In this paper we present work that has been carried out in developing the ETSI Extended DSR standards ES 202 211 and ES 202 212 [1][2]. These standards extend the previous ETSI DSR standards: basic front-end ES 201 108 and advanced (noise robust) front-end ES 202 050 respectively. The extensions enable enhanced tonal language recognition as well as server-side speech reconstruction capability. This paper discusses the client-side estimation of pitch and voicing class parameters whereas a companion paper discusses the server-side speech reconstruction. Experimental results show enhancement of tonal language recognition rates of proprietary recognition engines, when the standard extensions are used.
By: Alexander Sorin, Tenkasi Ramabadran, Dan Chazan, Ron Hoory, Michael McLaughlin, David Pearce, Fan C. R. Wang, Yaxin Zhang
Published in: H-0199 in 2003
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