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    • 7. 发明授权
    • Apparatus and method for separating audio signals
    • 用于分离音频信号的装置和方法
    • US08139788B2
    • 2012-03-20
    • US11338267
    • 2006-01-24
    • Atsuo HiroeKeiichi YamadaHelmut Lucke
    • Atsuo HiroeKeiichi YamadaHelmut Lucke
    • H04B15/00
    • H04R3/005G10L2021/02165
    • An audio signal separation apparatus for separating observation signals in the time domain of a mixture of a plurality of signals including audio signals into individual signals by means of independent component analysis to produce isolated signals adapted to produce isolated signals in the time-frequency domain from the observation signals in the time-frequency domain and a separation matrix substituted by initial values, compute the modified value of the separation matrix by using a score function using the isolated signals in the time-frequency domain and a multidimensional probability density function and the separation matrix, modify the separation matrix until the separation matrix substantially converges by using the modified value and produce isolated signals in the time-frequency domain by using the substantially converging separation matrix.
    • 一种音频信号分离装置,用于通过独立分量分析将包括音频信号的多个信号的多个信号的混合的时域中的观测信号分离成单独的信号,以产生适于在时域中产生隔离信号 在时频域中的观测信号和由初始值取代的分离矩阵,通过使用时频域中的隔离信号的分数函数和多维概率密度函数和分离矩阵来计算分离矩阵的修改值 修改分离矩阵直到分离矩阵通过使用修正值基本上收敛并且通过使用基本上收敛的分离矩阵在时间 - 频率域中产生隔离信号。