Synthesis of time-variant virtual room acoustics based on impulse response measurement, analysis, and processing

基于脉冲响应测量、分析和处理的时变虚拟房间声学综合

• 批准号: 173033-2007
• 负责人: Woszczyk, Wieslaw
• 金额: $ 1.46万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=476341
• 关键词: Synthesis; time; variant; virtual; room

The applicant proposes to research highly complex and yet unsolved problem of time-variant virtual acoustics based on measurement, analysis, and processing of spatial room impulse responses with the goal of providing the most accurate perceived reconstruction of room acoustics. The essential attribute of this simulation is time-variant room response that prevents the human ear from adapting to repeating patterns of sound. Time variance can occur due to several factors: movement of the source, change in source signal (due to direction- and frequency-dependent acoustic radiation pattern of the source), air movement and temperature variations within the room enclosure, movements of objects and people, physical changes in room boundary conditions (open doors, vibrating walls and windows, etc).

申请人提出基于空间房间脉冲响应的测量、分析和处理来研究时变虚拟声学的高度复杂且尚未解决的问题，其目标是提供最准确的感知的房间声学重建。这种模拟的基本属性是随时间变化的房间响应，防止人耳适应重复的声音模式。时间变化可能由于以下几个因素而发生：源的移动、源信号的变化（由于源的方向和频率相关的声辐射模式）、房间外壳内的空气移动和温度变化、物体和人的移动、房间边界条件的物理变化（打开的门、振动的墙壁和窗户等）。