In this paper, we present an automatic child-directed speech detection system to be used in the study of child language development. Child-directed speech (CDS) is speech that is directed by caregivers towards infants. It is not uncommon for corpora used in child language development studies to have a combination of CDS and non-CDS. As the size of the corpora used in these studies grow, manual ...

this study is an attempt to answer three questions: first, whether there is a difference between the grammatical competence de- velopment of a group of children aged 2;6 vs. a group of children aged 3;6. second, whether there is a relationship between the children’s age and their mlu on the one hand and their speech and the caretakers’ speech on the other. third, whether or not the normal limit...

This research investigated the role of child-directed speech in the acquisition of vowel systems in a cross-linguistic perspective. In order to determine if vocalic systems are expanded in child-directed speech and if this extension varies crosslinguistically, child-directed speech (CDS) was compared to adult-directed speech (ADS) in three rhythmically different languages: French, English and J...

Child-directed speech (CDS) is a talking style adopted by caregivers when they talk to toddlers (Snow, 1995). We consider the role of distributional semantic features of CDS in language acquisition. We view semantic structure as a manifold on which words lie. We compare the semantic structure of verbs in CDS to the semantic structure of child speech (CS) and adult-directed speech (ADS) by measu...

The present study compares prosodic features of child-directed speech (CDS) and foreigner-directed speech (FDS), to examine whether FDS is a derivative of CDS as suggested in sociolinguistic studies. Twelve female speakers completed a simple referential communication task addressed to an imaginary adult, an imaginary foreigner, and an imaginary child. The results showed that, compared to the ad...

In earlier work, we have shown that articulation rate in Swedish child-directed speech (CDS) increases as a function of the age of the child, even when utterance length and differences in articulation rate between subjects are controlled for. In this paper we show on utterance level in spontaneous Swedish speech that i) for the youngest children, articulation rate in CDS is lower than in adult-...

ABSTRACTAcoustic-phonetic exaggeration of infant-directed speech (IDS) is well documented, but few studies address whether these features are modified with a child's age. Mandarin-speaking mothers were recorded while addressing an adult and their child at two ages (0 ; 7-1 ; 0 and 5 ; 0) to examine the acoustic-phonetic differences between IDS and child-directed speech (CDS). CDS exhibits an ex...

In earlier work, we have shown that articulation rate in Swedish child-directed speech (CDS) increases as a function of the age of the child, even when utterance length and differences in articulation rate between subjects are controlled for. In this paper we show on utterance level in spontaneous Swedish speech that i) for the youngest children, articulation rate in CDS is lower than in adult-...

This paper presents a localist multimodal neural network that uses Hebbian learning to acquire one-word child language from child directed speech (CDS) comprising multiword utterances and queries in addition to one-word utterances. The model implements cross-situational learning between linguistic words used in child directed speech, the accompanying perceptual entities, conceptual relations an...

Research on the facial expression of emotion distinguishes between correlates of posed vs. spontaneous emotion expression. Similar research in the vocal domain is lacking. In this study, we compare changes in a range of vocal parameters between posed vs. spontaneous adult-directed (AD) and child–directed (CD) speech. CDS is a highly affectively charged speech register which lends itself well to...