Audio-haptic physically-based simulation of walking on different grounds

Turchet, Luca; Nordahl, Rolf; Serafin, Stefania; Berrezag, Amir; Dimitrov, Smilen; Hayward, Vincent

doi:10.1109/mmsp.2010.5662031

Cited by 32 publications

(33 citation statements)

References 11 publications

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“…The virtual elevator was simulated using a multimodal architecture originally developed for simulating walking-based interactions through visual, auditory and haptic stimuli [11].…”

Section: Experiments Setup and Stimulimentioning

confidence: 99%

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Vertical illusory self-motion through haptic stimulation of the feet

Nordahl

Nilsson

Turchet

et al. 2012

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments

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Circular and linear self-motion illusions induced through visual and auditory stimuli have been studied rather extensively. While the ability of haptic stimuli to augment such illusions has been investigated, the self-motion illusions which primarily are induced by stimulation of the haptic modality remain relatively unexplored.In this paper, we present an experiment performed with the intention of investigating whether it is possible to use haptic stimulation of the main supporting areas of the feet to induce vertical illusory self-motion on behalf of unrestrained participants during exposure to a virtual environment depicting an elevator. The experiment was based on a within-subjects design where all participants were subjected to identical visual and auditory stimuli. The participants experienced a total of four conditions. For three of the conditions a different signal was used to generate the haptic feedback while the final condition included no haptic feedback. Analysis of self-reports were used to assess the participants' experience of illusory self-motion. The results indicate that such illusions are indeed possible. Significant differences were found between the condition including no haptic feedback and the remaining three conditions.

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“…The virtual elevator was simulated using a multimodal architecture originally developed for simulating walking-based interactions through visual, auditory and haptic stimuli [11].…”

Section: Experiments Setup and Stimulimentioning

confidence: 99%

“…The position and orientation of the participants head is tracked by means of a 16 cameras Optitrack motion capture system (Naturalpoint) and the forces exerted during foot-floor interactions are registered by a pair of customized sandals augmented with actuators and pressure sensors [11]. Two FSR pressure sensors (I.E.E.…”

Section: Simulation Hardwarementioning

confidence: 99%

Vertical illusory self-motion through haptic stimulation of the feet

Nordahl

Nilsson

Turchet

et al. 2012

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments

Self Cite

View full text Add to dashboard Cite

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“…Physically-based sound synthesis is an independent topic and a number of models were already presented, for example in [Avanzini et al 2005] where a model has been presented which has previously been used to create synthetic step sounds [Turchet et al 2010]. …”

Section: Related Workmentioning

confidence: 99%

“…In [Turchet et al 2010], the viability of auditory step feedback systems using shoes equipped with force sensitive resistors has been demonstrated and in [Nordahl et al 2011], a system based on an array of microphones located on the floor around the user was used.…”

Section: Related Workmentioning

confidence: 99%

Robust prediction of auditory step feedback for forward walking

Zank

Nescher

Kunz

2013

Proceedings of the 19th ACM Symposium on Virtual Reality Software and Technology

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Virtual reality systems supporting real walking as a navigation interface usually lack auditory step feedback, although this could give additional information to the user e.g. about the ground he is walking on. In order to add matching auditory step feedback to virtual environments, we propose a calibration-free and easy to use system that can predict the occurrence time of stepping sounds based on human gait data.Our system is based on the timing of reliably occurring characteristic events in the gait cycle which are detected using foot mounted accelerometers and gyroscopes. This approach not only allows us to detect but to predict the time of an upcoming step sound in realtime. Based on data gathered in an experiment, we compare different suitable events that allow a tradeoff between the maximum precision of the prediction and the maximum time by which the sound can be predicted.

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“…The mechanical responses resulting from such actions, often include oscillatory components that can be modeled through deterministic or stochastic techniques, in combination with a separable, low frequency component [6,7]. While the reproduction of the oscillatory components alone via hard surfaces may be sufficient to determine vivid perceptual outcomes [8,9], another haptic simulation approach, proposed here, involves the artificial reproduction of the sensory experiences resulting from squeezing actions performed via a deformable haptic interface.…”

Section: Conceptmentioning

confidence: 99%