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    • 5. 发明授权
    • Using pitch during speech recognition post-processing to improve recognition accuracy
    • 在语音识别后处理中使用音调来提高识别精度
    • US09484027B2
    • 2016-11-01
    • US12635346
    • 2009-12-10
    • Xufang ZhaoUma Arun
    • Xufang ZhaoUma Arun
    • G10L21/00G10L25/00G10L15/20G10L25/90G10L25/15
    • G10L15/20G10L25/15G10L25/90G10L2015/027
    • A method of automated speech recognition in a vehicle. The method includes receiving audio in the vehicle, pre-processing the received audio to generate acoustic feature vectors, decoding the generated acoustic feature vectors to produce at least one speech hypothesis, and post-processing the at least one speech hypothesis using pitch to improve speech recognition accuracy. The speech hypothesis can be accepted as recognized speech during post-processing if pitch is present in the received audio. Alternatively, a pitch count for the received audio can be determined, N-best speech hypotheses can be post-processed by comparing the pitch count to syllable counts associated with the speech hypotheses, and the speech hypothesis having a syllable count equal to the pitch count can be accepted as recognized speech.
    • 一种在车辆中自动语音识别的方法。 该方法包括在车辆中接收音频,对接收的音频进行预处理以产生声学特征向量,解码所生成的声学特征向量以产生至少一个语音假设,以及使用音高对语音假设进行后处理以改善语音 识别精度。 如果接收到的音频中存在音调,则语音假设可以在后处理中被接受为识别语音。 或者,可以确定接收到的音频的音调计数,通过将音调计数与与语音假设相关联的音节计数进行比较,可以对N个最佳语音假设进行后处理,并且具有等于音高计数的音节计数的语音假设 可以被接受为公认的演讲。
    • 6. 发明申请
    • USING PITCH DURING SPEECH RECOGNITION POST-PROCESSING TO IMPROVE RECOGNITION ACCURACY
    • 语音识别后处理中使用PITCH来提高识别精度
    • US20110144987A1
    • 2011-06-16
    • US12635346
    • 2009-12-10
    • Xufang ZhaoUma Arun
    • Xufang ZhaoUma Arun
    • G10L15/00G10L15/28G10L15/20G10L21/00
    • G10L15/20G10L25/15G10L25/90G10L2015/027
    • A method of automated speech recognition in a vehicle. The method includes receiving audio in the vehicle, pre-processing the received audio to generate acoustic feature vectors, decoding the generated acoustic feature vectors to produce at least one speech hypothesis, and post-processing the at least one speech hypothesis using pitch to improve speech recognition accuracy. The speech hypothesis can be accepted as recognized speech during post-processing if pitch is present in the received audio. Alternatively, a pitch count for the received audio can be determined, N-best speech hypotheses can be post-processed by comparing the pitch count to syllable counts associated with the speech hypotheses, and the speech hypothesis having a syllable count equal to the pitch count can be accepted as recognized speech.
    • 一种在车辆中自动语音识别的方法。 该方法包括在车辆中接收音频,对接收的音频进行预处理以产生声学特征向量,解码所生成的声学特征向量以产生至少一个语音假设,以及使用音高对语音假设进行后处理以改善语音 识别精度。 如果接收到的音频中存在音调,则语音假设可以在后处理中被接受为识别语音。 或者,可以确定接收到的音频的音调计数,通过将音调计数与与语音假设相关联的音节计数进行比较,可以对N个最佳语音假设进行后处理,并且具有等于音高计数的音节计数的语音假设 可以被接受为公认的演讲。