Networked Speaker Array Streaming Back to Client: the World's Most Expensive Sound Spatializer?
Networked Speaker Array Streaming Back to Client: the World's Most Expensive Sound Spatializer?
复制标题
网络扬声器阵列流回客户端：世界上最昂贵的声音空间化器？
DOI：
10.1145/218380.218495
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Yoshiki Yatsuyanagi
中科院分区：
文献类型：
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作者：
Michael Cohen;Takuya Azumi;M. Sasaki;Osamu Takeichi;Yoshiki Yatsuyanagi
我们将UniversityBusiness Innovation Center的3D Theater 1的空间声音功能与我们的协作虚拟环境套件2集成在一起，构建了一个基于实际房间的声音空间化器，它可以将人工定向的源自然地与环境声音联合收割机结合起来，并通过反射器向运行多模式组件的指定用户单播或广播，这样他们就可以体验到远程呈现和对人工空间化源的动态控制。配备有两组声音空间化扬声器阵列的“现实室”被联网以允许远程控制。用Java 3D制作的界面呈现了该空间的3D模型，沿着小部件，通过可配置为立体或混合模式（“安全摄像头”）样式的透视显示来控制其三个空间音频混合。从天花板中间悬挂的双耳假人头部拾取声景，包括由半球形和赤道扬声器阵列空间化的源以及环境声音（如房间里的人的声音）。立体声对由MPEG-4广播器捕获、采样、数字化、压缩和编码，并由网络流服务器流传输回原始远程客户端，该反馈关闭控制/显示回路。
We have integrated the spatial sound capability of our UniversityBusiness Innovation Center’s 3D Theater 1 with our collaborative virtual environment suite, 2 building a sound spatializer based on the actual room, which can combine artificially directionalized sources naturally with ambient sounds and transmit to remote users, either unicast or broadcast through a reflector to designated users running multimodal groupware, so they can experience telepresence and dynamic control of artificially spatialized sources. A “reality room” equipped with two sets of sound spatialization speaker arrays is networked to allow remote control. An interface crafted with Java3D presents a 3D model of that space, along with widgets to steer its three mixels of spatial audio, through a perspective display configurable for stereographic or mixed-mode (“security camera”) styles. A binaural dummy head suspended from the middle of the ceiling picks up the soundscape, comprising sources spatialized by hemispherical and equatorial speaker arrays as well as ambient sounds (like the voices of people in the room). The stereo pair is captured, sampled, digitized, compressed and encoded by an MPEG-4 broadcaster, and streamed by a network streaming server back to the original remote client, which feedback closes the control/display loop.