A nonstationary speech production model based on armax analysis

ResumoEste artigo analisa o processo de modernização da produção brasileira de coco. O cultivo desse fruto vem sendo significativamente modificado nestas últimas décadas, quando se observa a passagem de um modelo de produção baseado no extrativismo para um modelo inserido em um contexto representado pelo advento da agricultura científica. Isso significa que a produção do fruto deixou de depender quase que exclusivamente de condicionantes naturais e passou a depender sobremaneira de insumos e implementos difundidos com a modernização agrícola, responsáveis por modificar as formas pelas quais o coco vinha sendo produzido até então, dotando-o de uma racionalidade anteriormente não observada.Palavras-chave: Produção de coco; Modernização da agricultura; Reestruturação produtiva da agricultura. AbstractThis article studies the process of modernization of Brazilian coconut production. The production of this fruit has been modified significantly in the last decades. In other words, the production model based on extraction has become into a scientific agriculture model. Thus, the fruit production is no longer dependent on natural factors and came to greatly depend on inputs and implements utilized with agricultural modernization, responsible for modifying the ways in which the coconut had been produced so far, giving it a rationality not previously observed.Keywords: Coconut production; Agricultural modernization; Productive restructuring of agriculture. Résumé Cet article analyse le processus de modernisation de la production brésilienne de la noix de coco. La culture de ce fruit a été modifiée de façon significative tout au long des dernières décennies, lorsque l'on observe le passage d'un modèle de production basé sur l'extractivisme vers un modèle inséré dans un contexte représenté par l'agriculture scientifique. Cela signifie que la production de ce fruit ne dépend presque plus de conditions naturelles et est venue à dépendre grandement sur les intrants et outils apparus après la modernisation agricole, responsables des changements considérables de la manière dont la noix de coco avait été produite jusqu´à nos jours. Mots-clés: Production de la noix de coco; Modernisation de l'agriculture; Restructuration productive de l'agriculture.

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A speech analysis-synthesis-editing system based on the ARX speech production model.

Journal of the Acoustical Society of Japan (E) ◽

10.1250/ast.19.223 ◽

1998 ◽

Vol 19 (3) ◽

pp. 223-230 ◽

Cited By ~ 1

Author(s):

Weizhong Zhu ◽

Hideki Kasuya

Keyword(s):

Speech Production ◽

Speech Analysis ◽

Production Model

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Dynamic features of vocal folds based on speech production model for detection of stressed speech

2016 International Conference on Progress in Informatics and Computing (PIC) ◽

10.1109/pic.2016.7949508 ◽

2016 ◽

Cited By ~ 1

Author(s):

Xiao Yao ◽

Bohan Chen ◽

Hirotoshi Yoshimura

Keyword(s):

Speech Production ◽

Vocal Folds ◽

Production Model ◽

Dynamic Features

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A novel method to estimate voice source and formant parameters based on an ARX speech production model

The Journal of the Acoustical Society of America ◽

10.1121/1.4777740 ◽

2001 ◽

Vol 110 (5) ◽

pp. 2775-2775

Author(s):

Takahiro Ohtsuka ◽

Hideki Kasuya

Keyword(s):

Speech Production ◽

Production Model ◽

Voice Source ◽

Novel Method

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Explaining sonority projection effects

Phonology ◽

10.1017/s0952675711000145 ◽

2011 ◽

Vol 28 (2) ◽

pp. 197-234 ◽

Cited By ~ 53

Author(s):

Robert Daland ◽

Bruce Hayes ◽

James White ◽

Marc Garellek ◽

Andrea Davis ◽

...

Keyword(s):

Speech Perception ◽

Speech Production ◽

Computational Models ◽

Lexical Statistics ◽

Model Based ◽

Onset Clusters

AbstractThe term sonority projection refers to behavioural distinctions speakers make between unattested phonological sequences on the basis of sonority. For example, among onset clusters, the well-formedness relation [bn]>[lb] is observed in speech perception, speech production and non-word acceptability (Davidson 2006, 2007, Berent et al.2007, Albright, ms). We begin by replicating the sonority projection effects in a non-word acceptability study. Then we evaluate the extent to which sonority projection is predicted by existing computational models of phonotactics (Coleman & Pierrehumbert 1997, Hayes & Wilson 2008, inter alia). We show that a model based only on lexical statistics can explain sonority projection in English without a pre-existing sonority sequencing principle. To do this, a model must possess (i) a featural system supporting sonority-based generalisations, and (ii) a context representation including syllabification or equivalent information.

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