APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR FEATURE EXTRACTION
    68.
    发明申请
    APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR FEATURE EXTRACTION 有权
    用于特征提取的装置,方法和计算机程序产品

    公开(公告)号:US20090222259A1

    公开(公告)日:2009-09-03

    申请号:US12366037

    申请日:2009-02-05

    IPC分类号: G10L11/04

    CPC分类号: G10L15/02 G10L25/06 G10L25/90

    摘要: A feature extraction apparatus includes a spectrum calculating unit that calculates, based on an input speech signal, a frequency spectrum having frequency components obtained at regular intervals on a logarithmic frequency scale for each of frames that are defined by regular time intervals, and thereby generates a time series of the frequency spectrum; a cross-correlation coefficients calculating unit that calculates, for each target frame of the frames, a cross-correlation coefficients between frequency spectra calculated for two different frames that are in vicinity of the target frame and a predetermined frame width apart from each other; and a shift amount predicting unit that predicts a shift amount of the frequency spectra on the logarithmic frequency scale with respect to the predetermined frame width by use of the cross-correlation coefficients.

    摘要翻译: 特征提取装置包括频谱计算单元,该频谱计算单元基于输入的语音信号,以规则的时间间隔以规律的间隔对每个由规则的时间间隔定义的帧进行频率分量的频谱,从而生成 时间序列的频谱; 互相关系数计算单元,对于帧的每个目标帧,计算针对在目标帧附近的两个不同帧计算的频谱与彼此分开的预定帧宽度的互相关系数; 以及偏移量预测单元,其通过使用互相关系数来预测相对于预定帧宽度的对数频谱上的频谱的偏移量。

    Prosody-pattern generating apparatus, speech synthesizing apparatus, and computer program product and method thereof
    69.
    发明申请
    Prosody-pattern generating apparatus, speech synthesizing apparatus, and computer program product and method thereof 有权
    韵律图案生成装置,语音合成装置及其计算机程序产品及其方法

    公开(公告)号:US20080243508A1

    公开(公告)日:2008-10-02

    申请号:US12068600

    申请日:2008-02-08

    IPC分类号: G10L13/08

    CPC分类号: G10L13/10

    摘要: Normalization parameters are generated at a normalization-parameter generating unit by calculating the mean values and the standard deviations of an initial prosody pattern and a prosody pattern of a training sentence of a speech corpus. Then, the variance range or variance width of the initial prosody pattern is normalized at the prosody-pattern normalizing unit in accordance with the normalization parameters. As a result, a prosody pattern similar to speech of human beings and improved in naturalness can be generated with a small amount of calculation.

    摘要翻译: 归一化参数通过计算语料库的训练句的初始韵律模式和韵律模式的平均值和标准偏差在标准化参数生成单元处产生。 然后,根据归一化参数,在韵律模式归一化单元处对初始韵律模式的方差范围或方差宽度进行归一化。 结果,可以通过少量的计算产生与人的言语和自然性相似的韵律模式。

    Feature-vector compensating apparatus, feature-vector compensating method, and computer product
    70.
    发明申请
    Feature-vector compensating apparatus, feature-vector compensating method, and computer product 审中-公开
    特征向量补偿装置,特征向量补偿方法和计算机产品

    公开(公告)号:US20070276662A1

    公开(公告)日:2007-11-29

    申请号:US11713801

    申请日:2007-03-05

    IPC分类号: G10L15/00

    摘要: A feature extracting unit extracts a feature vector of an input speech. A similarity calculating unit calculates degrees of similarity for each of a plurality of noise environments, based on the feature vector. A compensation-vector calculating unit acquires a first compensation vector from a storing unit, calculates a second compensation vector based on the first compensation vector, and calculates a third compensation vector by weighting and summing the second compensation vector with the degree of similarity as weights. A compensating unit compensates the feature vector based on the third compensation vector.

    摘要翻译: 特征提取单元提取输入语音的特征向量。 相似度计算单元基于特征向量来计算多个噪声环境中的每一个的相似度。 补偿矢量计算单元从存储单元获取第一补偿向量,基于第一补偿向量计算第二补偿向量,并通过对具有相似度的第二补偿向量进行加权和求和来计算第三补偿向量。 补偿单元基于第三补偿向量补偿特征向量。