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Production, perception and cognitive aspects in the speech and singing intersection

Grant number: 15/06283-0
Support type:Regular Research Grants
Duration: November 01, 2015 - April 30, 2018
Field of knowledge:Linguistics, Literature and Arts - Linguistics
Principal researcher:Beatriz Raposo de Medeiros
Grantee:Beatriz Raposo de Medeiros
Home Institution: Faculdade de Filosofia, Letras e Ciências Humanas (FFLCH). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Alexsandro Rodrigues Meireles ; João Paulo Serrasqueiro Robalo Cabral

Abstract

The issue raised in this project is that although we know how to intuitively distinguish between speech and singing, there are portions of each in which one perceives the coexistence of both and this suggests that there is a gradation, more than an abrupt change in the production of speech and other aspects of speech. The aim of this research project is to focus on some aspects of production and perception of speech and song in order to answer the first question originated by the proposed issue: (1) Are speech and singing completely different phenomena? Therefore, three studies are proposed. The first study will measure duration and fundamental frequency excerpts of the same spoken and sung text. The second study, using the excerpts of the first will be a perception test which aim is to designate the presented stimulus as speaking or singing, with at least two possible gradations between these two designations. The third study will run a neural network whose inputs will be duration and fundamental frequency (F0) extracted from the analyzed excerpts to check if the output establishes more or less categorical differences between singing and speech. The results of the neural network will be compared with those of the first two studies. From this it will be done-one discussion taking into account cognitive aspects of speech and song. Expected results are that speech can be distinct from singing in terms of no stability or stability of observed acoustic aspects. For example, considering the same time window, speech should present more variation of F0 than singing, and this is just one aspect to objectively differentiate the two sound categories. (AU)

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