Receiving equipment, electronic devices and wireless microphone devices

Abstract

The present application provides a receiving device, an electronic device, and a wireless microphone device. The receiving device includes: a WIFI module, including a first input terminal and a first output terminal, the first input terminal of the WIFI module being used to input voice signals; a first audio processing chip, including an input terminal and an output terminal, the input terminal of the first audio processing chip being connected to the first output terminal of the WIFI module; and a USB interface, including a first input terminal and a first output terminal, the input terminal of the USB interface being connected to the output terminal of the first audio processing chip, and the output terminal of the USB interface being used to connect to an electronic device. The receiving device uses the WIFI module to receive voice signals from the wireless microphone device, allowing the wireless microphone device and other wireless devices to operate in different frequency bands, thereby avoiding interference with the wireless microphone device caused by multiple wireless devices in the room, and thus enabling the receiving device to stably receive voice signals.

Description

Technical Field

[0001] The present application relates to the field of microphones, and in particular to a receiving device, an electronic device and a wireless microphone device. Background Art

[0002] With the rapid development of science and technology, wireless microphone device systems have been successfully developed. However, since there are usually multiple wireless devices in a room, interference is generated on the wireless microphone device, making it impossible for the receiving end of the wireless microphone device to stably receive voice signals.

[0003] Therefore, there is an urgent need for a wireless microphone device receiving end that can stably receive voice signals.

[0004] The above information disclosed in the background technology section is only used to enhance the understanding of the background technology of the technology described in this article. Therefore, the background technology may contain certain information that does not form the prior art known in this country to those skilled in the art. Summary of the Invention

[0005] The main purpose of this application is to provide a receiving device, an electronic device and a wireless microphone device to solve the problem in the prior art that multiple wireless devices in the room interfere with the wireless microphone device and the receiving end of the wireless microphone device cannot stably receive voice signals.

[0006] To achieve the above-mentioned objectives, according to one aspect of the present application, a receiving device is provided, comprising: a WIFI module, comprising a first input terminal and a first output terminal, the first input terminal of the WIFI module being used to input a voice signal; a first audio processing chip, comprising an input terminal and an output terminal, the input terminal of the first audio processing chip being connected to the first output terminal of the WIFI module, and the first audio processing chip being used to perform noise reduction on the voice signal; and a USB interface, comprising a first input terminal and a first output terminal, the input terminal of the USB interface being connected to the output terminal of the first audio processing chip, and the output terminal of the USB interface being used to connect to an electronic device.

[0007] Optionally, the USB interface further includes a second input terminal and a second output terminal, and the WIFI module further includes a second input terminal. The second input terminal of the USB interface is used to receive a callback signal, and the callback signal is a voice signal on the electronic device side after a predetermined time period from the time when the voice signal is input into the first input terminal of the WIFI module. The second output terminal of the USB interface is connected to the second input terminal of the WIFI module.

[0008] Optionally, the above-mentioned WIFI module also includes a second audio processing chip, the above-mentioned second audio processing chip includes an input end and an output end, the input end of the above-mentioned second audio processing chip is connected to the second input end of the above-mentioned WIFI module, and the output end of the above-mentioned second audio processing chip is connected to the input end of the above-mentioned first audio processing chip. The above-mentioned second audio processing chip is used to receive the callback signal.

[0009] Optionally, the WIFI module further includes a third input terminal, and the receiving device further includes: an audio input module, including an input terminal and an output terminal, the input terminal of the audio input module is used to input a callback signal, the callback signal is a voice signal emitted by the electronic device after a predetermined time period from the time the voice signal is input into the first input terminal of the WIFI module, and the output terminal of the audio input module is connected to the third input terminal of the WIFI module.

[0010] Optionally, the WIFI module is a 5G WIFI module.

[0011] Optionally, the USB interface is a USB 3.0 interface.

[0012] According to another aspect of the present application, an electronic device is provided, comprising any one of the above-mentioned receiving device and electronic device, wherein the above-mentioned electronic device is connected to the above-mentioned receiving device, the above-mentioned electronic device comprises a control chip and a speaker, the above-mentioned control chip comprises an input end and an output end, the input end of the above-mentioned control chip is used to receive a voice signal; and the output end of the above-mentioned control chip is connected to the above-mentioned speaker.

[0013] Optionally, the control chip is one of the following: SOC, MCU.

[0014] According to another aspect of the present application, a wireless microphone apparatus is provided, comprising a receiving device and a wireless microphone, wherein the receiving device is any one of the above-mentioned receiving devices.

[0015] Optionally, the wireless microphone includes a third audio processing chip, which is communicatively connected to the WIFI module in the receiving device. The third audio processing chip is used to receive the encoded echo signal sent by the WIFI module and the voice signal sent by the receiving device, and filter the voice signal and the echo signal using the least mean square algorithm to eliminate the echo in the echo signal.

[0016] Applying the technical solution of the present application, the above-mentioned receiving device includes a WIFI module, a first audio processing chip, and a USB interface, wherein the WIFI module includes a first input terminal and a first output terminal, and the first input terminal of the above-mentioned WIFI module is used to input voice signals; the first audio processing chip includes an input terminal and an output terminal, and the input terminal of the above-mentioned first audio processing chip is connected to the first output terminal of the above-mentioned WIFI module; the USB interface includes a first input terminal and a first output terminal, and the input terminal of the above-mentioned USB interface is connected to the output terminal of the above-mentioned first audio processing chip, and the output terminal of the above-mentioned USB interface is used to connect to an electronic device. The receiving device uses a WIFI module to receive voice signals from a wireless microphone device. Compared with the wireless microphone device in the prior art that uses Bluetooth to connect, the WIFI module enables the wireless microphone device and other wireless devices to operate in different frequency bands, thereby avoiding interference with the wireless microphone device caused by multiple wireless devices in the room, and thus the above-mentioned receiving device can stably receive voice signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0018] Figure 1 A schematic diagram of a device according to a typical embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of a device in a specific embodiment of the present application is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. WIFI module; 20. First audio processing chip; 30. USB interface; 40. Electronic device; 50. Audio input module; 60. Receiving device; 70. Control chip; 80. Speaker; 101. Second audio processing chip. DETAILED DESCRIPTION

[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element or intervening elements may be present. Moreover, in the specification and claims, when it is described that an element is "connected to" another element, the element may be "directly connected to" the other element or "connected to" the other element through a third element.

[0025] As introduced in the background technology, in the prior art, there are usually multiple wireless devices in the room that interfere with the wireless microphone device, making it impossible for the receiving end of the wireless microphone device to stably receive voice signals. In order to solve the above problem, this application proposes a receiving device, an electronic device and a wireless microphone device.

[0026] According to a typical embodiment of the present application, a receiving device is provided, including a WIFI module 10, a first audio processing chip 20 and a USB interface 30, such as Figure 1 The WIFI module 10 includes a first input terminal and a first output terminal. The first input terminal of the WIFI module 10 is used to input a voice signal. The first audio processing chip 20 includes an input terminal and an output terminal. The input terminal of the first audio processing chip 20 is connected to the first output terminal of the WIFI module. The first audio processing chip is used to reduce noise on the voice signal. The USB interface 30 includes a first input terminal and a first output terminal. The input terminal of the USB interface 30 is connected to the output terminal of the first audio processing chip 20. The output terminal of the USB interface 30 is used to connect to the electronic device 40.

[0027] The above-mentioned receiving device includes a WIFI module, a first audio processing chip, and a USB interface. The WIFI module includes a first input terminal and a first output terminal, and the first input terminal of the WIFI module is used to input voice signals; the first audio processing chip includes an input terminal and an output terminal, and the input terminal of the first audio processing chip is connected to the first output terminal of the WIFI module; the USB interface includes a first input terminal and a first output terminal, and the input terminal of the USB interface is connected to the output terminal of the first audio processing chip, and the output terminal of the USB interface is used to connect to an electronic device. This receiving device uses a WIFI module to receive voice signals from a wireless microphone. Compared with the wireless microphones in the prior art that use Bluetooth to connect, the WIFI module enables the wireless microphone and other wireless devices to operate on different frequency bands, thereby avoiding interference with the wireless microphone caused by multiple wireless devices in the room, and thus the above-mentioned receiving device can stably receive voice signals.

[0028] In a specific embodiment of the present application, the above-mentioned first audio processing chip is a sound card, which can process the voice signal, for example, convert the voice signal collected by the WIFI module from an analog signal to a digital signal, and can also perform noise reduction on the voice signal.

[0029] In another specific embodiment of the present application, the USB interface 30 further includes a second input terminal and a second output terminal, the WIFI module 10 further includes a second input terminal, the second input terminal of the USB interface 30 is connected to the second input terminal of the WIFI module, the callback signal is a voice signal on the electronic device 40 side after a predetermined period of time from the first input terminal of the WIFI module inputting the voice signal, the second output terminal of the USB interface 30 is connected to the second input terminal of the WIFI module 10, as shown in FIG. Figure 1 As shown, the WIFI module 10 is also used to eliminate the echo in the above-mentioned echo signal. In this embodiment, the USB interface inputs the received echo signal into the WIFI module, and the WIFI module can also be used to eliminate the echo in the echo signal, thereby making the voice signal on the electronic device side clearer.

[0030] Specifically, after the electronic device receives the voice signal, the speaker on the electronic device emits a sound, and then the WIFI module collects the signal, processes the echo signal, eliminates the echo in the echo signal, and then transmits the processed echo signal to the electronic device, and the electronic device emits a voice signal without echo.

[0031] In a specific embodiment of the present application, the predetermined time period is 1 second. In actual applications, the predetermined time period may also be other values. The shorter the predetermined time period is, the better the echo processing effect is.

[0032] In a specific embodiment of the present application, the WIFI module further includes a second audio processing chip 101, such as Figure 1 As shown, the second audio processing chip 101 includes an input and an output. The input of the second audio processing chip 101 is used to input the echo signal, and the output of the second audio processing chip 101 is connected to the input of the first audio processing chip 20. The second audio processing chip 101 is used to receive the echo signal. In this embodiment, the WiFi module also includes a second audio processing chip. The second audio processing chip collects the echo signal separately from the microphone voice signal to avoid mutual interference, thereby ensuring more accurate echo processing.

[0033] In a more specific embodiment of the present application, the second audio processing chip 101 decodes the received voice signal, and then encodes the recovered voice signal (recovered signal) and sends it to the third audio processing chip on the wireless microphone for echo cancellation. In addition, it also converts the digital signal into an analog signal and sends it out.

[0034] In another specific embodiment of the present application, the WIFI module further includes a third input terminal, and the receiving device further includes an audio input module 50, wherein the audio input module 50 includes an input terminal and an output terminal, such as Figure 1 As shown, the input end of the audio input module 50 is used to input a pickup signal. The pickup signal is a voice signal emitted by the electronic device 40 after a predetermined period of time from the time the voice signal is input to the first input end of the WIFI module 10. The output end of the audio input module 50 is connected to the third input end of the WIFI module 10. In this embodiment, the receiving device further includes an audio input module. When the terminal side cannot input the pickup signal to the WIFI module through the USB interface, the pickup signal on the terminal side can be directly input into the audio input module, and the audio input module then inputs the pickup signal into the WIFI module. In this way, when the terminal does not support USB transmission, the pickup signal can be input through the audio input module, so that the receiving device can adapt to more electronic devices, thereby making the output voice signal more accurate.

[0035] Specifically, the headphone jack on the electronic device side can be connected to the audio input module, the above-mentioned collected signal can be input into the audio input module, and the audio input module can then input the voice signal into the WIFI module.

[0036] In a specific embodiment of the present application, the Wi-Fi module is a 5G Wi-Fi module. In this embodiment, the Wi-Fi module operates in the 5 GHz frequency band. This further reduces the number of devices operating in the 5 GHz frequency band, thereby further reducing interference from other devices on the wireless microphone device. This allows the receiving device to receive voice signals more stably. In addition, the 5 GHz frequency band has a high transmission speed, which is conducive to improving the transmission speed of the signal.

[0037] Of course, in actual applications, the above-mentioned WIFI module is not limited to the 5G WIFI module, and can also be a WIFI module of other frequency bands. Those skilled in the art can choose according to actual conditions, such as a 4G WIFI module.

[0038] To ensure more stable signal reception by the receiving device, in another specific embodiment of the present application, the USB interface is a USB 3.0 interface. In this embodiment, the fast transmission rate of USB 3.0 can further increase the speed of signal transmission, allowing the voice signal to be transmitted to the electronic device more quickly and stably, thereby making the sound emitted by the electronic device more stable.

[0039] Likewise, in actual applications, the USB interface is not limited to a USB 3.0 interface, and may also be a USB 2.0 interface. Those skilled in the art may select one based on actual conditions.

[0040] A typical embodiment of the present application provides an electronic device comprising any of the aforementioned receiving devices and an electronic device. The electronic device is connected to the receiving device, and the electronic device comprises a control chip and a speaker. The control chip comprises an input terminal and an output terminal, wherein the input terminal of the control chip is used to receive voice signals, and the output terminal of the control chip is connected to the speaker.

[0041] The electronic device described above includes any of the aforementioned receiving devices and an electronic device, wherein the electronic device is connected to the receiving device, and the electronic device includes a control chip and a speaker, the control chip includes an input and an output, the input of the control chip is used to receive voice signals, and the output of the control chip is connected to the speaker. The receiving device includes a WIFI module, a first audio processing chip, and a USB interface, wherein the WIFI module includes a first input and a first output, the first input of the WIFI module is used to input voice signals; the first audio processing chip includes an input and an output, the input of the first audio processing chip is connected to the first output of the WIFI module; the USB interface includes a first input and a first output, the input of the USB interface is connected to the output of the first audio processing chip, and the output of the USB interface is used to connect to the electronic device. The receiving device uses a WIFI module to receive voice signals from a wireless microphone. Compared to conventional wireless microphone devices that use Bluetooth to connect, the WIFI module enables the wireless microphone device to operate on a different frequency band from other wireless devices, thereby avoiding interference with the wireless microphone device caused by multiple wireless devices in the room, and thus the receiving device can stably receive voice signals.

[0042] In order to output a more stable voice signal, in a specific embodiment of the present application, the control chip is one of the following: SOC, MCU. SOC is a system-on-chip.

[0043] Of course, in actual applications, the control chip may also be other chips, such as FPGA, and those skilled in the art may make a selection based on actual conditions.

[0044] A typical embodiment of the present application further provides a wireless microphone device, including a receiving device and a wireless microphone, wherein the receiving device is any of the above-mentioned receiving devices.

[0045] The above-mentioned wireless microphone device includes a receiving device and a wireless microphone, and the above-mentioned receiving device is any of the above-mentioned receiving devices. The above-mentioned receiving device includes a WIFI module, a first audio processing chip and a USB interface, wherein the WIFI module includes a first input end and a first output end, and the first input end of the above-mentioned WIFI module is used to input a voice signal; the first audio processing chip includes an input end and an output end, and the input end of the above-mentioned first audio processing chip is connected to the first output end of the above-mentioned WIFI module; the USB interface includes a first input end and a first output end, and the input end of the above-mentioned USB interface is connected to the output end of the above-mentioned first audio processing chip, and the output end of the above-mentioned USB interface is used to connect to an electronic device. The receiving device uses a WIFI module to receive the voice signal of the wireless microphone. Compared with the wireless microphone device in the prior art that uses Bluetooth to connect, the WIFI module enables the wireless microphone device and other wireless devices to operate on different frequency bands, thereby avoiding interference with the wireless microphone device caused by multiple wireless devices in the room, and thus the above-mentioned receiving device can stably receive voice signals.

[0046] In another embodiment of the present application, the wireless microphone includes a third audio processing chip, which is communicatively connected to the WIFI module in the receiving device. The wireless microphone includes a third audio processing chip, which is communicatively connected to the WIFI module in the receiving device. The third audio processing chip is used to receive the encoded echo signal sent by the WIFI module and the voice signal sent by the receiving device, and filter the voice signal and the echo signal using a least mean square algorithm to eliminate the echo in the echo signal. In this embodiment, echo cancellation is performed on the echo signal. Compared with performing echo processing only on the echo signal, more echoes can be filtered out, making the echo processing more accurate, thereby further improving the output voice quality.

[0047] A least mean square filter (LMS filter) is a type of adaptive filter that can modify the filter coefficients by minimizing the mean square value of an error signal, thereby simulating a desired ideal filter. The error signal used as the basis for correction is the difference between an ideal reference signal and an actual output signal. The ideal reference signal is equivalent to the speech signal in this embodiment, and the actual output signal is equivalent to the echo signal in this embodiment. By adjusting the filter, the echo processing effect is improved.

[0048] Of course, in actual applications, the echo cancellation method of the present application is not limited to the above method, and other methods may also be used. For example, other filters such as Wiener filters, filter banks, etc. may be used.

[0049] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the technical solution of the present application will be described in detail below with reference to specific embodiments and comparative examples.

[0050] Example

[0051] The electronic device in this embodiment, such as Figure 2 As shown, it includes a receiving device 60 and an electronic device 40, wherein the receiving device 60 includes a WIFI module 10, a first audio processing chip 20 and a USB interface 30, and the electronic device 40 includes a control chip 70 and a speaker 80. The USB interface 30 is a USB 3.0 interface, and the WIFI module 10 is a 5G WIFI module. The specific working method of the electronic device includes:

[0052] The WIFI module 10 receives the voice signal from the wireless microphone and then inputs the voice signal into the first audio processing chip 20. The first audio processing chip 20 performs noise reduction and digitization on the voice signal and transmits the processed voice signal to the first input end of the USB interface 30. The first output end of the USB interface 30 then transmits the voice signal to the control chip 70. The control chip 70 then inputs the voice signal into the speaker 80, and the speaker 80 emits a sound. The WIFI module 10 then collects the echo signal, which is the sound emitted by the speaker 80. The echo signal is input into the control chip 70 through the first audio processing chip 20 and the USB interface 30. The control chip 70 then inputs the echo signal into the WIFI module 10 through the USB interface 30. The WIFI module 10 performs echo processing based on the echo signal and the voice signal to eliminate the echo in the echo signal.

[0053] If the electronic device cannot transmit the echo signal via USB 3.0, the headphone jack on the side of the electronic device 40 can also be connected to the audio input module 50. The control chip 70 inputs the echo signal into the audio input module 50, and the audio input module 50 then inputs the echo signal into the WIFI module 10. The WIFI module 10 then performs echo processing, so that the receiving device 60 can adapt to more types of electronic devices 40.

[0054] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0055] 1) The receiving device of the present application includes: a WIFI module, a first audio processing chip and a USB interface. The WIFI module includes a first input terminal and a first output terminal, and the first input terminal of the WIFI module is used to input a voice signal; the first audio processing chip includes an input terminal and an output terminal, and the input terminal of the first audio processing chip is connected to the first output terminal of the WIFI module; the USB interface includes a first input terminal and a first output terminal, and the input terminal of the USB interface is connected to the output terminal of the first audio processing chip, and the output terminal of the USB interface is used to connect to an electronic device. The above-mentioned receiving device uses a WIFI module to receive the voice signal of the wireless microphone. Compared with the wireless microphone device in the prior art that uses Bluetooth to connect, the WIFI module enables the wireless microphone device and other wireless devices to operate in different frequency bands, thereby avoiding interference of multiple wireless devices in the room with the wireless microphone device, and thus the above-mentioned receiving device can stably receive voice signals.

[0056] 2) The electronic device of the present application comprises any one of the above-mentioned receiving devices and electronic devices, wherein the above-mentioned electronic device is connected to the above-mentioned receiving device, and the above-mentioned electronic device comprises a control chip and a speaker, and the above-mentioned control chip comprises an input terminal and an output terminal, and the input terminal of the above-mentioned control chip is used to receive voice signals; and the output terminal of the above-mentioned control chip is connected to the above-mentioned speaker. The above-mentioned receiving device comprises a WIFI module, a first audio processing chip and a USB interface, wherein the WIFI module comprises a first input terminal and a first output terminal, and the first input terminal of the above-mentioned WIFI module is used to input voice signals; the first audio processing chip comprises an input terminal and an output terminal, and the input terminal of the above-mentioned first audio processing chip is connected to the first output terminal of the above-mentioned WIFI module; the USB interface comprises a first input terminal and a first output terminal, and the input terminal of the above-mentioned USB interface is connected to the output terminal of the above-mentioned first audio processing chip, and the output terminal of the above-mentioned USB interface is used to connect to the electronic device. The above-mentioned receiving device uses a WIFI module to receive the voice signal of the wireless microphone. Compared with the wireless microphone device in the prior art that uses Bluetooth to connect, the WIFI module enables the wireless microphone device and other wireless devices to operate in different frequency bands, thereby avoiding interference with the wireless microphone device by multiple wireless devices in the room, and the above-mentioned receiving device can stably receive voice signals.

[0057] 3) The wireless microphone device of the present application includes a receiving device and a wireless microphone, and the receiving device is any of the above-mentioned receiving devices. The above-mentioned receiving device includes a WIFI module, a first audio processing chip and a USB interface, wherein the WIFI module includes a first input end and a first output end, and the first input end of the above-mentioned WIFI module is used to input a voice signal; the first audio processing chip includes an input end and an output end, and the input end of the above-mentioned first audio processing chip is connected to the first output end of the above-mentioned WIFI module; the USB interface includes a first input end and a first output end, and the input end of the above-mentioned USB interface is connected to the output end of the above-mentioned first audio processing chip, and the output end of the above-mentioned USB interface is used to connect to an electronic device. The receiving device uses a WIFI module to receive the voice signal of the wireless microphone. Compared with the wireless microphone device in the prior art that uses Bluetooth to connect, the WIFI module enables the wireless microphone device and other wireless devices to operate in different frequency bands, thereby avoiding interference of multiple wireless devices in the room with the wireless microphone device, and the above-mentioned receiving device can stably receive voice signals.

Claims

1. A receiving device, characterized in that: include: A WIFI module comprising a first input terminal and a first output terminal, wherein the first input terminal of the WIFI module is used to input a voice signal; The first audio processing chip includes an input terminal and an output terminal, wherein the input terminal of the first audio processing chip is connected to the The first output terminal of the WIFI module is connected, and the first audio processing chip is used to reduce noise of the voice signal; A USB interface, comprising a first input end and a first output end, wherein the input end of the USB interface is connected to the output end of the first audio processing chip, and the output end of the USB interface is used to connect to an electronic device; The USB interface further includes a second input end and a second output end, and the WIFI module further includes a second input end. The second input end of the USB interface is used to receive a pickup signal, wherein the pickup signal is a voice signal emitted by the electronic device after a predetermined period of time after the voice signal is input to the first input end of the WIFI module. The second output end of the USB interface is connected to the second input end of the WIFI module. The WIFI module also includes a second audio processing chip, which includes an input end and an output end. The input end of the second audio processing chip is connected to the second input end of the WIFI module, and the output end of the second audio processing chip is connected to the input end of the first audio processing chip. The second audio processing chip is used to receive the callback signal.

2. The receiving device according to claim 1, wherein The WIFI module further includes a third input terminal, and the receiving device further includes: The audio input module includes an input end and an output end. The input end of the audio input module is used to input a callback signal. The callback signal is a voice signal emitted by the electronic device after a predetermined period of time after the voice signal is input through the first input end of the WIFI module. The output end of the audio input module is connected to the third input end of the WIFI module.

3. The receiving device according to claim 1 or 2, characterized in that The USB interface is a USB 3.0 interface.

4. The receiving device according to any one of claims 1 or 3, characterized in that The WIFI module is a 5G WIFI module.

5. An electronic device, characterized in that: The electronic device comprises: The receiving device according to any one of claims 1 to 4; An electronic device is connected to the receiving device, the electronic device includes a control chip and a speaker, the control chip includes an input end and an output end, the input end of the control chip is used to receive a voice signal; the output end of the control chip is connected to the speaker.

6. The electronic device according to claim 5, wherein: The control chip is one of the following: SOC, MCU.

7. A wireless microphone device, comprising a receiving device and a wireless microphone, characterized in that: The receiving device is the receiving device according to any one of claims 1 to 4.

8. The wireless microphone device according to claim 7, wherein: The wireless microphone includes a third audio processing chip, which is communicatively connected to the WIFI module in the receiving device. The third audio processing chip is used to receive the encoded echo signal sent by the WIFI module and the voice signal sent by the receiving device, and filter the voice signal and the echo signal using the least mean square algorithm to eliminate the echo in the echo signal.

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