Lower Hearing Threshold by Noise

Chin. Phys. Lett.

2004, Vol. 21

Issue (4): 757-759 DOI:

Original Articles

Lower Hearing Threshold by Noise

LONG Zhang-Cai^1,2;SHAO Feng³;ZHANG Yan-Ping⁴;QIN You-Guo²

¹Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 ²Acoustics Laboratory, Tsinghua University, Beijing 100084 ³Department of Opto-electronics Engineering and Communication, Huazhong University of Science and Technology, Wuhan 430074 ⁴Affiliated Hospital, Huazhong University of Science and Technology, Wuhan 430074

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LONG Zhang-Cai, SHAO Feng, ZHANG Yan-Ping et al 2004 Chin. Phys. Lett. 21 757-759

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Abstract We demonstrate that noise can be a benefit factor that enables us to hear weaker signals. We measured the hearing thresholds of subjects for pure tone in different noise levels. The results show that pure tone thresholds with noise of some levels are lower than that without noise. The largest down-shift of the threshold by noise among the examined subjects is 5.7 dB, and the smallest is 1.7 dB.

Keywords: 87.19.Bb 87.19.Dd 05.40.Ca 43.66.Cb

Published: 01 April 2004

PACS:	87.19.Bb
	87.19.Dd
	05.40.Ca	(Noise)
	43.66.Cb	(Loudness, absolute threshold)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I4/0757

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