Applications
There is already a large base of applications supporting the Speex codec, from streaming applications like teleconference (e.g. TeamSpeak; many servers prefer Speex due to its good quality), to VoIP systems (e.g. Asterisk), to videogames (e.g. Xbox Live, Civilization 4) and audio processing applications. Most of these are based on the DirectShow filter or OpenACM codec (e.g. Microsoft NetMeeting) on Microsoft Windows, or Xiph.org's reference implementation, libvorbis, on Linux (e.g. Ekiga). There are also plugins for many audio players. See the plugin and software page on the speex.org site for more details.
The media type for Speex is audio/ogg while contained by Ogg, and audio/speex (previously audio/x-speex) when transported through RTP or without container.
The United States Army's Land Warrior system, designed by General Dynamics, also uses Speex for VoIP on an EPLRS radio designed by Raytheon.
The Ear Bible is a single-ear headphone with a built-in Speex player with 1 GB of flash memory, preloaded with a recording of the New American Standard Bible.
ASL Safety & Security's Linux based VIPA OS software which is used in long line public address systems and voice alarm systems at major international air transport hubs and rail networks.
The Rockbox project uses Speex for its voice interface. It can also play Speex files on supported players, such as the Apple iPod or the iRiver H10.
The Vernier LabQuest handheld data acquisition device for science education uses Speex for voice annotations created by students and teachers using either the built-in or an external microphone.
The Google Mobile App for iPhone currently incorporates Speex. It has also been suggested that the new Google voice search iPhone app is using Speex to transmit voice to Google servers for interpretation.
Adobe Flash Player supports Speex starting with Flash Player 10.0.12.36, released in October 2008. Because of some bugs in Flash Player, the first recommended version for Speex support is 10.0.22.87 and later. Speex in Flash Player can be used for both kind of communication, through Flash Media Server or P2P. Speex can be decoded or converted to any format unlike Nellymoser audio, which was the only speech format in previous versions of Flash Player. Speex can be also used in the Flash Video container format (.flv), starting with version 10 of Video File Format Specification (published in November 2008).
The JavaSonics ListenUp voice recorder uses Speex to compress voice messages that are recorded in a browser and then uploaded to a web server. Primary applications are language training, transcription and social networking.
Speex is used as the voice compression algorithm in the Siri voice assistance on the iPhone 4S. Since text-to-speech occurs on Apple's servers, the Speex codec is used to minimize network bandwidth.
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