ACOUSTIC AND PERCEPTUAL INVARIANCE IN SPEECH
语音中的声学和感知不变性
基本信息
- 批准号:3215853
- 负责人:
- 金额:$ 13.07万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:1982
- 资助国家:美国
- 起止时间:1982-06-01 至 1995-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The broad objectives of this proposal are to develop, test, and
refine a theory of acoustic invariance in speech. We will extend our
research on the acoustic properties for a number of phonetic features and
phonetic contrasts. We will investigate fricative place of articulation
by exploring the spectral patterns in the frication noise, the voicing of
syllable-initial fricatives preceded by voiced and voiceless stops by
exploring the characteristics of glottal excitation in the fricative
noise and in the regions near the boundaries of the fricative onset and
offset, the stop/glide manner of articulation by examining the patterns
of amplitude change occurring in particular frequency regions in the
vicinity of the stop-glide release, and nasal manner of articulation by
examining the amplitude of the nasal murmur as well as the frequency
characteristics of the murmur. We will investigate the effects of
particular sources of variability on invariant properties, including the
effects of the juxtaposition of consonantal properties on adjacent
consonantal properties, the effects of the phonetic inventory of a
particular language on the nature of acoustic properties, and the effects
of speaker-rate on acoustic properties. Finally, we will explore the
extent to which acoustic/phonetic properties affect word recognition and
lexical access. We will investigate the extent to which sub-phonetic
variations (voiceonset time) and phonological variations (syllable
reduction) affect word recognition, we will explore whether an acoustic
'trace' associated with a particular phonetic feature is left in a
phonetic segment that undergoes rule-governed phonetic and phonological
processes and whether the 'trace' conforms to invariant properties
associated with the phonetic feature; and, we will explore the extent to
which the acoustic properties of a word affect lexical access and in
particular semantic priming.
Our general research strategy includes performing detailed acoustic
analyses of natural speech tokens and conducting perception experiments
using synthetic and computer-edited natural speech. The goals of the
acoustic analyses are to identify those invariant properties relating to
particular phonetic features, to devise algorithms for quantifying these
properties, and to test the effectiveness of these measures by applying
them to a new set of natural speech data. Perception experiments will be
conducted to help us focus on potentially critical portions of the
acoustic signal where invariant properties are likely to reside, and to
explore the perceptual consequences of these properties for the
identification of particular phonetic dimensions. Lexical decision
experiments will be conducted to explore the effects of acoustic/phonetic
properties on lexical access.
该提案的主要目标是开发、测试和
完善语音声学不变性理论。 我们将扩大我们的
语音特征的声学特性研究,
语音对比 我们将研究发音的摩擦音部位
通过探索摩擦噪声中的频谱模式,
音节首擦音前有浊塞音
探讨摩擦音中声门兴奋的特点
噪声和摩擦音起始边界附近的区域,
偏移,通过检查模式来确定关节的停止/滑动方式
在特定的频率区域发生的振幅变化,
止动-滑动释放附近,以及通过
检查鼻杂音的振幅和频率
杂音的特征。 我们将研究
不变量属性的特定可变性来源,包括
辅音性质并置对相邻辅音的影响
辅音特性,语音库存的影响,
特别是语言对声学性质的影响,以及
扬声器速率对声学特性的影响。 最后,我们将探讨
声学/语音特性影响单词识别的程度,
词汇存取 我们将调查在多大程度上,
变音(声音起始时间)和语音变音(音节
减少)影响单词识别,我们将探讨是否声学
与特定语音特征相关联的“痕迹”被留在
一个语音片段,它经历了语音和音韵的规则支配
进程以及“跟踪”是否符合不变属性
与语音特征相关;并且,我们将探索
一个词的声学特性会影响词汇的通达,
特别是语义启动。
我们的一般研究策略包括执行详细的声学
分析自然语音标记并进行感知实验
使用合成和计算机编辑的自然语音。 的目标
声学分析是为了识别那些与
特别是语音特征,以设计量化这些算法
性能,并通过应用这些措施来测试其有效性
将它们转换为一组新的自然语音数据。 感知实验将是
进行,以帮助我们专注于潜在的关键部分,
声学信号,其中不变的属性可能驻留,并
探索这些属性的感知后果,
识别特定的语音维度。 词汇判断
实验将探讨声学/语音的影响,
词法访问的属性。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Sheila E Blumstein其他文献
Sheila E Blumstein的其他文献
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{{ truncateString('Sheila E Blumstein', 18)}}的其他基金
A Pilot Therapy Program to Improve Phonetic Production in Aphasia
改善失语症语音产生的试点治疗计划
- 批准号:
8616744 - 财政年份:2013
- 资助金额:
$ 13.07万 - 项目类别:
A Pilot Therapy Program to Improve Phonetic Production in Aphasia
改善失语症语音产生的试点治疗计划
- 批准号:
8491045 - 财政年份:2013
- 资助金额:
$ 13.07万 - 项目类别:
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