Audio system based on Internet of Things technology

Abstract

The invention discloses an audio system based on the Internet of Things technology. The system comprises a digital audio processor, a teacher classroom terminal, a student classroom terminal, a teacher office terminal, a student home terminal, an audio system management terminal, a recording and broadcasting host, a microphone cluster and a sound box. According to the audio system provided by the invention, audio signals of all input ends are processed by the digital audio processor and then played in the sound equipment, so that audio input and output are unified; howling formed by cyclic input of the microphone is suppressed, and background noise, noise and reverberation are also eliminated; audios of all devices are arranged and combined together and are managed through the audio system management terminal instead of information islands; the problems of incomplete and unclear pickup and reverberation of the existing recording and broadcasting system are solved; the problems of audio asynchronism and non-intercommunication of the recording and broadcasting system and the online teaching system are solved, and the problems of non-concentration, delay and howling of sound playing of the sound equipment and the online teaching system are also solved.

Description

Technical Field

[0001] The present invention relates to the technical field of audio control, and in particular to an audio system based on Internet of Things technology. Background Art

[0002] In today's society, many speeches, trainings, and teachings require the use of microphones and speakers to amplify the volume of the speeches so that the audience can clearly hear the content of the speeches; especially in smart classrooms and multimedia classrooms, microphones and speakers are installed, as well as recording and broadcasting hosts; in the existing technology, microphones are directly connected to speakers, and the sound is input from the microphone and directly amplified and output from the speaker. The advantage of this device is that the sound output from the speaker is very loud and the audience can hear it, but the disadvantage is that the sound is input from the microphone again, resulting in an infinite loop of sound amplification and causing howling. In addition, background noise or noise is also input from the microphone, causing interference; the microphone of the recording and broadcasting host also records audio with noise, which results in very poor results in speeches, training, and teaching; at the same time, the recording and broadcasting system does not pick up sound completely, and the audio pickup from corners, wireless microphones, etc. is incomplete and unclear, with obvious echoes; the audio of the recording and broadcasting system is not synchronized with the online teaching system, and they are not interoperable; the sound playback of the audio and online teaching system is not focused, delayed, and howling. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide an audio system based on Internet of Things technology, which eliminates background noise and noise problems and organizes the audio of all terminal devices together for management.

[0004] In order to solve the above problems, the present invention provides an audio system based on Internet of Things technology, the audio system comprising:

[0005] A digital audio processor, which is used to amplify the audio signal and eliminate background noise, noise and howling in the audio;

[0006] A teacher classroom terminal, wherein the teacher classroom terminal includes a teacher classroom terminal microphone;

[0007] A student classroom terminal, wherein the student classroom terminal comprises a student classroom terminal microphone;

[0008] A teacher's office terminal, wherein the teacher's office terminal includes a teacher's office terminal microphone;

[0009] A student home terminal, wherein the student home terminal comprises a student home terminal microphone;

[0010] An audio system management terminal, the audio system management terminal including an audio system control interface for setting and controlling audio;

[0011] A recording and broadcasting host, which is used to record audio and video;

[0012] A microphone cluster, wherein the microphone cluster is an omnidirectional microphone;

[0013] The speaker is used for playing audio.

[0014] Furthermore, the microphone cluster is connected to a digital audio processor.

[0015] Furthermore, the speaker is connected to a digital audio processor.

[0016] Furthermore, the digital audio processor is connected to the recording and broadcasting host, and the digital audio processor is connected to the network; the recording and broadcasting host is connected to the network.

[0017] Furthermore, the teacher's classroom terminal, student classroom terminal, teacher's office terminal, and student's home terminal are connected to the network and connected to the digital audio processor through the network, that is, the teacher's classroom terminal microphone, student classroom terminal microphone, teacher's office terminal microphone, and student's home terminal microphone are connected to the network; the audio system management terminal is connected to the network.

[0018] Furthermore, the teacher's classroom terminal, student's classroom terminal, teacher's office terminal, and student's home terminal, i.e., the teacher's classroom terminal microphone, student's classroom terminal microphone, teacher's office terminal microphone, and student's home terminal microphone are connected to the digital audio processor through a network; the audio system management terminal is also connected to the digital audio processor through a network.

[0019] Furthermore, the digital audio processor is provided with an AI voice noise reduction module.

[0020] Furthermore, the AI ​​voice noise reduction module is used to suppress howling and eliminate background noise, noise and echo.

[0021] The present invention discloses an audio system based on Internet of Things technology, which includes a digital audio processor, a teacher's classroom terminal, a student's classroom terminal, a teacher's office terminal, a student's home terminal, an audio system management terminal, a recording and broadcasting host, a microphone cluster, and a speaker. The audio system of the present invention enables audio signals of all input ends to be processed by a digital audio processor and then played from the speaker, thereby unifying audio input and output. It suppresses the howling caused by the microphone's cyclic input and eliminates background noise, noise, and reverberation. It also organizes the audio of all devices together and manages them through an audio system management terminal rather than an information island. It solves the problems of incomplete, unclear, and reverberant sound pickup in existing recording and broadcasting systems. It also solves the problems of audio asynchronism and non-intercommunication between the recording and broadcasting system and the online teaching system, and solves the problems of unfocused, delayed, and howling sound playback in the speaker and the online teaching system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a connection block diagram of the working principle of the audio management system of the present invention.

[0024] The following is a further description of the implementation, functional features and advantages of the present invention with reference to the embodiments and accompanying drawings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1As shown, the audio system based on the Internet of Things technology includes: a digital audio processor 10, a teacher classroom terminal 20, a student classroom terminal 30, a teacher office terminal 40, a student home terminal 50, an audio system management terminal 60, a recording and broadcasting host 70, a microphone cluster 80, and a speaker 90; the digital audio processor 10 is used to amplify the audio signal and eliminate background noise, noise, and howling in the audio; the teacher classroom terminal 20 includes a teacher classroom terminal microphone 21; the student classroom terminal 30 includes a student classroom terminal microphone 31; the teacher office terminal 40 includes a teacher office terminal The student home terminal 50 includes a student home terminal microphone 51; the audio system management terminal 60 includes an audio system control interface 61 for setting and controlling the audio; the recording and broadcasting host 70 is used to record audio and video; the microphone cluster 80 is an omnidirectional microphone; the speaker 90 is used to play audio; specifically: the digital audio processor 10 is a remote audio pickup interactive audio processor with an intelligent audio algorithm, which is equipped with an AI voice noise reduction module, which cannot amplify the audio volume, and also has the function of eliminating background noise and noise in the audio signal; the teacher classroom terminal 20, the student classroom terminal Terminal 30, teacher office terminal 40, student home terminal 50, audio system management terminal 60; the teacher classroom terminal 20 and the student classroom terminal 30 are classroom equipment, the teacher classroom terminal microphone 21 is a microphone built into the teacher classroom terminal 20, and the student classroom terminal microphone 31 is a microphone built into the student classroom terminal 30; the teacher office terminal 40 is a device installed in the school but not in the classroom, generally a computer used by teachers, school staff, etc.; the teacher office terminal microphone 41 is a microphone built into the teacher office terminal 40; the student home terminal 50 is generally It is a device installed in the student's home; the student home terminal microphone 51 is a microphone built into the student home terminal 50; the microphone cluster 80 is specifically composed of multiple omnidirectional microphones, and the number is determined as needed; the omnidirectional microphone is a device that supports 360-degree all-round sound pickup, has precise sound search technology, and can collect surrounding sounds in all directions without dead ends, and then use voice enhancement and intelligent noise reduction algorithms to accurately "identify" and reduce noise, thereby highlighting the faint human voice at a longer distance, making the recording effect more natural, real and loud; the speaker 90 is used to play audio; the speaker 90 is also called a speaker.

[0028] like Figure 1 As shown, the microphone cluster 80 is connected to the digital audio processor 10; specifically, the microphone cluster 80 is directly electrically connected to the digital audio processor 10; in this way, the indoor voice can be input from the microphone cluster 80 to the digital audio processor 10 for processing.

[0029] like Figure 1As shown, the speaker 90 is connected to the digital audio processor 10; the audio signal processed by the digital audio processor 10 is output to the speaker 90 for playback.

[0030] like Figure 1 As shown, the digital audio processor 10 is connected to the recording and broadcasting host 70, and the digital audio processor 10 is connected to the network; the recording and broadcasting host 70 is connected to the network; specifically, the recording and broadcasting host 70 is also connected to a camera, the recording and broadcasting host 70 can record audio and video, and the audio signals in the video are all processed by the digital audio processor 10; the network is the Internet.

[0031] like Figure 1 As shown, the teacher classroom terminal 20, the student classroom terminal 30, the teacher office terminal 40, and the student home terminal 50 are connected to the network, that is, the teacher classroom terminal microphone 21, the student classroom terminal microphone 31, the teacher office terminal microphone 41, and the student home terminal microphone 51 are connected to the network; the audio system management terminal 60 is connected to the network.

[0032] like Figure 1 As shown, the teacher classroom terminal 20, the student classroom terminal 30, the teacher office terminal 40, and the student home terminal 50 are connected to the digital audio processor 10 through the network, that is, the teacher classroom terminal microphone 21, the student classroom terminal microphone 31, the teacher office terminal microphone 41, and the student home terminal microphone 51 are connected to the digital audio processor 10 through the network; the audio system management terminal 60 is also connected to the digital audio processor 10 through the network; the audio input by the teacher classroom terminal microphone 21, the student classroom terminal microphone 31, the teacher office terminal microphone 41, and the student home terminal microphone 51 passes through their respective devices, and then through the network, is input into the digital audio processor 10 for processing, and finally played from the speaker 90; the audio system control interface 61 is provided with functions such as setting audio message queue management, application configuration strategy, audio signal switching, and supporting IP intercom interaction.

[0033] like Figure 1 As shown, the digital audio processor 10 is provided with an AI voice noise reduction module; the AI ​​voice noise reduction module is a revolutionary voice processing technology, which can effectively reduce the interference of external noise, better capture people's voices, and thus improve the voice quality; this module adopts AI technology, can accurately identify human voices, effectively suppress noise and howling, can effectively reduce the interference of external noise, background noise, and echo, better capture people's voices, and improve the voice quality; it has an adaptive noise suppression function, which can automatically adjust the noise suppression level according to actual conditions, so that the voice maintains a more stable quality.

[0034] like Figure 1As shown, the AI ​​voice noise reduction module is used to suppress howling and eliminate background noise, noise and echo.

[0035] like Figure 1 As shown, the audio system based on Internet of Things technology can also be connected to multimedia terminals, such as mobile phones, tablet computers, laptops, etc.

[0036] The working process of this embodiment is as follows: this audio management system is installed in the classroom, that is, the teacher classroom terminal 20 and the student classroom terminal 30 are installed in the classroom or other indoors, and the number of the teacher classroom terminal 20 and the student classroom terminal 30 is determined as needed; the speakers 90 are installed on the wall of the classroom or other indoor locations, and the number is also determined as needed; the microphone cluster 80 is generally suspended on the ceiling of the classroom; the speakers 90 are installed on the wall of the classroom, and the number depends on the situation; the teacher's office terminal 40 is in the school, generally in the teacher's office; the student's home terminal 50 is installed in the student's home; the audio system management terminal 60 and the recording and broadcasting host 70 are generally installed in the computer room or other locations; the microphone cluster 80 is directly connected to the digital audio processor 10; The teacher's classroom terminal microphone 21, the student's classroom terminal microphone 31, the teacher's office terminal microphone 41, and the student's home terminal microphone 51 are connected to the digital audio processor 10 through the network; the speaker 90 is connected to the digital audio processor 10; the digital audio processor 10 is connected to the recording and broadcasting host 70; the microphone cluster 80 is connected to the digital audio processor 10; when in use, the voices of students and teachers in the classroom are input into the digital audio processor 10 through the microphone cluster 80, and can also be input into the digital audio processor 10 through the teacher's classroom terminal microphone 21 and the student's classroom terminal microphone 31. After the AI ​​voice noise reduction module of the digital audio processor 10 amplifies the volume and eliminates background noise and noise, it is played from the speaker 90; if the student For a teacher who is connected to the classroom online at home through the cloud school, the student's voice is input into the digital audio processor 10 through the student's home terminal microphone 51, through the network, and then through this audio system, and is played from the speaker 90 after similar processing; if a teacher or faculty member in the office is connected to the teacher in the classroom online, the teacher's voice in the office is input into the digital audio processor 10 through the teacher's office terminal microphone 41, through the network, and then through this audio system, and is played from the speaker 90 after similar processing; the recording and broadcasting host 70 can record audio and video, and the audio signals in the video are all processed by the digital audio processor 10 in the same way; the staff sets the audio message queue by operating the audio system control interface 61 of the audio system management terminal 60 Management, application configuration strategy, audio signal switching, support IP intercom interaction, etc.; the audio system control interface 61 can be used to control the on and off of each input end of the audio collector; the audio system control interface 61 can be used to control the volume of each input and output end of the audio collector; the audio system control interface 61 can be used to control the sound input and output of the online teaching system; this system solves the problem that the traditional microphone is directly connected to the speaker, resulting in the audio input from the microphone being directly output from the speaker, and then input from the microphone again, causing the audio to be continuously input and amplified in a cycle, constituting a noise problem, and also eliminating the background noise and noise of all terminal audio; this system organizes the audio of all devices together and manages it through the audio system management terminal, rather than an information island;This system can be used with online teaching systems and is open, can be connected to any network audio, and can be controlled and managed; this system can also be connected to multimedia terminals such as mobile phones, tablet computers, laptops, etc.;

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An audio system based on Internet of Things technology, characterized in that: The audio system includes: A digital audio processor (10), the digital audio processor (10) is used to amplify the audio signal and eliminate background noise, noise and howling in the audio; A teacher classroom terminal (20), wherein the teacher classroom terminal (20) comprises a teacher classroom terminal microphone (21); A student classroom terminal (30), wherein the student classroom terminal (30) comprises a student classroom terminal microphone (31); A teacher's office terminal (40), wherein the teacher's office terminal (40) comprises a teacher's office terminal microphone (41); A student home terminal (50), wherein the student home terminal (50) comprises a student home terminal microphone (51); An audio system management terminal (60), the audio system management terminal (60) comprising an audio system control interface (61) for setting and controlling audio; A recording and broadcasting host (70), wherein the recording and broadcasting host (70) is used to record audio and video; A microphone cluster (80), wherein the microphone cluster (80) is an omnidirectional microphone; A speaker (90), wherein the speaker (90) is used to play audio.

2. According to claim 1, an audio system based on Internet of Things technology is characterized in that: The microphone cluster (80) is connected to the digital audio processor (10).

3. According to claim 2, an audio system based on Internet of Things technology is characterized in that: The speaker (90) is connected to the digital audio processor (10).

4. According to claim 3, an audio system based on Internet of Things technology is characterized in that: The digital audio processor (10) is connected to a recording and broadcasting host (70), and the digital audio processor (10) is connected to a network; the recording and broadcasting host (70) is connected to a network.

5. The audio system based on Internet of Things technology according to claim 4, characterized in that: The teacher classroom terminal (20), the student classroom terminal (30), the teacher office terminal (40), and the student home terminal (50) are connected to the network, that is, the teacher classroom terminal microphone (21), the student classroom terminal microphone (31), the teacher office terminal microphone (41), and the student home terminal microphone (51) are connected to the network; the audio system management terminal (60) is connected to the network.

6. The audio system based on Internet of Things technology according to claim 5, characterized in that: The teacher classroom terminal (20), the student classroom terminal (30), the teacher office terminal (40), and the student home terminal (50) are connected to the digital audio processor (10) via a network, that is, the teacher classroom terminal microphone (21), the student classroom terminal microphone (31), the teacher office terminal microphone (41), and the student home terminal microphone (51) are connected to the digital audio processor (10) via a network; the audio system management terminal (60) is also connected to the digital audio processor (10) via a network.

7. The audio system based on Internet of Things technology according to claim 1, characterized in that: The digital audio processor (10) is provided with an AI voice noise reduction module.

8. The audio system based on Internet of Things technology according to claim 7, characterized in that: The AI ​​voice noise reduction module is used to suppress howling and eliminate background noise, noise and echo.

Images