Sound Source Separation in the Frequency Domain with Image Processing

Feasibility of source separation in frequency domain

We focus on the feasibility of the source separation in the frequency domain. First, it is linked with the convergence speed towards gaussianity of signals after L-point discrete Fourier Transform. We test here a distance to gaussianity thanks to the spectral kurtosis. We analyse the influence of L, of the duration of the source tricorrelations and of a non linear filtering. We mainly develop t...

Blind source separation and sound source localization on time-frequency domain considering time lag information

Separation and Dereverberation Performance of Frequency Domain Blind Source Separation

In this paper, we investigate the separation and dereverberation performance of frequency domain Blind Source Separation (BSS) based on Independent Component Analysis (ICA) by measuring impulse responses of a system. Since ICA is a statistical method, i.e., it only attempts to make outputs independent, it is not easy to predict what is going on in a BSS system physically. We therefore investiga...

Simultaneous Diagonalization in the Frequency Domain (SDIF) for Source Separation

Reverberant signals recorded by multiple microphones can be described as sums of sources convolved with different parameters. Blind source separation of this unknown linear system can be transformed to a set of instantaneous mixtures for every frequency band. In each frequency band, we may use the simultaneous diagonalization algorithms to separate the sources. In addition to our previous simul...

Multiple source separation in the frequency domain using negative beamforming

The localization of acoustic sources in a room is essential in many applications, as security monitoring, video conferencing, automatic scene analysis [6], reverberation canceling [5], or robust Speech Recognition under multiple-party effect [7]. Through the present paper the design and operation of a negative beamformer for multiple source speech separation will be presented. The problems foun...