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Original Article

Effects of reverberation and filtering on speech rate judgment

Efectos de la Reverberación y la Filtración sobre la Apreciación de la Velocidad del Lenguaje

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Pages 154-160 | Received 27 Jan 2006, Published online: 07 Jul 2009
 

Abstract

This study investigated the effects of listening condition on speech rate judgment. Four listening conditions, in which a single sentence was presented at 21 speech rates ranging from 90 wpm to 250 wpm, were incorporated. These conditions included non-degraded, reverberation, band-pass filtered, and low-pass filtered conditions, each of which was selected to simulate listening conditions one might encounter in daily life. The participants were 20 young adults (20 to 40 years) with normal hearing. They were asked to make judgments of the rates of speech randomly presented in the four listening conditions using an equal-interval 5-step scale from too slow through too fast. Overall, speech rate was judged to be faster in the reverberant condition than in the other three conditions. These findings may have implications for auditory rehabilitation and counseling.

Sumario

Este estudio investiga los efectos de las condiciones de escucha sobre la apreciación de la velocidad del lenguaje. Se incorporaron cuatro condiciones de escucha, en las que se presentó una frase única a 21 velocidades diferentes de lenguaje, desde 90 ppm hasta 250 ppm. Estas condiciones incluyeron condiciones de no-degradación, reverberación, filtración de paso de banda y filtración de pasa-bajo, cada una de ellas escogida para simulación de condiciones cotidianas de escucha. Los participantes fueron 20 adultos jóvenes (20 a 40 años) con audición normal. Se les pidió que emitieran juicios utilizando una escala de 5 pasos de intervalos iguales, que iba de muy lento a muy rápido. Globalmente, se juzgó que la velocidad del lenguaje era más rápida en la condición reverberante que en las otras tres condiciones. Estos hallazgos pueden tener implicaciones para rehabilitación y la consejería auditiva.

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