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Results for “Speech Intelligibility”

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At least 289 records · Page 16Linked to original sources
PubMed1979

Performance of children aged 9 to 17 years on a test of speech intelligibility in noise using sentence material with controlled word predictability.

Performance of children aged 9 to 17 years on the SPIN test (Speech Perception in Noise) is described. The 11- and 13-year-olds performed significantly poorer than 15- and 17-year-olds, and this difference occurred primarily for high-predictability sentences presented at a O-dB signal-to-babble ratio. Performance of nine-year-olds was significantly poorer than performance of 11-year-olds. Possible reasons for these differences are discussed.

Adolescent↗
PubMed1997

Speech intelligibility as a function of the number of channels of stimulation for normal-hearing listeners and patients with cochlear implants.

OBJECTIVE: One goal was to determine for normal-hearing listeners the number of channels of stimulation necessary to achieve a high level of speech understanding. The second goal was to determine whether patients with a six-channel cochlear implant could achieve the same level of speech understanding as normal-hearing subjects listening to speech processed through six channels. METHODS: Speech signals were processed, for normal-hearing listeners, either in the manner of cochlear-implant processors with 2-9 fixed channels, or in the manner of a processor which picked, on each update cycle, 6 of 16 channels. RESULTS: For the most difficult test material eight fixed channels were necessary to achieve the level of performance achieved with the "n of m" processor. Some cochlear implant patients with a six-channel continuous interleaved sampling processor achieved the same level of performance as normal-hearing subjects listening to speech via six channels. CONCLUSIONS: A signal processor for cochlear implants with eight channels should produce the same level of intelligibility as a processor with many more channels. Processors using continuous interleaved sampling technology can provide a signal which results in the same level of speech understanding as normal, acoustic stimulation.

Cochlear Implantation↗
PubMedDate not supplied

Internal circuit noise of hearing aids and speech intelligibility.

The circuit noise generated internally by various components of a hearing aid is influenced mostly by circuit gain and frequency response. The measurement of this variable and its effect, if any, on the listener's ability to unders-and monosyllabic words through a hearing-aid system was investigated. The overall circuit noise of 10 behind-the-ear hearing aids of different brands with comparable gain and frequency response was measured. Based on these measurements, a low-noise and a high-noise hearing aid were selected as the test aids. The internal circuit noise of each test aid was then measured automatically by utilizing a 1/3-octave-band tracking filter. Monosyllabic words were recorded through the test aids at two gain settings. The prerecorded test tapes were presented to 32 normal-hearing listeners. Findings indicate that different amounts of circuit noise generated internally by a hearing aid do exist among various aids. However, the noise generated by the hearing aids used in this study does not affect significantly the intelligibility of monosyllabic words.

Hearing Aids↗