Comparing the Perceived Intensity of Vibrotacitle Cues Scaled Based on Inherent Dynamic Range

IF 2.4 3区 计算机科学 Q2 COMPUTER SCIENCE, CYBERNETICS
Daziyah H. Sullivan;Elyse D. Z. Chase;Marcia K. O'Malley
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引用次数: 0

Abstract

Wearable devices increasingly incorporate vibrotactile feedback notifications to users, which are limited by the frequency-dependent response characteristics of the low-cost actuators that they employ. To increase the range and type of information that can be conveyed to users via vibration feedback, it is crucial to understand user perception of vibration cue intensity across the narrow range of frequencies that these actuators operate. In this paper, we quantify user perception of vibration cues conveyed via a linear resonant actuator embedded in a bracelet interface using two psychophysical experiments. We also experimentally determine the frequency response characteristics of the wearable device. We then compare user perceived intensity of vibration cues delivered by the bracelet when the cues undergo frequency-specific amplitude modulation based on user perception compared to modulation based on the experimental or manufacturer-reported characterization of the actuator dynamic response. For applications in which designers rely on user perception of cue amplitudes across frequencies to be equivalent, it is recommended that a perceptual calibration experiment be conducted to determine appropriate modulation factors. For applications in which only relative perceived amplitudes are important, basing amplitude modulation factors on manufacturer data or experimentally determined dynamic response characteristics of the wearable device should be sufficient.
比较根据固有动态范围缩放的 Vibrotacitle 线索的感知强度
可穿戴设备越来越多地采用振动触觉反馈来通知用户,但这些设备所采用的低成本致动器的频率响应特性使其受到限制。为了扩大通过振动反馈向用户传递信息的范围和类型,了解用户在这些致动器工作的狭窄频率范围内对振动提示强度的感知至关重要。在本文中,我们通过两个心理物理实验,量化了用户对通过嵌入手镯界面的线性谐振致动器传递的振动提示的感知。我们还通过实验确定了可穿戴设备的频率响应特性。然后,我们比较了用户对手环传递的振动提示的感知强度,即根据用户感知对提示进行特定频率振幅调制,与根据实验或制造商报告的致动器动态响应特性进行调制。对于设计者依赖用户对不同频率的提示振幅的感知为等效的应用,建议进行感知校准实验,以确定适当的调制因子。对于只重视相对感知振幅的应用,根据制造商的数据或通过实验确定的可穿戴设备动态响应特性来确定振幅调制因子就足够了。
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来源期刊
IEEE Transactions on Haptics
IEEE Transactions on Haptics COMPUTER SCIENCE, CYBERNETICS-
CiteScore
5.90
自引率
13.80%
发文量
109
审稿时长
>12 weeks
期刊介绍: IEEE Transactions on Haptics (ToH) is a scholarly archival journal that addresses the science, technology, and applications associated with information acquisition and object manipulation through touch. Haptic interactions relevant to this journal include all aspects of manual exploration and manipulation of objects by humans, machines and interactions between the two, performed in real, virtual, teleoperated or networked environments. Research areas of relevance to this publication include, but are not limited to, the following topics: Human haptic and multi-sensory perception and action, Aspects of motor control that explicitly pertain to human haptics, Haptic interactions via passive or active tools and machines, Devices that sense, enable, or create haptic interactions locally or at a distance, Haptic rendering and its association with graphic and auditory rendering in virtual reality, Algorithms, controls, and dynamics of haptic devices, users, and interactions between the two, Human-machine performance and safety with haptic feedback, Haptics in the context of human-computer interactions, Systems and networks using haptic devices and interactions, including multi-modal feedback, Application of the above, for example in areas such as education, rehabilitation, medicine, computer-aided design, skills training, computer games, driver controls, simulation, and visualization.
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