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Investigation of word recognition for the elderly in speech and noise spatial separation

机译：语音与噪声空间分离中老年人单词识别的研究

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摘要

In present study, subjective Chinese Mandarin word recognitions were carried out by 10 elderly listeners aged more than 60 years old in three rooms of a nursing house under the different reverberation time (RT), different signal-to-noise ratio (SNR) and different azimuth of noise conditions. The results showed that word recognition scores of the elderly increased with the increase of SNR and the spatial separation azimuth between speech and noise, and decreased with the increase of RT. The improvements of word recognition scores for spatial separation azimuth between speech and noise from 0 to 45 were more than those from 45 to 90 in all three rooms for the elderly. There was a great difference in the word recognition scores of hearing impairment elderly and normal hearing elderly under low SNR conditions and the difference decreased with the increase of SNR. The difference in the word recognition scores between hearing impairment participants and normal hearing participants also became smaller when the target speech and noise was spatially separated. (C) 2019 Elsevier Ltd. All rights reserved.
机译：在本研究中，主观汉语普通话单词识别是由10岁以上年龄在60岁以上的老年听众在护理室的三个房间中以不同的混响时间（RT），不同的信噪比（SNR）和不同的方式进行的。噪声条件的方位角。结果表明，老年人的单词识别分数随着信噪比的提高和语音与噪声之间的空间分离方位角的增加而增加，而随着语音识别度的提高而降低。在所有三个老年人房间中，语音和噪声之间的空间分离方位的单词识别分数从0改善到45，比从45改善到90。在低信噪比条件下，听力障碍老年人和正常听力老年人的单词识别得分差异很大，且随着信噪比的提高，差异逐渐减小。当目标语音和噪声在空间上分开时，听力障碍参与者和正常听力参与者之间的单词识别分数差异也变小。 （C）2019 Elsevier Ltd.保留所有权利。

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