Audacity

This editor can record and play sounds and import and export WAV, AIFF, MP3, and OGG files. Edit your sounds using cut, copy, and paste features (with unlimited undo functionality), mix tracks, or apply effects to your recordings. The program also has a built-in amplitude-envelope editor, a customizable spectrogram mode, and a frequency-analysis window for audio-analysis applications. Built-in effects include bass boost, wah wah, and noise removal, and the program also supports VST plug-in effects.

 FreeRip

FreeRip is a free and easy to use Windows application that can record digital audio tracks directly from compact discs to PC files. You can save CD audio tracks to CD-quality WAV files or encode them to OGG Vorbis, Wma, MP3 or Flac compressed audio formats. It can also convert audio files from/to WMA, Wav, MP3, Vorbis and Flac. FreeRip supports ID3v1/v2 tagging and CD-Text. Now it includes integrated support for download CD info from FreeRIP Cd Database or freedb.org. Moreover FreeRIP includes a search shortcut menu, to help you find images, videos, information and lyrics about current artist or track. Supports multiple languages (English, Italian, German, Spanish, Portuguese, Turkish, Catalan, Norwegian...) FreeRIP version 3 supports extended tagging and ID3 v2 standard and it also provides access to FreeRIP CD Database, an Open Source, collaborative CD info repository.

CD to MP3 Converter

This CD ripper allows you to extract audio files from a CD and convert them to MP3, WAV, OGG or WMA formats. It connects to the CDDB database to automatically retrieve title information, and it can save output filenames based on the track. It supports ID3 tag editing and additional Lame options. You can record to the MP3 format with your microphone or convert WAV files to MP3, OGG or WMA files. The program also supports the normalization of audio files.

Expstudio Audio Editor Free

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.

 Free Video to MP3 Converter

Use Free Video to MP3 Converter to extract audio from video files (*.avi, *mpg, *.mpg, *.mp4, *.wmv, *.asf, *.mov, *.qt, *.3gp, *.3g2 and *.flv) and save it as MP3. You can convert the whole file to MP3 or just a partition of a movie. It's safe to install and run.