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首页> 外文期刊>Ear and hearing. >Influence of hearing loss on children's identification of spondee words in a speech-shaped noise or a two-talker masker
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Influence of hearing loss on children's identification of spondee words in a speech-shaped noise or a two-talker masker

机译：听力下降对儿童在语音型噪音或双向讲话者掩盖中识别脊椎单词的影响

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Objective: This study evaluated the influence of hearing loss on children's speech-perception abilities in a speech-shaped noise or a two-talker masker. For both masker conditions, it was predicted that children with hearing loss would require a more advantageous signal to noise ratio (SNR) than children with normal hearing to achieve the same criterion level of performance. However, it was hypothesized that the performance gap between children with hearing loss and children with normal hearing would be larger in the two-talker than in the speech-shaped noise masker. Design: A repeated-measures design compared the spondee identification performance of two age groups of children with hearing loss (9-11 and 13-17 years of age) and a group of children with normal hearing (9-11 years of age) in continuous speech-shaped noise or a two-talker masker. Estimates of the SNR required for 70.7% correct spondee identification were obtained using an adaptive, four-alternative, forced-choice procedure. Children were tested in the sound field. Children with hearing loss wore their personal hearing aids at their regular settings during testing. Results: Both groups of children with hearing loss performed more poorly than children with normal hearing in the speech-shaped noise masker. Younger children required an additional 2.7 dB SNR and older children required an additional 4.7 dB SNR to achieve the same level of performance as children with normal hearing. This disadvantage decreased to 8.1 dB for both age groups of children with hearing loss in the two-talker masker. For children with hearing loss, degree of hearing loss was significantly correlated with performance in the speech-shaped noise masker, but not in the two-talker masker. Conclusions: A larger performance gap was observed between children with hearing loss and children with normal hearing in competing speech than in steady state noise. These results are consistent with the hypothesis that hearing loss influenced children's perceptual processing abilities.
机译：目的：本研究评估了听力障碍对儿童在语音形状的噪音或两个讲话者掩盖的语音感知能力的影响。对于两种掩蔽条件，据预测，与正常听力的儿童相比，听力下降的儿童将需要更有利的信噪比（SNR），以达到相同的标准表现水平。但是，据推测，在两个说话者中，有听力障碍的儿童和有正常听力的儿童之间的性能差距会比语音形状的噪声掩蔽器大。设计：一项重复测量设计比较了两个年龄段有听力障碍的儿童（9-11岁和13-17岁）和一组听力正常的孩子（9-11岁）的脊椎识别性能。连续的语音状噪声或两个讲话者的掩蔽声。使用自适应的四替代强制选择程序，可以获得70.7％的正确脊椎识别所需的SNR估计值。在声场中对孩子进行了测试。听力受损的儿童在测试过程中会在常规环境下佩戴个人助听器。结果：在语音型噪音掩蔽器中，两组听力下降的儿童的表现均比正常听力的儿童差。年龄较小的孩子需要额外的2.7 dB SNR，而年龄较大的孩子需要额外的4.7 dB SNR，才能获得与听力正常的孩子相同的水平。对于双口语掩蔽者中有听力损失的两个年龄段的儿童，这一缺点均降至8.1 dB。对于有听力损失的儿童，听力下降的程度与语音型噪声掩蔽器的性能显着相关，而在两口语掩蔽器中则没有。结论：在竞争性言语中，听力障碍儿童和听力正常儿童之间的表现差距比稳态噪声中的表现差距更大。这些结果与以下假设一致：听力损失会影响儿童的知觉加工能力。

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