论文标题
透视启动器 - 单个单调的Ambisonic Room Impulse响应
The PerspectiveLiberator -- an upmixing 6DoF rendering plugin for single-perspective Ambisonic room impulse responses
论文作者
论文摘要
如今，虚拟现实接口允许用户实际上以六个自由度（6DOF）的方式更改视角，并且与视觉部分一致，声音透视图需要进行交互更新。具有动态头部旋转的单个单调渲染已经与上阶的Ambisonic Room脉冲响应（ASDM，SIRR等）相当可靠地起作用。此贡献为插件提供了一个插件，可以通过实时透视外推断从测量的角度来释放虚拟透视图：透视图。该插件允许在两种不同的算法之间选择方向分辨率增强（ASDM，4DE）。对于基于卷积的6DOF渲染的主要任务，该插件在早期的Ambisonic Room脉冲响应中检测并定位了突出的定向声音事件，并以方向，到达时间和级别的级别重新编码，并适应了虚拟听众的可变视角。弥漫性残差在方向分辨率方面得到了增强，但不受翻译运动的影响，以保护尽可能多的原始房间印象。
Nowadays, virtual reality interfaces allow the user to change perspectives in six degrees of freedom (6DoF) virtually, and consistently with the visual part, the acoustic perspective needs to be updated interactively. Single-perspective rendering with dynamic head rotation already works quite reliably with upmixed first-order Ambisonic room impulse responses (ASDM, SIRR, etc.). This contribution presents a plugin to free the virtual perspective from the measured one by real-time perspective extrapolation: The PerspectiveLiberator. The plugin permits selecting between two different algorithms for directional resolution enhancement (ASDM, 4DE). And for its main task of convolution-based 6DoF rendering, the plugin detects and localizes prominent directional sound events in the early Ambisonic room impulse response and re-encodes them with direction, time of arrival, and level adapted to the variable perspective of the virtual listener. The diffuse residual is enhanced in directional resolution but remains unaffected by translatory movement to preserve as much of the original room impression as possible.
