A practical object oriented programming approach for implementing real-time speech compression algorithm

Author

Wong, Lawrence Y L

Author_Institution

Hong Kong Design Centre, Tsimshatsui, Hong Kong

fYear

1994

fDate

13-16 Apr 1994

Firstpage

614

Abstract

A practical approach for developing a system incorporated with real-time speech compression are presented. This is a technique used in practice within the industrial sector for selecting and integrating DSP functionality into a large system. A three-stage technique is used to simulate, evaluate, debug and implement the CCITT G.728 low delay code excited linear prediction (LD-CELP) algorithm. In the first stage, the algorithm is evaluated via simulation to determine whether it meets the design criterion. Then, it is implemented in real-time based an object oriented approach. After the algorithm is thoroughly tested, it is further refined to obtain tighter and faster coding. This technique can be applied to other real-time DSP algorithms

Keywords

data compression; linear predictive coding; object-oriented programming; signal processing; speech coding; CCITT G.728; LD-CELP algorithm; coding; low delay code excited linear prediction; object oriented programming; real-time DSP algorithms; real-time implementation; real-time speech compression algorithm; simulation; Algorithm design and analysis; Delay lines; Digital signal processing; Object oriented modeling; Object oriented programming; Prediction algorithms; Predictive models; Real time systems; Speech; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Speech, Image Processing and Neural Networks, 1994. Proceedings, ISSIPNN '94., 1994 International Symposium on

Print_ISBN

0-7803-1865-X

Type

conf

DOI

10.1109/SIPNN.1994.344835

Filename

344835