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Related Experiment Video

Updated: Nov 4, 2025

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

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Tactile Echoes: Multisensory Augmented Reality for the Hand.

Anzu Kawazoe, Gregory Reardon, Erin Woo

IEEE Transactions on Haptics

|May 26, 2021

Summary

Tactile Echoes is a new finger-wearable system that enhances touch interactions with physical objects by processing vibrations to create responsive tactile and auditory feedback, making virtual and augmented reality experiences more engaging.

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Area of Science:

Human-Computer Interaction
Haptics
Wearable Technology

Background:

Free-hand touch interactions are crucial for human activities.
Current technologies for augmenting real-world touch interactions are limited.
Computational augmentation of tactile experiences requires novel approaches.

Purpose of the Study:

To introduce Tactile Echoes, a finger-wearable system for augmenting touch interactions with physical objects.
To explore the real-time processing of touch-elicited vibrations for enhanced tactile and auditory feedback.
To investigate the perceptual qualities and applications of these augmented tactile experiences.

Main Methods:

Developed a finger-wearable system (Tactile Echoes) to capture and process touch-elicited vibrations.
Utilized a parametric signal processing network to generate responsive tactile and auditory feedback.
Employed computational and spatial tracking for selective assignment of effects to objects/actions.
Conducted perceptual experiments using multidimensional scaling to understand user perception.

Main Results:

Tactile Echoes generate distinct feedback (discrete echoes for taps, sustained for slides) based on interaction type.
A variety of multisensory effects can be designed using ten processing parameters.
Perceptual experiments revealed low-dimensional, semantically grounded descriptions of Tactile Echoes.
User studies demonstrated increased responsiveness and engagement in virtual and augmented reality applications.

Conclusions:

Tactile Echoes effectively augment touch interactions with expressive multisensory feedback.
The system enhances user engagement and responsiveness in virtual and augmented reality.
This technology offers a novel method for computationally enriching tactile experiences with physical objects.