studiotoolz♥

Welcome to the home of SoX, the swiss army knife of sound processing programs. SoX is a command line utility that can convert various formats of computer audio files in to other formats. It can also apply various effects to these sound files during the conversion. As an added bonus, SoX can play and record audio files on several unix-style platforms.
General Information

Sox is a general purpose sound converter/player/recorder that supports the following formats:

RAW sound data in various data styles
RAW textual sound data
Amiga 8svx files
Apple/SGI AIFF files
SUN .au files
PCM, U-law, A-law, G7xx ADPCM files
mutant DEC .au files
NeXT .snd files
AVR files
CD-R data (music CD format)
CVS and VMS files (continous variable slope)
GSM raw data (with optional library)
Macintosh HCOM files
Amiga MAUD files
MP3 files (with optional external library)
Psion Record.app files
IRCAM SoundFile files
NIST SPHERE files
Turtle beach SampleVision files
Soundtool (DOS) files
Yamaha TX-16W sampler files
Sound Blaster .VOC files
Dialogic/OKI ADPCM .VOX files
Ogg Vorbis files
Microsoft .WAV files
PCM, U-law, A-law, MS ADPCM, IMA ADPCM, GSM (optional), RIFX (big endian)
Psion (palmtop) A-law .WVE files
Record and Play from OSS or ALSA /dev/dsp and Sun /dev/audio.
nul file type that reads and writes from/to nothing.

The following effects can be applied to sound data:

Channel averaging, duplication, and removal
Band-pass filter
Band-reject filter
Compress and Expand (compand) the dynamic range of samples
Chorus effect
DCShift audio
Deemphases filter
Move soundstage to front of listener.
Add an echo or sequence of echos
Fade in or out
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
Multi-band Compander
Pan sound between channels
Apply a phaser effect
Change the pitch of a sound file without affecting its speed.
Change sampling rates using several different algorithms.
Repeat audio data
Apply a reverb effect
Reverse sound samples (to search for Satanic messages :)
Detect periods of silence and start and stop processing based on it
Change the speed of samples being played (without affecting pitch)
Display general stats on sound samples
Stretch/shorten the duration of a sound file.
Swap stereo channels
Create sounds with a simple synthesizer
Trim audio data from beginning and end of file.
Add the world-famous Fender Vibro-Champ effect
Adjust volume of samples.

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http://sox.sourceforge.net/ (667 clicks)

filed under the Audio Editors, Format Converters, Utility category.