首页>
外国专利>
on the basis of adaptive postfiltertechnik yule - walkerfilters
on the basis of adaptive postfiltertechnik yule - walkerfilters
展开▼
机译:基于自适应postfiltertechnik yule-Walkerfilters
展开▼
页面导航
摘要
著录项
相似文献
摘要
An adaptive time-domain post-filtering technique is based on the modified Yule-Walker filter. This technique eliminates the problem of spectral tilt in speech spectrum that can be applied to various speech coders. The new post-filter has a flat frequency response at the formant peaks of speech spectrum. Information is gathered about the relation between poles and formants and then the formants and their bandwidths are estimated. The information about the formants and their bandwidths is then used to design the modified Yule-Walker filter based on a least squares fit in time domain.
展开▼