Open Source Speech Software

Ever wanted to cut out background noise when talking with others on Skype? Now it's possible! NoiseGator is a light-weight noise gate application that routes audio through an audio input to an audio output. In real-time the audio level is analysed and if the average level is higher than the threshold the audio bypasses as normal. However, if the average level goes below the threshold, the gate closes and the audio is cut. When used with a virtual audio cable it can act as a noise gate for a either a sound input(microphone) or sound output(speakers). Can also be used to gate noise from your own mic or play your microphone through your speakers. REQUIREMENTS: - Java 7 or higher for Windows. - Java 6 or higher for Mac. Java 7 recommended. - A virtual audio cable is required for use with VOIPs: For Windows users I recommend the VB-Cable driver (http://vb-audio.pagesperso-orange.fr/Cable/index.htm). Mac users can use SoundFlower.

The Open VXI VoiceXML interpreter is a portable open source library that interprets the VoiceXML dialog markup language. It is designed to serve as a reference for parties interested in understanding how VoiceXML markup might be executed.

Free Open Source VoiceXML editor programmed in Java (Swing). The VoiceXML document is regularly parsed, a tree view is built and syntax errors are reported in a specific table.

BladeWareVXML is a portable VoiceXML 2.1 interpreter that is an enhanced version (performance, usability and integration) of OpenVXI. A commercial version, with documentation, sample code, and support options, is available from the Commetrex Website.

Cairo sets out to provide an enterprise grade, MRCPv2 compliant speech solution utilizing existing open source speech resources such as FreeTTS and Sphinx-4.

A complete Delphi/Kylix based interface for Dialogic hardware using the System Release 5.0 or higher.

GibPhone is a highly extensible VoIP/IM client for the .NET framework that uses a powerful plugin engine to allow for UI extensions and any call control stack / media payload / transport protocol combination.

JAVIER is a JAvascript Voicexml InterpretER, designed (but not restricted) to run inside a web browser, its main engine has less than 1000 lines of code. It's maybe, the tiniest but (almost) FULL VoiceXML implementation.

The MRCPv2 protocol is designed to allow client devices to control media processing resources, such as speech recognition engines. MRCP4J provides a Java API that encapsulates the MRCPv2 protocol and can be used to implement MRCP clients and/or servers.

Implementation of Media Resource Control Protocol Client (MRCP). Supports ASR and TTS functionality. Design pattern implementation. Documentation, sample application and library source code.

This project is to make a open source WiFI phone software. It includes open source VoIP signaling module,P2PSIP module, GUI, Wifi module and all WiFi phone related intersting functions. Welcome to join us!

PHP based Viewer for Voice Servers like Mumble.

PJSGUA is an Open Source SIP UAC based on PJSUA reference UAC from PJSIP project

PhoneBlogger allows you to post to a weblog by phone. PhoneBlogger is written in VoiceXML, Python, and JavaScript.

SRFSurvey is a Java application for doing telephone surveys using VoiceXML, and using the SpeakRight Framework for dynamic VoiceXML from Java. SRFSurvey is data-driven by an XML file that specifies the survey questions.

SoccerPhone provides lives soccer scores by phone. The only league currently supported is US Major League Soccer. Support for Soccernet is under development. SoccerPhone is written in VoiceXML, Python, and JavaScript.

The SpeakRight Framework is a speech application framework written in Java. SpeakRight applications are fast to create and work on any (VoiceXML) speech platform. Applications are written in Java with full debug and unit testing available.

A plugin for Teamspeak3. This plugin allows you to follow a user while he switches through channels. For the love menu just right click any name in the server view.

A Python library to create sophisticated multilingual IVR applications. NOTICE. The repository is frozen, please find the latest version of the software at https://github.com/sippy/vapp

VoiFax is a program that manage voice/data/fax modem in the same manner of vgetty and mgetty.VoiFax is thinking for use in the small businness as in the enterprises. It is fully compatible with vgetty scripts and manage (via efax) modem fax 1.0/1.1/2.0

Time of day service over telephone using Voicent Gateway, a VoiceXML gateway that specially designed for voice modems. A Free version is available for download at http://www.voicent.com/download. Sample code for interactive telephony applications.

VoxForge collects user-submitted speech audio files for the creation of Acoustic Models for Free and Open Source Speech Recognition Engines such as HTK, Julius, ISIP and Sphinx.

Zanzibar is a complete, standards based IVR. It includes an MRCPv2 Server with ASR and TTS engines as well as an voiceXML interpreter so that you can deploy and run voiceXML applications. It integrates with VOIP PBX’s (like Asterisk) using SIP and RTP.

eSpeak text-to-speech module for Asterisk. This provides the "espeak" dialplan application, which allows you to use the eSpeak TTS Engine as a speech synthesizer in Asterisk.

Flite text-to-speech module for Asterisk. This provides the "Flite" dialplan application, which allows you to use the Flite TTS Engine as a speech synthesizer in Asterisk.