DYNAMICS OF VOCAL TRACT SHAPING

声带塑造的动力学

• 批准号: 7054095
• 负责人: SHRIKANTH NARAYANAN
• 金额: $ 40.63万
• 依托单位: UNIVERSITY OF SOUTHERN CALIFORNIA
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-05-01 至 2009-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7054095
• 关键词: behavioral /social science research tag; body movement; clinical research; head movements; human subject; image processing; imaging /visualization /scanning; larynx; lip; magnetic resonance imaging; mathematical model; morphology; mouth; neck; nonEnglish language; pharynxs; phonology; sound; speech; technology /technique development; time resolved data; tongue; video recording system; vocal cords; vocalization

DESCRIPTION (provided by applicant): The long term goals of this project are to wed state-of-the-art technology for imaging the vocal tract with a linguistically informed analysis of the speech tasks or goals requisite in the production of spoken language. Our team has developed an approach for MRI image reconstruction rates of 24 images per second, making veridical real-time movies of speech production possible for the first time without X-rays (Narayanan, Nayak, Lee Sethy, & Byrd, in press). Data show clear real-time movements of the lips, tongue, and velum, providing us exquisite information about the spatiotemporal properties of speech gestures in both the oral and pharyngeal portions of the vocal tract. Our long-term goal is to understand the aspects of vocal tract shaping that are critically controlled during speech, both for sounds known to be complex in geometry (e.g.,/r/ & sibilant fricatives) and for sounds known to be complex in their temporal structuring (e.g.,/I/ & diphthongs). An understanding of vocal tract shape as a fundamentally dynamic aspect of linguistic organization will do much to add to the field's current--basically static (i.e., postural & fixed time-point)--approach to describing the production of speech. The specific aims of this proposal are to further develop the technology and analysis platform of real-time MRI, which provides the scaffolding for the project, while pursuing production studies in three areas: sounds thought to have sequential vocal tract constriction goals, sounds with prosodically-sensitive coordination of vocal tract constriction goals, and sounds with geometrically complex vocal tract shaping goals. An appropriate understanding of how these sounds are produced in space and time is fundamentally a phonological question in that it bears directly on the phonological representation of segmental units, a representation that we take to be intrinsically articulatory and dynamic.

描述（由申请人提供）：该项目的长期目标是通过对语音任务或口语生产中必不可少的语音任务或目标进行语言知情分析来对人声道进行成像。我们的团队已经开发了每秒24张图像的MRI图像重建率的方法，这使得在没有X射线的情况下首次成为了语音制作的垂直实时电影（Narayanan，Nayak，Lee Sethy和Byrd，印刷中）。数据显示了嘴唇，舌头和丝绒的明确实时运动，为我们提供了有关声带的口腔和咽部部分中语音手势的时空特性的精致信息。我们的长期目标是了解语音塑造的各个方面，这些方面在语音期间受到严格控制，因为声音在几何学上很复杂（例如/ r/＆r/＆sibibinant摩擦剂），并且在其时间构造（例如/ i/ i/＆diphthongs）中已知的声音很复杂。对语音形状的理解是语言组织的根本动态方面，将有很大的努力增加了该领域的当前静态（即姿势和固定时间点） - 描述语音产生的方法。该提案的具体目的是进一步开发实时MRI的技术和分析平台，该平台为项目提供了脚手架，同时在三个领域进行生产研究：被认为具有顺序的声带收缩目标，声音的声音具有声音收缩目标的敏感性协调，并具有与地质声音构造的声音相关的，声音具有声音。对这些声音在时空中如何产生的适当理解从根本上是一个语音问题，因为它直接依赖于节段单元的语音表示，我们认为这是本质上的表达和动态的。