| 摘要 |
A method for performing audio inpainting, wherein missing portions in an input audio signal are recovered and a recovered audio signal is obtained, comprises computing a Short-Time Fourier Transform (STFT) on portions of the input audio signal, computing conditional expectations of the source power spectra of the input audio signal, wherein estimated source power spectra P(f, n, j) are obtained and wherein the variance tensor V and complex Short-Time Fourier Transform (STFT) coefficients of the input audio signals are used, iteratively re-calculating the variance tensor V from the estimated power spectra P(f, n, j) and re-calculating updated estimated power spectra P(f, n, j), computing an array of STFT coefficients Ŝ from the resulting variance tensor V according to Ŝ(f, n, j) = E{S(f, n, j) |x, I s , I L , V}, and converting the array of STFT coefficients Ŝ to the time domain, wherein coefficients s̃ 1 , s̃ 2 ,..., s̃ j of the recovered audio signal are obtained. |
