Sixth European Conference on Speech Communication and Technology
(EUROSPEECH'99)

Budapest, Hungary
September 5-9, 1999

An Objective Distortion Estimator for Hearing Aids and its Application to Noise Reduction

Mitsunori Mizumachi, Masato Akagi

School of Information Science, Japan Advanced Institute of Science and Technology, Tatsunokuchi, Nomigun, Ishikawa, Japan.

In this paper, an objective distortion estimator called auditory-oriented spectral distortion(ASD) is proposed. It is confirmed that the ASD can accurately predict the auditory perceptual distortions represented by the mean opinion score(MOS). The ASD is used as a criterion to optimize the noise reduction algorithm for instruments that need to reduce noises appealing to the ear, for example hearing aids. Experimental results say that a suitable value of the parameter should be different for the purpose to use as between improving the auditory impressions and a front-end of speech recognition systems.


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Bibliographic reference.  Mizumachi, Mitsunori / Akagi, Masato (1999): "An objective distortion estimator for hearing aids and its application to noise reduction", In EUROSPEECH'99, 2619-2622.