METHOD AND APPARATUS FOR BLIND SIGNAL RECOVERY IN NOISY, REVERBERANT ENVIRONMENTS
    1.
    发明申请
    METHOD AND APPARATUS FOR BLIND SIGNAL RECOVERY IN NOISY, REVERBERANT ENVIRONMENTS 有权
    噪声信号恢复方法与装置,复原环境

    公开(公告)号:US20110231185A1

    公开(公告)日:2011-09-22

    申请号:US12963877

    申请日:2010-12-09

    IPC分类号: G10L21/02

    摘要: A maximum-kurtosis, distortionless response (MKDR) technique and an extension, the maximum-kurtosis, Wiener estimate (MKWE) technique, are provided. In one form, blind estimates of the speech source's channel response are made from the microphone data and MVDR is applied. The source direction is estimated by finding weights that maximize output kurtosis, or the fourth central statistical moment, in the frequency domain. The MKWE approach approximates the Wiener filter by using MKDR-output noise power estimates to compute a Wiener post-filter. These approaches can be extended to block-adaptive versions if the speech source is not quickly moving in space.

    摘要翻译: 提供最大峰度,无失真响应(MKDR)技术和扩展,最大峰度,维纳估计(MKWE)技术。 在一种形式中,语音源的信道响应的盲目估计是从麦克风数据和MVDR应用的。 通过发现在频域中最大化输出峰度或第四中心统计时刻的权重来估计源方向。 MKWE方法通过使用MKDR输出噪声功率估计来近似维纳滤波器来计算维纳后置滤波器。 如果语音源不能在空间中快速移动,则这些方法可以扩展到块自适应版本。

    Method and apparatus for blind signal recovery in noisy, reverberant environments
    2.
    发明授权
    Method and apparatus for blind signal recovery in noisy, reverberant environments 有权
    用于在噪声,混响环境中盲信号恢复的方法和装置

    公开(公告)号:US09093079B2

    公开(公告)日:2015-07-28

    申请号:US12963877

    申请日:2010-12-09

    摘要: A maximum-kurtosis, distortionless response (MKDR) technique and an extension, the maximum-kurtosis, Wiener estimate (MKWE) technique, are provided. In one form, blind estimates of the speech source's channel response are made from the microphone data and MVDR is applied. The source direction is estimated by finding weights that maximize output kurtosis, or the fourth central statistical moment, in the frequency domain. The MKWE approach approximates the Wiener filter by using MKDR-output noise power estimates to compute a Wiener post-filter. These approaches can be extended to block-adaptive versions if the speech source is not quickly moving in space.

    摘要翻译: 提供最大峰度,无失真响应(MKDR)技术和扩展,最大峰度,维纳估计(MKWE)技术。 在一种形式中,语音源的信道响应的盲目估计是从麦克风数据和MVDR应用的。 通过发现在频域中最大化输出峰度或第四中心统计时刻的权重来估计源方向。 MKWE方法通过使用MKDR输出噪声功率估计来近似维纳滤波器来计算维纳后置滤波器。 如果语音源不能在空间中快速移动,则这些方法可以扩展到块自适应版本。