Audio and video teaching equipment, intelligent teaching system
An audio and video and equipment technology, applied in the field of audio and video teaching equipment, can solve problems such as inability to apply video processing, and achieve the effect of reducing installation and debugging time, improving user experience, and convenient control
Active Publication Date: 2021-08-17
北京竞业达数码科技股份有限公司
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Problems solved by technology
In addition, remote interactive echo cancellation and local sound reinforcement howling suppression have always been processed by pure audio algorithms. Generally, independent audio processing equipment is used in remote interaction or sound reinforcement applications. This audio processing is carried out independently and has never been used. video, so it cannot be used in video processing
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] figure 1 It shows an audio-video teaching device according to an embodiment of the present invention, which is used for a smart blackboard or a touch all-in-one machine. The audio-video teaching device includes:
[0029] The core board 10 is used to process the audio and video obtained;
[0030] Audio board 20, audio processing module 21 ...
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An embodiment of the present invention provides an audio-video teaching device and an intelligent teaching system, which are used in a smart blackboard or a touch all-in-one machine, including: a core board for processing acquired audio and video; an audio board integrated with An audio processing module and an audio codec processing module. The audio processing module includes an echo cancellation unit, a howling suppression unit, and an automatic gain control processing unit. The audio codec processing module includes an A / D conversion unit, a D / A conversion unit, a filter unit, and The audio mixing processing unit: the core board is used to selectively transmit the audio obtained through audio and video processing to the audio processing module and / or the audio codec processing module according to the received manipulation instruction or the obtained audio and video content. This case can simplify the classroom audio connection, reduce the installation and commissioning time of smart classroom equipment, support the teaching activities of local amplifying classes and remote interactive teaching through the smart blackboard, and improve the efficiency of audio and video processing.
Description
technical field [0001] The invention relates to the technical field of teaching equipment, in particular to an audio-video teaching equipment used for a smart blackboard or a touch integrated machine. Background technique [0002] At present, smart blackboards or touch all-in-one machines are widely used in the teaching field, and have become standard equipment in various classrooms of general education, vocational education, and higher education. Both the smart blackboard and the touch all-in-one machine have integrated audio sound reinforcement function, but there are basically no other audio processing functions. However, audio and video teaching is now widely used in schools, especially in classrooms. The use of audio is just needed for teaching activities. Basically, it can be said that any teaching activity is inseparable from audio. At present, the absence of audio processing in smart blackboards or touch all-in-one machines requires the addition of corresponding aud...
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IPC IPC(8): G09B5/06
CPCG09B5/065
Inventor 唐震宇
Owner 北京竞业达数码科技股份有限公司