Buccal mute communication method and system

Abstract

The invention discloses a buccal mute communication method and a system. The method comprises the following steps: collecting an intraoral first signal and an intraoral second signal; determining vibration characteristic information according to the intraoral first signal, and determining form position information according to the intraoral second signal; determining voice information by using a voice prediction model according to the vibration characteristic information and the form position information; and synthesizing a voice by means of the voice information. By collecting the first signal in the mouth and the second signal in the mouth, the vibration characteristic information is determined according to the first signal in the mouth, and the form position information is determined according to the second signal in the mouth, so that the background noise interference can be reduced, the confidentiality is high, and no trauma is caused; the voice prediction model is used, the voiceinformation is determined according to the vibration characteristic information and the form position information, the voice is synthesized by using the voice information, the learning cost is low, the use is convenient and the comfort is high.

Description

technical field [0001] The present application relates to the technical field of speech signal processing, in particular to a method and system for oral silent communication. Background technique [0002] Although the speech recognition technology based on acoustic signal analysis has been developed relatively maturely, there are still some technical limitation scenarios. For example, in a noisy environment, it is impossible to completely separate the speech signal from the background noise. On the other hand, when needing to keep quiet or to protect privacy, it is impossible to use voice communication, as in military command operations or in the instructions sent by people to machines, it is generally to be kept secret. Therefore, silent communication is of great significance. [0003] Silent communication is also of great significance to people with acquired pathological dysphonia. They cannot pronounce normally, but their tongue, teeth, lips and other tissues and vocal ...

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Problems solved by technology

However, this method requires the use of external equipment for identification, which is inconvenient to use

In terms of silent speech recognition, in 2005, Dai Limei et al. recognized 10 Chinese numbers 0-9 with 5-channel EMG signals and achieved a recognition rate of 85%. The more electrodes, the more spatio-temporal information of EMG signals related to pronunciation The more, the more conducive to the identification of EMG signals. Researchers often use EMG acquisition circuits with more than 3 channels, but because the electrodes are attached to the face and throat, it often brings discomfort to the experimental subjects. The more electrodes, more uncomfortable feeling

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