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handle: 10261/7250
[EN] This work deals with the objective computation of roughness, a fundamental perceptive attribute of acoustic signals. Starting from the general theory of roughness, the Aures model, that describes this sensation as a series of proccesses that take place withing the human hearing, has been implemented in PC. A version of this model due to Daniel and Weber has been optimized. The inclusion of a threshold level of specificic excitations in the 24 subjective frequency bands, to contribute to perception, is perhaps the more relevant contribution. The computational model has been tested for a large set of characteristic signals, of well known subjective roughness, showing a good agreement.
[ES] En este trabajo se implementa un modelo computacional para el cálculo objetivo de la aspereza de señales acústicas siguiendo el modelo de Aures con las optimizaciones de Daniel y Weber, contrastado para señales moduladas en amplitud y en frecuencia con los datos disponibles en la literatura para este tipo de señales.
Este trabajo se ha desarrollado dentro del proyecto "Factores físicos y psíquicos de la calidad perceptiva de señales acústicas", acogido al convenio de cooperación CSIC-CNRS, entre el Departamento de Acústica Ambiental del Instituto de Acústica, y el grupo Psychoacoustique del LMA de Marsella.
7 pp.-- PACS nr.: 43.66.-x.-- Comunicación presentada en los siguientes congresos: XXX Jornadas Nacionales de Acústica – TecniAcústica 1999. Encuentro Ibérico de Acústica (Ávila, 20-22 Octubre 1999).
Publicado en número especial de la Revista de Acústica: Vol 30(1999).
Peer reviewed
Computational model, Signal roughness, Perceptive attributes, Threshold level, Aures model
Computational model, Signal roughness, Perceptive attributes, Threshold level, Aures model
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