Métodos de Mitigação de Efeitos Reverberantes e Ruidosos com Ganho de Inteligibilidade e Qualidade

Abstract

—This work presents an analysis of methods to improve intelligibility and quality of speech signals under noisy reverberant scenarios. Four methods are considered in the evalu- ation for three different reverberation rooms and four noises with different degrees of nonstationarity. Two objective intelligibility measures and two quality measures are applied for objective assessment. Results show that the GTF F0 ( F0-based Gammatone Filtering ) solution leads to the highest improvement in terms of intelligibility and quality.