HUMAN HEARING-MODELS OF PITCH AND LOCATION

音高和位置的人类听觉模型

• 批准号: 3216003
• 负责人: WILLIAM M HARTMANN
• 金额: $ 10.64万
• 依托单位: MICHIGAN STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3216003
• 关键词: auditory discrimination; auditory feedback; auditory pathways; auditory stimulus; auditory threshold shift; auditory tracking; binaural hearing; biological models; cues; hearing; hearing tests; human subject; neural information processing; neurophysiology; psychoacoustics; psychometrics; sonar; sound frequency; stimulus /response

DESCRIPTION: (Adapted from the Applicant's Abstract.) The projects in this application test ideas about the way that human listeners localize sounds. Particularly, these projects test the idea that sources in the median vertical plan (MVP) are localized on the basis of spectral cues such as direction bands. An elementary test is to study MVP localization using signals of different spectral distribution to find the kinds of linear distortions that cause listeners to make errors. Also, the idea of spectrally-based localization has implications for the precedence effect: In sharp contrast to localization in the horizontal plane, localization based upon direction bands should show no precedence effect for ongoing broad-band noise. Again, unlike azimuthal localization, spectrally-based localization should not be changed if reflections from a ceiling are substituted for reflections from a floor. The time constants for the precedence effect for spectrally-based localization can be measured in several different ways, and if the fundamental ideas are correct then these measurements should agree. A model of localization based upon direction bands also requires rules about how cues from different spectral regions are combined. In some cases different spectral bands, heard simultaneously, are perceived as separate sources. In other cases, the bands are combined to create a fused source image. It is also important to know how information from vertical localization is combined with information on localization in the horizontal plane to create an image in three dimensions. Experiments proposed in this application address all those predictions and questions. Other experiments, on localization in the horizontal plane, are designed to solve measurement problems, specifically understanding the effects on localization and on source identification that occur when the range of sources and the range of response options is

描述：（根据申请人的摘要进行了改编。） 应用程序测试想法关于人类听众本地化的声音的方式。 特别是，这些项目测试了中位数的想法 垂直计划（MVP）是根据光谱线索（例如 方向带。 基本测试是使用 不同光谱分布的信号以找到线性的类型 导致听众犯错误的扭曲。 另外， 基于频谱的本地化对优先效应有影响： 与水平平面中的定位形成鲜明对比，定位 基于方向，频带不应显示出持续的优先效应 宽带噪音。 同样，与方位角本地化不同，基于频谱 如果天花板的反射是 取代地板的反射。 时间常数 可以在基于光谱的本地化的优先效果中测量 几种不同的方式，如果基本想法正确，那么这些 测量应同意。 基于方向的本地化模型 乐队还需要有关如何提示不同光谱区域的提示的规则 合并。 在某些情况下，不同的光谱带听到了 同时将其视为单独的来源。 在其他情况下， 频段合并以创建融合的源图像。 这也很重要 知道如何将来自垂直本地化的信息与 有关在水平平面中定位的信息，以创建图像 三个维度。 在此申请地址中提出的实验全部 这些预测和问题。 其他实验，关于在 水平平面旨在解决测量问题，特别是 了解对本地化和对来源识别的影响 当来源范围和响应选项的范围是