Blind people can locate and track a sound source with remarkable efficiency. Following this principle, we have developed an autonomous embedded device capable of guiding people using a spatialized virtual sound source. In this device, we use both the information provided by an accurate and low-latency real-time location system (RTLS) and the head orientation data provided by a low-cost inertial unit (IMU) to produce in real-time spatialized sound by bin-aural filtering. The system described in this paper has been designed to minimize the overall latency for both the location system and the binaural audio rendering engine. It demonstrates that it is possible to guide people by tracking spatial sound accurately, naturally, and with minimal training.

中文翻译：

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一种帮助盲人运动的电子旅行辅助设备

盲人可以非常高效地定位和跟踪声源。遵循这一原则，我们开发了一种自主嵌入式设备，能够使用空间化虚拟声源引导人们。在该设备中，我们使用由准确且低延迟的实时定位系统 (RTLS) 提供的信息和低成本惯性单元 (IMU) 提供的头部方向数据，通过以下方式实时产生空间化声音双耳滤波。本文中描述的系统旨在最大限度地减少定位系统和双耳音频渲染引擎的整体延迟。它表明可以通过准确、自然和最少的训练来跟踪空间声音来引导人们。