Tactual display of consonant voicing as a supplement to lipreading
- 1 August 2005
- journal article
- research article
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 118 (2), 1003-1015
- https://doi.org/10.1121/1.1945787
Abstract
This research is concerned with the development and evaluation of a tactual display of consonant voicing to supplement the information available through lipreading for persons with profound hearing impairment. The voicing cue selected is based on the envelope onset asynchrony derived from two different filtered bands (a low-pass band and a high-pass band) of speech. The amplitude envelope of each of the two bands was used to modulate a different carrier frequency which in turn was delivered to one of the two fingers of a tactual stimulating device. Perceptual evaluations of speech reception through this tactual display included the pairwise discrimination of consonants contrasting voicing and identification of a set of 16 consonants under conditions of the tactual cue alone (T), lipreading alone (L), and the combined condition . The tactual display was highly effective for discriminating voicing at the segmental level and provided a substantial benefit to lipreading on the consonant-identification task. No such benefits of the tactual cue were observed, however, for lipreading of words in sentences due perhaps to difficulties in integrating the tactual and visual cues and to insufficient training on the more difficult task of connected-speech reception.
This publication has 42 references indexed in Scilit:
- Comparison of Two Multichannel Tactile Devices as Supplements to Speechreading in a Postlingually Deafened AdultEar & Hearing, 1995
- Vibrotactile and electrotactile perception of time-varying pulse trainsThe Journal of the Acoustical Society of America, 1994
- Role of a Multichannel Electrotactile Speech Processor in a Cochlear Implant Program for Profoundly Hearing-impaired Adults*Ear & Hearing, 1991
- Acoustic cues for consonant identification by patients who use the Ineraid cochlear implantThe Journal of the Acoustical Society of America, 1990
- Speechreading sentences with single-channel vibrotactile presentation of voice fundamental frequencyThe Journal of the Acoustical Society of America, 1990
- Tactile Presentation of Voice Fundamental Frequency as an Aid to the Speechreading of SentencesEar & Hearing, 1988
- Tactile Presentation of Voice Fundamental Frequency as an Aid to the Perception of Speech Pattern ContrastsEar & Hearing, 1988
- The Transmission of Prosodic Information Via an Electrotactile Speechreading AidEar & Hearing, 1986
- Vibrotactile masking: Effects of oneand two-site stimulationPerception & Psychophysics, 1983
- An Analysis of Perceptual Confusions Among Some English ConsonantsThe Journal of the Acoustical Society of America, 1955