Version14(as of 5/7/2015)
PlatformsWindows, Mac, Linux
LicenseOpen Source
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Rating:2.7  |  7 Votes

Main Features

  • Convert various audio formats to other formats, such as .AU, .MP3, and .AVI
  • Apply many different effects to your audio, including filtering out noise and changing the tempo
  • Subscribe to their mailing list to discuss SoX-related topics with other users

Software Overview

SoX, which stands for Sound eXchange, is an open source, cross-platform digital audio editor. The program is written in standard C and features a command-line interface.

SoX is dubbed the "Swiss Army knife of sound processing programs" by some users because of its ability to convert various computer audio formats to other formats, such as .MP4, .AVI, .AAC, .VOC, .8SVX, .C01, .GSM, and .SPH. The program also gives you the ability to apply effects to the audio files, such as changing the tempo, reversing the audio, filtering out noise, swapping stereo channels, and adding an echo. To get more involved with the program, SoX provides an active community of users as you can subscribe to a SoX users mailing list to discuss SoX-related topics with other users.

Sox is a free program used by a variety of users, some that just need to convert a file from one sampling rate to another rate and others that want to apply effects to their audio. If you are comfortable working with a command line interface, SoX provides some helpful audio editing and file converting capabilities.

Primary File Type

avi icon.AVIAudio Video Interleave File

Supported File Types

ExtensionFile Type
.AVIAudio Video Interleave File
.8SVXAmiga 8-Bit Sound File
.AACAdvanced Audio Coding File
.AC3Audio Codec 3 File
.AMRAdaptive Multi-Rate Codec File
.AUSun Microsystems Audio File
.AVRAudio Visual Research File
.C01Typhoon Wave Audio File
.FLACFree Lossless Audio Codec File
.GSMGlobal System for Mobile Audio
.MP2MPEG Layer II Compressed Audio File
.MP3MP3 Audio
.MP4MPEG-4 Video
.OGGOgg Vorbis Audio
.UBUnsigned Byte Audio File
.VOCCreative Labs Audio File
.VOXDialogic Voice Audio File
.WMVWindows Media Video
Updated 5/7/2015