Effects of hearing loss due to aging or anything on listening score of audio signal and psychological impression for speech audibility

Abstract

This paper considers how the listening score of audio signal and psychological impression for speech audibility change taking into account an effect of the hearing loss due to aging or anything. Frequency filters simulating hearing loss due to aging or anything are first prepared. Psychological listening experiment is conducted, in which both the audio signal and the noise which passed through the above-mentioned filters are transmitted to subjects with normal hearing. In addition, using the observed data of experiment, the relationships between spectral distance and the listening score/psychological impression for speech audibility are considered. Next, by use of this relationships, prediction problems of the listening score and psychological impression for speech audibility are discussed. The predicted results are in good agreement with the observed values.