The Differences in Horizontal Sound Source Recognition and Localization Ability of Normal Hearing Population under Different Noise Conditions

LI Xing; HE Jin-kai; ZHAO Qi

doi:10.3969/j.issn.1672-4933.2024.05.007

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The Differences in Horizontal Sound Source Recognition and Localization Ability of Normal Hearing Population under Different Noise Conditions

Clinical Research | 更新时间：2024-09-05

- The Differences in Horizontal Sound Source Recognition and Localization Ability of Normal Hearing Population under Different Noise Conditions
- Chinese Scientific Journal of Hearing and Speech Rehabilitation Vol. 22, Issue 5, Pages: 479-483(2024)
- 作者机构：
  
  新疆医科大学第一附属医院耳鼻喉科乌鲁木齐 830054
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1672-4933.2024.05.007
  CLC： R764
- Published：15 September 2024，
  
  Received：19 October 2023，
- 稿件说明：
移动端阅览
李星,何金凯,赵琦.不同噪声条件下健听人群水平声源定位能力差异研究[J].中国听力语言康复科学杂志,2024,22(05):479-483.

LI Xing,HE Jin-kai,ZHAO Qi.The Differences in Horizontal Sound Source Recognition and Localization Ability of Normal Hearing Population under Different Noise Conditions[J].Chinese Scientific Journal of Hearing and Speech Rehabilitation,2024,22(05):479-483.
李星,何金凯,赵琦.不同噪声条件下健听人群水平声源定位能力差异研究[J].中国听力语言康复科学杂志,2024,22(05):479-483. DOI： 10.3969/j.issn.1672-4933.2024.05.007.

LI Xing,HE Jin-kai,ZHAO Qi.The Differences in Horizontal Sound Source Recognition and Localization Ability of Normal Hearing Population under Different Noise Conditions[J].Chinese Scientific Journal of Hearing and Speech Rehabilitation,2024,22(05):479-483. DOI： 10.3969/j.issn.1672-4933.2024.05.007.

摘要

目的

探讨不同噪声条件下健听人群水平声源定位能力的差异。

方法

选取2022年8月～2023年8月在我院检查的听力正常者78例，测试在安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下，受试者应答扬声器与发声扬声器的均方根误差（root mean square error，RMSE）和平均应答时间。

结果

不同噪声条件下受试者平均应答时间比较无显著差异（

＞0.05）；安静条件下受试者RMSE为10.21°±1.55°，明显低于白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下（

＜0.05）；白噪声40 dB SPL、言语噪声40 dB SPL条件下受试者RMSE分别为15.02°±2.22°和15.16°±2.06°，明显高于白噪声35 dB SPL（

＜0.05）；安静、白噪声35 dB SPL、白噪声40 dB SPL和言语噪声40 dB SPL条件下受试者对低频、中频和高频刺激声的平均应答时间无显著差异（

＞0.05）；白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对高频刺激声的RMSE均高于低频、中频刺激声（

＜0.05），对中频刺激声的RMSE均高于低频刺激声（

＜0.05）；安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方声源的RMSE明显低于其他方位（

＜0.05）；安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方和其他方位声源的平均应答时间无显著差异（

＞0.05）；安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下，不同性别、年龄受试者RMSE及平均应答时间无显著差异（

＞0.05）。

结论

噪声对健听人群声源识别定位能力有明显影响，在不同噪声条件下，受试者更容易定位来自前方的声源。

Abstract

Objective

To explore the differences in horizontal sound source recognition and localization abilities among people with normal hearing under different noise conditions.

Methods

78 normal hearing individuals examined at our hospital from August 2022 to August 2023 were selected to test the root mean square error (RMSE) and the average response time of the speaker and speaker under quiet conditions

with white noise of 35 dB SPL

white noise of 40 dB SPL

and speech noise of 40 dB SPL.

Results

There was no statistically significant difference in the average response time of subjects under different noise con

ditions (

0.05). The RMSE of the subjects under quiet conditions was (10.21 ± 1.55) °

significantly lower than that under white noise conditions of 35 dB SPL

white noise conditions of 40 dB SPL

and speech noise conditions of 40 dB SPL (

0.05). The RMSE of subjects under white noise 40 dB SPL and speech noise 40 dB SPL conditions were (15.02 ± 2.22) ° and (15.16 ± 2.06) °

respectively

significantly higher than those under white noise 35 dB SPL and (

0.05). There was no statistically significant difference in the average response time of subjects to low-frequency

intermediate

and high-frequency stimuli under quiet

white noise 35 dB SPL

white noise 40 dB SPL

and speech noise 40 dB SPL conditions (

0.05). Under the conditions of 35 dB SPL and 40 dB SPL white noises

the RMSE of subjects to high-frequency stimuli was higher than that of low-frequency and intermediate stimuli (

0.05). Under the condition of 40 dB SPL speech noise

the RMSE of subjects to high-frequency stimuli was higher than that to low-frequency stimuli (

0.05). Under the conditions of quietness

white noises of 35 dB SPL

and 40 dB SPL

and speech noise of 40 dB SPL

the RMSE of the subjects towards the front sound source was significantly lower than that of other directions (

0.05). There was no statistically significant difference in the average response time of subjects to the front and other directional sound sources under quiet

white noise 35 dB SPL

white noise 40 dB SPL

and speech noise 40 dB SPL conditions (

0.05). There was no statistically significant difference in RMSE and average response time among subjects of different genders and ages under quiet

white noise 35 dB SPL

white noise 40 dB SPL

and speech noise 40 dB SPL conditions (

0.05).

Conclusion

Noise has a significant impact on the ability of normal hearing individuals to identify and locate sound sources. Under different noise conditions

subjects are more likely to locate sound sources from the front.

关键词

听力正常声源定位白噪声言语噪声

Keywords

Normal hearingSound source localizationWhite noiseSpeech noise

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