SPEAKING RATE, VOICE-ONSET TIME, AND QUANTITY - THE SEARCH FOR HIGHER-ORDER INVARIANTS FOR 2 ICELANDIC SPEECH CUES
SPEAKING RATE, VOICE-ONSET TIME, AND QUANTITY - THE SEARCH FOR HIGHER-ORDER INVARIANTS FOR 2 ICELANDIC SPEECH CUES
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DOI：
10.3758/bf03213055
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发表时间：
1995-04-01
期刊：
影响因子：
--
通讯作者：
PIND, J
中科院分区：
文献类型：
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作者：
PIND, J
言语的时间结构已被证明是高度可变的。 说话速度、压力和其他因素会影响个人语音的持续时间。 言语的高度弹性似乎给听者带来了一个问题，特别是关于对时间言语线索的感知，如声音起始时间（VOT）和数量：听者如何将这些时间变化从语言信息的外在变化中分离出来？ 本文报道了两个冰岛语的语音线索在不同的说话速度的行为数据。 结果表明，对速率的处理会使不送气塞音和送气塞音之间的区别变得模糊。 尽管元音和辅音的绝对音长发生了很大的变化，但V：C和VC：这两类音节仍然保持着完全不同的特点。 在两个感知实验中，它表明，虽然元音的比例，押韵持续时间是主要的线索量，并保持不变，在不同的利率，没有这样的比例可以定义为VOT。 这些结果意味着，数量是这两个语音线索，是自我归一化率的唯一一个。 速率相关的语音处理模型需要解决这个差异。
The temporal structure of speech has been shown to be highly variable. Speaking rate, stress, and other factors influence the duration of individual speech sounds. The highly elastic nature of speech would seem to pose a problem for the listener, especially with respect to the perception of temporal speech cues such as voice-onset time (VOT) and quantity: How does the listener disentangle those temporal changes which are linguistically significant from those which are extrinsic to the linguistic message? This paper reports data on the behavior of two Icelandic speech cues at different speaking rates. The results show that manipulations of rate have the effect of slightly blurring the distinction between unaspirated and aspirated stops. Despite great changes in the absolute durations of vowels and consonants, the two categories of syllables--V:C and VC: -are nonetheless kept totally distinct. In two perceptual experiments, it is shown that while the ratio of vowel to rhyme duration is the primary cue to quantity and remains invariant at different rates, no such ratio can be defined for VOT. These results imply that quantity is the only one of these two speech cues that is self-normalizing for rate. Models of rate-dependent speech processing need to address this difference.