CN103854683A - Audio collecting device applied to interactive teaching system - Google Patents
Audio collecting device applied to interactive teaching system Download PDFInfo
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- CN103854683A CN103854683A CN201210525204.8A CN201210525204A CN103854683A CN 103854683 A CN103854683 A CN 103854683A CN 201210525204 A CN201210525204 A CN 201210525204A CN 103854683 A CN103854683 A CN 103854683A
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Abstract
The invention discloses an audio collecting device applied to an interactive teaching system. The audio collecting device applied to the interactive teaching system comprises an audio collecting unit, a denoising unit, a center processing unit and a storage device. The audio collecting unit is at least in the sound track 2.1 and used for collecting and generating audio signals. The denoising unit is connected with the audio collecting unit. The center processing unit is connected with the denoising unit and compresses and converts the format of sound denoised by the denoising unit. The storage unit receives and stores the audio signals converted by the center processing unit. The denoising unit is based on the audio adaptive algorithm. The audio collecting unit is an array microphone. The center processing unit is a reduced instruction set computer of an ARM 9 structure. By the adoption of the technical scheme, the audio collecting device applied to the interactive teaching system can collect original audio sound more effectively by additional arrangement of simple equipment, the mature technology is used in the whole process, cost is low, and the audio collecting device applied to the interactive teaching system can be widely produced and used conveniently.
Description
Technical field
The present invention relates to a kind of audio collecting device that is applied to interactive education system.
Background technology
The existing education system of China is very huge, traditional education is all taking student and teacher as main, teacher's teaching task is conventionally all very heavy, a kind of interactive teaching live broadcast system occurring now can effectively address this is that, but, the audio collecting device of traditional live broadcast system, it is all the prior art adopting, hardware device is not optimized for instructional device, and bulky, is not too applicable to classroom teaching environment.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of audio collecting device that is applied to interactive education system of development comprises the audio collection unit that is at least 2.1 sound channels, gathers and generate sound signal:
The noise reduction unit being connected with this audio collection unit;
The CPU (central processing unit) being connected with described noise reduction unit, by the sound after described noise reduction unit noise reduction, carries out format compression conversion;
Memory storage, the volume sound signal that receives and store described CPU (central processing unit) conversion at least comprises a teaching microphone and multiple student's microphone, radio communication between microphone in described audio collection unit.
Described noise reduction unit is based on audio self-adaptation algorithm.
Described audio collection unit is array microphone.
Described CPU (central processing unit) is the Reduced Instruction Set Computer based on ARM9 framework.
Owing to having adopted technique scheme, a kind of audio collecting device that is applied to interactive education system provided by the invention, by increasing simple equipment, can the original audio sound of more efficiently collection, and use is all proven technique, with low cost, be extremely convenient to large-scale production and use.
Brief description of the drawings
For the technical scheme of clearer explanation embodiments of the invention or prior art, introduce simply the accompanying drawing of required use in embodiment or description of the Prior Art being done to one below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is apparatus module figure of the present invention.
Embodiment
For making object, technical scheme and the advantage of embodiments of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is known to complete description:
As shown in Figure 1:
Be applied to an audio collecting device for interactive education system, comprise the audio collection unit that is at least 2.1 sound channels, gather and generate sound signal:
The noise reduction unit being connected with this audio collection unit;
The CPU (central processing unit) being connected with described noise reduction unit, by the sound after described noise reduction unit noise reduction, carries out format compression conversion;
Memory storage, receives and stores the volume sound signal that described CPU (central processing unit) is changed.Described noise reduction unit is based on audio self-adaptation algorithm.At least comprise a teaching microphone and multiple student's microphone in described audio collection unit.Described audio collection unit is array microphone.Described CPU (central processing unit) is the Reduced Instruction Set Computer based on ARM9 framework.
Owing to having adopted technique scheme, a kind of audio collecting device that is applied to interactive education system provided by the invention, by increasing simple equipment, can the original audio sound of more efficiently collection, and use is all proven technique, with low cost, be extremely convenient to large-scale production and use.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. an audio collecting device that is applied to interactive education system, comprises
The audio collection unit that is at least 2.1 sound channels, gathers and generates sound signal:
The noise reduction unit being connected with this audio collection unit;
The CPU (central processing unit) being connected with described noise reduction unit, by the sound after described noise reduction unit noise reduction, carries out format compression conversion;
Memory storage, receives and stores the volume sound signal that described CPU (central processing unit) is changed;
At least comprise a teaching microphone and multiple student's microphone in described audio collection unit, radio communication between microphone.
2. a kind of audio collecting device that is applied to interactive education system according to claim 1, is further characterized in that: described noise reduction unit is based on audio self-adaptation algorithm.
3. a kind of audio collecting device that is applied to interactive education system according to claim 1, is further characterized in that: described audio collection unit is array microphone.
4. a kind of audio collecting device that is applied to interactive education system according to claim 1, is further characterized in that: described CPU (central processing unit) is the Reduced Instruction Set Computer based on ARM9 framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525204.8A CN103854683A (en) | 2012-12-07 | 2012-12-07 | Audio collecting device applied to interactive teaching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525204.8A CN103854683A (en) | 2012-12-07 | 2012-12-07 | Audio collecting device applied to interactive teaching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103854683A true CN103854683A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210525204.8A Pending CN103854683A (en) | 2012-12-07 | 2012-12-07 | Audio collecting device applied to interactive teaching system |
Country Status (1)
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| CN (1) | CN103854683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978884A (en) * | 2015-07-18 | 2015-10-14 | 呼和浩特职业学院 | Teaching system of preschool education profession student music theory and solfeggio learning |
| CN114038488A (en) * | 2021-11-02 | 2022-02-11 | 维沃移动通信有限公司 | Method and device for acquiring and playing multimedia information and electronic equipment |
-
2012
- 2012-12-07 CN CN201210525204.8A patent/CN103854683A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978884A (en) * | 2015-07-18 | 2015-10-14 | 呼和浩特职业学院 | Teaching system of preschool education profession student music theory and solfeggio learning |
| CN114038488A (en) * | 2021-11-02 | 2022-02-11 | 维沃移动通信有限公司 | Method and device for acquiring and playing multimedia information and electronic equipment |
| CN114038488B (en) * | 2021-11-02 | 2023-07-18 | 维沃移动通信有限公司 | Method and device for acquiring and playing multimedia information and electronic equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |