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INFLUENCE OF HIGH PASS FILTERING ON THE INTELLIGIBILITY OF AMPLITUDE‐COMPRESSED SPEECH

INFLUENCE OF HIGH PASS FILTERING ON THE INTELLIGIBILITY OF AMPLITUDE‐COMPRESSED SPEECH Monosyllabic triplet word intelligibility scores were obtained from normal-hearing and hearing-impaired, loudness-recruiting subjects under two experimental conditions: (1) high-pass (1200 Hz)-filtered, linear amplification, and (2) high-pass (1200 Hz)-filtered, compression amplification using input-to-output ratios of 5:1 and 20:1. Test materials were administered at increased sensation levels of 0, 10, 20, and 30 dB. In general, speech intelligibility was slightly enhanced for normal and hearing-impaired listeners, but only at lower sensation levels. Moreover, the improvement was observed only under the filtered, compression amplification condition for both groups. No important differences were observed between the two compression ratios used. This compression advantage may or may not be observed in clinical hearing aid evaluations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the American Auditory Society Wolters Kluwer Health

INFLUENCE OF HIGH PASS FILTERING ON THE INTELLIGIBILITY OF AMPLITUDE‐COMPRESSED SPEECH

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Copyright
Copyright 1979 by The Williams & Wilkins Co.
ISSN
0360-9294

Abstract

Monosyllabic triplet word intelligibility scores were obtained from normal-hearing and hearing-impaired, loudness-recruiting subjects under two experimental conditions: (1) high-pass (1200 Hz)-filtered, linear amplification, and (2) high-pass (1200 Hz)-filtered, compression amplification using input-to-output ratios of 5:1 and 20:1. Test materials were administered at increased sensation levels of 0, 10, 20, and 30 dB. In general, speech intelligibility was slightly enhanced for normal and hearing-impaired listeners, but only at lower sensation levels. Moreover, the improvement was observed only under the filtered, compression amplification condition for both groups. No important differences were observed between the two compression ratios used. This compression advantage may or may not be observed in clinical hearing aid evaluations.

Journal

Journal of the American Auditory Society – Wolters Kluwer Health

Published: Nov 1, 1979

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