sox is a general purpose sound converter/player/recorder that supports the following formats: 
sox-12.17.1: description + notes
- RAW sound data in various data styles
 - RAW textual sound data
 - Microsoft .WAV files
 
- PCM, U-law, A-law, MS ADPCM (read only), IMA ADPCM (read only)
 - MAUD files
 - Sound Blaster .VOC files
 - IRCAM SoundFile files
 - SUN .au files
 
- PCM, U-law, A-law, G7xx ADPCM files
 
- mutant DEC .au files
 - Apple/SGI AIFF files
 - CD-R data (music CD format)
 - GSM raw data (with optional library)
 - Macintosh HCOM files
 - Sounder files
 - NeXT .snd files
 - Soundtool (DOS) files
 - Psion (palmtop) A-law files
 - Record and Play from OSS or ALSA /dev/dsp and Sun /dev/audio.
 The following effects can be applied to sound data:
- Channel Averaging
 - Band-pass filter
 - Chorus effect
 - Cut out loop samples
 - Add an echo or sequence of echos
 - Apply a flanger effect
 - Apply a high-pass filter
 - Apply a low-pass filter
 - Display a list of loops in a file
 - Add masking noise to a signal
 - Apply a phaser effect
 
- Convert from stereo to mono
 - Swap Stereo channels
 - Change sampling rates using several different algorithms
 - Apply a reverb effect
 - Reverse sound samples (to search for Satanic messages :)
 - Convert from mono to stereo
 - Display general stats on sound samples
 - Add the world-famous Fender Vibro-Champ effect
 For more information see the SoX Home Page, as well as the
soxman page and the files in/usr/freeware/doc/sox.
To auto-install this package, go back and click on the respective install icon.