METHOD OF REVERBERATION TIME ESTIMATION USING STATISTIC OF SPEECH SPECTRAL DECAY RATES

摘要

The present invention relates to a method for estimating reverberation time using statistics of speech spectral decay rates. According to an aspect of the present invention, the method for estimating reverberation time using statistics of speech spectral decay rates is based on an indoor impulse response signal input from the outside. generating, calculating a plurality of spectral attenuation rates from the reverberation speech signal, calculating statistics corresponding to the reverberation speech signal based on percentiles of the plurality of spectral attenuation rates, statistics corresponding to the reverberation speech signal and the reverberation speech signal Training the learning model by inputting a corresponding predetermined supervised learning value to a preset learning model, receiving an evaluation voice signal that is an estimation target of reverberation time, and applying the evaluation voice signal to the learning model to apply the evaluation voice signal estimating a reverberation time for the