Reliability of the Language Environment Analysis Recording System in Analyzing French–English Bilingual Speech

Adriel John Orena · Krista Byers‐Heinlein · Linda Polka

38 citations0/0 files storedJournal of Speech Language and Hearing Research

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Language Development and Disorders Phonetics and Phonology Research Hearing Impairment and Communication

Abstract

Purpose This study examined the utility of the Language ENvironment Analysis (LENA) recording system for investigating the language input to bilingual infants. Method Twenty-one French-English bilingual families with a 10-month-old infant participated in this study. Using the LENA recording system, each family contributed 3 full days of recordings within a 1-month period. A portion of these recordings (945 minutes) were manually transcribed, and the word counts from these transcriptions were compared against the LENA-generated adult word counts. Results Data analyses reveal that the LENA algorithms were reliable in counting words in both Canadian English and Canadian French, even when both languages are present in the same recording. While the LENA system tended to underestimate the amount of speech in the recordings, there was a strong correlation between the LENA-generated and human-transcribed adult word counts for each language. Importantly, this relationship holds when accounting for different-gendered and different-accented speech. Conclusions The LENA recording system is a reliable tool for estimating word counts, even for bilingual input. Special considerations and limitations for using the LENA recording system in a bilingual population are discussed. These results open up possibilities for investigating caregiver talk to bilingual infants in more detail.

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References

1996Meaningful differences in the everyday experience of young American children 2019Elements of General Phonetics 2013Talking to Children Matters 2018Beyond the 30-Million-Word Gap: Children’s Conversational Exposure Is Associated With Language-Related Brain Function 2011The relationship between bilingual exposure and vocabulary development 2014Look who's talking: speech style and social context in language input to infants are linked to concurrent and future speech development 2010Automated vocal analysis of naturalistic recordings from children with autism, language delay, and typical development 2011A cross-language perspective on speech information rate

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2021Socioeconomic status correlates with measures of Language Environment Analysis (LENA) system: a meta-analysis 2022Defining bilingualism in infancy and toddlerhood: A scoping review 2021How Chatty Are Daddies? An Exploratory Study of Infants' Language Environments 2019Monolingual and bilingual infants’ word segmentation abilities in an inter‐mixed dual‐language task

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