Electronic larynx speech reconstructing method and system thereof

Abstract

The invention provides an electronic larynx speech reconstructing method and a system thereof. The method comprises the following steps of: firstly, extracting model parameters form collected speech as a parameter library; secondly, collecting the face image of a sounder, and transmitting the face image to an image analysis and processing module to obtain the sounding start moment, the sounding stop moment and the sounding vowel category; thirdly, synthesizing a voice source wave form through a voice source synthesizing module; and finally, outputting the voice source wave form through an electronic larynx vibration output module. Wherein the voice source synthesizing module is used for firstly setting the model parameters of a glottis voice source to synthesize the glottis voice source wave form, then simulating the transmission of the sound in the vocal tract by using a waveguide model and selecting the form parameters of the vocal tract according to the sounding vowel category so as to synthesize the electronic larynx voice source wave form. The speech reconstructed by the method and the system is closer to the sound of the sounder per se.

Description

【Technical field】 [0001] The invention belongs to the field of lesion speech reconstruction, in particular to an electronic laryngeal speech reconstruction method and system thereof. 【Background technique】 [0002] Speech or language is the main means for human beings to express their emotions and communicate with each other. However, according to statistics, tens of thousands of people around the world lose their ability to speak temporarily or permanently due to various throat surgeries every year. In view of this, various voice rehabilitation techniques have emerged, among which esophageal speech, tracheoesophageal speech, and artificial electronic laryngeal speech are the most common, and artificial electronic laryngeal speech is widely used because of its simple use, wide application range, and long-term vocalization . [0003] Chinese Invention Patent Application No. 200910020897.3 discloses a voice communication method of an automatically adjusted pharyngeal electron...

AI Technical Summary

Problems solved by technology

It can be seen that providing the missing voice vibration source is the most fundamental task of the electronic laryngoscope. However, most of the vibrating voice sources provided by the electronic laryngeal on the market are square waves or pulse signals. Although the improved linear transducer can Output glottal voice sources, but these are not consistent with the missing vocal vibration sources in actual use

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