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Abstract(s)
Resumo - O simbolismo sonoro é um fenómeno com potencial para conhecermos mais sobre a interação neurológica entre estímulos sonoros e visuais. Foi realizado um inquérito com 117 participantes em que foi pedido aos mesmos que associassem uma figura geométrica a cada um dos 12 excertos de música que escutaram.
Os excertos de música tinham duração igual, 30 segundos cada, e abrangiam variados géneros de música, com características díspares. Analisando de forma geral os resultados obtidos, mais de metade dos participantes revelaram tendências idênticas na escolha das figuras, a partir de um total de 7 figuras diferentes. As figuras mais redondas foram o círculo e a elipse; e as mais pontiagudas foram a “explosão” e a “estrela de seis pontas”.
Com a finalidade de discernir quais as características musicais influenciadoras das escolhas dos participantes no inquérito, utilizou-se, principalmente, como ferramenta de análise acústica, o espectrograma. Através de uma análise espectral de cada excerto, foi possível analisar as propriedades acústicas que influenciaram a escolha das figuras.
Aquando da análise dos espectrogramas observaram-se diferentes estruturas harmónicas em cada excerto, em particular estruturas reveladoras de presença de ruído – fenómeno que se define acusticamente pelo seu timbre, intensidade, duração e altura. Concluiu-se, então, que são estas as estruturas harmónicas associadas ao ruído que influenciaram a perceção auditiva e a consequente associação das figuras geométricas.
Abstract - Sound symbolism is a phenomenon with the potential to provide insight about the neurological interaction between auditory and visual stimuli. A survey was conducted with a sample of 117 participants that were asked to associate a geometric shape to twelve music excerpts. The musical excerpts had the same duration of 30 seconds, and they represented several music genres, with distinct features. Overall, more than half of the participants revealed identical tendencies regarding the geometric shapes chosen, from a total of seven different figures. The most round figures were the circle and the ellipse; the most pointy figures were the "explosion" and the six pointed star. With the goal of distinguishing which features influenced the choices of the participants throughout the survey, an analysis tool was used: the spectrogram. Through a spectral analysis of each excerpt it was possible to analyse the acoustic properties that influenced the choice of figures. Upon analysing the spectrograms, and observing the harmonic structures of each excerpt, in particular harmonic structures revealing the presence of noise – a phenomenon that is acoustically defined by its timbre, intensity, duration and pitch. It is concluded that these harmonic structures associated with noise were the ones that influenced the auditory perception and the consequent figure association.
Abstract - Sound symbolism is a phenomenon with the potential to provide insight about the neurological interaction between auditory and visual stimuli. A survey was conducted with a sample of 117 participants that were asked to associate a geometric shape to twelve music excerpts. The musical excerpts had the same duration of 30 seconds, and they represented several music genres, with distinct features. Overall, more than half of the participants revealed identical tendencies regarding the geometric shapes chosen, from a total of seven different figures. The most round figures were the circle and the ellipse; the most pointy figures were the "explosion" and the six pointed star. With the goal of distinguishing which features influenced the choices of the participants throughout the survey, an analysis tool was used: the spectrogram. Through a spectral analysis of each excerpt it was possible to analyse the acoustic properties that influenced the choice of figures. Upon analysing the spectrograms, and observing the harmonic structures of each excerpt, in particular harmonic structures revealing the presence of noise – a phenomenon that is acoustically defined by its timbre, intensity, duration and pitch. It is concluded that these harmonic structures associated with noise were the ones that influenced the auditory perception and the consequent figure association.
Description
Relatório de Projeto Artístico apresentado à Escola Superior de Música de Lisboa, do Instituto Politécnico de Lisboa, para cumprimento dos requisitos à obtenção do grau de Mestre em Música, conforme Decreto-Lei nº107/2008 de 25 de junho.
Keywords
Simbolismo sonoro Música Figuras geométricas Psicoacústica Ruído Sound symbolism Music Geometric figures Psychoacoustics Noise
Citation
Publisher
Instituto Politécnico de Lisboa - Escola Superior de Música de Lisboa