Hush now: Baby talk has common features across languages and societies
People sing and talk to young infants in a similar fashion across a range of diverse languages, locations, and societies, a machine learning and citizen science study has found.
Applying linear regression LASSO machine learning models – one for speech and one for song – the researchers were able to classify whether recordings were infant or adult-directed on the basis of their acoustic features. They found that acoustic features consistently differed between infant and adult-directed recordings. In both groups, infant-directed recordings had purer timbres, songs were more subdued, and speech was typically a higher pitch.
Belgique Dernières Nouvelles, Belgique Actualités
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