WO2008114448A1 - 音声認識システム、音声認識プログラムおよび音声認識方法 - Google Patents

音声認識システム、音声認識プログラムおよび音声認識方法 Download PDF

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Publication number
WO2008114448A1
WO2008114448A1 PCT/JP2007/055760 JP2007055760W WO2008114448A1 WO 2008114448 A1 WO2008114448 A1 WO 2008114448A1 JP 2007055760 W JP2007055760 W JP 2007055760W WO 2008114448 A1 WO2008114448 A1 WO 2008114448A1
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WIPO (PCT)
Prior art keywords
speech recognition
section
reference value
frame
matching
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PCT/JP2007/055760
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English (en)
French (fr)
Inventor
Nobuyuki Washio
Shouji Harada
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Fujitsu Limited
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Priority to JP2009505047A priority Critical patent/JP4836290B2/ja
Priority to CN2007800522508A priority patent/CN101636784B/zh
Priority to PCT/JP2007/055760 priority patent/WO2008114448A1/ja
Publication of WO2008114448A1 publication Critical patent/WO2008114448A1/ja
Priority to US12/558,249 priority patent/US7991614B2/en

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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00Speech recognition
    • G10L15/04Segmentation; Word boundary detection
    • G10L15/05Word boundary detection

Abstract

 音声認識システム(1)は、特徴量算出部(2)と、各フレームの入力音レベルを算出する音レベル算出部(6)と、各フレームの特徴量を音響モデルおよび言語モデルと照合し、認識単語列を出力する照合部(7)と、音声区間の始点フレームを、基準値を基に決定する始点判定部(31)と、音声区間の終点フレームを、基準値を基に決定する終点判定部(32)と、入力音レベルの変動に応じて基準値を更新する基準値更新部(4)とを備える。始点判定部(31)は、基準値が更新される度に、始点フレームを更新し、照合部(7)は、終点フレームの前に、照合を開始し、始点フレームの通知を受ける度に、照合結果を修正する。音声認識システム(1)は、適切な音声区間に基づいた音声認識を行いつつも、レスポンスタイムの遅延を抑えることができる。
PCT/JP2007/055760 2007-03-20 2007-03-20 音声認識システム、音声認識プログラムおよび音声認識方法 WO2008114448A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009505047A JP4836290B2 (ja) 2007-03-20 2007-03-20 音声認識システム、音声認識プログラムおよび音声認識方法
CN2007800522508A CN101636784B (zh) 2007-03-20 2007-03-20 语音识别系统及语音识别方法
PCT/JP2007/055760 WO2008114448A1 (ja) 2007-03-20 2007-03-20 音声認識システム、音声認識プログラムおよび音声認識方法
US12/558,249 US7991614B2 (en) 2007-03-20 2009-09-11 Correction of matching results for speech recognition

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PCT/JP2007/055760 WO2008114448A1 (ja) 2007-03-20 2007-03-20 音声認識システム、音声認識プログラムおよび音声認識方法

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US12/558,249 Continuation US7991614B2 (en) 2007-03-20 2009-09-11 Correction of matching results for speech recognition

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WO2008114448A1 true WO2008114448A1 (ja) 2008-09-25

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US (1) US7991614B2 (ja)
JP (1) JP4836290B2 (ja)
CN (1) CN101636784B (ja)
WO (1) WO2008114448A1 (ja)

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