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    • 10. 发明申请
    • SPEECH RECOGNITION DEVICE, SPEECH RECOGNITION METHOD AND PROGRAM
    • 语音识别装置,语音识别方法和程序
    • US20130185068A1
    • 2013-07-18
    • US13823194
    • 2011-09-15
    • Daisuke TanakaTakayuki Arakawa
    • Daisuke TanakaTakayuki Arakawa
    • G10L15/20
    • G10L15/20G10L15/08G10L25/78G10L2025/786
    • The present invention provides a speech recognition device includes a threshold value candidate generation unit which extracts a feature indicating likeliness of being speech from a temporal sequence of input sound, and generates a plurality of threshold value candidates for discriminating between speech and non-speech; a speech determination unit which, by comparing the feature indicating likeliness of being speech with the plurality of threshold value candidates, determines respective speech sections, and outputs determination information as a result of the determination; a search unit which corrects each of the speech sections represented by the determination information, using a speech model and a non-speech model; and a parameter update unit which estimates a threshold value for determining a speech section, on the basis of distribution profiles of the feature respectively in utterance sections and in non-utterance sections, within each of the corrected speech sections, and makes an update with the threshold value.
    • 本发明提供一种语音识别装置,包括阈值候补生成部,其从输入声音的时间序列中提取表示语音的可能性的特征,生成用于区分语音和非语音的多个阈值候选; 语音确定单元,通过比较指示语音的可能性与多个阈值候选的特征,确定各个语音区间,并作为确定的结果输出确定信息; 搜索单元,其使用语音模型和非语音模型来校正由所述确定信息表示的每个所述语音段; 以及参数更新单元,其基于分别在每个校正语音段中的话语部分和非话语部分中的特征的分布简档来估计用于确定语音部分的阈值,并且使用 阈值。