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Modified mel filter bank structure using spectral characteristics for sound analysis

机译:改进的梅尔滤波器组结构,利用频谱特性进行声音分析

摘要

A system and method for detection of sound of interest amongst plurality of other dynamically varying sounds is disclosed. In one embodiment, a spectrum detector identifies dominant spectrum energy frequency by detecting the dominant spectrum energy band present in spectrum of sound energy. A modified mel filter bank is designed by revising spectral positioning of the first mel filter bank and the second mel filter bank according to the identified dominant frequency. A feature extractor extracts the features from first mel filter bank, second mel filter bank and the modified mel filter bank which are further classified in order to detect the sound of interest.
机译:公开了一种用于在多个其他动态变化的声音之中检测感兴趣的声音的系统和方法。在一个实施例中,频谱检测器通过检测声能频谱中存在的主频谱能带来识别主频谱能量频率。通过根据识别出的主导频率修改第一梅尔滤波器组和第二梅尔滤波器组的频谱位置来设计修改的梅尔滤波器组。特征提取器从第一梅尔滤波器组,第二梅尔滤波器组和修改后的梅尔滤波器组中提取特征,将它们进一步分类以检测感兴趣的声音。

著录项

  • 公开/公告号US9704495B2

    专利类型

  • 公开/公告日2017-07-11

    原文格式PDF

  • 申请/专利权人 TATA CONSULTANCY SERVICES LIMITED;

    申请/专利号US201314380297

  • 发明设计人 JITENDRA JAIN;ANIRUDDHA SINHA;

    申请日2013-02-11

  • 分类号H04R29/00;G10L19/02;G10L25/51;G10L25/18;

  • 国家 US

  • 入库时间 2022-08-21 13:46:53

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