Measuring Breathiness with an Auditory Processing Model
用听觉处理模型测量呼吸
基本信息
- 批准号:6767291
- 负责人:
- 金额:$ 17.59万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-05-01 至 2006-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
DESCRIPTION (provided by applicant): Measurement of voice quality is important for making several decisions regarding the management of patients with voice disorders. It has been shown that subjective ratings of voice quality made in a routine clinical set-up are highly inconsistent, and may not be valid measures of voice quality. An alternative approach to measure voice quality is to develop acoustic measures that closely correspond with listeners' perception of voice quality. However, none of the measures developed thus far show a high and consistent correlation with listener's perception of the vocal quality under study. The poor and inconsistent correlation between acoustic measures and perceptual ratings of voice quality may arise from the non-linear and multidimensional relationship between the acoustic signal and its perceptual correlate. Non-linear relationships between a physical stimulus and its psychophysical correlate are seen in all human sensory systems. For example, in the auditory domain the relation between intensity and loudness is better explained by the power law and that between frequency and pitch is better mapped using the Mel or the Bark scale. Recent advances in psychoacoustics and auditory physiology has led to the development of several auditory models which are capable of accounting for such non-linear phenomena. Because these non-linear processes are inherent to all auditory perceptual tasks, these also affect how a specific vocal acoustic signal affects the perception of voice quality. This research will investigate the use of an auditory processing model as a signal processing front end to study voice quality. It is hypothesized that the output of such an auditory model will provide objective measures of voice quality that show a high and consistent correlation with perceptual ratings of voice quality. The proposed research seeks to (1) study the effects of specific changes in vocal acoustic signal on the perception of breathy voice quality, (2) use an auditory processing model to understand what changes in the auditory spectrum lead to the changes in perceived voice quality, and (3) develop objective measures to explain perceptual data in synthetic and natural vowels.
描述(由申请人提供):嗓音质量的测量对于作出有关嗓音障碍患者的治疗的几个决定是重要的。已经表明,在常规临床设置中对语音质量的主观评级是高度不一致的,并且可能不是语音质量的有效衡量标准。测量声音质量的另一种方法是开发与听者对声音质量的感知紧密一致的声学测量。然而,到目前为止,没有一种测量方法显示出与受试者对所研究的发声质量的感知高度一致的相关性。声学测量和语音质量的感知评级之间的较差和不一致的相关性可能源于声学信号与其感知相关性之间的非线性和多维关系。生理刺激及其心理物理关联之间的非线性关系在所有人类感觉系统中都可以看到。例如,在听觉领域,强度和响度之间的关系可以更好地用幂定律来解释,而频率和音调之间的关系可以使用MEL或Bark标度来更好地映射。心理声学和听觉生理学的最新进展导致了几种能够解释这种非线性现象的听觉模型的发展。由于这些非线性过程是所有听觉感知任务所固有的,这些过程也会影响特定的声学信号如何影响对语音质量的感知。这项研究将调查使用听觉处理模型作为信号处理前端来研究语音质量。假设这样的听觉模型的输出将提供与语音质量的感知评级高度一致的语音质量的客观测量。这项研究旨在(1)研究声学信号的特定变化对呼吸音质感知的影响,(2)使用听觉加工模型来理解听觉频谱的变化导致感知音质的变化,以及(3)开发客观的测量方法来解释合成元音和自然元音中的感知数据。
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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RAHUL SHRIVASTAV其他文献
RAHUL SHRIVASTAV的其他文献
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{{ truncateString('RAHUL SHRIVASTAV', 18)}}的其他基金
A psychoacoustic approach to dysphonic voice quality perception in vowels
元音语音质量感知的心理声学方法
- 批准号:
7876709 - 财政年份:2007
- 资助金额:
$ 17.59万 - 项目类别:
A psychoacoustic approach to dysphonic voice quality perception in vowels
元音语音质量感知的心理声学方法
- 批准号:
8468822 - 财政年份:2007
- 资助金额:
$ 17.59万 - 项目类别:
A psychoacoustic approach to dysphonic voice quality perception in vowels
元音语音质量感知的心理声学方法
- 批准号:
7302944 - 财政年份:2007
- 资助金额:
$ 17.59万 - 项目类别:
A psychoacoustic approach to dysphonic voice quality perception in vowels
元音语音质量感知的心理声学方法
- 批准号:
7640691 - 财政年份:2007
- 资助金额:
$ 17.59万 - 项目类别:
A psychoacoustic approach to dysphonic voice quality perception in vowels
元音语音质量感知的心理声学方法
- 批准号:
7447447 - 财政年份:2007
- 资助金额:
$ 17.59万 - 项目类别:
Measuring Breathiness with an Auditory Processing Model
用听觉处理模型测量呼吸
- 批准号:
6886738 - 财政年份:2004
- 资助金额:
$ 17.59万 - 项目类别:
Measuring Breathiness with an Auditory Processing Model
用听觉处理模型测量呼吸
- 批准号:
7058437 - 财政年份:2004
- 资助金额:
$ 17.59万 - 项目类别:
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