Comparison of calculated, measured and self-assessed intelligibility of speech in noise for hearing-aid users

Autor: Mia Karlsson, Björn Israelsson, Anders Ringdahl, Lennart Magnusson
Rok vydání: 2001
Předmět:
Zdroj: Scandinavian Audiology. 30:160-171
ISSN: 0105-0397
Popis: The Speech Intelligibility Index (SII) was used along with paired-comparison judgements and speech recognition scores to compare the speech intelligibility provided by two hearing-aid frequency responses in two different background noises. The purpose was to validate an SII-based procedure. Test subjects were 26 hearing-aid users representing a wide range of hearing loss configurations. One hearing-aid setting was in close agreement with the NAL-R prescription, whereas the other setting was achieved by reducing the high-frequency gain by about 10 dB compared to NAL-R. There were good overall agreements between results of the three methods. Average speech recognition scores were about 4 percentage points higher for the NAL-R frequency response, which also was subjectively judged as significantly better in terms of speech intelligibility. The SII based procedure was found to be suitable for comparing hearing-aid characteristics within subjects.
Databáze: OpenAIRE