Title :
A handheld English pronunciation evaluation device
Author :
You, Kisun ; Kim, Hoyoun ; Chang, Hoseok ; Lee, Juyup ; Sung, Wonyong
Author_Institution :
Seoul Nat. Univ., South Korea
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;
Conference_Titel :
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-8838-0
DOI :
10.1109/ICCE.2005.1429820
