Method, device and system for detecting resonance of sound playing equipment

Abstract

The present application discloses a method for detecting resonance of a sound playback device, the method comprising: collecting a comprehensive signal generated by the device under test when the device under test plays a test audio; wherein the comprehensive signal includes a sound signal output by a sound output module of the device under test and a sound signal generated by vibration of the device under test; obtaining a signal difference between a back-collected signal and the comprehensive signal; wherein the back-collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test when the device under test plays the test audio and the sound input module of the device under test; and determining a resonance detection result of the device under test based on the signal difference. The method is used to improve the accuracy of resonance detection of a sound playback device.

Description

Technical Field

[0001] The present invention relates to the field of acoustics, and in particular to a method, device and system for detecting resonance of a sound playing device. Background Art

[0002] With technological advancements, audio playback devices have gradually become an integral part of people's lives. Resonance in audio playback devices occurs when a device vibrates at a specific frequency with a greater amplitude than at other frequencies. This resonance occurs when the frequency of the audio being played is the same as or similar to the device's own frequency. When a device resonates, it produces additional noise in addition to the audio. This noise can reduce the user experience and even affect the basic functionality of the device. For example, noise can affect the wake-up and recognition rates of smart speakers. Therefore, resonance testing is routinely performed on audio playback devices during the production process.

[0003] In existing technology, resonance detection for sound playback devices is typically performed manually by a technician. Specifically, the technician uses their hands to feel for significant vibrations and their ears to detect any noise. Because these two processes are subject to significant subjective factors, inconsistent detection standards lead to low accuracy. Consequently, existing techniques for resonance detection of sound playback devices suffer from low accuracy. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a method, apparatus, and system for detecting resonance of a sound playback device, so as to improve the accuracy of detecting resonance of a sound playback device.

[0005] In a first aspect, the present application provides a method for detecting resonance of a sound playback device, the method comprising:

[0006] When the device under test plays the test audio, collecting the comprehensive signal generated by the device under test; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test;

[0007] Obtaining a signal difference between a collected signal and the integrated signal; wherein the collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio;

[0008] A resonance detection result of the device under test is determined according to the signal difference.

[0009] In a possible implementation, collecting the integrated signal generated by the device under test when the device under test plays the test audio includes collecting the integrated signal generated by the device under test in the sound shielding device when the device under test plays the test audio in the sound shielding device.

[0010] In a possible implementation, before the device under test plays the test audio, the method further includes:

[0011] The transport device transports the device under test from outside the sound shielding device to a specific position inside the sound shielding device;

[0012] The device under test plays the test audio, including:

[0013] The device under test obtains a play instruction; wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device;

[0014] The device under test plays the test audio in response to the play instruction.

[0015] In a possible implementation, the device under test obtains a play instruction, wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device, including:

[0016] When the device under test detects that the device is located at a specific position within the sound shielding device, the device autonomously generates the play instruction;

[0017] or,

[0018] The control device generates the play instruction when detecting that the device under test is located at a specific position within the sound shielding device, and sends the play instruction to the device under test;

[0019] The device under test receives the play instruction.

[0020] In a possible implementation, obtaining the signal difference between the recovery signal and the integrated signal includes:

[0021] The characteristic values of the sampling signal and the integrated signal are extracted respectively; and the characteristic values of the sampling signal and the integrated signal are compared to obtain the signal difference.

[0022] In a second aspect, the present application provides a system for detecting resonance of a sound playback device, the system comprising at least one device to be tested, at least one sound shielding device, and a transmission device, wherein:

[0023] Each of the at least one device under test is configured to play a test audio in the sound shielding device;

[0024] When the device under test plays the test audio, collecting a comprehensive signal generated by the device under test in the sound shielding device; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by the vibration of the device under test;

[0025] When the device under test plays the test audio, a signal obtained by collecting the sound output by the sound output module of the device under test and collected by the sound input module of the device under test is obtained to obtain a sampling signal; and a signal difference between the sampling signal and the integrated signal is obtained, and a resonance detection result of the device under test is determined according to the signal difference;

[0026] The transmission device is used to carry and transmit the device under test, and transmit the device under test into the sound shielding device; and is used to transmit the device under test out of the sound shielding device after the device under test obtains the integrated signal.

[0027] In one possible implementation, the system includes at least one device under test, at least one sound shielding device, a transmission device, and a signal processing device, wherein:

[0028] Each of the at least one device under test is configured to play a test audio in the sound shielding device;

[0029] When the device under test plays the test audio, collecting a comprehensive signal generated by the device under test in the sound shielding device; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by the vibration of the device under test;

[0030] When the device under test plays the test audio, collecting a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test to obtain a sampling signal; and sending the sampling signal and the integrated signal to the signal processing device;

[0031] The transmission device is used to carry and transmit the device under test, and transmit the device under test to the sound shielding device; and is used to transmit the device under test out of the sound shielding device after the device under test receives the integrated signal;

[0032] The signal processing device is used to receive the sampling signal and the integrated signal of the device under test, obtain a signal difference between the sampling signal and the integrated signal, and determine a resonance detection result of the device under test based on the signal difference.

[0033] In a third aspect, the present application provides a device for detecting resonance of a sound playback device, the device comprising:

[0034] A sound collection module, configured to collect a comprehensive signal generated by the device under test when the device under test plays a test audio; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by vibration of the device under test;

[0035] A signal processing module is configured to obtain a signal difference between a collected signal and the integrated signal; wherein the collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio; and determine a resonance detection result of the device under test based on the signal difference.

[0036] In a fourth aspect, the present application provides an electronic device for detecting resonance of a sound playback device, the electronic device comprising a memory and a processor, wherein the memory stores code, and the processor is configured to call the code stored in the memory to implement the following functions:

[0037] When the device under test plays the test audio, collecting the comprehensive signal generated by the device under test; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test;

[0038] Obtaining a signal difference between a collected signal and the integrated signal; wherein the collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio;

[0039] A resonance detection result of the device under test is determined according to the signal difference.

[0040] In a fifth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, and the computer program is used to execute any of the above methods.

[0041] It can be seen that the embodiments of the present application have the beneficial effect of improving the accuracy of resonance detection of sound playback equipment.

[0042] In an embodiment of the present application, a comprehensive signal generated by the device under test is collected when the device under test plays test audio, the comprehensive signal including a sound signal output by a sound output module of the device under test and a sound signal generated by vibration of the device under test; a signal difference between a collected signal and the comprehensive signal is obtained, the collected signal being a signal obtained by collecting the sound input module of the device under test when the device under test plays the test audio by the sound output by the sound output module of the device under test; and a resonance detection result of the device under test is determined based on the signal difference.

[0043] When the device to be tested plays the test audio, the sound output by the sound output module of the device to be tested and the signal obtained by the sound input module of the device to be tested is the sampling signal, and the integrated signal is the signal obtained by collecting the sound output by the sound output module of the device to be tested and the sound generated by the vibration of the device to be tested. Therefore, the difference between the sampling signal and the integrated signal can reflect the information of the device vibration, thereby obtaining the device resonance detection result. Compared with the prior art, the method of using human hands to perceive vibration and human ears to distinguish device vibration noise, in the embodiment of the present application, the resonance detection result of the device to be tested is obtained by obtaining the sampling signal and the integrated signal, and the signal acquisition and the detection result obtained according to the signal difference can be completed by the device / device, which can realize the automation of detection. By reducing the participation of personnel in the test process, the phenomenon of inconsistent detection standards caused by personnel is reduced, thereby improving the accuracy of the resonance detection of the sound playing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a flow chart of a method for detecting resonance of a sound playback device provided in an embodiment of the present application;

[0045] FIG2( a ) is a schematic structural diagram of a system for detecting resonance of a sound playback device provided in an embodiment of the present application;

[0046] FIG2( b ) is a schematic structural diagram of a system for detecting resonance of a sound playback device provided by another embodiment of the present application;

[0047] FIG2( c ) is a schematic structural diagram of a system for detecting resonance of a sound playback device provided by another embodiment of the present application;

[0048] Figure 3 This is a structural diagram of a system for detecting resonance of a sound playback device provided by another embodiment of the present application;

[0049] Figure 4 1 is a schematic structural diagram of a device for detecting resonance of a sound playback device provided in an embodiment of the present application;

[0050] Figure 5It is a structural schematic diagram of an electronic device for detecting resonance of a sound playback device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] To facilitate understanding of the technical solution provided by the embodiment of the present application, a method and device for implementing sentence generalization based on semantics provided by the embodiment of the present application are described below with reference to the accompanying drawings.

[0052] Although the accompanying drawings show exemplary embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without making any creative contribution shall fall within the scope of protection of the present application.

[0053] In the claims and description and drawings of this application, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions.

[0054] In an embodiment of the present application, a comprehensive signal generated by the device under test is collected when the device under test plays a test audio, the comprehensive signal including the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test; a signal difference between a back-collected signal and the comprehensive signal is obtained, the back-collected signal being a signal obtained by collecting the sound input module of the device under test when the device under test plays the test audio; and a resonance detection result of the device under test is determined based on the signal difference. When the device under test plays the test audio, the sound output by the sound output module of the device under test and the signal obtained by collecting the sound input module of the device under test are the back-collected signal, while the comprehensive signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound generated by the vibration of the device under test. Therefore, the difference between the back-collected signal and the comprehensive signal can reflect the information of the device vibration, thereby obtaining the device resonance detection result. Compared with the existing technology, the method of using human hands to perceive vibration and human ears to distinguish equipment vibration noise, in the embodiment of the present application, the resonance detection result of the equipment to be tested is obtained by acquiring the collected signal and the integrated signal. The signal acquisition and the detection result obtained based on the signal difference can be completed by the equipment / device, which can realize the automation of detection. By reducing the participation of personnel in the test process, the phenomenon of inconsistent detection standards caused by personnel is reduced, thereby improving the accuracy of resonance detection of sound playback equipment.

[0055] See also Figure 1 , Figure 1 This is a flow chart of a method for detecting resonance of a sound playing device provided by an embodiment of the present application. Figure 1As shown, the method for detecting resonance of a sound playback device in an embodiment of the present application includes the following steps:

[0056] S101. When the device under test plays a test audio, collect a comprehensive signal generated by the device under test; wherein the comprehensive signal includes a sound signal output by a sound output module of the device under test and a sound signal generated by vibration of the device under test;

[0057] In S101, the purpose of collecting the comprehensive signal generated by the device under test is to obtain the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test. The audio to be tested is played by the device under test. The device under test is a sound playing device for resonance detection, and the sound playing device has the function of playing sound. The comprehensive signal is generated by the device under test when the device under test plays the test audio, including the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test. When the device under test plays the test audio, the sound signal output by the sound output module of the device under test (for example, it can be a speaker, loudspeaker, etc.) refers to the sound signal output by the sound output module of the device under test based on the test audio; in layman's terms, when the device under test only plays the test audio and there is no noise or other noise (environmental noise) generated by the vibration of the device under test, the sound output by the sound output module is the sound heard by the user. The sound signal generated by the vibration of the device under test refers to the sound signal generated by the vibration of the device under test itself when the device under test plays the test audio. When playing the sound, the device itself will vibrate, and when the device resonates, the amplitude of this vibration will increase significantly. In summary, the comprehensive signal can be understood as the sound signal emitted by the device under test as a whole when the device under test plays the test audio (not just the signal of the sound output by the sound output module such as a speaker). It can be understood that the above-mentioned speakers and loudspeakers are all examples of the sound output module. The embodiment of the present application does not specifically limit the sound output module, and the specific module of the sound output module does not affect the implementation of the embodiment of the present application.

[0058] S102, obtaining a signal difference between a collected signal and the integrated signal; wherein the collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio;

[0059] In S102, the signal difference between the echo signal and the integrated signal is obtained to obtain the sound signal generated by the vibration of the device. Both the echo signal and the integrated signal are generated by the device under test playing the test audio. The echo signal refers to the echo signal generated by the device under test when the device under test plays the test audio, and the echo signal can be obtained by the device under test. The echo signal is a reference signal obtained by the device under test when implementing echo cancellation. It is a signal obtained by collecting the sound output by the sound output module of the device under test by the sound input module of the device under test, which is equivalent to the sound signal output by the output module of the device under test. Since the integrated signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test; and the echo signal is equivalent to the sound signal output by the sound output module, the signal difference between the echo signal and the integrated signal is the sound signal generated by the vibration of the device under test when playing the test audio, which can reflect the relevant information of the vibration of the device under test when playing audio.

[0060] S103: Determine a resonance detection result of the device under test according to the signal difference.

[0061] In S103, since the signal difference is that the device under test vibrates to generate a sound signal when the test audio is played, and when the device under test has a resonance phenomenon, the increase in vibration amplitude will cause a change in the sound signal, based on this, the resonance detection result of the device under test can be determined.

[0062] Furthermore, in the embodiment S101 of the present application, the audio to be tested is audio used for resonance detection, which can be audio specifically used for resonance detection, or other audio that can be used for resonance detection; for different types of devices, the corresponding test audio can be the same or different; the test audio corresponding to the device to be tested can be pre-stored in the device to be tested, or the audio to be tested can be sent to the device to be tested through an external device when performing resonance detection, so that the device to be tested can play the audio to be tested, and the external device can pre-store test audio corresponding to different devices to be tested, and send the corresponding test audio according to different devices to be tested. In order to improve the accuracy of the test, the frequency range of the test audio corresponding to the device to be tested can include all the audio frequencies supported by the device to be tested. The purpose of this is to more completely test the audio frequencies that the device to be tested can support, and to avoid missing certain frequency ranges during the resonance detection process to a certain extent, thereby improving the accuracy of the detection. It can be understood that whether the test audio is set in the above manner does not affect the implementation of the embodiment of the present application.

[0063] Furthermore, in the embodiment S101 of the present application, when the device under test plays the test audio, collecting the comprehensive signal generated by the device under test may include: when the device under test plays the test audio in the sound shielding device, collecting the comprehensive signal generated by the device under test in the sound shielding device. When the device under test plays the test audio in the sound shielding device, collecting the comprehensive signal generated by the device under test in the sound shielding device, the effect is to collect less sound signals other than the comprehensive signal when collecting the comprehensive signal. There is usually ambient noise in the environment, and the effect of the sound shielding signal is to reduce the mutual propagation of sound between the two environments inside and outside the sound shielding device to a certain extent, and to form a state of relative shielding between the inside and outside of the sound shielding device to a certain extent, thereby improving the accuracy of detection. It can be understood that whether or not the sound shielding device is used does not affect the implementation of the embodiment of the present application.

[0064] Furthermore, in an embodiment of the present application, before the device under test plays the test audio, it may also include: a transmission device transmits the device under test from the outside of the sound shielding device to a specific position within the sound shielding device; the device under test plays the test audio, which may include: the device under test obtains a play instruction; wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device; the device under test plays the test audio in response to the play instruction.

[0065] The conveying device refers to a device capable of transporting a carried item. In this embodiment of the present application, the conveying device transports the device under test from outside the sound shielding device to a specific location within the sound shielding device. Typically, the conveying device can be automated, such as a conveying device on an assembly line. Therefore, the conveying device used to transport the device under test can improve the automation level of device resonance testing. When the device under test is transported to the specific location within the sound shielding device, a play instruction is generated. In response to the received play instruction, the device under test plays the test audio. The specific location within the sound shielding device can be a preset location and can be set based on actual conditions. For example, the specific location can be set at the bottom center of the sound shielding device to improve the sound shielding effect. The device under test's transport to the specific location within the sound shielding device can be considered a triggering event for the play instruction. Since the device under test plays the test audio in response to the play instruction, the device under test's transport to the specific location can also be considered a triggering event for playing the test audio. Setting the triggering condition for playing the test audio saves energy while performing the test. To improve test accuracy, the test is performed within the sound shielding device, and a playback instruction is generated when the device under test is transported to a specific location. This reduces the possibility of testing in inaccurate locations, such as playing the test audio outside the shielding box while testing. It is understood that whether or not the above steps are performed before the device under test plays the test audio does not affect the implementation of the embodiments of the present application.

[0066] Furthermore, the device under test obtains a play instruction, wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device, and may include: when the device under test detects that the device is located at a specific position within the sound shielding device, generating the play instruction; or, when the control device detects that the device under test is located at a specific position within the sound shielding device, generating the play instruction and sending the play instruction to the device under test; and the device under test receives the play instruction.

[0067] The embodiments of the present application provide two implementation methods for the device under test to obtain the play instruction, one of which is generated autonomously by the device under test, or generated by an external control device and then sent to the device under test. That is, the position of the device under test can be detected by the device under test itself or by the control device, and the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device, and the device under test receives the play instruction.

[0068] Having the device under test autonomously generate the play command can reduce the complexity of the entire test system and reduce the latency associated with the transmission process. The device under test can autonomously detect whether it is in the specific location and thereby generate the play command. In this case, the device under test is equipped with a detector for detecting its own location. It is understood that the device under test can also generate the play command through other means.

[0069] Having an external control device generate the play instruction can reduce the hardware requirements of the test device itself. A detector for detecting the position of the device under test can be set within the shielding device. When the device under test is detected to be in the specific position, the control device generates the play instruction by, for example, sending a detection signal to the control device. It is understood that the control device can also generate the play instruction by other means. It is understood that whether the device under test obtains the play instruction using the above-mentioned implementation method does not affect the implementation of the embodiments of the present application.

[0070] Furthermore, in the embodiment S102 of the present application, the acquisition signal is a signal obtained by acquiring the sound output by the sound output module of the device under test when the device under test plays the test audio. When the device under test plays the audio under test, the acquisition signal may be acquired by the device under test through a certain method. The present application example does not limit how to obtain the acquisition signal. For example, the device under test may obtain the acquisition signal through an acquisition circuit, or the device under test may obtain the acquisition signal through a functional chip, or other methods may be used to acquire the acquisition signal when playing the test audio. Nowadays, it is common for intelligent voice devices to have an acquisition function. The use of the acquisition signal can reduce the participation of other hardware / devices in the test process. The acquisition of the acquisition signal can be achieved by the device under test itself, reducing the complexity of the detection process and also reducing the complexity of the test system. It is understandable that the method in which the acquisition signal is obtained does not affect the implementation of the embodiment of the present application.

[0071] Furthermore, in the embodiment S102 of the present application, obtaining the signal difference between the recovered signal and the integrated signal may include: extracting characteristic values of the recovered signal and the integrated signal respectively; comparing the characteristic values of the recovered signal and the integrated signal to obtain the signal difference;

[0072] The characteristic values of the sampled signal and the integrated signal are extracted and compared to obtain the signal difference. The characteristic value can be a parameter that can characterize a signal or have signal characteristics. Because the characteristic value has signal characteristics, the characteristic value comparison result can effectively characterize the signal difference. Furthermore, the characteristic value can be extracted over the entire test audio interval, a specific frequency interval, or other processes that can obtain the signal difference. The characteristic value can be one or more discrete point values, or a statistic for a specific frequency interval, or other forms that can characterize signal characteristics. Because the device under test vibrates when playing sound, and when the device resonates, this vibration amplitude will significantly increase. This increase in device vibration amplitude may cause changes in the amplitude and / or frequency distribution of the sound signal. Therefore, the characteristic value can include at least one of signal strength and signal frequency distribution. Furthermore, to improve the efficiency of obtaining the signal difference, the signal difference can be obtained by subtracting signal strengths. For example, the signal difference is determined to be the result of subtracting the strength of the sampled signal from the strength of the integrated signal. The signal difference is the sound signal generated by the vibration of the device under test when the test audio is played. In order to obtain the information of device vibration, the sound signal generated by the vibration of the device under test is a relatively direct data that can be used. Especially when the ambient noise can be ignored, the signal difference is obtained by subtracting the above-mentioned signal strengths, which is a relatively efficient and direct means. Furthermore, the subtraction of the above-mentioned signal strengths can be for a certain frequency interval, or for the complete frequency interval of the test audio, or other methods that can obtain test results can be used. It can be understood that whether the above-mentioned method is used and which method is used to obtain the signal difference does not affect the implementation of the embodiments of the present application.

[0073] Furthermore, in S101 of the present embodiment, when the device under test plays the test audio, there is no restriction on the acquisition device that collects the comprehensive signal generated by the device under test. The present embodiment provides two implementation methods. First, the device under test can collect the comprehensive signal generated by the device under test itself. Since the back-collected signal is usually obtained by the device under test, when the device under test collects the comprehensive signal, the device under test is in a self-broadcasting and self-recording state during the test process, making the test process less dependent on external equipment and reducing the complexity of the test. Second, the comprehensive signal generated by the device under test can be collected by an external device. The external device is relative to the device under test, that is, the module for collecting the comprehensive signal is not on the device under test, which can reduce the hardware requirements of the test device itself for device testing. It is understandable that the collected comprehensive signal is used to ultimately obtain the signal difference, and the subsequent corresponding data transmission process may involve corresponding data transmission processes, which will not be detailed here. It is understandable that the specific device used to collect the comprehensive signal does not affect the implementation of the present embodiment.

[0074] See also Figures 2(a)-2(c) Figure 2(a) is a structural schematic diagram of a system for detecting resonance of a sound playback device provided in an embodiment of the present application, Figure 2(b) is a structural schematic diagram of a system for detecting resonance of a sound playback device provided in another embodiment of the present application, and Figure 2(c) is a structural schematic diagram of a system for detecting resonance of a sound playback device provided in another embodiment of the present application.

[0075] like Figures 2(a)-2(c) As shown, the system 200 for detecting resonance of a sound playback device according to an embodiment of the present application includes a transmission device 201, at least one device to be tested, and at least one sound shielding device. Figures 2(a)-2(c) In the example, the system 200 includes the device under test 202 and the device under test 203, and the system 200 includes the sound shielding device 204, the sound shielding device 205 and the sound shielding device 206. In actual applications, the system can also include one device under test, or more than two devices under test, and the system can also include one sound shielding device, two sound shielding devices or more than three sound shielding devices.

[0076] Each of the at least one device under test, such as the device under test 202, is configured to play a test audio in the sound shielding device; when the device under test 202 plays the test audio in the sound shielding device, a comprehensive signal generated by the device under test 202 in the sound shielding device is collected; wherein the comprehensive signal includes a sound signal output by a sound output module of the device under test 202 and a sound signal generated by vibration of the device under test 202; when the device under test plays the test audio, a signal obtained by collecting the sound output by the sound output module of the device under test 202 and the sound input module of the device under test 202 is collected to obtain a sampling signal; and a signal difference between the sampling signal and the comprehensive signal is obtained, and a resonance detection result of the device under test 202 is determined based on the signal difference; the device under test 203 is also configured to perform the same process as the device under test 202;

[0077] The transmission device 201 is used to carry and transmit the devices under test, such as the devices under test 202 and 203, and transmit the devices under test to the sound shielding device; and to transmit the devices under test out of the sound shielding device after the devices under test receive the integrated signal.

[0078] Typically, the echo signal is autonomously collected by the device under test while playing the test audio. Therefore, the echo signal has little correlation with the environment in which the device under test is located during the test audio playback. Therefore, the present embodiment does not limit the temporal order of obtaining the echo signal and the transmission device's transport of the device under test away from the sound shielding device.

[0079] In order to reduce the mutual influence between the at least one device under test, the transmitting device 201 may transmit the at least one device under test to the at least one sound shielding device respectively, so that there is at most one device under test in each sound shielding device.

[0080] like Figures 2(a)-2(c) As shown, the transport device 201 is used to carry and transport a device under test 202 and a device under test 203 . Figures 2(a)-2(c) This is a structural diagram of a system for detecting resonance of a sound playback device. Figures 2(a)-2(c)The system is in the following three states: before the transmission device 201 transmits the device under test to the sound shielding device, while the transmission device 201 transmits the device under test to the sound shielding device, and after the transmission device 201 transmits the device under test to the sound shielding device. In Figure 2(b), the example of transmission device 201 transmitting device under test 202 to sound shielding device 204 and device under test 203 to sound shielding device 205 is used. In actual applications, other implementations are possible.

[0081] Furthermore, the conveyor device may be a conveyor belt; the conveyor device may be a conveyor belt on an assembly line, or other device capable of conveying. If the conveyor device is a conveyor belt on an assembly line, the device under test can undergo other tests / processing before and after the resonance test, thereby automating the testing process using the conveyor belt on the assembly line. The conveyor belt on the assembly line can also simultaneously convey multiple devices under test into the sound shielding device, allowing for simultaneous testing of multiple devices under test, thereby improving testing efficiency.

[0082] Furthermore, the sound shielding box can be provided with two doors, corresponding to an entrance door and an exit door, so that the device to be tested can enter the sound shielding box from the entrance door and leave the sound shielding box from the exit door. Furthermore, the entrance door and the exit door are used to improve the process time. Multiple sound shielding boxes for testing the assembly line can be provided to improve the test speed. After the device to be tested enters the sound shielding box from the entrance door, the device to be tested can be fixed and the box door can be closed to achieve a relative shielding effect. It can be arranged that at the same time, a device to be tested is tested in the same sound shielding box. When the test is completed, the device leaves the sound shielding box through the exit door and flows to the next link. Furthermore, the sound shielding box can be combined with a conveyor belt to realize assembly line detection to improve the degree of automation of the detection. It can be understood that whether the sound shielding device is provided in the above manner does not affect the implementation of the embodiment of the present application.

[0083] See also Figure 3 , Figure 3 It is a structural diagram of a system for detecting resonance of a sound playback device provided in another embodiment of the present application.

[0084] The system 300 for detecting resonance of a sound playback device according to an embodiment of the present application includes at least one device under test, at least one sound shielding device, a transmission device, and a signal processing device. The system 300 includes a transmission device 301, at least one device under test, and at least one sound shielding device. Figure 3In the example, the system 300 includes a device under test 302 and a device under test 303, and the system 300 includes a sound shielding device 304, a sound shielding device 305, and a sound shielding device 306. In actual applications, the system may further include one device under test, or two or more devices under test, and the system may further include one sound shielding device, two sound shielding devices, or three or more sound shielding devices.

[0085] The system 300 further includes a signal processing device 307;

[0086] Each of the at least one device under test, such as the device under test 302, is configured to play a test audio in the sound shielding device; when the device under test 302 plays the test audio, collect a comprehensive signal generated by the device under test 302 in the sound shielding device; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test 302 and a sound signal generated by the vibration of the device under test 302; when the device under test 302 plays the test audio, collect a signal obtained by collecting the sound output by the sound output module of the device under test 302 and the sound input module of the device under test 302 to obtain a sampling signal; and send the sampling signal and the comprehensive signal to the signal processing device; the device under test 303 is also configured to perform the same process as the device under test 302;

[0087] The transmission device 301 is used to carry and transmit the device under test, such as the device under test 302 and the device under test 303, to transmit the device under test into the sound shielding device; and to transmit the device under test out of the sound shielding device after the device under test receives the integrated signal;

[0088] like Figure 3 As shown, the transport device 301 is used to carry and transport a device under test 302 and a device under test 303 . Figure 3 This is a structural diagram of a system for detecting resonance of a sound playback device. Figure 3 The system is in the following states: when the transmission device 301 transmits the device under test to the sound shielding device, the states before and after the transmission device 301 transmits the device under test to the sound shielding device are shown in the relevant parts of FIG2 . Figure 3 In the example, the transmitting device 301 transmits the device under test 302 to the sound shielding device 304 and transmits the device under test 303 to the sound shielding device 305. In actual application, there are other implementation methods.

[0089] The signal processing device 307 is used to receive the sampling signal and the integrated signal of the device under test 302 and the device under test 303, obtain the signal difference between the sampling signal and the integrated signal, and determine the resonance detection results of the device under test 302 and the device under test 303 based on the signal difference.

[0090] The signal processing device 307 is an external signal processing device for processing and / or analyzing the collected signal to determine the resonance detection result of the device under test. In the embodiment corresponding to FIG2 , the device under test performs the signal processing and / or analysis process to obtain the test result by itself, while Figure 3 In the corresponding embodiment, the resonance detection result is obtained by using an external signal processing device, which can reduce the hardware requirements of the test equipment itself.

[0091] See also Figure 4 , Figure 4 4 is a schematic structural diagram of a device for detecting resonance of a sound playback device provided in an embodiment of the present application. The device 400 includes:

[0092] The sound collection module 401 is used to collect the comprehensive signal generated by the device under test when the device under test plays the test audio; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test;

[0093] The signal processing module 402 obtains a signal difference between a collected signal and the integrated signal; wherein the collected signal is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio; and determines a resonance detection result of the device under test based on the signal difference.

[0094] The sound collection module 401 can be applied to the device under test; the signal processing module 402 can be applied to the device under test; the device 400 can be applied to the device under test. When the device 400 is applied to the device under test, the resonance detection process can be completed by the device under test, reducing the participation of other devices in the test process, reducing the complexity of the detection process and the complexity of the test system. The structure and function of each module in the device for resonance detection of the sound playback device in the embodiment of the present application, the connection relationship and signal transmission process between each module, and the technical effects that can be achieved have all been described above and will not be repeated here to avoid repetition. It can be understood that whether the sound collection module 401 and / or the signal processing module 402 are located on the device under test does not affect the implementation of the embodiment of the present application.

[0095] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of an electronic device for detecting resonance of a sound playing device provided by an embodiment of the present application. Figure 5 As shown, the electronic device 500 for resonance detection of a sound playing device in an embodiment of the present application includes a memory 501 and a processor 502, wherein the memory stores a code, and the processor is used to call the code stored in the memory to implement the following functions: when the device under test plays the test audio, the comprehensive signal generated by the device under test is collected; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test; the signal difference between the collected signal and the comprehensive signal is obtained; wherein the collected signal is the signal obtained by collecting the sound input module of the device under test when the device under test plays the test audio by the sound output module of the device under test; based on the signal difference, the resonance detection result of the device under test is determined. The technical effects that can be achieved by the above functions have been described above, and will not be repeated here to avoid repetition.

[0096] In an embodiment of the present application, a computer-readable storage medium is further provided, wherein the computer-readable storage medium is used to store a computer program, wherein the computer program is used to execute the method for detecting resonance of the above-mentioned sound playback device, and can achieve the same technical effect. To avoid repetition, it is not described here. Wherein, the computer-readable storage medium is such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. The above description of the disclosed embodiments enables professionals in this field to implement or use the present application. Various modifications to these embodiments will be obvious to professionals in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting resonance of a sound playing device, characterized in that: The method comprises: When the device under test plays the test audio, collecting the comprehensive signal generated by the device under test; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test; Obtain a signal difference between the echo signal and the integrated signal; obtain a sound signal generated by the vibration of the device under test based on the signal difference; wherein the echo signal is a reference signal obtained by the device under test when implementing echo cancellation, and is a signal obtained by collecting the sound output by the sound output module of the device under test by the sound input module of the device under test when the device under test plays the test audio. Both the echo signal and the integrated signal are generated by the device under test playing the test audio, and the signal difference between the echo signal and the integrated signal is the sound signal generated by the vibration of the device under test when playing the test audio, reflecting relevant information about the vibration of the device under test when playing the audio; A resonance detection result of the device under test is determined according to the signal difference.

2. The method according to claim 1, characterized in that The collecting of the comprehensive signal generated by the device under test when the device under test plays the test audio includes: When the device under test plays the test audio in the sound shielding device, the comprehensive signal generated by the device under test in the sound shielding device is collected.

3. The method according to claim 2, characterized in that Before the device under test plays the test audio, it also includes: The transport device transports the device under test from outside the sound shielding device to a specific position inside the sound shielding device; The device under test plays the test audio, including: The device under test obtains a play instruction; wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device; The device under test plays the test audio in response to the play instruction.

4. The method according to claim 3, characterized in that The device under test obtains a play instruction, wherein the play instruction is generated when it is detected that the device under test is located at a specific position within the sound shielding device, including: When the device under test detects that the device is located at a specific position within the sound shielding device, the device autonomously generates the play instruction; or, The control device generates the play instruction when detecting that the device under test is located at a specific position within the sound shielding device, and sends the play instruction to the device under test; The device under test receives the play instruction.

5. The method according to claim 1, wherein The obtaining of a signal difference between the recovery signal and the integrated signal comprises: extracting characteristic values of the recovery signal and the comprehensive signal respectively; The characteristic values of the recovery signal and the integrated signal are compared to obtain the signal difference.

6. A system for detecting resonance of a sound playing device, characterized in that: The system comprises at least one device under test, at least one sound shielding device and a transmission device, wherein: Each of the at least one device under test is configured to play a test audio in the sound shielding device; When the device under test plays the test audio, collecting a comprehensive signal generated by the device under test in the sound shielding device; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by the vibration of the device under test; When the device under test plays the test audio, a signal obtained by the sound output by the sound output module of the device under test and collected by the sound input module of the device under test is collected to obtain a sampling signal; and a signal difference between the sampling signal and the integrated signal is obtained; according to the signal difference, a sound signal generated by the vibration of the device under test is obtained, and according to the signal difference, a resonance detection result of the device under test is determined; wherein, the sampling signal is a reference signal obtained by the device under test when implementing echo cancellation, and is a signal obtained by the sound output by the sound output module of the device under test and collected by the sound input module of the device under test when the device under test plays the test audio. Both the sampling signal and the integrated signal are generated by the device under test playing the test audio, and the signal difference between the sampling signal and the integrated signal is the sound signal generated by the vibration of the device under test when playing the test audio, reflecting relevant information about the vibration of the device under test when playing the audio; The transmission device is used to carry and transmit the device under test, and transmit the device under test into the sound shielding device; and is used to transmit the device under test out of the sound shielding device after the device under test obtains the integrated signal.

7. A system for detecting resonance of a sound playing device, characterized in that: The system comprises at least one device under test, at least one sound shielding device, a transmission device and a signal processing device, wherein: Each of the at least one device under test is configured to play a test audio in the sound shielding device; When the device under test plays the test audio, collecting a comprehensive signal generated by the device under test in the sound shielding device; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by the vibration of the device under test; When the device under test plays the test audio, a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test is collected to obtain a sampling signal; and the sampling signal and the integrated signal are sent to the signal processing device; wherein the sampling signal is a reference signal obtained by the device under test when implementing echo cancellation, and is a signal obtained by collecting the sound output by the sound output module of the device under test and the sound input module of the device under test when the device under test plays the test audio, and the sampling signal and the integrated signal are both generated by the device under test playing the test audio; The transmission device is used to carry and transmit the device under test, and transmit the device under test to the sound shielding device; and is used to transmit the device under test out of the sound shielding device after the device under test receives the integrated signal; The signal processing device is used to receive the echo signal and the integrated signal of the device under test, and obtain a signal difference between the echo signal and the integrated signal; obtain a sound signal generated by the vibration of the device under test based on the signal difference, and determine a resonance detection result of the device under test based on the signal difference. The signal difference between the echo signal and the integrated signal is the sound signal generated by the vibration of the device under test when the test audio is played, reflecting relevant information about the vibration of the device under test when the audio is played.

8. A device for detecting resonance of a sound playing device, characterized in that: The device comprises: A sound collection module, configured to collect a comprehensive signal generated by the device under test when the device under test plays a test audio; wherein the comprehensive signal includes a sound signal output by the sound output module of the device under test and a sound signal generated by vibration of the device under test; A signal processing module is provided for obtaining a signal difference between the echo signal and the integrated signal; and obtaining a sound signal generated by the vibration of the device under test based on the signal difference; wherein the echo signal is a reference signal obtained by the device under test when implementing echo cancellation, and is a signal obtained by collecting the sound output by the sound output module of the device under test by the sound input module of the device under test when the device under test plays the test audio. Both the echo signal and the integrated signal are generated by the device under test playing the test audio; and a resonance detection result of the device under test is determined based on the signal difference, wherein the signal difference between the echo signal and the integrated signal is the sound signal generated by the vibration of the device under test when playing the test audio, reflecting relevant information about the vibration of the device under test when playing the audio.

9. An electronic device for detecting resonance of a sound playing device, characterized in that: The electronic device includes a memory and a processor, wherein the memory stores code, and the processor is configured to call the code stored in the memory to implement the following functions: When the device under test plays the test audio, collecting the comprehensive signal generated by the device under test; wherein the comprehensive signal includes the sound signal output by the sound output module of the device under test and the sound signal generated by the vibration of the device under test; Obtain a signal difference between the echo signal and the integrated signal; obtain a sound signal generated by the vibration of the device under test based on the signal difference; wherein the echo signal is a reference signal obtained by the device under test when implementing echo cancellation, and is a signal obtained by collecting the sound output by the sound output module of the device under test by the sound input module of the device under test when the device under test plays the test audio. Both the echo signal and the integrated signal are generated by the device under test playing the test audio, and the signal difference between the echo signal and the integrated signal is the sound signal generated by the vibration of the device under test when playing the test audio, reflecting relevant information about the vibration of the device under test when playing the audio; A resonance detection result of the device under test is determined according to the signal difference.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program, and the computer program is used to execute the method according to any one of claims 1 to 5.

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