A digital speech synthesis process in which utterances in a language are recorded, and the recorded utterances are divided into speech segments which are stored so as to allow their allocation to specific phonemes. A text which is to be output as speech is converted to a phoneme chain and the stored...http://www.google.com.hk/patents/US6308156?utm_source=gb-gplus-share專利 US6308156 - Microsegment-based speech-synthesis process