Parameter optimization of late reverberation suppression algorithm
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Abstract
Boundary values between early reflections and late reverberation, optimal in sense of such criteria as speech recognition accuracy and speech quality, had been found. When optimal boundary value is chosen, usage of logMMSE method for late reverberation suppression makes it possible to increase recognition accuracy from 22 ... 30% to 56…74% and speech quality index PESQ from 2.281 to 2.33.
Reference 6, figures 4.
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