IEEE Trans Haptics. 2023 Apr-Jun;16(2):228-239. doi: 10.1109/TOH.2023.3266194. Epub 2023 Jun 20.
We propose a method that stimulates musical vibration (generated from and synchronized with musical signals), modulated by the direction and distance to the target, on both sides of a user's neck with Hapbeat, a necklace-type haptic device. We conducted three experiments to confirm that the proposed method can achieve both haptic navigation and enhance the music-listening experience. Experiment 1 consisted of conducting a questionnaire survey to examine the effect of stimulating musical vibrations. Experiment 2 evaluated the accuracy (deg) of users' ability to adjust their direction toward a target using the proposed method. Experiment 3 examined the ability of four different navigation methods by performing navigation tasks in a virtual environment. The results of the experiments showed that stimulating musical vibration enhanced the music-listening experience, and that the proposed method is able to provide sufficient information to guide the users: accuracy in identifying directions was about 20 , participants reached the target in all navigation tasks, and in about 80% of all trials participants reached the target using the shortest route. Furthermore, the proposed method succeeded in conveying distance information, and Hapbeat can be combined with conventional navigation methods without interfering with music listening.
我们提出了一种方法，使用 Hapbeat（一种项链式触觉设备）在用户颈部两侧，根据目标的方向和距离，刺激由音乐信号产生并同步的音乐振动。我们进行了三项实验，以确认该方法既可以实现触觉导航，又可以增强音乐聆听体验。实验 1 包括进行问卷调查，以检验刺激音乐振动的效果。实验 2 评估了用户使用所提出的方法调整方向以对准目标的准确性（度）。实验 3 通过在虚拟环境中执行导航任务，检验了四种不同导航方法的能力。实验结果表明，刺激音乐振动增强了音乐聆听体验，所提出的方法能够提供足够的信息来引导用户：方向识别的准确性约为 20 度，参与者在所有导航任务中都能到达目标，在约 80%的试验中，参与者使用最短路线到达目标。此外，所提出的方法成功传达了距离信息，并且 Hapbeat 可以与传统导航方法结合使用，而不会干扰音乐聆听。
