The skipping technique: a simple and fast algorithm to find the pitch in CELP vocoder

Author

Lee, Joohun ; Bae, MyungJin ; Ann, Souguil ; Hahyoung You

Author_Institution

Dept. of Electron. Eng., Seoul Nat. Univ., South Korea

Volume

3

fYear

1995

fDate

35011

Firstpage

1263

Abstract

A fast pitch search algorithm using skipping technique is an efficient method of reducing the computation complexity of pitch search while maintaining a good speech quality in a CELP vocoder. The skipping technique also improves the computation reduction efficiency of conventional fast pitch search methods such as the delta search method by combining with them. Compared with the traditional full search method, the skipping technique combined with the conventional delta search method can reduce the computation time for a pitch search by over 60% with a quality degradation of only 0.57 dB

Keywords

computational complexity; linear predictive coding; search problems; speech coding; speech intelligibility; vocoders; CELP vocoder; computation complexity reduction; computation reduction efficiency; delta search method; fast pitch search algorithm; fast pitch search methods; skipping technique; speech quality; Bit rate; Computational complexity; Degradation; Filters; Search methods; Speech coding; Speech synthesis; Telecommunication computing; Very large scale integration; Vocoders;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-7803-2489-7

Type

conf

DOI

10.1109/MILCOM.1995.483698

Filename

483698