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Classroom sound interaction system

A voice interaction, classroom technology, applied in speech analysis, short-range communication services, security devices, etc., can solve other classroom interference, cheating, poor targeting, etc., to improve clarity, avoid differences, and reduce noise. good effect

Active Publication Date: 2021-04-02
刘天仪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Existing interactive systems generally focus on the interaction of audio and video, and traditional loudspeakers are generally used for sound transmission, and when multiple classes are teaching at the same time , due to the loud sound of the loudspeaker and the poor targeting, it is easy to cause interference to other classrooms
[0004]In addition, most of the current classrooms need to sign in, the traditional paper sign-in is very inefficient, and the electronic punch-in sign-in method is not effective for identity recognition, and it is easy to Possibility of signing on behalf of others or cheating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] combine Figure 1-4 , a classroom sound interaction system, comprising a relay host 1, a computer 2, a mobile phone 3, a microphone 4, and a bluetooth headset 5; the relay host 1 can be wirelessly connected to a plurality of bluetooth headsets 5, and each bluetooth headset 5 has a unique identification information; the computer 2 and the mobile phone 3 can be wirelessly connected to the relay host 1, and the computer 2 or the mobile phone 3 can obtain from the relay host 1 the quantity and identification information of the bluetooth earphones 5 connected with the relay host 1;

[0040] The microphone 4 is wirelessly connected to the relay host 1, the sound signal recorded by the microphone 4 can be forwarded to the Bluetooth headset 5 by the relay host 1 in real time, the Bluetooth headset 5 has a radio function, and the sound signal collected by the Bluetooth headset 5 can be sent to the relay host 1 Perform character recognition and voiceprint recognition.

[0041] T...

Embodiment 2

[0052] This embodiment introduces the noise reduction process.

[0053] The main controller processes the sound signal obtained from the microphone 4 through noise reduction processing as follows:

[0054] The microphone 4 collects the first sound signal, and converts the first sound signal into the first digital sound signal, and then sends the first digital sound signal to the master controller of the relay host 1; a second sound signal, and convert the second sound signal into a second digital sound signal, and then send the second digital sound signal to the main controller of the relay host 1, and the main controller carries out multiple second digital sound signals. The signals are superimposed, and the volume is normalized to obtain a standardized second digital sound signal; the main controller performs fast Fourier transform on the first digital sound signal and the standardized second digital sound signal, and converts them into the first frequency domain signal and ...

Embodiment 3

[0056] This embodiment introduces the sign-in function, and the specific working method of the sign-in function is as follows:

[0057] Send a sign-in start signal to the relay host 1 through the computer 2 or the mobile phone 3, and the relay host 1 enters the sign-in mode;

[0058] By computer 2 or mobile phone 3, input accompanying text password to relay host 1, described accompanying text password is the text password that the user imports according to one's own preferences; Relay host 1 puts accompanying text password into storage module storage;

[0059] The Bluetooth headset 5 establishes a Bluetooth connection with the relay host 1, and the relay host 1 obtains identification information from the Bluetooth headset 5;

[0060] The sound recognition module obtains the sound signal uploaded by a bluetooth headset 5 from the main controller and performs character recognition and voiceprint recognition on the sound signal, and combines the results of character recognition a...

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Abstract

The invention relates to a classroom sound interaction system. A classroom interaction system is established by combining the characteristics of a Bluetooth headset, and the problems that in the priorart, the classroom is limited by the size of space, sound transmission is limited, and noise is caused by adopting a common loudspeaker are solved; and the sound collected by the microphone is sent to the Bluetooth headset after being denoised, so that the sharpness of the sound is greatly improved. A new sign-in system is also established, sign-in is quick, and the possibility of sign-in substitution is eliminated by using a mode of a set of lobby character passwords, earphone identity recognition and voiceprint recognition.

Description

technical field [0001] The invention relates to a teaching device, in particular to a classroom sound interaction system. Background technique [0002] The interactive teaching system integrates video, audio and data communication, supports rich multimedia teaching and courseware production management, and can realize interactive, live broadcast, on-demand and other teaching modes. An interactive online learning platform system for learning management and knowledge management launched by enterprises. [0003] Existing interactive systems generally focus on the interaction of audio and video, and traditional loudspeakers are generally used for sound transmission. However, when multiple classes are teaching at the same time, the sound of the loudspeaker is very loud and the pertinence is not good. , It is easy to cause other classrooms to receive interference. [0004] In addition, most of the current classrooms require sign-in. The traditional paper-based sign-in is very in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/80H04W12/06G07C1/10G10L17/22G10L17/24H04R1/10H04R3/04H04W76/10
CPCH04W4/80H04W12/06H04R1/10H04R1/1091H04R3/04G10L17/22G10L17/24H04W76/10G07C1/10
Inventor 刘天仪
Owner 刘天仪
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