Speech Synthesis & Analysis Software

• CVoiceControl speech recognition system for KDE and X from Daniel Kiecza (replaces his KVoiceControl)
• Emacspeak a speech output system for Emacs
• Emu "...a collection of software for the creation, manipulation and analysis of speech databases"
• Festival
  • Festival speech synthesis system
  • Festvox a suite of tools for building synthesized voices for Festival
  • Flinger a MIDI-to-speech synthesis system based on the Festival package
  • Flite a light-weight alternative to Festival for voices built using FestVoxi
  • TkFestival nice Tk GUI for Festival
• FreeTTS Java-based text to speech synthesis
• GVoice adds voice control to Gtk/GNOME applications
• IMPSKE GUI for Klatt formant synthesis algorithms
• ISIP Speech Recognition Toolkit lists many other interesting speech-to-text tools
• Kalman Filtering and Speech Enhancement software and a diploma thesis by Jan Kybic
• KPE80 Klatt speech synthesis GUI
• KTTS the excellent KDE text-to-speech synthesis system
• LiarLiar voice stress detection software
• MBROLA
  • MBROLA easy-to-use CLI speech synthesis project
  • MBRDICO talking dictionary using MBROLA for speech synthesizer
• Open Mind Speech speech recognition for Linux, formerly known as FreeSpeech
• Open-Source Speech Recognition Initiative (OSSRI) a new project that intends to "... develop continuous-speech recognition software with command-and-control functionality that runs on Open Source platforms such as Linux"
• Praat "...a comprehensive speech analysis, synthesis, and manipulation package" for phoneticians and other sound researchers
• Puh Editor "... a tool for collaborative annotation of multimodal spoken language resources", requires the SNACK audio toolkit
• Screader a software/hardware screen-reader for the visually impaired
• SFS Speech Filing System, excellent set of X-based and command-line tools (see FTP archive for UNIX/Linux versions)
• Speakup allows a blind user to hear all output directed to the console, currently supports only the Double Talk internal synthesizer
• Speech Links a formidable collection of speech-related WWW, ftp, and newsgroup links
• Speex patent-free codec designed especially for speech
• Sphinx open-source speech recognition from CMU
• Sprachsynthese unter Linux speech synthesis with Linux, an excellent article by Michael Renner (text in German)
• Transcriber "...a free tool for segmenting, labeling and transcribing speech", requires the Snack package
• VoiceApp "program to visualize sound waves via FFT"
• Voxpak is "a GUI for playing, editing, renaming etc. voice and fax messages"
• XVoice "..enables continuous speech to text dictation for many X applications"
• comp.speech very informative Web page with FAQ
• rsynth
  • rsynth the venerable speech synthesizer, required by many TTS readers
  • rsynth on SourceForge provides sources under the Artistic License and the GPL
• speechd-el Emacs speech output interface from Milan Zamazal
• spwave "a speech file editor supporting several sound formats"