In contrast to the availability of consonant confusion studies with adults, to date, no investigators have compared children’s consonant confusion patterns in noise to those of adults in a single study. To examine whether children’s error patterns are similar to those of adults, three groups of children (24 each in 4–5, 6–7, and 8–9 yrs. old) and 24 adult native speakers of American English (AE) performed a recognition task for 15 AE consonants in ∕ɑ∕-consonant-∕ɑ∕ nonsense syllables presented in a background of speech-shaped noise. Three signal-to-noise ratios (SNR: 0, +5, and +10 dB) were used. Although the performance improved as a function of age, the overall consonant recognition accuracy as a function of SNR improved at a similar rate for all groups. Detailed analyses using phonetic features (manner, place, and voicing) revealed that stop consonants were the most problematic for all groups. In addition, for the younger children, front consonants presented in the 0 dB SNR condition were more error prone than others. These results suggested that children’s use of phonetic cues do not develop at the same rate for all phonetic features.
展开▼
机译:迄今为止,与成人进行辅音混淆研究相比,目前尚无研究人员将儿童的辅音混淆方式与成年人的杂音混淆方式进行比较。为了检查儿童的错误模式是否与成年人相似,三组儿童(每4至5岁,6至7岁和8至9岁各24岁)和24位以美国英语为母语的成人(英语)语音噪声背景下呈现的∕ɑ∕-辅音-∕ɑ∕无意义音节中15个AE辅音的识别任务。使用了三种信噪比(SNR:0,+ 5和+10 dB)。尽管性能随着年龄的增长而提高,但所有辅音的总体辅音识别准确度均以SNR的速率得到改善。使用语音特征(方式,位置和发声)进行的详细分析表明,对于所有组来说,辅音是最成问题的。此外,对于年幼的孩子,在0 dB SNR条件下出现的前辅音比其他人更容易出错。这些结果表明,儿童对所有语音功能使用语音提示的速度并不相同。
展开▼