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SoX is a cross-platform (Windows, Linux, MacOS X, etc.) 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, and, as an added bonus, SoX can play and record audio files on most platforms.

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Latest version

14.4.2 (February 22, 2015)


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Download SoX 14.4.2 Windows  3MB  Win

Download SoX 14.4.2 Mac  1MB  Mac

Download SoX 14.4.2 Linux  914KB  Linux

Download Portable and other versions

Download SoX 14.4.2 Portable Windows  3MB  Win  Portable

Download old versions

Download SoX old versions

Software License

Free software / FOSS (Free download and also Free and Open Source Software)

Supported operating systems

WinWindows MacMac OS LinuxLinux

More information and other downloads

Version history / Release notes / Changelog / What's New


Previously deprecated features that have been removed in this release:

Deprec- Feature [O(ption)]
ated in [F(ormat)] [E(ffect)] Replacement
------- ---------------------- ----------------------
14.3.0 O -1/-2/-3/-4/-8 -b
14.3.0 O -s/-u/-f -e
14.3.0 O -A/-U/-o/-i/-a/-g -e
14.4.0 E swap with parameters remix
14.4.0 E mixer remix
14.4.1 OpenMP < 3.0 OpenMP >= 3.0
14.4.1 F ffmpeg ffmpeg/avconv via pipe

File formats:

o Add optional support for reading Ogg Opus files. (John Stumpo)
o Fix for max size text chunks in aiff files. (cbagwell)
o Add reading support for RF64 WAV files. (Dave Lambley)
o Work around for libsndfile created RF64 files with invalid
sizes. (Dave Lambley)
o Detect MS ADPCM WAV files with invalid blocks. (cbagwell)
o Detect Sphere files with invalid header sizes. (cbagwell)


o 'Deemph' can now also be used at 48kHz sample rate. (robs)
o 'Rate' now much faster in many cases. (robs)
o Allow sending spectrograms to stdout. (Ulrich Klauer)
o Allow use of Dolph window with spectrograms. (robs)
o Allow mixing time and sample-count arguments for the delay
effect, and for spectrogram -S and -d. (Ulrich Klauer)
o Support multi-channel LADSPA plugins. (Eric Wong)
o Support infinite repetition with repeat. (Ulrich Klauer)
o Improved pink noise frequency response in synth. (robs)
o Extended syntax for specifying audio positions to several
effects. (Ulrich Klauer)
o Fix integer overflow in mcompand. [3590093] (Guido Aulisi)
o Add optional latency compenstation for LADSPA plugins. (Eric Wong)

Other new features:

o New -p option for soxi to display sample precision. (Ulrich Klauer)
o New libsox example6: give explicit output attributes. (robs)

Internal improvements:

o Speed optimization for effects that operate on channels
independently. (Ulrich Klauer)
o Fix memory leaks. (Ulrich Klauer)
o Most internal symbols (lsx_*) are no longer exported. (Ulrich Klauer)

View full changelog

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Guides and How to's

Acronyms / Also Known As

Sound eXchange

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Our hosted software are virus and malware scanned with several antivirus programs using (NOTE! Just one virustotal warning is 99.9% a false positive. And some software might receive 2-6 warnings but it's if they are not all same virus/trojan then it's 99% false positives.)

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