Binaural Resynthesis for Comparative Studies of Acoustical Environments
Binaural Resynthesis for Comparative Studies of Acoustical Environments
复制标题
用于声学环境比较研究的双耳再合成
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
S. Weinzierl
中科院分区：
文献类型：
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作者：
A. Lindau;Torben Hohn;S. Weinzierl
提出了双耳再合成声学环境的比较研究框架。它包括一个软件控制的多自由度自动化头部和躯干模拟器，一个用于采集高空间分辨率双耳脉冲响应的集成测量设备，一个能够一次渲染多个声学场景的头部跟踪实时卷积软件，以及一个根据不同测试设计进行听力测试的用户界面。讨论了优化测量过程的方法，以及不同的数据还原方法。给出了系统的感知评估结果，其中声学真实感和声学场景的双耳再合成在直接的A/B比较中遇到。该框架第一次允许研究收听者瞬间重新定位到不同的双耳呈现的声学场景的感知。
A framework for comparative studies of binaurally resynthesized acoustical environments is presented. It consists of a software-controlled, automated head and torso simulator with multiple degrees of freedom, an integrated measurement device for the acquisition of binaural impulse responses in high spatial resolution, a head-tracked realtime convolution software capable to render multiple acoustic scenes at a time, and a user interface to conduct listening tests according to different test designs. Methods to optimize the measurement process are discussed, as well as different approaches to datareduction. Results of a perceptive evaluation of the system are shown, where acoustical reality and binaural resynthesis of an acoustic scene were confronted in direct A/B comparison. The framework permits, for the first time, to study the perception of a listener instantaneously relocated to different binaurally rendered acoustical scenes.