Analysis of Two-Sensors Forward BSS Structure With Post-Filters in The Presence of Coherent and Incoherent Noise

Abstract : We consider the speech enhancement problem in a moving car through a blind source separation BSS scheme involving two sensors. To correct the distortion brought by this structure we have proposed in previous work (Djendi et al., 2007) two frequency-domain methods to compute the post-filters placed at the output of the forward BSS structure (FBSS). In this work, we consider the case where the noises at the sensor inputs contain coherent and non-coherent components. We provide an analysis of the performance (output SNR and the distortion criterion) of the FBSS structure with post-filters as a function of two new parameters: the coherent to diffuse ratio (CDR) andhe speech to coherent ratio (SCR). Simulation results show perfect agreement between theoretical and experimental results.
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Contributor : Pascal Scalart <>
Submitted on : Friday, January 31, 2014 - 10:41:52 AM
Last modification on : Thursday, November 15, 2018 - 11:57:39 AM

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  • HAL Id : hal-00939967, version 1

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Mohamed Djendi, Pascal Scalart, André Gilloire. Analysis of Two-Sensors Forward BSS Structure With Post-Filters in The Presence of Coherent and Incoherent Noise. Speech Communication, Elsevier : North-Holland, 2013, 55, pp.975-987. ⟨hal-00939967⟩

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