
* Command line processing

Details available at this link.