A handheld English pronunciation evaluation device

Author

You, Kisun ; Kim, Hoyoun ; Chang, Hoseok ; Lee, Juyup ; Sung, Wonyong

Author_Institution

Seoul Nat. Univ., South Korea

fYear

2005

fDate

8-12 Jan. 2005

Firstpage

267

Lastpage

268

Abstract

A handheld device for practicing English pronunciation is developed by applying speech recognition technology. This machine helps correct the intonation by showing the pitch contour and assesses the pronunciation accuracy by computing the log-posterior probability of the segmented phonemes. Not only the phoneme replacement errors but also deletion and insertion mistakes are checked. It is also possible to find out the Korean phoneme replacement errors because this algorithm employs both English and Korean phoneme sets. This handheld device is implemented using an ARM7 CPU and equips a graphic LCD.

Keywords

natural languages; notebook computers; probability; speech processing; speech recognition; ARM7 CPU; English pronunciation evaluation; Korean phoneme replacement errors; Korean phoneme sets; deletion mistakes; graphic LCD; handheld device; insertion mistakes; intonation; log-posterior probability; phoneme replacement errors; pitch contour; pronunciation accuracy; segmented phonemes; speech recognition; Databases; Decoding; Feature extraction; Graphics; Handheld computers; Hidden Markov models; Natural languages; Quality assessment; Speech recognition; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on

Print_ISBN

0-7803-8838-0

Type

conf

DOI

10.1109/ICCE.2005.1429820

Filename

1429820