Method and device for classifying background noise contained in an audio signal
    1.
    发明授权
    Method and device for classifying background noise contained in an audio signal 有权
    用于对包含在音频信号中的背景噪声进行分类的方法和装置

    公开(公告)号:US08972255B2

    公开(公告)日:2015-03-03

    申请号:US13262313

    申请日:2010-03-22

    摘要: Embodiments of methods and devices for classifying background noise contained in an audio signal are disclosed. In one embodiment, the device includes a module for extracting from the audio signal a background noise signal, termed the noise signal. Also included is a second that calculates a first parameter, termed the temporal indicator. The temporal indicator relates to the temporal evolution of the noise signal. The second module also calculates a second parameter, termed the frequency indicator. The frequency indicator relates to the frequency spectrum of the noise signal. Finally, the device includes a third module that classifies the background noise by selecting, as a function of the calculated values of the temporal indicator and of the frequency indicator, a class of background noise from among a predefined set of classes of background noise.

    摘要翻译: 公开了用于分类包含在音频信号中的背景噪声的方法和装置的实施例。 在一个实施例中,该装置包括用于从音频信号提取称为噪声信号的背景噪声信号的模块。 还包括计算第一个参数(称为时间指标)的第二个参数。 时间指标与噪声信号的时间演变有关。 第二个模块还计算一个称为频率指示器的第二个参数。 频率指示器与噪声信号的频谱有关。 最后,该装置包括第三模块,其通过根据计算的时间指示符和频率指示符的值来选择背景噪声类型的预定义的背景噪声类别来分类背景噪声。

    Method and device for the objective evaluation of the voice quality of a speech signal taking into account the classification of the background noise contained in the signal
    2.
    发明授权
    Method and device for the objective evaluation of the voice quality of a speech signal taking into account the classification of the background noise contained in the signal 有权
    考虑到信号中包含的背景噪声的分类,对语音信号的语音质量进行客观评估的方法和装置

    公开(公告)号:US08886529B2

    公开(公告)日:2014-11-11

    申请号:US13264945

    申请日:2010-04-12

    CPC分类号: G10L25/69 G10L21/0208

    摘要: A method and device are provided for the objective evaluation of voice quality of a speech signal. The device includes: a module for extracting a background noise signal, referred to as a noise signal, from the speech signal; a module for calculating the audio parameters of the noise signal; a module for classifying the background noise contained in the noise signal on the basis of the calculated audio parameters, according to a predefined set of background noise classes; and a module for evaluating the voice quality of the speech signal on the basis of at least the resulting classification relative to the background noise in the speech signal.

    摘要翻译: 提供了一种用于对语音信号的语音质量进行客观评估的方法和装置。 该装置包括:用于从语音信号中提取称为噪声信号的背景噪声信号的模块; 用于计算噪声信号的音频参数的模块; 用于根据所计算的音频参数根据预定的一组背景噪声等级对包含在噪声信号中的背景噪声进行分类的模块; 至少基于语音信号中背景噪声的分类,来评估语音信号的语音质量的模块。

    METHOD AND DEVICE FOR CLASSIFYING BACKGROUND NOISE CONTAINED IN AN AUDIO SIGNAL
    3.
    发明申请
    METHOD AND DEVICE FOR CLASSIFYING BACKGROUND NOISE CONTAINED IN AN AUDIO SIGNAL 有权
    用于分类包含在音频信号中的背景噪声的方法和装置

    公开(公告)号:US20120022864A1

    公开(公告)日:2012-01-26

    申请号:US13262313

    申请日:2010-03-22

    IPC分类号: G10L15/20 G06F17/00

    摘要: Embodiments of methods and devices for classifying background noise contained in an audio signal are disclosed. In one embodiment, the device includes a module for extracting from the audio signal a background noise signal, termed the noise signal. Also included is a second that calculates a first parameter, termed the temporal indicator. The temporal indicator relates to the temporal evolution of the noise signal. The second module also calculates a second parameter, termed the frequency indicator. The frequency indicator relates to the frequency spectrum of the noise signal. Finally, the device includes a third module that classifies the background noise by selecting, as a function of the calculated values of the temporal indicator and of the frequency indicator, a class of background noise from among a predefined set of classes of background noise.

    摘要翻译: 公开了用于分类包含在音频信号中的背景噪声的方法和装置的实施例。 在一个实施例中,该装置包括用于从音频信号提取称为噪声信号的背景噪声信号的模块。 还包括计算第一个参数(称为时间指标)的第二个参数。 时间指标与噪声信号的时间演变有关。 第二个模块还计算一个称为频率指示器的第二个参数。 频率指示器与噪声信号的频谱有关。 最后,该装置包括第三模块,其通过根据计算的时间指示符和频率指示符的值来选择背景噪声类型的预定义集合中的背景噪声类别来分类背景噪声。

    METHOD AND DEVICE FOR THE OBJECTIVE EVALUATION OF THE VOICE QUALITY OF A SPEECH SIGNAL TAKING INTO ACCOUNT THE CLASSIFICATION OF THE BACKGROUND NOISE CONTAINED IN THE SIGNAL
    4.
    发明申请
    METHOD AND DEVICE FOR THE OBJECTIVE EVALUATION OF THE VOICE QUALITY OF A SPEECH SIGNAL TAKING INTO ACCOUNT THE CLASSIFICATION OF THE BACKGROUND NOISE CONTAINED IN THE SIGNAL 有权
    用于目标评估语音信号的语音质量的方法和设备对信号中包含的背景噪声的分类

    公开(公告)号:US20120059650A1

    公开(公告)日:2012-03-08

    申请号:US13264945

    申请日:2010-04-12

    IPC分类号: G10L21/02

    CPC分类号: G10L25/69 G10L21/0208

    摘要: A method and device are provided for the objective evaluation of voice quality of a speech signal. The device includes: a module for extracting a background noise signal, referred to as a noise signal, from the speech signal; a module for calculating the audio parameters of the noise signal; a module for classifying the background noise contained in the noise signal on the basis of the calculated audio parameters, according to a predefined set of background noise classes; and a module for evaluating the voice quality of the speech signal on the basis of at least the resulting classification relative to the background noise in the speech signal.

    摘要翻译: 提供了一种用于对语音信号的语音质量进行客观评估的方法和装置。 该装置包括:用于从语音信号中提取称为噪声信号的背景噪声信号的模块; 用于计算噪声信号的音频参数的模块; 用于根据所计算的音频参数根据预定的一组背景噪声等级对包含在噪声信号中的背景噪声进行分类的模块; 至少基于语音信号中背景噪声的分类,来评估语音信号的语音质量的模块。