论文标题
推断反射表面利用扬声器方向的位置
Inferring the location of reflecting surfaces exploiting loudspeaker directivity
论文作者
论文摘要
房间中的准确声场繁殖通常受到房间特征缺乏知识的限制。原则上，可以使用有关房间形状或附近反射边界的信息来提高繁殖的准确性。在本文中，我们提出了一种推断附近反映麦克风阵列测量边界的位置的方法。与传统方法相反，我们明确利用了扬声器方向性模型（超越全向辐射）和麦克风阵列几何形状。这种方法不需要回声的无噪声定时信息，也不需要定制的扬声器壁 - 微米孔测量步骤。仿真显示，所提出的模型优于无视混响环境中的方向性的当前方法。
Accurate sound field reproduction in rooms is often limited by the lack of knowledge of the room characteristics. Information about the room shape or nearby reflecting boundaries can, in principle, be used to improve the accuracy of the reproduction. In this paper, we propose a method to infer the location of nearby reflecting boundaries from measurements on a microphone array. As opposed to traditional methods, we explicitly exploit the loudspeaker directivity model (beyond omnidirectional radiation) and the microphone array geometry. This approach does not require noiseless timing information of the echoes as input, nor a tailored loudspeaker-wall-microphone measurement step. Simulations show the proposed model outperforms current methods that disregard directivity in reverberant environments.
