A Perceptual Audio Quality Measure Based on a Psychoacoustic Sound Representation 论文

详细信息

发表期刊/会议

Journal of the Audio Engineering Society

发表日期

1992-12-01

发表年份

1992

摘要

A general method for predicting the subjectivity quality of speech codecs has been developed. This method uses the concept of an internal sound representation. A model of the human auditory system is used to calculate the internal representation of the input and output signals of a speech codec. The transformation from the physical domain to the psychophysical (internal) domain is performed by way of three operations (frequency warping, time frequency smearing, and level compression). These operations allow modeling of the masking behavior of the human auditory system both at and above masked threshold