首页>
外国专利>
Speech synthesizer employing post-processing for enhancing the quality of the synthesized speech
Speech synthesizer employing post-processing for enhancing the quality of the synthesized speech
展开▼
机译:语音合成器,采用后处理来提高合成语音的质量
展开▼
页面导航
摘要
著录项
相似文献
摘要
A post-processor 317 and method substantially for enhancing synthesised speech is disclosed. The post-processor 317 operates on a signal ex(n) derived from an excitation generator 211 typically comprising a fixed code book 203 and an adaptive code book 204, the signal ex(n) being formed from the addition of scaled outputs from the fixed code book 203 and adaptive code book 204. The post-processor operates on ex(n) by adding to it a scaled signal pv(n) derived from the adaptive code book 204. A gain or scale factor p is determined by the speech coefficients input to the excitation generator 211. The combined signal ex(n)+pv(n) is normalised by unit 316 and input to an LPC or speech synthesis filter 208, prior to being input to an audio processing unit 209.
展开▼