| Título: | Benefit of contextual cues for the perception of temporally degraded speech |
| Autores: |
Abel, Sharon M.; Samuel Lunenfeld Research Inst, Toronto, Canada Najafee, Robert; Samuel Lunenfeld Research Inst, Toronto, Canada |
| Fecha: | 1998-06-01 |
| Publicador: | Canadian Acoustical Association / Association canadienne d'acoustique |
| Fuente: |
Ver documento |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| Tema: |
Speech analysis Speech processing; Speech recognition; Contextual cues |
| Descripción: |
The effect of contextual cues on the understanding of distorted speech was studied. Two groups of subjects, aged 20-25 and 50-59 years participated. Three lists of 50 sentences that were continuous or interrupted at rates of 8/s and 2/s were presented to each ear. In half the sentences within list, the final word was highly predicable from the context, and in half, poorly predicted. Final word recognition scores decreased with interruption, more so for the 2/s rate. Context was compensatory. Middle-aged subjects did not perform more poorly. Factors possibly accounting for this outcome are discussed. L'effet d'indices contextuels sur la compréhension de la parole dégradée a été étudié. Deux groupes de sujets, âges respectivement de 20-25 et 50-59 ans, ont participé à cette étude. Trois listes de 50 phrases ont été présentées, k chacune des oreilles, de façon continue ou interrompue avec un taux de 8/s ou 2/s. Pour la moitié des phrases de chacune des listes, le dernier mot était hautement prévisible sur la base du contexte et, dans la seconde moitié, peu prévisible. La reconnaissance du mot final décroît avec l'interruption, et ce davantage pour le taux de 2/s. Le contexte s'est avéré compensatoire. Les sujets plus âgés ne performent pas moins bien que les plus jeunes. Les facteurs pouvant potentiellement expUqués ces résultats sont discutés. |
| Idioma: | Inglés |
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