Measuring the effects of reverberation and noise on sentence intelligibility for hearing-impaired listeners

Autor: Erwin L. J. George, S. Theo Goverts, Joost M. Festen, Tammo Houtgast
Přispěvatelé: Otolaryngology / Head & Neck Surgery, EMGO - Quality of care
Rok vydání: 2010
Předmět:
Zdroj: George, E L J, Goverts, S T, Festen, J M & Houtgast, T 2010, ' Measuring the effects of reverberation and noise on sentence intelligibility for hearing-impaired listeners ', Journal of Speech, Language and Hearing Research, vol. 53, no. 6, pp. 1429-1439 . https://doi.org/10.1044/1092-4388(2010/09-0197)
Journal of Speech, Language and Hearing Research, 53(6), 1429-1439. American Speech-Language-Hearing Association (ASHA)
ISSN: 1092-4388
DOI: 10.1044/1092-4388(2010/09-0197)
Popis: Purpose The Speech Transmission Index (STI; Houtgast, Steeneken, & Plomp, 1980; Steeneken & Houtgast, 1980) is commonly used to quantify the adverse effects of reverberation and stationary noise on speech intelligibility for normal-hearing listeners. Duquesnoy and Plomp (1980) showed that the STI can be applied for presbycusic listeners, relating speech reception thresholds (SRTs) in various reverberant conditions to a fixed, subject-dependent STI value. The current study aims at extending their results to a wider range of hearing-impaired listeners. Method A reverberant analogue of the SRT is presented—the speech reception reverberation threshold (SRRT)—which determines the amount of reverberation that a listener can sustain to understand 50% of the presented sentences. SRTs are performed and evaluated in terms of STI for 5 normal-hearing participants and 36 randomly selected hearing-impaired participants. Results Results show that differences in STI between reverberant and noisy conditions are only small, equivalent to a change in speech-to-noise ratio < 1.3 dB. Conclusion The STI appears to be a convenient, single number to quantify speech reception of hearing-impaired listeners in noise and/or reverberation, regardless of the nature of the hearing loss. In future research, the SRRT may be applied to further investigate the supposed importance of cognitive processing in reverberant listening conditions.
Databáze: OpenAIRE