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Conference Paper: A mixed excitation LPC vocoder operating at very low bit rate

TitleA mixed excitation LPC vocoder operating at very low bit rate
Authors
Issue Date1997
PublisherIEEE.
Citation
The 6th IEEE International Conference on Universal Personal Communications Record, San Diego, CA., 12-16 October 1997. In Conference Proceedings, 1997, v. 2, p. 406-409 How to Cite?
AbstractThis paper presents a 1.2 kb/s mixed LPC vocoder based on multiband excitation (MBE) model. The vocoder extracts the pitch by a robust and efficient tracking algorithm. The cut-off frequency, which is a fundamental parameter in a mixed excitation system, is obtained by the v/uv decision of MBE analysis. In order to reduce the bit rate, the coder has used frame interpolation between neighboring frames. A fast and reliable linear interpolation algorithm is proposed. Informal listening tests indicate that for either clean speech or telephone speech, the synthesized speech sounds natural and intelligible, and the quality is better than that of 2.4 kb/s LPC-10e standard.
Persistent Identifierhttp://hdl.handle.net/10722/54067

 

DC FieldValueLanguage
dc.contributor.authorMao, JSen_HK
dc.contributor.authorChan, SCen_HK
dc.contributor.authorHo, KLen_HK
dc.date.accessioned2009-04-03T07:35:52Z-
dc.date.available2009-04-03T07:35:52Z-
dc.date.issued1997en_HK
dc.identifier.citationThe 6th IEEE International Conference on Universal Personal Communications Record, San Diego, CA., 12-16 October 1997. In Conference Proceedings, 1997, v. 2, p. 406-409en_HK
dc.identifier.urihttp://hdl.handle.net/10722/54067-
dc.description.abstractThis paper presents a 1.2 kb/s mixed LPC vocoder based on multiband excitation (MBE) model. The vocoder extracts the pitch by a robust and efficient tracking algorithm. The cut-off frequency, which is a fundamental parameter in a mixed excitation system, is obtained by the v/uv decision of MBE analysis. In order to reduce the bit rate, the coder has used frame interpolation between neighboring frames. A fast and reliable linear interpolation algorithm is proposed. Informal listening tests indicate that for either clean speech or telephone speech, the synthesized speech sounds natural and intelligible, and the quality is better than that of 2.4 kb/s LPC-10e standard.en_HK
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofInternational Conference on Universal Personal Communications-
dc.rights©1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleA mixed excitation LPC vocoder operating at very low bit rateen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailChan, SC: scchan@eee.hku.hken_HK
dc.identifier.emailHo, KL: klho@eee.hku.hken_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/ICUPC.1997.627196en_HK
dc.identifier.hkuros36746-

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