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Two phase effects in roughness perception

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text
 

Genre(s)

article
 

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document imprimé
 

Cette ressource est disponible chez l'organisme suivant : Ircam - Centre Pompidou

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Titre

Two phase effects in roughness perception
 

Nom(s)

Pressnitzer, Daniel (auteur)
 
McAdams, Stephen (auteur)
 

Publication

1999
 

Description

Sujet(s)

timbre   roughness   phase   psychoacoustics  
 

Résumé

The respective influences of spectral and temporal aspects of sound in roughness perception are examined by way of phase manipulations. In a first experiment, the phase of the central component of three-component signals is shown to modify perceived roughness, for a given amplitude spectrum, regardless of whether it modifies the (physical) envelope. A second experiment shows that the shape of the waveform envelope, for a given amplitude spectrum and a given modulation depth, also influences perceived roughness. We interpret both of these results by considering the envelope of an internal representation that is deduced from the physical signal by taking into account peripheral auditory processing. Our results indicate that the modulation depth of such an internal representation is not the only determinant of roughness, but that an effect of temporal asymmetry is also to be taken into account.
 

Note(s)

Article paru dans : JASA: Journal of the Acoustical Society of America
 

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Date de la notice

2006-03-14 01:00:00
 

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