TY - JOUR
T1 - Accuracy of the Language Environment Analyses (LENATM) system for estimating child and adult speech in laboratory settings
AU - Marchman, Virginia A.
AU - Weisleder, Adriana
AU - Hurtado, Nereyda
AU - Fernald, Anne
N1 - Funding Information:
We are grateful to the children and parents who participated in this research. Special thanks to Mónica Munévar, Janet Bang, Ruby Roldan, Karina González, Araceli Arroyo, Viviana Limón, Lucía Martínez, Veronica Goei, and the staff of the Language Learning Lab at Stanford University and Grail Family Services. This work was supported by grants from the National Institutes of Health (HD092343), the Schusterman Foundation, the Lucile Packard Foundation, and the W.K. Kellogg Foundation to Anne Fernald.
Publisher Copyright:
Copyright © The Author(s), 2020. Published by Cambridge University Press.
PY - 2021/5
Y1 - 2021/5
N2 - Laboratory observations are a mainstay of language development research, but transcription is costly. We test whether speech recognition technology originally designed for day-long contexts can be usefully applied to this use-case. We compared automated adult word and child vocalization counts from Language Environment Analysis (LENATM) to those of transcribers in 20-minute play sessions with Spanish-speaking dyads (n = 104) at 1;7 and 2;2. For adult words, results indicated moderate associations but large absolute differences. Associations for child vocalizations were weaker with larger absolute discrepancies. LENA has moderate potential to ease the burden of transcription in some research and clinical applications.
AB - Laboratory observations are a mainstay of language development research, but transcription is costly. We test whether speech recognition technology originally designed for day-long contexts can be usefully applied to this use-case. We compared automated adult word and child vocalization counts from Language Environment Analysis (LENATM) to those of transcribers in 20-minute play sessions with Spanish-speaking dyads (n = 104) at 1;7 and 2;2. For adult words, results indicated moderate associations but large absolute differences. Associations for child vocalizations were weaker with larger absolute discrepancies. LENA has moderate potential to ease the burden of transcription in some research and clinical applications.
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U2 - 10.1017/S0305000920000380
DO - 10.1017/S0305000920000380
M3 - Article
C2 - 32690113
AN - SCOPUS:85088577805
SN - 0305-0009
VL - 48
SP - 605
EP - 620
JO - Journal of Child Language
JF - Journal of Child Language
IS - 3
ER -