Departamento de Filología Española, Campus de Teatinos s/n, Universidad de Málaga, 29071 Málaga, Spain.
Departamento Lengua Española y Lingüística General, Universidad de Murcia Campus de La Merced, 30001 Murcia, Spain.
J Acoust Soc Am. 2018 Jul;144(1):69. doi: 10.1121/1.5044416.
This paper presents the results of closed-set recognition task for 80 Spanish consonant-vowel sounds in 8-talker babble. Three groups of subjects participated in the study: a group of children using cochlear implants (CIs; age range: 7-13), an age-matched group of children with normal hearing (NH), and a group of adults with NH. The speech-to-noise ratios at which the participants recognized 33% of the target consonants were +7.8 dB, -3 dB, and -6 dB, respectively. In order to clarify the qualitative differences between the groups, groups were matched for the percentage of recognized syllables. As compared with the two groups with NH, the children with CIs: (1) produced few "I do not know" responses; (2) frequently selected the voiced stops (i.e., /b, d, ɡ/) and the most energetic consonants (i.e., /l, r, ʝ, s, ʧ/); (3) showed no vowel context effects; and (4) had a robust voicing bias. As compared with the adults with NH, both groups of children showed a fronting bias in place of articulation errors. The factors underlying these error patterns are discussed.
本文介绍了在 8 位说话者背景噪声下对 80 个西班牙语元音-辅音的闭集识别任务的结果。三组受试者参与了这项研究：一组使用人工耳蜗的儿童（年龄范围：7-13 岁）、一组年龄匹配的正常听力儿童（NH）和一组正常听力成年人（NH）。参与者识别 33%目标辅音的语音噪声比分别为+7.8dB、-3dB 和-6dB。为了阐明组间的定性差异，将各组匹配为识别音节的百分比。与两个 NH 组相比，使用人工耳蜗的儿童：(1) 较少发出“我不知道”的反应；(2) 经常选择浊音停止音（即 /b、d、ɡ/）和最有能量的辅音（即 /l、r、ʝ、s、ʧ/）；(3) 没有元音语境效应；并且 (4) 具有稳健的浊音偏好。与 NH 组的成年人相比，两组儿童都表现出发音位置偏前的错误倾向。讨论了这些错误模式的潜在因素。
