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Speech compression format

The Speex project aims to build a patent-free voice codec. Unlike codecs like MP3 and Ogg Vorbis, Speex is specially designed for compressing voice at low bit-rates (in the 8-32 kbps/channel range) for applications such as voice over IP (VoIP). Other possible applications include Internet audio streaming at low bit-rate, and archiving of speech data (e.g. voice mail). The Xiph.org license under which this software is released is similar to a revised BSD license.



Heckert gnu.small.png This is a GNU package:speex



version 1.2.0 (stable)
released on 7 December 2016

VCS Checkout

password: anoncvs


Related Projects


LicenseVerified byVerified onNotes
License:XiphJanet Casey11 July 2002

Leaders and contributors

Jean-Marc Valin Maintainer

Resources and communication

AudienceResource typeURI
DeveloperMailing List Subscribemailto:speex-dev-request@xiph.org
DeveloperMailing List Info/Archivehttp://www.xiph.org/archives/
Debian (Ref)https://tracker.debian.org/pkg/speex
Savannah (Ref)https://savannah.gnu.org/projects/speex
Python (Ref)https://pypi.org/project/speex
DeveloperVCS Repository Webviewhttp://xiph.org/cvs.html

Software prerequisites

Weak prerequisiteautomake
Weak prerequisitelibtool (all three for building from CVS)
Weak prerequisitelibogg (for command line executables)
Weak prerequisiteautoconf

This entry (in part or in whole) was last reviewed on 13 April 2018.


"Debian (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

"Savannah (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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