摘要
A new auditory system model based on a combination of physiological and psycho-logical acoustic data has been proposed. This model consists of a bank of nonuniform bandpassfilters, detectors and main-frequency choosing mechanisms, they act as basilar membranes, innerhair cells and nerve fibers, respectively. Combining with the improved critical bandwidth pa-rameters, the input to this model is analogous to the pressure at the eardrum, and the outputof this model simulates various features of the firing pattern. The synthesizer obtains the resul-tant speech by use of the simple adding method. Computer simulations show that the resultantspeech is highly intelligible and natural. The proposed model is correct and the improvement ofthe critical bandwidth parameters is effective.
A new auditory system model based on a combination of physiological and psycho- logical acoustic data has been proposed. This model consists of a bank of nonuniform bandpass filters, detectors and main-frequency choosing mechanisms, they act as basilar membranes, inner hair cells and nerve fibers, respectively. Combining with the improved critical bandwidth pa- rameters, the input to this model is analogous to the pressure at the eardrum, and the output of this model simulates various features of the firing pattern. The synthesizer obtains the resul- tant speech by use of the simple adding method. Computer simulations show that the resultant speech is highly intelligible and natural. The proposed model is correct and the improvement of the critical bandwidth parameters is effective.
基金
Partially supported by China National Science Foundation.
