PLP Based CELP Speech Coder

Author

Najafi, Jafar ; Marvi, Hossein

Author_Institution

Fac. of Electr. & Robotic Eng., Shahrood Univ. of Technol., Shahrood, Iran

Volume

1

fYear

2009

fDate

28-30 Dec. 2009

Firstpage

263

Lastpage

267

Abstract

Perceptual linear prediction (PLP) is widely used in speech recognition systems as a feature extraction method. Also code-exited linear prediction coder (CELP) is one of the well known speech coders which widely used in communication systems. In this paper the application of PLP in speech coding has been discussed. In the first stage the parameters of formant synthesis filter are determined by applying PLP algorithms. Then these parameters are used in coder, code-exited linear prediction coder, to improve the efficiency of this kind of coder. The experiments show promising result in some cases.

Keywords

feature extraction; filtering theory; speech coding; speech recognition; vocoders; code-exited linear prediction coder; feature extraction method; formant synthesis filter; perceptual linear prediction; speech coding; speech recognition systems; Auditory system; Cepstral analysis; Feature extraction; Filters; Humans; Predictive models; Signal synthesis; Speech coding; Speech recognition; Speech synthesis; CELP coder; Linear Prediction Coefficients; Perceptual Linear Prediction; Speech coder;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Electrical Engineering, 2009. ICCEE '09. Second International Conference on

Conference_Location

Dubai

Print_ISBN

978-1-4244-5365-8

Electronic_ISBN

978-0-7695-3925-6

Type

conf

DOI

10.1109/ICCEE.2009.90

Filename

5380499