Speech Synthesis

Advanced Technology and Research
Markets a variety of speech products for industry including voiceprint, text to speech and airport security systems. Good online text to speech demo.
http://www.atr.net/

Analogue Speech Synthesizers
Reviewing Vocoders and musical chorus synthesizers by EMS, Moog, Roland, Korg, and Electro Harmonics, talking chips (Votrax, TI) and speech recognition hardware. Information site rather than sales.
http://web.inter.nl.net/hcc/davies/vocpage.htm

Audio Generator for the web
Site offers technique to add your own voice to web pages and e-mails.
http://audiogenerator.com/

CompSpeak 2050
Institute for the Study of Talking Computers and Oral Culture. The Institute's mission is to study the social, cultural, and philosophical implications of talking computers and voice recognition technology. Site taking orders for a pre-publishing book having a provocative viewpoint on the impact of talking computers.
http://www.compspeak2050.org

Demonstrations of Simulated Emotional Speech
Collection of links and sound-examples of simulated emotional speech by synthesis.
http://emosamples.syntheticspeech.de/

Digalo TTS engine
Text-To-Speech engine for Microsoft Agent and SAPI compliant applications. Available in 7 languages (French, German, Spanish, US English, British, Russian, Brazilian Portuguese). Licensed Elan TTS-engine. Download free trial.
http://www.digalo.com

Emofilt
Prosody-filter to simulate emotional arousal with speech synthesis based on the free-for-non-commercial-use MBROLA synthesis engine available in Java.
http://emofilt.sourceforge.net/

ETeX AG - Text-To-Speech & Voice Recordings
German firm selling text-to-speech solutions, based on unit selection and diphones. ETeX uses its recording studio (specialized for voice recordings) for text-to-speech voices, voice prompts, and spoken manuals.
http://www.etex.de

German text-to-speech systems
A commented overview of commercial and scientific TTS (text-to-speech) -systems for the German language with examples.
http://ttssamples.syntheticspeech.de

InfoQuick Software Technology Corp.
Focus on speech technology research and development in Chinese language, including TTS and ASR.
http://www.infoquick.com.cn

Introduction to the Java Speech API
A short introduction to speech synthesis with the Java speech API 1.0
http://ociweb.com/jnb/jnbMar2006.html

Moehler's Speech Synthesis Examples
Commented examples of speech synthesis for 25 languages.
http://www.ims.uni-stuttgart.de/~moehler/synthspeech/examples.html

NeXTeNS: Text-to-Speech for Dutch
The NeXTeNS project aims at developing a modern, clean, multi-platform, open source text-to-speech system for Dutch that is freely available for research and education purposes using Mbrola and Festival components. Initiated by University of Nijmegen and the University of Tilburg.
http://nextens.uvt.nl/

Phobos Soft
Provides a speech synthesizer for the Romanian language, and audio applications for speech/music effects. On-line speech synthesizer demo.
http://www.phobos.ro/

RC Systems
Text to speech synthesis products. Boards, modules, and chips. Downloadable data sheets and product information.
http://www.rcsys.com

Sayvoice
Provides text to speech software for natural voice. Online demo, screen shots, and voice samples.
http://www.sayvoice.com/

Speech and Software Technologies (I) Pvt. Ltd.
One of India's global IT services and product-engineering companies, providing a wide range of speech-based IT solutions such as automatic speech recognition, text-to-speech synthesis, computer telephony, IVR, speaker verification and a version of IBM ViaVoice customized for an Indian accent.
http://www.sstil.com

Speech Synthesis
Overview article from free encyclopedia Wikipedia.
http://en.wikipedia.org/wiki/Speech_synthesis

Speech Synthesis Markup Language
The current version of the (draft) proposal for an XML-based Speech Synthesis Markup Language, as part of the W3C's Speech Interface Framework. This is an industry standard in the making.
http://www.w3.org/TR/speech-synthesis/

SpeechArabia
Provides Arabic / multi language voice interface solutions, for individuals and corporate. Initial offerings focus on tect to speech applications.
http://www.speecharabia.com

SpokenText.net a free online text to audio converter
Convert Microsoft Word, Acrobat PDF, PowerPoint, plain text files, web pages, and emails to spoken audio which you can then listen to online or transfer to your iPod. News, tutorials, and product features.
http://www.spokentext.net/

TalkingOnline.com
Online speech-synthesizer with very limited capabilities.
http://www.talkingonline.com

text-talk
Offers limited English and Lithuanian TTS over Web interface with Mbrola speech engine.
http://www.text-talk.com

Text-to-Speech, Occidental Communications
Directory of TTS links.
http://www.occidental.com.au/tts.html

Tutorial On Speech Synthesis
Interactive tutorial of speech synthesis technology by German university.
http://www.ias.et.tu-dresden.de/sprache/lehre/multimedia/tutorial/rahmen.htm

Voice Synthesis IC and Speech Synthesizer chips
TextSpeak(tm) speech synthesis chip sets and plug-in modules accept RS-232 text, keyboard and wireless input. Low cost, unlimited vocabulary, designed for consumer and VARs. Purchase online.
http://www.textspeak.com/oemtts.htm

Web Site Speech Plug-in
Site provides a free, cross platform (Windows and MacOS), cross browser (Netscape and IE) plug-in that gives web sites the ability to talk by transforming text to speech.
http://www.speaksforitself.com