Reference sound pressure level for Korean speech audiometry.
OBJECTIVE
The purpose of this study was to examine the reference sound pressure level (RSPL) for Korean speech audiometry which was defined as the reference speech recognition threshold level (RSRTL) equivalent to 0 dB HL at the audiometer.


METHODS
Subjects consisted of 20 adults (40 ears) with normal hearing sensitivity.


METHODS
Puretone thresholds (PTs) were obtained in 2 dB steps at each octave band. The newly developed Korean bisyllabic words were used to establish the speech recognition thresholds (SRTs). The SRT was the level at 50% correct responses based on the psychometric function performed from -8 dB HL (12 dB SPL) up to the level at or above 90% correct responses in 2 dB steps. RESULTS CONCLUSIONS: The mean SRT was 23.44 dB SPL for sets comprised of 36 Korean bisyllabic words. Thus, the difference between English and Korean RSRTLs was about 3.44 dB. We recommend further study to recalculate the RSRTL for Korean speech audiometry with more subjects.
Division of Speech Pathology & Audiology, Hallym University, Chuncheon, Korea.
Heekyung
H
Han
Junghak
J
Lee
Soojin
S
Cho
Jinsook
J
Kim
Kyoungwon
K
Lee
Woon-do
WD
Choi
D000161:Acoustic Stimulation; D000328:Adult; D001301:Audiometry, Pure-Tone; D001302:Audiometry, Speech / Q000592:standards*; D001309:Auditory Threshold; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011312:Pressure; D011571:Psychoacoustics; D012015:Reference Standards; D056910:Republic of Korea; D013016:Sound; D013061:Speech Acoustics; D013065:Speech Intelligibility; D013067:Speech Perception; D013069:Speech Reception Threshold Test / Q000592:standards*; D055815:Young Adult