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Voice enhancement method for use in voice identification process of electric wheelchair

A technology of speech recognition and electric wheelchair, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of unsatisfactory speech recognition and recognition effect, and achieve the effect of improving the recognition rate and realizing precise control.

Inactive Publication Date: 2014-05-28
宋扬 +3
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  • Abstract
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an electric wheelchair control system based on speech enhancement in view of the unsatisfactory recognition effect of existing speech recognition in a noisy environment

Method used

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  • Voice enhancement method for use in voice identification process of electric wheelchair
  • Voice enhancement method for use in voice identification process of electric wheelchair
  • Voice enhancement method for use in voice identification process of electric wheelchair

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Embodiment Construction

[0067] Below we will further elaborate on the voice enhancement-based electric wheelchair control system and control method of the present invention in conjunction with the accompanying drawings and specific embodiments, in order to understand the composition structure and working principle of the present invention more clearly, but not In this way, the protection scope of the present invention is limited.

[0068] The object of the present invention is to design a voice recognition control system for an electric wheelchair, which includes: a microphone, an operating platform based on a microprocessor, an RS-232 serial port communication module, and an electric wheelchair body. The microphone is used as the input of the entire voice control system; the microprocessor is used as the upper computer of the entire voice control system to process voice signals; the wireless communication module is used for communication between the upper computer and the lower computer; the electric...

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Abstract

The invention relates to a voice enhancement method for use in the voice identification process of an electric wheelchair. According to the enhancement method, enhancement is performed by using a voice enhancement algorithm combining an audio masking effect and a priori signal-to-noise ratio, so that the problem of low identification rate of intelligent wheelchair robust voice identification in a noise environment is solved. The method has high generality to a specific human voice identification system. By applying the method to voice identification in an electric wheelchair voice control system, the identification rate of the system in the noise environment is increased, accurate control of the electric wheelchair is realized, and voice interaction between a user and the electric wheelchair is realized.

Description

technical field [0001] The invention relates to the field of voice control, in particular to the application of voice recognition technology in electric wheelchairs. Background technique [0002] With the development of society and the improvement of human civilization, the demand for services for the elderly and the disabled will increase. They need to use modern high-tech to improve their quality of life and freedom of life. The aging process of the world's population is accelerating. In addition, due to various traffic accidents, natural and man-made disasters and various diseases, thousands of people lose one or more abilities (such as walking, hands-on ability, etc.) every year. The reality has promoted the application of barrier-free technology in helping the elderly and the disabled. Therefore, barrier-free technology has become a research hotspot for domestic and foreign scientific and technological personnel. [0003] Barrier-free technology is the use of advanced...

Claims

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Application Information

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IPC IPC(8): G10L21/0232G10L15/20
Inventor 金会庆宋扬金来章志达魏晶张毅刘想德徐晓东
Owner 宋扬
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