Abstract

The purpose of this study was the evaluation of multiband compression limiting designed to protect hearing-impaired listeners from high-level speech and environmental sounds. The relative performance of two linear and four compression-limiting systems has been measured for two subjects with flat sensorineural losses. The test materials, consisting of nonsense CVC syllables spoken by male and female speakers, were presented over a 30-dB range of input levels. The subjects chose an overall listening level consistent with both maximum intelligibility over the range of input levels and long-term listening comfort. Preliminary results indicate that both higher average presentation levels and increased speech intelligibility scores are associated with compression limiting relative to linear amplification. [Work supported by NIH.]

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