Contributions of lexical tone to Mandarin sentence recognition in hearing-impaired listeners under noisy conditions
Contributions of lexical tone to Mandarin sentence recognition in hearing-impaired listeners under noisy conditions
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噪声环境下语调对听障者普通话句子识别的贡献
DOI：
10.1121/1.5120543
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发表时间：
2019-08-01
影响因子：
2.4
通讯作者：
Xu, Li
中科院分区：
文献类型：
--
作者：
Li, Nan;Wang, Shuo;Xu, Li
使用自然声调和平声调句子的普通话句子识别测试在 22 名感音神经性听力损失 (SNHL) 受试者和 25 名听力正常 (NH) 听众中进行，测试对象是在安静、语音形状的噪声和两个说话者喋喋不休的条件下。当信噪比 (SNR) >= 0dB 时，NH 听众中平音对句子识别的影响很小，而 SNHL 听众在安静和 +5 dB SNR 时表现出平音句子识别能力下降。这种表现的下降与他们的听力损失程度相关。词汇声调对于听力受损的听众在安静和噪音聆听条件下的句子识别有很大贡献。
Mandarin sentence recognition using natural-tone and flat-tone sentences was tested in 22 subjects with sensorineural hearing loss (SNHL) and 25 listeners with normal hearing (NH) in quiet, speech-shaped noise, and two-talker-babble conditions. While little effects of flat tones on sentence recognition were seen in the NH listeners when the signal-to-noise ratio (SNR) was >= 0dB, the SNHL listeners showed decreases in flat-tone-sentence recognition in quiet and at +5-dB SNR. Such declined performance was correlated with their degrees of hearing loss. Lexical tone contributes greatly to sentence recognition in hearing-impaired listeners in both quiet and in noise listening conditions.