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Conference Paper: SELECTIVE MODELING OF THE LPC RESIDUAL DURING UNVOICED FRAMES: WHITE NOISE OR PULSE EXCITATION.

TitleSELECTIVE MODELING OF THE LPC RESIDUAL DURING UNVOICED FRAMES: WHITE NOISE OR PULSE EXCITATION.
Authors
Issue Date1986
Citation
Icassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 1986, p. 3087-3090 How to Cite?
AbstractThe authors present a method of modeling the LPC residual during unvoiced speech for voice coding at 4. 8 k/s. Speech is synthesized using one of three excitation types: periodic pitch pulses, random noise, or multipulse. By using multipulse excitation, it is possible accurately to produce speech which is difficult to model using noise and pitch pulses alone. Since multipulse is only used where appropriate, efficient suboptimal methods of calculating the pulse amplitudes and positions are adequate, simplifying the implementation as a real-time system. The synthetic speech may be coded at 4. 8 kb/s since multipulse, used only where appropriate, suffers little quality loss when quantized. A method of determining which excitation type is to be used is discussed. Formal listening test results are also presented.
Persistent Identifierhttp://hdl.handle.net/10722/179565
ISSN

 

DC FieldValueLanguage
dc.contributor.authorThomson, David Len_US
dc.contributor.authorPrezas, Dimitrios Pen_US
dc.date.accessioned2012-12-19T09:59:53Z-
dc.date.available2012-12-19T09:59:53Z-
dc.date.issued1986en_US
dc.identifier.citationIcassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 1986, p. 3087-3090en_US
dc.identifier.issn0736-7791en_US
dc.identifier.urihttp://hdl.handle.net/10722/179565-
dc.description.abstractThe authors present a method of modeling the LPC residual during unvoiced speech for voice coding at 4. 8 k/s. Speech is synthesized using one of three excitation types: periodic pitch pulses, random noise, or multipulse. By using multipulse excitation, it is possible accurately to produce speech which is difficult to model using noise and pitch pulses alone. Since multipulse is only used where appropriate, efficient suboptimal methods of calculating the pulse amplitudes and positions are adequate, simplifying the implementation as a real-time system. The synthetic speech may be coded at 4. 8 kb/s since multipulse, used only where appropriate, suffers little quality loss when quantized. A method of determining which excitation type is to be used is discussed. Formal listening test results are also presented.en_US
dc.languageengen_US
dc.relation.ispartofICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedingsen_US
dc.titleSELECTIVE MODELING OF THE LPC RESIDUAL DURING UNVOICED FRAMES: WHITE NOISE OR PULSE EXCITATION.en_US
dc.typeConference_Paperen_US
dc.identifier.emailThomson, David L: dthomson@hku.hken_US
dc.identifier.authorityThomson, David L=rp00788en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0022905648en_US
dc.identifier.spage3087en_US
dc.identifier.epage3090en_US
dc.identifier.scopusauthoridThomson, David L=7202586830en_US
dc.identifier.scopusauthoridPrezas, Dimitrios P=6602510241en_US

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