Speech enhancement for an artificial larynx using a low-dimensional model of the hearing process

摘要

After total laryngectomy the normal voice can be replaced by an electronic artificial larynx (AL). However, the results of the surrogate voice are not overall satisfying due to a robotic clattered sound of that prosthesis. In this paper the results of a sound investigation for an AL are presented. This work is part of our AL research project of laryngectomee's speech enhancement. As a result an autoregressive model of the hearing process is derived that can directly be used for speech enhancement.