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首页> 外文会议>International Congress on Acoustics >Cochlear-lmplanted Children's Perception of Mandarin Tones in Normal Speech and Whispered Speech
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Cochlear-lmplanted Children's Perception of Mandarin Tones in Normal Speech and Whispered Speech

机译：耳蜗植入儿童对正常演讲的普通话语音的看法和低声说话

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摘要

Since cochlear implants lack an efficient coding of fine structures of speech including FO, it is generally difficult for cochlear-implanted (CI) children to perceive linguistic tones, of which FO is the primary acoustic cue. In whispered speech, however, FO is missing and no longer serves as an acoustic cue of tones. Using a picture selection task, we compared the identification of Mandarin four tones in isolated syllables between two groups of 4-to-5-year-old children, i.e., CI and normal-hearing (NH) groups, in both normal speech and whispered speech. For normal speech, NH showed significantly higher identification than CI, regardless of tone which showed no significant effect. For whispered speech, both groups identified T3 better than other three tones, possibly due to their use of other cues for T3; also, no significant difference was found between the two groups on all tones but T3, on which NH showed significantly higher identification than CI, suggesting that NH retrieved the voice quality cue for T3 better than CI. In both groups, identification rate was significantly lower for whispered speech than for normal speech, but the decrease in the rate was greater in NH than in CI, confirming that NH's tone perception relied more on FO.
机译：由于耳蜗植入物缺乏在包括FO的细结构的有效编码，因此临床植入（CI）儿童通常难以感知语言色调，其中FO是主要声学提示。然而，在低语的演讲中，FO缺失，不再是音调的声学线索。使用图片选择任务，将普通话的识别与孤立的音节中的四个音节进行比较，即在正常演讲中，CI和正常听证（NH）组，以及低声说演讲。对于正常的语音，无论口气显示出没有显着效果的音调，NH都显示出明显较高的鉴定。对于低语的言论，这两个群体都比其他三种音调更好地确定了T3，可能是由于它们使用其他提示的T3;此外，在所有音调的两组之间没有发现显着差异，但T3，其中NH显示出比CI显着更高的识别，表明NH比CI更好地检测到T3的语音质量提示。在这两组中，对低声语音的识别率明显降低，而对正常的言论，但NH的速度下降比CI更大，确认NH的音调感知更多地依赖于FO。

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