EFFECT OF NOISE AND REVERBERATION ON BINAURAL AND MONAURAL WORD IDENTIFICATION BY SUBJECTS WITH VARIOUS AUDIOGRAMS
EFFECT OF NOISE AND REVERBERATION ON BINAURAL AND MONAURAL WORD IDENTIFICATION BY SUBJECTS WITH VARIOUS AUDIOGRAMS
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DOI：
10.1044/jshr.2403.375
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发表时间：
1981-01-01
期刊：
影响因子：
--
通讯作者：
MASON, D
中科院分区：
文献类型：
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作者：
NABELEK, AK;MASON, D
采用改良韵律测验(MRT)(Bell等人，1972；Kreul等人，1968)测试双侧感音神经性耳聋受试者的单词识别能力。受试者在混响时间(T)为0.1和0.5 S的房间内进行测试，同时在不同的语音噪声比(S/N)下进行单耳、双耳、辅助和非辅助听。一个由20个声音组成的嘈杂声被用作掩护。在具有不同听力图的15名受试者中，发现显著的个体差异。当一个组减少到7个听力图相似的受试者时，差异并不显著。双耳听力相对于单耳听力的优势是显著的，不依赖于混响或助听器的使用。S/N和T的效果均显著。S/N从安静降至+5分贝和T由0.1升至0.5 S对单词识别成绩的影响与个体呈中度相关。对噪音和混响的敏感性存在个体差异，听力图不对称的受试者最容易受到影响。对噪声或混响中的辅音错误的分析表明，捷运没有显著差异。在噪声和混响条件下，测试词声尾位置上的辅音错误存在显著差异。
The Modified Rhyme Test (MRT) (Bell et al., 1972; Kreul et al., 1968) was used to test the word-identification ability of subjects with bilateral sensorineural hearing losses. The subjects were tested in a room with reverberation times (T) of 0.1 and 0.5 s while listening monaurally, binaurally, aided and unaided at various speech-to-noise ratios (S/N). A babble of 20 voices was used as a masker. Significant individual differences were found in a group of 15 subjects with various audiograms. The differences were not significant when a group was reduced to 7 subjects with similar audiograms. The advantage of the binaural over monaural listening was significant and did not depend on reverberation or the use of hearing aids. Both the effects of S/N and T were significant. The effects on word-identification scores caused by a decrease in S/N from quiet to +5 dB and by an increase in T from 0.1 to 0.5 s were moderately correlated for individuals. There were individual differences in susceptibility to noise and reverberation, with subjects having asymmetrical audiograms being most susceptible. The analysis of consonant errors in noise or reverberation revealed no significant difference for the MRT. A significant difference emerged between consonant errors in the initial and final positions of the test words in both noise and reverberation.