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  5. Using of speech test signal in formant-modulation method of speech intelligibility measuring

Using of speech test signal in formant-modulation method of speech intelligibility measuring

A.N. Prodeus
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We consider the basic possibility of applying the test signals in the form of natural speech in formant-modulation method for estimating speech intelligibility. It is shown that the method of estimating a modulation transfer coefficient, based on the spectral analysis of envelope intensities of test and output signal, provides a plausible results under the action of noise, however, it is practically unworkable in an intensive reverberation conditions.
Keywords: evaluation of speech intelligibility, formant-modulation method, modulation transfer coefficient, noise interference, reverberation