Echo suppression with increment/decrement, quick, and time-delay counter updating
    1.
    发明授权
    Echo suppression with increment/decrement, quick, and time-delay counter updating 有权
    回波抑制与增量/减量,快速和延时计数器更新

    公开(公告)号:US07643630B2

    公开(公告)日:2010-01-05

    申请号:US11165897

    申请日:2005-06-24

    IPC分类号: H04M9/08

    CPC分类号: H04M9/082

    摘要: Hands-free phones with voice activity detection using a comparison of frame power estimate with an adaptive frame noise power estimate, automatic gain control with fast adaptation and minimal speech distortion, echo cancellation updated in the frequency domain with stepsize optimization and smoothed spectral whitening, and echo suppression with adaptive talking-state transitions.

    摘要翻译: 使用帧功率估计与自适应帧噪声功率估计的比较,具有快速适应的自动增益控制和最小语音失真的具有语音活动检测的免提电话,在频域中更新的逐步优化和平滑频谱白化的回波消除,以及 回声抑制与自适应通话状态转换。