Factors relating to the intelligibility of the speech of deaf children

This paper reviews a study of the speech intelligibility of deaf children to listeners with normal hearing.

Effects of simulated cataracts on speech intelligibility

Limited research is available on how well visual cues integrate with auditory cues to improve speech intelligibility in persons with visual impairments, such as cataracts. We investigated whether simulated cataracts interfered with participants’ ability to use visual cues to help disambiguate a spoken message in the presence of spoken background noise. We tested 21 young adults with normal visual acuity and hearing sensitivity. Speech intelligibility was tested under three conditions: auditory only with no visual input, auditory-visual with normal viewing, and auditory-visual with simulated cataracts. Central Institute for the Deaf (CID) Everyday Speech Sentences were spoken by a live talker, mimicking a pre-recorded audio track, in the presence of pre-recorded four-person background babble at a signal-to-noise ratio (SNR) of -13 dB. The talker was masked to the experimental conditions to control for experimenter bias. Relative to the normal vision condition, speech intelligibility was significantly poorer, [t (20) = 4.17, p < .01, Cohen’s d =1.0], in the simulated cataract condition. These results suggest that cataracts can interfere with speech perception, which may occur through a reduction in visual cues, less effective integration or a combination of the two effects. These novel findings contribute to our understanding of the association between two common sensory problems in adults: reduced contrast sensitivity associated with cataracts and reduced face-to-face communication in noise.

Efficacy of the Speech Intelligibility Index as an intervention tool with pediatric cancer patients

This study evaluates the Speech Intelligibility Index (SII) as a tool to describe hearing loss and predict when hearing aids would be appropriate for pediatric oncology patients who have received or are currently receiving cisplatin. The efficacy of the SII is compared to the Brock grade which is commonly used for patients with ototoxic hearing loss secondary to cisplatin treatment. The SII is a discrete measure that precisely reflects the patient’s functional hearing status and is highly correlated with the need for audiologic intervention.

Speech intelligibility in noise-induced hearing loss: effects of high-frequency compensation

This dissertation examines the frequency response that results in the maximum level of speech intelligibility for persons with noise-induced hearing loss.

Effect of amplification bandwidth on intelligibility of several different speech samples for a listener with sensorineural hearing loss

This paper examines the effect of amplification bandwidth on speech intelligibility using multiple speech samples.

Intelligibility of one's own speech relative to the speech of others

This paper reviews a speech intelligibility experiment using the same subjects as both talkers and listeners.

The intelligibility of different kinds of test material used in speech audiometry

This paper discusses several tests used to measure speech intelligibility and speech discrimination.

The intelligibility of cleft palate speech with and without dental prosthesis

This paper discusses a study to investigate the possibility of quantifying and analyzing the speech of cleft palate subjects.

The intelligibility of speech through phonetic transcription

This paper analyzes the phonetic accuracy of both hearing-impaired and normal-hearing individuals’ speech production.

How the listener's experience influences the rating of the intelligibility of hearing-impaired children's speech

This paper discusses the importance of listener experience as a factor when developing intelligibility measures for hearing impaired children.

The relation between intelligibility and the acoustic characteristics of deaf speech: An acoustic analysis of the vowels /i/ and /aw/, and nasals

This paper discusses a study that examined acoustic measures and the relationship to speech intelligibility of children with cochlear implants.

Predicting for the hearing impaired the intelligibility of different kinds of speech materials

This paper discusses a study to define the function relating the scores for hearing impaired listeners on four different speech materials.

Validation of a speech intelligibility measure for profoundly deaf children

This paper reviews a study to validate a speech intelligibility measure for profoundly deaf children.

Effect of amplification bandwidth on speech intelligibility

This paper was a study to examine the effect of bandlimiting on speech intelligibility.