Vector sum codebook structure for variable rate coding

Wen-Whei Chang, Jehng Yih Liour

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Recent applications in integrated network and secure communication necessitate the development of flexible speech, coding techniques under adverse channel conditions. In this paper, we explore the vectorsum innovation codebook structure in conjunction with dynamic bit allocation strategy to develope an efficient variable rate speech coding system. Design algorithms for optimizing the basic innovation codevectors are described first. We then propose a dynamic bit allocation using the threshold decision rule to emphasize the locally important phonetic features. Furthermore, the linear prediction parameters are efficiently quantized by exploiting the inherent ordering relationship among the line spectrum pair parameters.

Original languageEnglish
Title of host publicationProceedings - Singapore ICCS/ISITA 1992
Subtitle of host publication''Communications on the Move''
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)0780308034, 9780780308039
StatePublished - 1 Jan 1992
Event1992 Singapore: Communications on the Move, ICCS/ISITA 1992 - Singapore, Singapore
Duration: 16 Nov 199220 Nov 1992

Publication series

NameProceedings - Singapore ICCS/ISITA 1992: ''Communications on the Move''


Conference1992 Singapore: Communications on the Move, ICCS/ISITA 1992

Fingerprint Dive into the research topics of 'Vector sum codebook structure for variable rate coding'. Together they form a unique fingerprint.

Cite this