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Related Experiment Video

Updated: Jun 22, 2026

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
05:43

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

Published on: May 23, 2019

Controller design and consonantal contrast coding using a multi-finger tactual display.

Ali Israr1, Peter H Meckl, Charlotte M Reed

  • 1Haptic Interface Research Laboratory, Purdue University, West Lafayette, Indiana 47907-2035, USA. israr@rice.edu

The Journal of the Acoustical Society of America
|June 11, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a new controller for multi-finger tactual displays to improve speech communication. The controller effectively transmits consonantal features via tactile cues, enhancing human sensory perception.

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A Tactile Automated Passive-Finger Stimulator (TAPS)
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A Tactile Automated Passive-Finger Stimulator (TAPS)

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Related Experiment Videos

Last Updated: Jun 22, 2026

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
05:43

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

Published on: May 23, 2019

A Tactile Automated Passive-Finger Stimulator (TAPS)
19:44

A Tactile Automated Passive-Finger Stimulator (TAPS)

Published on: June 3, 2009

Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Sensory Neuroscience

Background:

  • Speech communication relies on auditory cues, posing challenges for individuals with hearing impairments.
  • Tactual displays offer an alternative sensory channel for information transfer.
  • Designing effective tactual interfaces requires understanding both hardware capabilities and human sensory perception.

Purpose of the Study:

  • To design and evaluate a novel controller for a multi-finger tactual display system.
  • To improve speech communication by transmitting phonetic information through tactile stimuli.
  • To integrate human sensory characteristics into the controller design for enhanced performance.

Main Methods:

  • Developed a two-degree-of-freedom controller with feedback and prefilter components.
  • Integrated the controller into a speech communication system extracting spectral features.
  • Presented speech features as vibrational-motional waveforms to three digits on a user's hand.
  • Conducted a consonant contrasting experiment to assess tactile cue perception.

Main Results:

  • Participants could identify tactual cues for discriminating consonants in consonant-vowel-consonant (CVC) segments.
  • Average sensitivity indices for voicing, place, and manner features were 3.5, 2.7, and 3.4, respectively.
  • Consonantal features were successfully transmitted using the kinesthetic-cutaneous sensory system.

Conclusions:

  • The designed controller enables effective transmission of speech information via tactual displays.
  • Controller design considering human sensory characteristics enhances system performance.
  • Tactual displays show promise for augmenting or replacing auditory information in speech communication.