Loudspeaker equipment and audio networking system

Abstract

The utility model relates to the technical field of audio processing, and provides loudspeaking equipment and an audio networking system. The loudspeaking equipment comprises a first communication module, a first audio processing unit and a loudspeaker; the first communication module is used for receiving a first audio data packet sent by the pickup equipment; the first audio processing unit comprises an audio decoding module and an audio mixing module, and the audio decoding module is used for decoding the first audio data packet into a first audio signal; the audio mixing module is used for receiving the first audio signal and a second audio signal output by the multimedia equipment, carrying out audio mixing processing on the first audio signal and the second audio signal, or selectively outputting one of the first audio signal and the second audio signal; and the loudspeaker is used for playing the audio signal output by the audio mixing module. The loudspeaker device can reduce broadcasting delay, can be used in combination with a multimedia system, realizes mixed sound playing, can be conveniently applied to multimedia teaching scenes, and ensures teaching effects.

Description

Technical Field

[0001] The utility model relates to the technical field of audio processing, in particular to a sound speaker and an audio networking system. Background Art

[0002] With the development of Internet technology and communication technology, self-media is becoming more and more developed, and there are more and more live broadcast and video lecture scenes. The requirements for wireless audio and video transmission are getting higher and higher. It is necessary not only to ensure high-quality video transmission, but also to ensure low latency in audio transmission. If the delay time is too large, the speech on the user side and the sound on the playback side cannot be synchronized, which will affect the audience's on-site audio-visual experience.

[0003] In actual applications, existing speaker devices are usually used in combination with sound pickup devices. After receiving the audio signal wirelessly sent by the sound pickup device, the speaker device directly uses a speaker to play the audio signal. Since the sound pickup device and the speaker device are mainly connected through Bluetooth protocol or WIFI protocol, there is a certain delay in the transmission of audio signals, which directly affects the playback effect of the speaker device. In addition, the speaker device cannot be integrated with the multimedia system, resulting in a poor application in multimedia lecture scenarios. Utility Model Content

[0004] The utility model provides a speaker device and an audio networking system, which are used to solve the problems that the existing speaker device has a delay in playing sound and cannot be integrated with a multimedia system.

[0005] In a first aspect, the utility model provides a sound speaker device, comprising:

[0006] A first communication module, used for receiving a first audio data packet sent by a sound collection device;

[0007] A first audio processing unit includes an audio decoding module and an audio mixing module, wherein the audio decoding module is used to decode the first audio data packet into a first audio signal; the audio mixing module is used to receive the first audio signal and a second audio signal output by the multimedia device, perform mixing processing on the first audio signal and the second audio signal, or selectively output one of the first audio signal and the second audio signal;

[0008] A loudspeaker is used to play the audio signal output by the audio mixing module.

[0009] According to a speaker device provided by the utility model, the first audio processing unit further includes: a first gain control module;

[0010] The audio mixing module is connected to the first gain control module, and the first gain control module is connected to the speaker;

[0011] The first gain control module is used to adjust the gain of the audio signal output by the audio mixing module to adjust the volume played by the speaker.

[0012] According to a sound speaker device provided by the utility model, the first audio processing unit further includes: an AI noise reduction module, and the AI ​​noise reduction module is configured with a sound recovery module;

[0013] The audio mixing module is connected to the speaker via the AI ​​noise reduction module;

[0014] The sound collection module is used to collect the sound signal played by the speaker; the AI ​​noise reduction module is used to eliminate background noise according to the audio signal output by the audio mixing module and the sound signal fed back by the sound collection module.

[0015] According to a speaker device provided by the utility model, the AI ​​noise reduction module includes an echo cancellation module and an AI recognition module;

[0016] The echo cancellation module is used to remove the echo in the audio signal output by the audio mixing module according to the sound signal fed back by the sound acquisition module;

[0017] The AI ​​recognition module is used to perform feature recognition on the audio signal output by the echo cancellation module, and output the recognized audio signal to the speaker.

[0018] According to a speaker device provided by the utility model, the first audio processing unit further includes: a first audio encoding module and a first data packet sending module;

[0019] The audio mixing module is connected to the first audio encoding module, the first audio encoding module is connected to the first data packet sending module, and the first data packet sending module is connected to the speaker;

[0020] The first audio encoding module is used to encode the audio signal output by the audio mixing module and output the second audio data packet to the first data packet sending module; the first data packet sending module is used to transmit the second audio data packet to the speaker.

[0021] In a second aspect, the utility model further provides an audio networking system, comprising: a sound pickup device and the above-mentioned sound speaker device;

[0022] The sound pickup device includes a sound pickup, a second audio processing unit and a second communication module;

[0023] The pickup is used to collect audio signals in a current pickup space, the second audio processing unit is used to package the audio signals into a first audio data packet, and the second communication module is used to send the first audio data packet to the first communication module.

[0024] According to an audio networking system provided by the utility model, the second audio processing unit includes a second audio encoding module and a second data packet sending module;

[0025] The pickup is connected to the second audio encoding module, the second audio encoding module is connected to the second data packet sending module, and the second data packet sending module is connected to the second communication module;

[0026] The second audio encoding module is used to package the audio signal according to a sampling time interval of 3-8ms; the second data packet sending module is used to send each of the first audio data packets in sequence according to a sending time interval of 0.5-2ms.

[0027] According to an audio networking system provided by the utility model, the second audio processing unit further includes a background noise elimination module;

[0028] The microphone is connected to the background noise elimination module, and the background noise elimination module is connected to the second audio encoding module;

[0029] The background noise elimination module is used to remove the background noise in the audio signal collected by the microphone.

[0030] According to an audio networking system provided by the utility model, the second audio processing unit further includes a sound collection module;

[0031] The microphone is connected to the sound collection module, and the sound collection module is connected to the background noise elimination module;

[0032] The sound collection module is used to collect the audio signal output by the microphone at a sampling rate greater than 44.1 kHz, and transmit the collected audio signal to the background noise elimination module.

[0033] According to an audio networking system provided by the utility model, the second audio processing unit further includes a howling suppression module;

[0034] The pickup is connected to the howling suppression module, and the howling suppression module is connected to the second audio encoding module;

[0035] The howling suppression module is used to remove the spatial reflection signal and the multipath superposition signal in the audio signal to suppress the howling sound generated by the sound pickup device during use.

[0036] According to an audio networking system provided by the utility model, the sound pickup device and the sound speaker device are respectively configured to be arranged opposite to each other;

[0037] Alternatively, there are multiple speaker devices, and one sound pickup device is arranged opposite to each of the multiple speaker devices.

[0038] According to an audio networking system provided by the utility model, the audio networking system further includes a multimedia device, and the multimedia device is connected to the audio mixing module in the speaker device.

[0039] The utility model provides a speaker device and an audio networking system, wherein a first communication module, a first audio processing unit and a speaker are configured for the speaker device, and a first audio data packet sent by the sound pickup device is received by the first communication module. This audio transmission method can be used to effectively reduce the information transmission delay existing in wireless transmission between the sound pickup device and the speaker device, and after the audio decoding module decodes the first audio data packet into a first audio signal, the audio mixing module can mix the first audio signal and the second audio signal output by the multimedia device to ensure that the speaker plays the mixed audio signal, and the audio mixing module can also selectively output one of the first audio signal and the second audio signal to ensure that the speaker plays the first audio signal or the second audio signal alone, thereby expanding the speaker playback scenario of the speaker device.

[0040] As can be seen from the above, the speaker device shown in the utility model can reduce the broadcast delay, and can be integrated with the multimedia system to achieve mixed playback, which is convenient for application in multimedia teaching scenarios to ensure the teaching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a control structure block diagram of the audio networking system provided by the utility model;

[0043] Figure 2 This is a control structure diagram of the AI ​​noise reduction module provided by the utility model;

[0044] Figure 3 It is a structural schematic diagram of a sound pickup device provided by the utility model for amplifying a plurality of sound-speaking devices through a network design;

[0045] Reference numerals:

[0046] 1. Speaker device; 11. First communication module; 12. First audio processing unit; 13. Speaker; 14. Sound acquisition module; 121. Audio decoding module; 122. Audio mixing module; 123. First gain control module; 124. AI noise reduction module; 1241. Echo cancellation module; 1242. AI recognition module; 125. First audio encoding module; 126. First data packet sending module;

[0047] 2. Sound pickup device; 21. Sound pickup; 22. Second audio processing unit; 221. Sound collection module; 222. Background noise elimination module; 223. Howling suppression module; 224. Second gain control module; 225. Second audio encoding module; 226. Second data packet sending module; 23. Second communication module;

[0048] 3. Multimedia equipment. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Combine the following Figure 1-Figure 2 , the speaker device and audio networking system provided by the embodiment of the utility model are described in detail through specific embodiments and their application scenarios.

[0051] In the first aspect, Figure 1 As shown, the utility model provides a sound speaker device 1, comprising:

[0052] The first communication module 11 is used to receive a first audio data packet sent by the sound receiving device 2 .

[0053] The first audio processing unit 12 includes an audio decoding module 121 and an audio mixing module 122. The audio decoding module 121 is used to decode the first audio data packet into a first audio signal; the audio mixing module 122 is used to receive the first audio signal and the second audio signal output by the multimedia device 3, mix the first audio signal and the second audio signal, or selectively output one of the first audio signal and the second audio signal.

[0054] The speaker 13 is used to play the audio signal output by the audio mixing module 122 .

[0055] It is understandable that the first communication module 11 is connected to the audio decoding module 121 , the audio decoding module 121 and the multimedia device 3 are respectively connected to the audio mixing module 122 , and the audio mixing module 122 is connected to the speaker 13 .

[0056] The first communication module 11 may be a 4G module or a 5G module known in the art, and is not specifically limited thereto.

[0057] For the first audio processing unit 12, the audio decoding module 121 can use an audio decoder or audio chip known in the art to decode the first audio data packet in a compressed state, so that the first audio data packet is converted into a first audio signal; the audio mixing module 122 can use a multi-channel mixer circuit known in the art, and the audio mixing module 122 can first convert the first audio signal and the second audio signal into the same audio format (for example, PCM format), and then mix the first audio signal and the second audio signal, or realize the output of one of the first audio signal and the second audio signal.

[0058] It should be pointed out here that the first audio processing unit 12 can also adopt an audio DSP module known in the art. The audio DSP module can use an audio decoding algorithm known in the art to decode the first audio data packet, and then use a mixing processing algorithm known in the art to mix the first audio signal and the second audio signal or perform audio separation processing, which is not described in detail here.

[0059] For the speaker device 1 shown in the utility model, by configuring the first communication module 11, the first audio processing unit 12 and the speaker 13, the first communication module 11 receives the first audio data packet sent by the sound pickup device 2, and this audio transmission method can be used to effectively reduce the information transmission delay existing in the wireless transmission between the sound pickup device 2 and the speaker device 1, and after the audio decoding module 121 decodes the first audio data packet into a first audio signal, the audio mixing module 122 can mix the first audio signal and the second audio signal output by the multimedia device 3 to ensure that the speaker 13 plays the mixed audio signal, and the audio mixing module 122 can also selectively output one of the first audio signal and the second audio signal to ensure that the speaker 13 plays the first audio signal or the second audio signal alone, thereby expanding the speaker playback scenario of the speaker device 1.

[0060] As can be seen from the above, the speaker device 1 shown in the utility model can reduce the broadcast delay, and can be integrated with the multimedia system to achieve mixed playback, which is convenient for application in multimedia teaching scenes to ensure the teaching effect.

[0061] In some embodiments, Figure 1 As shown, the first audio processing unit 12 further includes: a first gain control module 123 .

[0062] The audio mixing module 122 is connected to the first gain control module 123 , and the first gain control module 123 is connected to the speaker 13 .

[0063] The first gain control module 123 is used to control the gain of the audio signal output by the audio mixing module 122 to adjust the volume played by the speaker 13 .

[0064] Among them, the first gain control module 123 can adopt an audio amplifier circuit built based on an operational amplifier, and can set the gain of the audio signal output by the audio mixing module 122 according to actual needs to ensure that the sound played by the speaker 13 can reach the actual required volume value.

[0065] In some embodiments, Figure 1 As shown, the first audio processing unit 12 further includes: an AI noise reduction module 124 , and the AI ​​noise reduction module 124 is configured with a sound recovery module 14 .

[0066] The audio mixing module 122 is connected to the speaker 13 via the AI ​​noise reduction module 124 .

[0067] The sound collection module 14 is used to collect the sound signal played by the speaker 13; the AI ​​noise reduction module 124 is used to eliminate the background noise according to the audio signal output by the audio mixing module 122 and the sound signal fed back by the sound collection module 14.

[0068] Specifically, the audio mixing module 122 is connected to the first gain control module 123 , the first gain control module 123 is connected to the AI ​​noise reduction module 124 , and the AI ​​noise reduction module 124 is connected to the speaker 13 .

[0069] The sound collection module 14 can adopt a microphone collection circuit known in the art. The microphone collection circuit includes a microphone, an ADC module and an audio processing module. The microphone is used to collect the sound signal played by the speaker 13. The ADC module is used to perform analog-to-digital conversion on the sound signal collected by the microphone to obtain a sound digital signal. The audio processing module is used to process the sound digital signal and transmit the processed signal to the AI ​​noise reduction module 124.

[0070] Of course, the sound collection module 14 can also use a resistor-capacitor network to collect the output signal of the speaker 13 , and the resistor-capacitor network attenuates the output signal of the speaker 13 and then transmits it to the AI ​​noise reduction module 124 .

[0071] The AI ​​noise reduction module 124 can use an AI noise reduction chip known in the art to process the audio signal output by the audio mixing module 122 and the sound signal collected by the sound collection module 14 to eliminate background noise to output a pure audio signal and avoid interference from howling and background noise that may affect the audio quality played by the speaker 13.

[0072] Furthermore, if Figure 2 As shown, the AI ​​noise reduction module 124 includes an echo cancellation module 1241 and an AI recognition module 1242 .

[0073] The echo cancellation module 1241 is used to remove the echo in the audio signal output by the audio mixing module 122 according to the sound signal fed back by the sound acquisition module 14 .

[0074] The AI ​​recognition module 1242 is used to perform feature recognition on the audio signal output by the echo cancellation module 1241 , and output the recognized audio signal to the speaker 13 .

[0075] It is understandable that the echo cancellation module 1241 is used to actively eliminate the echo in the audio signal output by the audio mixing module 122 based on the sound signal fed back by the sound acquisition module 14. The echo cancellation module 1241 may be provided with an adaptive filter known in the art to process the echo in the audio signal output by the audio mixing module 122 based on the adaptive filter, thereby achieving the purpose of echo cancellation.

[0076] At the same time, the AI ​​recognition module 1242 of this embodiment can adopt an AI chip known in the art, and can set a speech recognition model obtained through convolutional neural network training known in the art based on the AI ​​chip, so that the AI ​​recognition module 1242 can perform feature recognition on the effective part of the audio signal output by the echo cancellation module 1241, and output the recognized audio signal to the speaker 13, ensuring that even if the speaker is in a harsh noise environment, the audience on the scene can clearly recognize the sound emitted by the speaker 13.

[0077] In some embodiments, Figure 1 As shown, the first audio processing unit 12 further includes: a first audio encoding module 125 and a first data packet sending module 126 .

[0078] The audio mixing module 122 is connected to the first audio encoding module 125 , the first audio encoding module 125 is connected to the first data packet sending module 126 , and the first data packet sending module 126 is connected to the speaker 13 .

[0079] Specifically, the first audio encoding module 125 is used to encode the audio signal output by the audio mixing module 122 and output the second audio data packet to the first data packet sending module 126; the first data packet sending module 126 is used to transmit the second audio data packet to the speaker 13.

[0080] Among them, the first audio encoding module 125 can use an audio encoder known in the art, and the audio encoder adds a file header and a data packet type to the audio signal output by the audio mixing module 122 and uses some signal encoding methods to realize audio signal packaging processing.

[0081] The first data packet sending module 126 can use a data transmission chip known in the art to transmit the second audio data packet output by the first audio encoding module 125 to the speaker 13 at a preset rate at high speed to ensure the sound playing effect of the speaker 13.

[0082] In the second aspect, Figure 1 As shown, an embodiment of the utility model further provides an audio networking system, comprising: a sound pickup device 2 and the sound speaker device 1 as described above.

[0083] The sound pickup device 2 includes a sound pickup 21 , a second audio processing unit 22 , and a second communication module 23 .

[0084] The microphone 21 is used to collect audio signals in the current pickup space, the second audio processing unit 22 is used to package the audio signals into first audio data packets, and the second communication module 23 is used to send the first audio data packets to the first communication module 11 .

[0085] It is understandable that the sound pickup device 2 may be a microphone, and one or more pickups 21 corresponding to the sound pickup device 2 may be provided, and the pickup 21 is used to collect 20Hz-20kHz audio signals in the current pickup space. The current pickup space may be considered as a spherical space with the pickup 21 as the center and a preset length as the radius.

[0086] The sound-speaking device 1 may be a speaker arranged in the space where the sound-collecting device 2 is located, and one or more sound-speaking devices 1 may be configured.

[0087] The types of the first communication module 11 and the second communication module 23 are adapted, and the first communication module 11 and the second communication module 23 negotiate to form a network to achieve wireless transmission of the first audio data packet.

[0088] In the application scenario of multimedia lectures, the lecturer can walk in the conference room and hold the sound pickup device 2. The multimedia device 3 is placed on the podium of the conference room. The speaker device 1 is arranged on the podium or other areas of the conference room, and the audio mixing module 122 of the speaker device 1 is communicatively connected with the multimedia device 3.

[0089] When a lecturer is giving a lecture in a conference room, the audio signal collected by the microphone 21 may be a voice signal emitted by the lecturer. The second audio processing unit 22 packages the voice signal into a first audio data packet. The second communication module 23 sends the first audio data packet to the first communication module 11. The first communication module 11 transmits the received first audio data packet to the audio decoding module 121, and the audio decoding module 121 decodes the first audio data packet into a first audio signal. The audio mixing module 122 mixes the first audio signal and the second audio signal output by the multimedia device 3, so that the speaker 13 can play the mixed audio signal.

[0090] Among them, since the audio networking system includes the speaker device 1, the specific structure of the speaker device 1 refers to the above embodiment, and the audio networking system of this embodiment includes all the technical solutions of the above embodiment, and therefore has at least all the beneficial effects achieved by all the technical solutions of the above embodiment, which will not be repeated here one by one.

[0091] In some embodiments, Figure 1 As shown, the second audio processing unit 22 includes a second audio encoding module 225 and a second data packet sending module 226 .

[0092] The microphone 21 is connected to the second audio encoding module 225 , the second audio encoding module 225 is connected to the second data packet sending module 226 , and the second data packet sending module 226 is connected to the second communication module 23 .

[0093] The second audio encoding module 225 is used to package the audio signal according to a sampling time interval of 3-8 ms; wherein the sampling time interval can be specifically set to 3 ms, 5 ms, 8 ms, etc., and there is no specific limitation on this.

[0094] The second data packet sending module 226 is used to send each first audio data packet in sequence according to a sending time interval of 0.5-2ms, wherein the sending time interval can be specifically set to 0.5ms, 1ms, 2ms, etc., which is not specifically limited.

[0095] Based on the above settings, this embodiment can control the audio transmission delay of the sound pickup device 2 to 4-9ms, the audio transmission delay of the speaker device 1 to 5ms-10ms, and the audio transmission delay of the entire audio networking system to within 20ms.

[0096] In some embodiments, Figure 1 As shown, the second audio processing unit 22 further includes a background noise elimination module 222 .

[0097] The microphone 21 is connected to the background noise elimination module 222 , and the background noise elimination module 222 is connected to the second audio encoding module 225 .

[0098] The background noise elimination module 222 is used to remove the background noise in the audio signal collected by the microphone 21 .

[0099] It is understandable that this embodiment can adopt a background noise elimination circuit known in the art, for example, the background noise elimination circuit disclosed in the background noise elimination device with publication number CN2373953. The background noise elimination circuit can process the audio signal collected by the microphone 21 to achieve the purpose of eliminating the background noise in the audio signal.

[0100] When multiple microphones 21 are provided, the multiple microphones 21 are provided in an array and are respectively connected to the background noise elimination module 222. At this time, the background noise elimination module 222 can adopt an AI chip known in the art. The background noise elimination module 222 can eliminate the background noise in the audio signal according to the phase difference of the audio signals collected by different microphones 21 through an AI algorithm.

[0101] In some embodiments, Figure 1 As shown, in order to ensure that the sound pickup device 2 can clearly collect the voice signal of the speaker through the microphone 21 , the second audio processing unit 22 is further configured with a sound collection module 221 .

[0102] The microphone 21 is connected to a sound collection module 221, and the sound collection module 221 is connected to a background noise elimination module 222. The sound collection module 221 is used to collect the audio signal output by the microphone 21 at a sampling rate greater than 44.1kHz, and transmit the collected audio signal to the background noise elimination module 222.

[0103] The sound collection module 221 may use a differential sampling circuit known in the art. Since the microphone 21 is mainly used to pick up the speech of the lecturer, the sound collection module 221 may collect the audio signal output by the microphone 21 at a sampling rate of 44.1kHz or 48kHz.

[0104] In some embodiments, Figure 1 As shown, the second audio processing unit 22 further includes a howling suppression module 223 .

[0105] The microphone 21 is connected to the howling suppression module 223 , and the howling suppression module 223 is connected to the second audio encoding module 225 .

[0106] The howling suppression module 223 is used to remove the spatial reflection signal and the multipath superposition signal in the audio signal to suppress the howling sound generated by the sound pickup device 2 during use.

[0107] Specifically, the microphone 21 is connected to the sound collection module 221, the sound collection module 221 is connected to the background noise elimination module 222, the background noise elimination module 222 is connected to the howling suppression module 223, the howling suppression module 223 is connected to the second gain control module 224, and the second gain control module 224 is connected to the second audio encoding module 225.

[0108] The howling suppression module 223 can adopt the howling suppression circuit shown in publication number CN104703094A or publication number CN213402942U; the howling suppression module 223 can also adopt an AI chip known in the art. The AI ​​chip can process the audio signal output by the background noise elimination module 222 through an AI algorithm to remove the spatial reflection signal and the multipath superposition signal in the audio signal, thereby achieving the purpose of removing the howling sound generated by the pickup device 2 during use.

[0109] Among them, the second gain control module 224 can adopt an operational amplifier circuit constructed by an operational amplifier known in the art. The second gain control module 224 can automatically adjust the gain according to the size and distance of the audio signal to ensure that the amplitude of the output signal remains consistent.

[0110] In some embodiments, Figure 1 As shown, the sound pickup device 2 and the sound speaker device 1 are respectively configured to be arranged opposite to each other.

[0111] In some embodiments, Figure 3 As shown, there are multiple speaker devices 1, and one sound pickup device 2 is respectively arranged opposite to the multiple speaker devices 1 to construct an audio networking system.

[0112] Among them, Figure 3 In the figure, there are multiple speaker devices 1, and the multiple speaker devices 1 are sequentially labeled as a first speaker device, a second speaker device, a third speaker device, ..., an Nth speaker device, where N is a natural number greater than or equal to 2.

[0113] In some embodiments, Figure 1 As shown, the audio networking system further includes a multimedia device 3, which is connected to the audio mixing module 122 in the speaker device 1.

[0114] Among them, the multimedia device 3 can be an educational large screen or a smart blackboard large screen known in the art.

[0115] In this way, based on the audio networking system built in this embodiment, in the multimedia lecture scene application scenario, the speaker device 1 can simultaneously play the lecturer's voice information and the audio information played by the multimedia device 3 for mixed output. The audience present can hear these two voice information at the same time and can clearly identify them, ensuring the multimedia lecture effect.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, 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 various embodiments of the utility model.

Claims

1. A sound-speaking device, characterized in that: include: A first communication module, used for receiving a first audio data packet sent by a sound receiving device; A first audio processing unit includes an audio decoding module and an audio mixing module, wherein the audio decoding module is used to decode the first audio data packet into a first audio signal; the audio mixing module is used to receive the first audio signal and a second audio signal output by the multimedia device, perform mixing processing on the first audio signal and the second audio signal, or selectively output one of the first audio signal and the second audio signal; A loudspeaker is used to play the audio signal output by the audio mixing module.

2. The speaker device according to claim 1, characterized in that: The first audio processing unit further includes: a first gain control module; The audio mixing module is connected to the first gain control module, and the first gain control module is connected to the speaker; The first gain control module is used to adjust the gain of the audio signal output by the audio mixing module to adjust the volume played by the speaker.

3. The speaker device according to claim 1, characterized in that: The first audio processing unit further includes: an AI noise reduction module, wherein the AI ​​noise reduction module is configured with a sound recovery module; The audio mixing module is connected to the speaker via the AI ​​noise reduction module; The sound collection module is used to collect the sound signal played by the speaker; the AI ​​noise reduction module is used to eliminate background noise according to the audio signal output by the audio mixing module and the sound signal fed back by the sound collection module.

4. The speaker device according to claim 3, characterized in that: The AI ​​noise reduction module includes an echo cancellation module and an AI recognition module; The echo cancellation module is used to remove the echo in the audio signal output by the audio mixing module according to the sound signal fed back by the sound acquisition module; The AI ​​recognition module is used to perform feature recognition on the audio signal output by the echo cancellation module, and output the recognized audio signal to the speaker.

5. The speaker device according to claim 1, characterized in that: The first audio processing unit further includes: a first audio encoding module and a first data packet sending module; The audio mixing module is connected to the first audio encoding module, the first audio encoding module is connected to the first data packet sending module, and the first data packet sending module is connected to the speaker; The first audio encoding module is used to encode the audio signal output by the audio mixing module and output the second audio data packet to the first data packet sending module; the first data packet sending module is used to transmit the second audio data packet to the speaker.

6. An audio networking system, characterized in that: include: A sound pickup device and a sound speaker device as claimed in any one of claims 1 to 5; The sound pickup device includes a sound pickup, a second audio processing unit and a second communication module; The pickup is used to collect audio signals in a current pickup space, the second audio processing unit is used to package the audio signals into a first audio data packet, and the second communication module is used to send the first audio data packet to the first communication module.

7. The audio networking system according to claim 6, characterized in that: The second audio processing unit includes a second audio encoding module and a second data packet sending module; The pickup is connected to the second audio encoding module, the second audio encoding module is connected to the second data packet sending module, and the second data packet sending module is connected to the second communication module; The second audio encoding module is used to package the audio signal according to a sampling time interval of 3-8ms; the second data packet sending module is used to send each of the first audio data packets in sequence according to a sending time interval of 0.5-2ms.

8. The audio networking system according to claim 7, characterized in that: The second audio processing unit also includes a background noise elimination module; The microphone is connected to the background noise elimination module, and the background noise elimination module is connected to the second audio encoding module; The background noise elimination module is used to remove the background noise in the audio signal collected by the microphone.

9. The audio networking system according to claim 8, characterized in that: The second audio processing unit also includes a sound collection module; The microphone is connected to the sound collection module, and the sound collection module is connected to the background noise elimination module; The sound collection module is used to collect the audio signal output by the microphone at a sampling rate greater than 44.1 kHz, and transmit the collected audio signal to the background noise elimination module.

10. The audio networking system according to claim 7, characterized in that: The second audio processing unit further includes a howling suppression module; The pickup is connected to the howling suppression module, and the howling suppression module is connected to the second audio encoding module; The howling suppression module is used to remove the spatial reflection signal and the multipath superposition signal in the audio signal to suppress the howling sound generated by the sound pickup device during use.

11. The audio networking system according to claim 6, characterized in that: The sound pickup device and the sound speaker device are respectively configured to be arranged opposite to each other; Alternatively, there are multiple speaker devices, and one sound pickup device is arranged opposite to each of the multiple speaker devices.

12. The audio networking system according to any one of claims 6 to 11, characterized in that: The audio networking system also includes a multimedia device, and the multimedia device is connected to the audio mixing module in the speaker device.

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