Process and system of adaptive filtering by blind equalization o

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

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704201, G10L3/02

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active

059059699

ABSTRACT:
A process and a system for adaptive filtering of a digital telephone signal, in which the digital telephone signal is submitted to a frequency transformation and to a sub-band filtering in order to produce a plurality of sub-band signals. Each of the sub-band signals is submitted in turn to an adaptive filtering starting from a reference signal based on a long-term statistics regarding the telephone signal, equalization by blind deconvolution of the effects of the telephone transmission lines on the digital telephone signal thus being obtained.

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