Method for simulating key operation by tapping microphone array

Abstract

The invention provides a method for simulating key operation by tapping a microphone array. The method includes the following steps: S1, setting and initializing a tapping event start flag and a timer; S2, taking a 10 ms data as a basic processing unit, and reading collected data of a microphone; S3, detecting whether the collected data meets variation characteristics of a tapping signal or not, and if so, entering S4; if not, adding a '0' at the end of the data sequence, and entering S5; S4, calculating the zero-crossing rate of the collected data, judging whether the collected data is a tapping signal or not according to the zero-crossing rate, and if so, adding a '1' at the end of the data sequence; If not, adding a '0' at the end of the data sequence; S5, intercepting a complete tapping event; S6, searching a corresponding desired operation from the mapping list according to the intercepted tapping event, and performing the desired operation. According to the method for simulatingkey operation by tapping a microphone array, the function of completing the desired operation of users by tapping the microphone is achieved, and inconvenience caused by operation of the remote controller in the past can be effectively overcome.

Description

technical field [0001] The invention relates to the technical field of voice communication, in particular to a method for tapping a microphone array to simulate button operation. Background technique [0002] In the conferencing system, the functions expected by the user are generally completed through the operation of the remote control, such as output volume adjustment, left and right shifting of the function list, and other operations. Through the operation of the remote control, not only the key functions are clear, but also the operation is simple and the cost is low. Low; but there are the following defects in the operation of the remote control: 1. When the remote control fails, it will affect the normal use of the conference function; 2. When there are many people who need to operate, it is inconvenient to pass the remote control, which affects the user experience. Of course, there are also more convenient ways in the prior art. For example, related operations can be...

AI Technical Summary

Problems solved by technology

[0002] In the conferencing system, the functions expected by the user are generally completed through the operation of the remote control, such as output volume adjustment, left and right movement of the function list and other operations. Through the operation of the remote control, not only the button functions are clear, but also the operation is simple and the cost is low. Low; but there are the following defects in the operation of the remote control: 1. When the remote control fails, it will affect the normal use of the conference function; 2. When there are many people who need to operate, it is inconvenient to pass the remote control, which affects the user experience

Of course, there are also more convenient ways in the prior art. For example, related operations can be realized through the touch screen, and more advanced ones can be realized through voice recognition. However, the cost of both touch screen and voice recognition is relatively high. Especially for the implementation of speech recognition, which requires a large number of sample training, the development cost is higher

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