On the quality-assessment of reverberated speech

  • Authors:
  • Amaro A. De Lima;Thiago De M. Prego;Sergio L. Netto;Bowon Lee;Amir Said;Ronald W. Schafer;Ton Kalker;Majid Fozunbal

  • Affiliations:
  • Federal Center for Technological Education Celso Suckow da Fonseca (CEFET-RJ), Nova Iguaçu, RJ, Brazil and Program of Electrical Engineering, COPPE, Federal University of Rio de Janeiro, Rio ...;Program of Electrical Engineering, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil;Program of Electrical Engineering, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil;Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA;Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA;Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA;Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA;Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, California 94304, USA

  • Venue:
  • Speech Communication
  • Year:
  • 2012

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Abstract

This paper addresses the problem of quantifying the reverberation effect in speech signals. The perception of reverberation is assessed based on a new measure combining the characteristics of reverberation time, room spectral variance, and direct-to-reverberant energy ratio, which are estimated from the associated room impulse response (RIR). The practical aspects behind a robust RIR estimation are underlined, allowing an effective feature extraction for reverberation evaluation. The resulting objective metric achieves a correlation factor of about 90% with the subjective scores of two distinct speech databases, illustrating the system's ability to assess the reverberation effect in a reliable manner.