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  Automatic word count estimation from daylong child-centered recordings in various language environments using language-independent syllabification of speech

Räsänen, O., Seshadri, S., Karadayi, J., Riebling, E., Bunce, J., Cristia, A., et al. (2019). Automatic word count estimation from daylong child-centered recordings in various language environments using language-independent syllabification of speech. Speech Communication, 113, 63-80. doi:10.1016/j.specom.2019.08.005.

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Rasanen_etal_2019_Automatic word count....pdf (Verlagsversion), 3MB
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2019
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2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license

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 Urheber:
Räsänen, Okko 1, 2, Autor
Seshadri, Shreyas2, Autor
Karadayi, Julien3, Autor
Riebling, Eric4, Autor
Bunce, John5, Autor
Cristia, Alejandrina3, Autor
Metze, Florian4, Autor
Casillas, Marisa6, Autor           
Rosemberg, Celia7, Autor
Bergelson, Elika8, Autor
Soderstrom, Melanie5, Autor
Affiliations:
1Unit of Computing Sciences, Tampere University, Tampere, Finland, ou_persistent22              
2Department of Signal Processing and Acoustics, Aalto University, Aalto, Finland, ou_persistent22              
3Laboratoire de Sciences Cognitives et Psycholinguistique, Dept d'Etudes Cognitives, ENS, PSL University, EHESS, CNRS, Paris, France, ou_persistent22              
4Language Technologies Institute, Carnegie Mellon University, Pittsburgh, PA, USA, ou_persistent22              
5Department of Psychology, University of Manitoba, Manitoba, Canada, ou_persistent22              
6Language Development Department, MPI for Psycholinguistics, Max Planck Society, ou_2340691              
7Centro Interdisciplinario de Investigaciones en Psicología Matemática y Experimental, CONICET, ou_persistent22              
8Department of Psychology and Neuroscience, Duke University, Durham, NC, USA, ou_persistent22              

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 Zusammenfassung: Automatic word count estimation (WCE) from audio recordings can be used to quantify the amount of verbal communication in a recording environment. One key application of WCE is to measure language input heard by infants and toddlers in their natural environments, as captured by daylong recordings from microphones worn by the infants. Although WCE is nearly trivial for high-quality signals in high-resource languages, daylong recordings are substantially more challenging due to the unconstrained acoustic environments and the presence of near- and far-field speech. Moreover, many use cases of interest involve languages for which reliable ASR systems or even well-defined lexicons are not available. A good WCE system should also perform similarly for low- and high-resource languages in order to enable unbiased comparisons across different cultures and environments. Unfortunately, the current state-of-the-art solution, the LENA system, is based on proprietary software and has only been optimized for American English, limiting its applicability. In this paper, we build on existing work on WCE and present the steps we have taken towards a freely available system for WCE that can be adapted to different languages or dialects with a limited amount of orthographically transcribed speech data. Our system is based on language-independent syllabification of speech, followed by a language-dependent mapping from syllable counts (and a number of other acoustic features) to the corresponding word count estimates. We evaluate our system on samples from daylong infant recordings from six different corpora consisting of several languages and socioeconomic environments, all manually annotated with the same protocol to allow direct comparison. We compare a number of alternative techniques for the two key components in our system: speech activity detection and automatic syllabification of speech. As a result, we show that our system can reach relatively consistent WCE accuracy across multiple corpora and languages (with some limitations). In addition, the system outperforms LENA on three of the four corpora consisting of different varieties of English. We also demonstrate how an automatic neural network-based syllabifier, when trained on multiple languages, generalizes well to novel languages beyond the training data, outperforming two previously proposed unsupervised syllabifiers as a feature extractor for WCE.

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Sprache(n): eng - English
 Datum: 2019-08-142019-12
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.specom.2019.08.005
 Art des Abschluß: -

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Titel: Speech Communication
  Andere : Speech Commun.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam, Netherlands : Elsevier
Seiten: - Band / Heft: 113 Artikelnummer: - Start- / Endseite: 63 - 80 Identifikator: ISSN: 0167-6393
CoNE: https://pure.mpg.de/cone/journals/resource/954925483662