Customized Spatial Sound for Human/Computer Interaction

目前的系统，产生空间声音的计算机为基础的应用程序采用头部相关的传递函数（HRTF）和简单的模型，房间反射，以提供声学定位线索。 然而，这些系统产生良好控制的空间声音流的能力是相当有限的。 虽然它是可能positionvirtual声源向左或向右相当准确，前/后混淆是常见的，在海拔定位是有问题的，localizationin范围是reliable.This proposal describes a comprehensive program of research directed at solvingthe major problems that are cause of these limitations. 这些问题被识别为（a）系统使用的HRTF和收听者的实际HRTF之间的不匹配，（B）当收听者相对于源移动时未能提供正确的动态线索，（c）合成的房间反射和收听者的经验或期望之间的不匹配，以及（d）未能为熟悉的声音（例如人类语音）呈现正确的频谱线索。

Current systems that generate spatial sound for computer-basedapplications employ Head-Related Transfer functions (HRTFs) andsimple models of room reflections to provide the acoustic localizationcues. However, the abilities of these systems to generate well-controlledspatial sound streams are quite limited. Although it is possible to positionvirtual sound sources to the left or right rather accurately, front/back confusion is common, localization in elevation is problematic, and localizationin range is unreliable.This proposal describes a comprehensive program of research directed at solvingthe major problems that are the cause of these limitations. These problemsare identified as (a) a mismatch between the HRTF used by the system andthe listener's actual HRTF, (b) a failure to provide the correct dynamic cuesthat occur when the listener moves relative to the source, (c) a mismatch between synthesized room reflections and the listener's experience or expectations, and(d) a failure to render the correct spectral cues for familiar sounds,such as human speech.