1)   Speech Engine DLL SDK 5.01
Start recognizing voice commands in any spoken language. From writing a simple voice commands recognition program to a VoiceXML PC-To-PC Interactive Voice Response, English Language is no more a programmers only limit.
Scansoft Speech Engines, ViaVoice IBM, Sphinx, ISIP ASR, SAPI, LumenVox, Chant, SpeechWorks, Ectaco, Embedded Speech Recognizer,

 2)   TTS Builder 5.5
TTSBuilder allows engineers to create their own Text To Speech Voice or Language using High Quality Festival Speech Synthesis Research. A complete step-by-step manual for such a creation is included in the retail version.
Text to Speech, Festival, Fonix, Mbrola, Cepstrul, Scansoft, Text To Mp3, Audio, Wave, Speech synthesis,