Validation norms for speech discrimination scores of normal-hearing subjects in wide-band and in speech-spectrum noise at S/N 0 DB.

K. J. Doyle, R. R. Rupp

Research output: Contribution to journalArticle

Abstract

W-22 lists were given at 40 db re SRT with a Maico MA-24B audiometer and attachments to 20 normal-hearing adults in quiet and in combination with either wide-band or speech-spectrum noise at S/N = 0, monaurally by earphone and binaurally by loudspeaker(s). No systematic L-R differences were observed. DS in quiet by any condition was at or near 100%. Mean DS in noise by monaural earphone was 79.80 +/- 13.3 for wide-band noise and 54.7 +/- 12.7 for speech-spectrum noise. When speech and noise were from two different loudspeakers placed +/- 45 degrees from midline, DS was 90.8 +/- 9.5 for wide-band noise and 88.1 +/- 7.8 for speech-spectrum noise. When both speech and noise came from the same loudspeaker, DS was 79.10 +/- 10.3 for wide-band noise and 57.0 +/- 21.8 for speech-spectrum noise. These values are proposed as provisional norms for clinical facilities using these conditions and employing similar instrumentation.

Original languageEnglish (US)
Pages (from-to)269-273
Number of pages5
JournalThe Journal of auditory research
Volume17
Issue number4
StatePublished - Oct 1977
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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