Pervasive Computing Paradigms for Mental Health. Selected Papers from MindCare 2016, Fabulous 2016, and IIoT 2015

Research Article

Multi-microphone Noise Reduction System Integrating Nonlinear Multi-band Spectral Subtraction

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  • @INPROCEEDINGS{10.1007/978-3-319-74935-8_19,
        author={Radu Udrea and Claudia Oprea and Cristian Stanciu},
        title={Multi-microphone Noise Reduction System Integrating Nonlinear Multi-band Spectral Subtraction},
        proceedings={Pervasive Computing Paradigms for Mental Health. Selected Papers from MindCare 2016, Fabulous 2016, and IIoT 2015},
        proceedings_a={MINDCARE \& IIOT \& FABULOUS},
        year={2018},
        month={3},
        keywords={Speech enhancement Multi-microphone noise reduction},
        doi={10.1007/978-3-319-74935-8_19}
    }
    
  • Radu Udrea
    Claudia Oprea
    Cristian Stanciu
    Year: 2018
    Multi-microphone Noise Reduction System Integrating Nonlinear Multi-band Spectral Subtraction
    MINDCARE & IIOT & FABULOUS
    Springer
    DOI: 10.1007/978-3-319-74935-8_19
Radu Udrea1,*, Claudia Oprea1,*, Cristian Stanciu1,*
  • 1: University Politehnica of Bucharest
*Contact email: mihnea@comm.pub.ro, cristina@comm.pub.ro, cristian@comm.pub.ro

Abstract

This paper presents a robust system to improve speech signals processed by communication systems. The system includes multi-microphone techniques, for which both spectral and spatial characteristics of the signal sources can be used. Also a spectral subtraction algorithm for noise reduction is integrated into the system. The modified spectral subtraction method takes into account the non-uniform effect of colored noise on the speech spectrum and improves the multi-microphone noise filtering.