Recognition unit determination of interactive chinese speech recognition for embedded devices

Author

Gil-Jin Jang ; Chunghsi Pan ; Jae-Hyun Park ; Jeong-Sik Park ; Ji-Hwan Kim

Author_Institution

Sch. of Electr. & Comput. Eng., Ulsan Nat. Inst. of Sci. & Technol., Ulsan, South Korea

Volume

58

Issue

4

fYear

2012

fDate

11/1/2012 12:00:00 AM

Firstpage

1453

Lastpage

1458

Abstract

The work in this paper concerns the determination of a recognition unit in a small footprint Chinese large vocabulary word recognition system for embedded devices. This paper proposes a method of extending the conventional initial/final phonetic units in Chinese language to be used as a recognition unit. The word recognition performance of the proposed extended initial/final is compared with that of other recognition units, such as syllable, phoneme, triphone and the original initial/final. Under a similar memory usage limitation, the word recognition rates of different recognition units are evaluated. The proposed extended initial/final shows the best performance in a fixed memory usage condition: 93.74%, 94.76%, and 95.42% accuracy for 50K-word recognizer under memory restriction around 500KB, 1MB, and 5MB, respectively.

Keywords

embedded systems; speech recognition; embedded devices; fixed memory usage condition; initial-final phonetic units; interactive Chinese speech recognition; phoneme; recognition unit determination; small footprint Chinese large vocabulary word recognition system; syllable; triphone; Bismuth; Context; Context modeling; Decision trees; Memory management; Speech recognition; Vocabulary; Chinese speech recognition; Extended initial/final; Recognition unit; Small footprint;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2012.6415006

Filename

6415006