带宽扩展对人工耳蜗使用者电话语音识别的影响。
Effect of bandwidth extension to telephone speech recognition in cochlear implant users.
作者信息
Liu Chuping, Fu Qian-Jie, Narayanan Shrikanth S
机构信息
Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA.
出版信息
J Acoust Soc Am. 2009 Feb;125(2):EL77-83. doi: 10.1121/1.3062145.
Abstract
The present study investigated a bandwidth extension method to enhance telephone speech understanding for cochlear implant (CI) users. The acoustic information above telephone speech transmission range (i.e., 3400 Hz) was estimated based on trained models describing the relation between narrow-band and wide-band speech. The effect of the bandwidth extension method was evaluated with IEEE sentence recognition tests in seven CI users. Results showed a relatively modest but significant improvement in the speech recognition with the proposed method. The effect of bandwidth extension method was also observed to be highly dependent on individual CI users.
摘要
本研究调查了一种带宽扩展方法，以提高人工耳蜗（CI）使用者对电话语音的理解能力。基于描述窄带语音和宽带语音之间关系的训练模型，估计了电话语音传输范围以上（即3400Hz）的声学信息。通过对7名CI使用者进行IEEE句子识别测试，评估了带宽扩展方法的效果。结果表明，所提出的方法在语音识别方面有相对适度但显著的改善。还观察到带宽扩展方法的效果高度依赖于个体CI使用者。
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本文引用的文献
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