SGER: Measuring the Energy Costs of Speech Movements

SGER：测量言语运动的能量成本

• 批准号: 9901021
• 负责人: Bjorn Lindblom
• 金额: $ 0.8万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-02-01 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901021&HistoricalAwards=false
• 关键词: SGER; Measuring; Energy; Costs; Speech

9901021LINDBLOMThe goal of this research is to develop a system for measuring the metabolic energy costs of speech movements. The project involves building the equipment, testing its feasibility and preliminarily assessing its performance on various speech materials. If, as we believe to be the case, it is indeed possible to make such measurements reliably and meaningfully, such a result would have important implications for linguistics and related fields. It bears on the classical notion of 'articultory ease '.The present project will evaluate two different solutions to the measuring of speech energy costs. Our first approach is similar to the technique traditionally used by experimental biologists in the study of whole body movements. It involves the use of an air flow meter and an oxygen concentration analyzer to derive the amount of O2 used during the speech task. The other method is expected to provide higher resolution. It works by freezing the outgoing breath stream at four different temperatures to successively extract water, carbon dioxide, oxygen and nitrogen. By comparing the amounts obtained for speech and for rest over a certain time period, significant readings should be possible. Our goal is to assess the limitations and merits of these two techniques and to obtain preliminary information on the feasibility and precision of various experimental protocols.

9901021LINDBLOM这项研究的目标是开发一种测量言语运动代谢能量成本的系统。该项目包括建造设备，测试其可行性，并初步评估其在各种语音材料上的性能。如果像我们认为的那样，确实有可能进行可靠和有意义的测量，那么这样的结果将对语言学和相关领域产生重要影响。本项目将评估两种不同的语音能量成本测量方案。我们的第一种方法类似于实验生物学家在研究全身运动时传统上使用的技术。它包括使用空气流量计和氧气浓度分析器来计算演讲任务中使用的氧气量。另一种方法有望提供更高的分辨率。它的工作原理是在四个不同的温度下冻结呼出的气流，依次提取水、二氧化碳、氧气和氮气。通过比较在一段时间内演讲和休息所获得的量，应该有可能获得显著的读数。我们的目标是评估这两种技术的局限性和优点，并获得关于各种实验方案的可行性和精确度的初步信息。