Changing state and the irrelevant sound effect

Auteurs-es

  • Aimée M. Surprenant Dept. of Psychology, Memorial University of Newfoundland, St. John's, Nfld. A1B 3X9, Canada
  • Ian Neath Dept. of Psychology, Memorial University of Newfoundland, St. John's, Nfld. A1B 3X9, Canada
  • Tamra J. Bireta Dept. of Psychology, College of New Jersey, Ewing, NJ 08628, United States

Mots-clés :

Acoustic noise, Information analysis, Speech, Time varying systems, White noise, Amplitude envelope, Base stimulus, Sinewave speech

Résumé

The definition of changing relating to the dynamic spectral and temporal properties of the irrelevant stimuli are studied. This envelope stimulus was constructed by outlining the amplitude envelope of the base passage and then replacing the time-varying frequency information with a pure tone or white noise. The effect of backward speech and sinewave speech modeled after the base stimulus was tested. A sinewave speech stimulus was constructed by performing an LPC re-synthesis on the base stimulus replacing the noise in speech formants with sinewaves at the center frequency of the formant. It was observed that a change in amplitude by itself gives little or no information about the content of the stimulus and, therefore, does not attract much in the way of attentional resources.

Fichiers supplémentaires

Publié-e

2007-09-01

Comment citer

1.
Surprenant AM, Neath I, Bireta TJ. Changing state and the irrelevant sound effect. Canadian Acoustics [Internet]. 1 sept. 2007 [cité 6 mai 2026];35(3):86-7. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1913

Numéro

Vol. 35 No. 3 (2007)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

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