Glottal wave analog type artificial electronic throat with personal characteristics

Abstract

The invention relates to a glottal wave analog type artificial electronic throat with personal characteristics, in particular to a real glottal wave analog type artificial electronic throat with personal characteristics, which comprises a wave shape generating and processing system with the characteristics of amplitude and frequency jitter, a power amplifying circuit 18 and a miniature electricity-force conversion system 19, wherein the electricity-force conversion system 19 can be regulated and controlled. The invention has a working form that: the wave shape generating and processing system can store glottal wave shapes with personal sounding characteristics; a wave shape generating module 12 generates initial glottal waves according to the stored glottal waves; an amplitude jitter module 14 adds amplitude jitter, and a frequency jitter generating module 13 adds frequency jitter; the generated wave shapes are converted into analog signals through a digital-to-analogue conversion module 17; the output signal wave shapes are converted into mechanical vibration by the electricity-force conversion device 19 after power amplification; the mechanical vibration is applied to the neck of a patient to generate glottal waves; and the glottal wave shapes are modulated by the tongue, the nasal cavity, the oral cavity, the lip, and other organs of the patient to form voice outside the lip. A wave shape frequency regulating module 15 and a wave shape amplitude regulating module 16 are respectively applied to the wave shape generating module 12 so as to regulate frequency and amplitude.

Description

technical field [0001] The invention belongs to the field of voice rehabilitation for voice-deficiency patients, and relates to a glottal wave simulation electronic artificial larynx with personal characteristics. Background technique [0002] Among the various means used by human beings to communicate, voice is the most basic, effective and important one. At present, there are hundreds of thousands of patients with laryngeal cancer and other serious laryngeal diseases in the world. In order to treat laryngeal diseases, they have to undergo laryngectomy. Lose the ability to use voice for language communication. Electronic artificial larynx has been used as an external voice rehabilitation method for patients with voice loss for about 40 years. The existing electronic artificial larynx works in a simple way. The patient puts the device against the throat, and the pulse generated by the control switch is applied to the patient's neck through vibration, transmitted to the voc...

AI Technical Summary

Problems solved by technology

The current electronic artificial larynx has many shortcomings such as lack of voice change, obvious machine smell, and large background noise.

[0003] In order to improve the pronunciation effect, the current researchers focus on the removal of the background noise of the electronic artificial laryngeal, and the control of the electronic artificial laryngeal pulse generation through EMG and other signals. Due to the complexity of the EMG signal generation and analysis, The effect is not ideal

Some researchers use the collection and analysis of voice signals, image signals and noise signals to regulate the voice of electronic artificial laryngeal, the mechanism is complicated, the cost is increased, and the reliability is low

Based on the limitations of the current electronic laryngeal technology, the vibration waveform generated by the electronic artificial laryngoscope and the normal glottal waveform are very different in both the time domain and the frequency domain. main reason

Images