EFECTO DE ENMASCARAMIENTO EN VIBRACIONES DE CUERPO ENTERO
Résumé
This study investigated the existence of masking effects for vertical vibrations of seated subjects. The perception threshold on sinusoidal vibrations at three different frequencies (30, 35 and 40 Hz) was determined using a 3-AFC 3-down 1-up method. This threshold was also determined in the presence of a band-pass noise (10 to 20 Hz) at three different levels (between 0.1 and 0.315 m/s2). The results suggest that the presence of this band-pass noise increases the perception threshold of the test signal. Various indicators explaining this phenomenon will be presented.
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