The objective was to measure the effect of various face masks on speech recognition threshold and the word recognition score in the presence of varying background noise levels.20 normal-hearing adult subjects(a total ...The objective was to measure the effect of various face masks on speech recognition threshold and the word recognition score in the presence of varying background noise levels.20 normal-hearing adult subjects(a total of 40 ears)participated.Pure tone audiometry followed by speech recognition threshold and word recognition score at the most comfortable level in varying signal-to-noise ratios(SNR0,SNR10,and SNR15)using surgical,pleated cloth,and N95 masks.Using surgical,cloth,and N95 masks,speech recognition thresholds increased by 1.8 dB,4.4 dB,and 5.05 dB,respectively.Word recognition scores decreased by 32%without a mask,43.7%in a surgical mask,46.3%in a cloth mask,and 46.7%in N95 mask conditions,between SNR15 and SNR0.The speech recognition threshold was negatively affected with cloth and N95 masks.Surgical masks do not affect the word recognition scores at lower background noise levels.However,as the signal-to-noise ratio decreased,even the surgical,cloth,and N95 masks significantly impacted the word recognition score even in normal-hearing individuals.展开更多
Background Many factors interfering with a listener attempting to grasp speech in noisy environments. The spatial hearing by which speech and noise can be spatially separated may play a crucial role in speech recognit...Background Many factors interfering with a listener attempting to grasp speech in noisy environments. The spatial hearing by which speech and noise can be spatially separated may play a crucial role in speech recognition in the presence of competing noise. This study aimed to assess whether, and to what degree, spatial hearing benefit speech recognition in young normal-hearing participants in both quiet and noisy environments. Methods Twenty-eight young participants were tested by Mandarin Hearing In Noise Test （MHINT） in quiet and noisy environments. The assessment method used was characterized by modifications of speech and noise configurations, as well as by changes of speech presentation mode. The benefit of spatial hearing was measured by speech recognition threshold （SRT） variation between speech condition 1 （SC1） and speech condition 2 （SC2）. Results There was no significant difference found in the SRT between SC1 and SC2 in quiet. SRT in SC1 was about 4.2 dB lower than that in SC2, both in speech-shaped and four-babble noise conditions. SRTs measured in both SC1 and SC2 were lower in the speech-shaped noise condition than in the four-babble noise condition. Conclusion Spatial hearing in young normal-hearing participants contribute to speech recognition in noisy environments, but provide no benefit to speech recognition in quiet environments, which may be due to the offset of auditory extrinsic redundancy against the lack of spatial hearing.展开更多
目的:分别应用言语清晰度测试词表(材料一)和汉语测试词表(材料二)对1组听力正常的受试者进行言语识别阈(speech recognition threshold,SRT)测试,对所得结果进行相关分析,以期了解所选两种材料于听力正常人群的测试结果在临床上是否具...目的:分别应用言语清晰度测试词表(材料一)和汉语测试词表(材料二)对1组听力正常的受试者进行言语识别阈(speech recognition threshold,SRT)测试,对所得结果进行相关分析,以期了解所选两种材料于听力正常人群的测试结果在临床上是否具有等价性,可否交互使用。方法:选取1组听力正常受试者(50名,100耳),先后通过两种材料下的言语识别阈测试,对所得结果进行比较。结果:受试者平均纯音听阈(pure-tone average,PTA)为4.902 d B HL±3.12,言语清晰度测试词表与汉语测试词表所得SRT值分别为6.90 d B HL±3.20和6.60 d B HL±3.63;两份材料所得SRT值与PTA的差值,分别为1.998 d B HL和1.698 d B HL。上述结果两两比较,P>0.05,差异均无统计学意义。结论:两种测试材料测听结果SRT与受试组PTA一致性好,两种材料所得SRT间比较显示测试结果具有可比性,在临床上可交互应用。展开更多
文摘The objective was to measure the effect of various face masks on speech recognition threshold and the word recognition score in the presence of varying background noise levels.20 normal-hearing adult subjects(a total of 40 ears)participated.Pure tone audiometry followed by speech recognition threshold and word recognition score at the most comfortable level in varying signal-to-noise ratios(SNR0,SNR10,and SNR15)using surgical,pleated cloth,and N95 masks.Using surgical,cloth,and N95 masks,speech recognition thresholds increased by 1.8 dB,4.4 dB,and 5.05 dB,respectively.Word recognition scores decreased by 32%without a mask,43.7%in a surgical mask,46.3%in a cloth mask,and 46.7%in N95 mask conditions,between SNR15 and SNR0.The speech recognition threshold was negatively affected with cloth and N95 masks.Surgical masks do not affect the word recognition scores at lower background noise levels.However,as the signal-to-noise ratio decreased,even the surgical,cloth,and N95 masks significantly impacted the word recognition score even in normal-hearing individuals.
基金This research was supported by a grant from the National Natural Science Foundation of China （No. 30973309）.
文摘Background Many factors interfering with a listener attempting to grasp speech in noisy environments. The spatial hearing by which speech and noise can be spatially separated may play a crucial role in speech recognition in the presence of competing noise. This study aimed to assess whether, and to what degree, spatial hearing benefit speech recognition in young normal-hearing participants in both quiet and noisy environments. Methods Twenty-eight young participants were tested by Mandarin Hearing In Noise Test （MHINT） in quiet and noisy environments. The assessment method used was characterized by modifications of speech and noise configurations, as well as by changes of speech presentation mode. The benefit of spatial hearing was measured by speech recognition threshold （SRT） variation between speech condition 1 （SC1） and speech condition 2 （SC2）. Results There was no significant difference found in the SRT between SC1 and SC2 in quiet. SRT in SC1 was about 4.2 dB lower than that in SC2, both in speech-shaped and four-babble noise conditions. SRTs measured in both SC1 and SC2 were lower in the speech-shaped noise condition than in the four-babble noise condition. Conclusion Spatial hearing in young normal-hearing participants contribute to speech recognition in noisy environments, but provide no benefit to speech recognition in quiet environments, which may be due to the offset of auditory extrinsic redundancy against the lack of spatial hearing.
文摘目的:分别应用言语清晰度测试词表(材料一)和汉语测试词表(材料二)对1组听力正常的受试者进行言语识别阈(speech recognition threshold,SRT)测试,对所得结果进行相关分析,以期了解所选两种材料于听力正常人群的测试结果在临床上是否具有等价性,可否交互使用。方法:选取1组听力正常受试者(50名,100耳),先后通过两种材料下的言语识别阈测试,对所得结果进行比较。结果:受试者平均纯音听阈(pure-tone average,PTA)为4.902 d B HL±3.12,言语清晰度测试词表与汉语测试词表所得SRT值分别为6.90 d B HL±3.20和6.60 d B HL±3.63;两份材料所得SRT值与PTA的差值,分别为1.998 d B HL和1.698 d B HL。上述结果两两比较,P>0.05,差异均无统计学意义。结论:两种测试材料测听结果SRT与受试组PTA一致性好,两种材料所得SRT间比较显示测试结果具有可比性,在临床上可交互应用。
