华南理工大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (8): 127-130,144.doi: 10.3969/j.issn.1000-565X.2013.08.021

• 物理 • 上一篇    下一篇

低频噪声和白噪声下儿童汉语音节识别能力比较

彭健新 汪俊东   

  1. 华南理工大学 物理系,广东 广州 510640
  • 收稿日期:2012-09-01 修回日期:2012-10-22 出版日期:2013-08-25 发布日期:2013-07-01
  • 通信作者: 彭健新(1968-),男,博士,副教授,主要从事建筑声学、环境声学、功率超声研究. E-mail:phjxpeng@scut.edu.cn
  • 作者简介:彭健新(1968-),男,博士,副教授,主要从事建筑声学、环境声学、功率超声研究.
  • 基金资助:

    国家自然科学基金资助项目(11374106, 10774048);广东省科技计划项目(2011B061300066);广州市科技计划项目(2012KP021)

Comparison of Chinese Syllable Recognition Ability by Children in Low- Frequency Noise and White Noise

Peng Jian- xin Wang Jun- dong   

  1. Department of Physics,School of Sciences,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-09-01 Revised:2012-10-22 Online:2013-08-25 Published:2013-07-01
  • Contact: 彭健新(1968-),男,博士,副教授,主要从事建筑声学、环境声学、功率超声研究. E-mail:phjxpeng@scut.edu.cn
  • About author:彭健新(1968-),男,博士,副教授,主要从事建筑声学、环境声学、功率超声研究.
  • Supported by:

    国家自然科学基金资助项目(11374106, 10774048);广东省科技计划项目(2011B061300066);广州市科技计划项目(2012KP021)

摘要: 在一教室听音位置,通过声学仿真获取中低频混响时间频率特性平直、混响时间不同的两个房间脉冲响应,采用可听化方法在低频噪声和白噪声条件下对两组不同年龄的儿童进行主观音节识别评价,并与成年人的结果进行对比.结果表明: 低频干扰噪声下儿童的音节识别得分比白噪声下的低; 不管干扰噪声是低频噪声还是白噪声,相同信噪比和混响时间下,儿童的汉语音节识别得分比成年人的低; 儿童年龄越小,主观音节识别得分越低.

关键词: 汉语音节识别, 低频噪声, 白噪声, 信噪比, 混响时间

Abstract:

Two room impulse responses with flat reverberation frequency characteristics and different reverberation time in low and medium frequency domains were obtained in a listening position of a classroom model through acoustical simulation.Then,the Chinese syllable recognition performances of two groups of children in differentages were evaluated under white noise and low- frequency noise conditions via an auralization method,and the re-sults were finally compared with those of adults.It is found that (1) the Chinese syllable recognition scores of chil-dren in low- frequency noise are lower than those in white noise; (2) no matter what the frequency condition of noise is,the Chinese syllable recognition scores of children are lower than those of adults at the same signal- to- noise ratio and reverberation time; and (3) the Chinese syllable recognition scores are positively related to children’ s age.

Key words: Chinese syllable recognition, low- frequency noise, white noise, signal- to- noise ratio, reverberation time

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