Virtual musicians have become a remarkable phenomenon in the contemporary multimedia arts. However, most of the virtual musicians nowadays have not been endowed with abilities to create their own behaviors, or to perform music with human musicians. In this paper, we firstly create a virtual violinist, who can collaborate with a human pianist to perform chamber music automatically without any intervention. The system incorporates the techniques from various fields, including real-time music tracking, pose estimation, and body movement generation. In our system, the virtual musician's behavior is generated based on the given music audio alone, and such a system results in a low-cost, efficient and scalable way to produce human and virtual musicians' co-performance. The proposed system has been validated in public concerts. Objective quality assessment approaches and possible ways to systematically improve the system are also discussed.

中文翻译：

---

一种用于音乐表演的人机二重唱系统

虚拟音乐家已经成为当代多媒体艺术中的一个显着现象。然而，现在大多数虚拟音乐家还没有被赋予创造自己行为的能力，或者与人类音乐家一起演奏音乐。在本文中，我们首先创建了一个虚拟小提琴手，他可以与人类钢琴家合作，在没有任何干预的情况下自动演奏室内乐。该系统融合了来自各个领域的技术，包括实时音乐跟踪、姿势估计和身体运动生成。在我们的系统中，虚拟音乐家的行为是根据给定的音乐音频单独生成的，这样的系统以低成本、高效和可扩展的方式产生人类和虚拟音乐家的协同表演。提议的系统已在公开音乐会中得到验证。