Spanning the 4 kbps divide using pulse modeled residual

Authors

J Lukasiak, University of WollongongFollow
I. Burnett, University of WollongongFollow

RIS ID

7900

Publication Details

This article was published as: Lukasiak, J & Burnett, I, Spanning the 4 kbps divide using pulse modeled residual, IEEE Workshop Proceedingson Speech Coding, 6-9 October 2002, 20-22. Copyright IEEE 2002.

Abstract

This paper reports a scalable method for coding the LP residual. The scalable method is capable of increasing the accuracy of the reconstructed speech from a parametric representation at low rates to a more accurate waveform matched representation at higher rates. The method entails pitch length segmentation, decomposition into pulsed and noise components and modeling of the pulsed components using a fixed shape pulse model in a closed-loop, analysis by synthesis system.