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This paper presents an algorithm for enhancement of the noisy speech sig- nal quality. This algorithm is based on the dissonant freque ncy filtering (DFF), F#, B and C# in relation to the frequency of the primary tone C (DFF-FBC algorithm). By means of the subjective Mean Opinion Score (MOS) test, the effect of the enhance- ment of the speech signal quality was analyzed. The analysis of the MOS test results, presented in the second part of this paper, points out to the e nhancement of the noisy speech signal quality in the presence of superimposed noises. Especially good results have been found with Husky Voice signal.

Enhancement of the perceptive quality of the noisy speech signal by using of DFF-FBC algorithm