The Korean Speech Recognition Sentences: A Large Corpus for Evaluating Semantic Context and Language Experience in Speech Perception.
Jieun Song, Byungjun Kim, Minjeong Kim and 1 others
PMID 37672785WHAT IT FOUND
Korean sentences with strong semantic context were understood more easily than neutral ones by both native and non-native speakers.
Late learners benefited from context just as much as natives, but struggled more as background noise increased.
Key findings
01Predictable sentences were significantly more intelligible than neutral sentences for both native and non-native listeners.
02Non-native listeners performed significantly worse than native listeners, especially as noise levels increased.
03The effect of semantic predictability was similar for native and non-native groups, indicating late learners can use context cues.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study focused on adult late learners of Korean with limited residence time (<2 years), so results may not generalize to early bilinguals or long-term residents. The corpus is currently validated only for adults; further studies are needed to establish validity for children or hearing-impaired populations. Non-native listeners showed greater variability in performance, which may reflect heterogeneous language proficiency levels not fully captured by self-report.
Declared interests
Funded by the Economic and Social Research Council of the United Kingdom, the National Research Foundation of Korea, and a KAIST-KT joint research project funded by KT.
The easy way to misread this
Do not assume that semantic context cues compensate for hearing loss or specific language disorders based on this study; the participants were healthy adults with normal hearing, and the findings apply to typical speech perception in noise, not clinical populations.