Joint predictions of psychoacoustic masking and speech intelligibility

What is it about?

An auditory model that combines the concepts of the power-spectrum model (PSM)[Patterson and Moore (1986). Frequency Selectivity in Hearing, pp. 123-177] and the envelope power-spectrum model (EPSM)[Ewert and Dau (2000). J. Acoust. Soc. Am. 108, 1181-1196], denoted as generalized power-spectrum model (GPSM) is suggested to jointly account for psychoacoustics and speech intelligibility.

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Why is it important?

The suggested GPSM was shown to account for a large variety of psychoacoustic data [e.g., spectral masking, amplitude modulation (AM) masking, AM discrimination] and to predict speech intelligibility in various types of background noise (stationary and fluctuating maskers, noisy speech in reverberation, noisy speech processed by spectral subtraction). Moreover, the GPSM offers a framework to study different aspects of temporal and spectral processing and their joint effect on psychoacoustic masking and speech intelligibility.