Siebein Gary W, Gold Martin A, Siebein Glenn W, Ermann Michael G
University of Florida, Gainesville.
Siebein Associates, Inc., Gainesville, FL.
Lang Speech Hear Serv Sch. 2000 Oct 1;31(4):376-384. doi: 10.1044/0161-1461.3104.376.
The purpose of this article is to describe the use of impulse response measures and observations in Florida classrooms. As a result of measures and observations in "healthy" and poor acoustical environments, 10 practical recommendations are proposed for improving the acoustical environment in schools. The primary research for these recommendations consisted of recording acoustical measurements of reverberation time and background noise, as well as newer acoustical measurements based on impulse response techniques, in 56 actual classrooms. Observations of classroom situations occurred in a subset of these schools. Computer and physical models of eight classrooms were constructed and tested with varying room finish materials and background noise levels to study the comeverberation bined effects of these architectural items on speech perception in the model rooms. The primary recommendations all relate to school design and planning. These include air-conditioning system selection and noise control techniques to minimize interference with listening, interior classroom acoustical design principles for maximizing speech perception, and the documentation of teaching methods and classroom arrangements that result in improving speech intelligibility and other factors affecting speech perception.
本文旨在描述佛罗里达州教室中脉冲响应测量与观察的应用。通过在“良好”和声学环境较差的环境中进行测量与观察，提出了10条改善学校声学环境的实用建议。这些建议的主要研究包括在56间实际教室中记录混响时间和背景噪声的声学测量数据，以及基于脉冲响应技术的更新的声学测量数据。在这些学校的一部分中对课堂情况进行了观察。构建并测试了8间教室的计算机模型和实体模型，改变房间装修材料和背景噪声水平，以研究这些建筑因素对模型房间内语音感知的综合影响。主要建议均与学校设计和规划有关。这些建议包括空调系统的选择和噪声控制技术，以尽量减少对听力的干扰；室内教室声学设计原则，以最大限度地提高语音清晰度；以及记录能提高语音可懂度和其他影响语音感知因素的教学方法和课堂布置。
