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专利名称：Speech-quality assessment method and
apparatus that identifies part of a signal notgenerated by human tract
发明人：Philip Gray,Michael P Hollier申请号：US11321045申请日：20051230公开号：US08682650B2公开日：20140325
专利附图：
摘要：Non-intrusive speech-quality assessment uses vocal-tract models, in particularfor testing telecommunications systems and equipment. This process requires reduction
of the speech stream under assessment into a set of parameters that are sensitive to thetypes of distortion to be assessed. Once parameterized, the data is used to generate aset of physiologically-based rules for error identification, using a parametric modeling ofthe shape of the vocal tract itself, by comparison between derived parameters and theoutput of models of physiologically realistic forms for the vocal tract, and the applicationof physical constraints on how these can change over time.
申请人：Philip Gray,Michael P Hollier
地址：Ipswich GB,St Martin GB
国籍：GB,GB
代理机构：Fenwick & West LLP
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