Sound source positioning test method

Abstract

The invention belongs to the technical field of sound source localization, and particularly relates to a sound source localization testing method, which comprises the following steps of: adjusting the angle of a sound source relative to a preset position of tested equipment to an initial angle; according to a sound signal acquired by an audio acquisition module of the tested equipment, determining the orientation of a sound source emitting the sound signal; identifying a portrait in image information according to the image information acquired by an image acquisition module of the tested equipment at the azimuth; determining angle data of the sound source relative to a preset position according to the orientation and the portrait; comparing the angle data with the actual angle of the sound source relative to the preset position, and outputting a comparison result; and adjusting the angle of the sound source relative to the preset position, and repeatedly executing the step of determining the orientation of the sound source emitting the sound signal according to the sound signal acquired by the audio acquisition module of the tested equipment to the step of adjusting the angle of the sound source relative to the preset position. The method is low in testing environment requirement and simple in operation mode, and the testing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sound source localization, and in particular relates to a sound source localization test method. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] In the process of audio and video equipment testing and calibration, sound source localization test is a crucial part. Sound source localization test refers to the accuracy of sound source localization of audio and video equipment through testing experiments to ensure that audio and video equipment can accurately detect the sound source position at different positions and angles.

[0004] In the related art, the sound source localization test method adopts the point-circling measurement method, which requires setting up a series of test points in the test area, adjusting the position and angle of the sound source, and determining the position of the sound source according to the response of the device under test at different angles and positions. However, the test environment of this method is complex to set up, which consumes a lot of time and manpower, and the detection accuracy is limited by the level of the tester. Summary of the invention

[0005] The purpose of the present invention is to at least solve the problems of the complex test environment construction, the large amount of time and manpower required, and the limited test accuracy of the sound source localization test method. This purpose is achieved through the following technical solutions:

[0006] A first aspect of the present invention provides a sound source localization test method, the sound source localization test method comprising the following steps:

[0007] Adjust the angle of the sound source relative to the preset position of the device under test to an initial angle;

[0008] Determine the location of the sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test;

[0009] According to the image information collected by the image acquisition module of the device under test at the position, identifying the human figure in the image information;

[0010] Determine angle data of the sound source relative to the preset position according to the orientation and the portrait;

[0011] Comparing the angle data with the actual angle of the sound source relative to the preset position, and outputting the comparison result;

[0012] adjusting the angle of the sound source relative to the preset position;

[0013] Repeat the steps of determining the orientation of a sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test to adjusting the angle of the sound source relative to the preset position.

[0014] According to the sound source localization test method of the present invention, the sound source is accurately located by combining the sound signal with the human image, so that the sound source localization test in the operating environment can be realized, the test environment requirements are low, and the operability is stronger. In addition, the sound source localization test method of this embodiment can automatically adjust the angle of the sound source relative to the device under test, thereby improving the accuracy of the measurement result, and the operation method is simple, which saves the test time and the workload of the tester and improves the test efficiency.

[0015] In addition, the sound source localization test method according to the present invention may also have the following additional technical features:

[0016] In some embodiments of the present invention, the angle when the preset position is facing the sound source is used as the initial angle.

[0017] In some embodiments of the present invention, the position where the audio acquisition module is set is used as the preset position.

[0018] In some embodiments of the present invention, the angle data of the sound source in the horizontal direction relative to the preset position and / or the angle data of the sound source in the vertical direction relative to the preset position are used as the angle data.

[0019] In some embodiments of the present invention, a plurality of artificial heads are arranged in the detection area of ​​the image detection module, and the sound signal is emitted from one of the artificial heads.

[0020] In some embodiments of the present invention, after determining the angle data of the sound source relative to the preset position according to the orientation and the human portrait, the number of the artificial head that emits the sound signal is also determined according to the orientation and the human portrait;

[0021] When comparing the angle data with the actual angle of the sound source relative to the preset position and outputting the comparison result, the number of the artificial head is also compared with the actual number of the artificial head that emits the sound signal and the comparison result is output.

[0022] In some embodiments of the present invention, in the step of identifying a human portrait in the image information according to the image information collected by the image acquisition module of the device under test at the position, the human portrait is further displayed after the human portrait in the image information is identified.

[0023] In some embodiments of the present invention, in the step of identifying a human figure in the image information according to the image information collected by the image collection module of the device under test at the position, if no human figure is recognized in the image information, the sound signal is determined to be invalid speech, and the process returns to the step of determining the position of the sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test.

[0024] In some embodiments of the present invention, the step of adjusting the angle of the sound source relative to the preset position includes: controlling the device under test to rotate to a set angle.

[0025] In some embodiments of the present invention, the sound source is controlled to emit a sound signal with a set sound intensity.

[0026] In some embodiments of the present invention, before the step of determining the orientation of a sound source emitting the sound signal based on the sound signal collected by the audio collection module of the device under test, the sound source localization test method further includes: calibrating the sound signal of a set sound intensity emitted by the sound source.

[0027] In some embodiments of the present invention, the step of calibrating the sound signal of the set sound intensity emitted by the sound source includes:

[0028] According to the detection result of the first standard sound intensity sound receiving device on the sound signal of the second standard sound intensity, the first detection result is determined:

[0029] Determining a theoretical detection result of the first standard sound intensity sound collecting device for a sound signal of a set sound intensity according to the first detection result;

[0030] Determine, according to the detection result of the first standard sound intensity sound collecting device on the sound signal emitted by the sound source, the second detection result;

[0031] The sound intensity of the sound signal emitted by the sound source is calibrated according to the second detection result and the theoretical detection result.

[0032] In some embodiments of the present invention, the audio acquisition module includes a plurality of microphones, and the plurality of microphones are arranged at different positions of the device under test. Before the step of adjusting the angle of the sound source relative to the preset position, the sound source localization test method further includes:

[0033] Determine, according to the sound signals respectively received by the multiple microphones, multiple angle data based on the sound signals collected by different microphones;

[0034] When at least two of the multiple angle data are different, the user is prompted to repair the device under test. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0036] Figure 1 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown;

[0037] Figure 2 The figure schematically shows the relative positions of the artificial head and the device under test in the sound source localization test method according to an embodiment of the present invention.

[0038] Figure 3 The figure schematically shows a top view of an artificial head and a device under test in a sound source localization test method according to an embodiment of the present invention.

[0039] Figure 4 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown.

[0040] Figure 5 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown.

[0041] The reference numerals are as follows:

[0042] 100. Device under test; 101. Image acquisition module; 200. Artificial head; 202. Artificial head A; 201. Artificial head B; 203. Artificial head C; 300. Test bench; 400. Control terminal. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0046] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0047] The present embodiment is described in detail below in conjunction with the accompanying drawings. The following embodiments and examples may be combined with each other unless there is any conflict.

[0048] Figure 1 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown. Figure 1This embodiment proposes a sound source localization test method, which includes the following steps:

[0049] S11, adjusting the angle of the sound source relative to the preset position of the device under test 100 to an initial angle;

[0050] S12, determining the direction of the sound source emitting the sound signal according to the sound signal collected by the audio collection module of the device under test 100;

[0051] S13, controlling the image acquisition module 101 of the device under test 100 to acquire image information at the position, and identifying a human figure in the image information;

[0052] S14, determining angle data of the sound source relative to a preset position according to the orientation and the portrait;

[0053] S15, comparing the angle data with the actual angle of the sound source relative to the preset position, and outputting the comparison result;

[0054] S16, adjusting the angle of the sound source relative to the preset position;

[0055] S17. Repeat steps S12 to S16.

[0056] In the above steps, the device under test 100 is connected to the control terminal 400, and the control terminal 400 can be a computer, a smart phone or a tablet computer. The device under test 100 is an audio and video device, and the device under test 100 has an audio acquisition module (not shown in the figure) that can collect sound signals and an image acquisition module 101 that can collect image information. The control terminal 400 can obtain the sound signal collected by the audio acquisition module, and obtain the image information collected by the image acquisition module 101, and recognize the human image in the image information, and can also analyze the acquired sound signal and human image, and then locate the sound source position. The audio acquisition module is, for example, one or more microphones arranged on the device under test 100. When multiple microphones are set, the multiple microphones are arranged at different positions of the device under test 100, and the sound signal received by the device under test 100 is the sound signal detected by the multiple microphones respectively. Exemplarily, the audio acquisition module includes four microphones, and the four microphones are arranged at intervals along the circumference of the device under test 100. The image acquisition module 101 is, for example, a camera arranged on the device under test 100, and the sound source is arranged in the detection area of ​​the image detection module. The sound signal emitted by the sound source is controlled to be a sound signal of a set sound intensity to ensure that the audio acquisition module can accurately collect the sound signal and improve the accuracy of the sound source positioning test. For example, the sound intensity is set to meet the sound intensity of 75dB at a distance of 0.5m from the sound source. The sound source is one or more artificial heads 200 located in the detection area of ​​the image acquisition module 101, refer to Figure 2 , the pickup area of ​​the audio acquisition module is Figure 2The area enclosed by the circle in the middle is the acquisition area of ​​the image acquisition module 101. Figure 2 In the area shown by the middle sector, artificial heads A202, B201, and C203 are arranged in the detection area of ​​the image acquisition module 101. The positions of artificial heads A202, B201, and C203 can be fixed or moved relative to the device under test 100. The angles of artificial heads A202, B201, and C203 relative to the preset positions of the device under test 100 are different. Figure 3 , artificial head A202, artificial head B201, and artificial head C203 are arranged along the circumferential direction of the device under test 100, and artificial head A202 is located between artificial head B201 and artificial head C203. The distances between artificial head A202, artificial head B201, and artificial head C203 and the device under test 100 can be the same or different, and can be adjusted according to actual conditions. One of artificial head A202, artificial head B201, and artificial head C203 is selected as the sound source to simulate the speech scene when multiple people attend the meeting.

[0057] In step S11, the angle between the sound source and the preset position of the device under test 100 is adjusted to an initial angle. The preset position is a reference position on the device under test 100 for determining the angle between the sound source and the device under test 100. The preset position can be determined by the tester according to the test requirements. For example, the position where the audio acquisition module is set is used as the preset position. When the audio acquisition module includes multiple microphones, the position where any one of the microphones is set can be used as the preset position. In other examples, other positions on the device under test 100 can also be used as preset positions, which are not listed here. The size of the initial angle is not limited and can be flexibly set according to the difficulty of the test process. For example, the angle when the preset position is facing the sound source is used as the initial angle. Reference Figure 3 , take the artificial head A202 as the sound source, and set the angle of the preset position toward the artificial head A202 as the initial angle.

[0058] In step S12, the audio acquisition module of the device under test 100 acquires a sound signal, and the sound signal can be emitted by the tester controlling the sound source to start, or by establishing a connection between the sound source and the control terminal 400, and then the control terminal 400 controls the sound source to emit. After the control terminal 400 acquires the sound signal acquired by the audio acquisition module, the position of the sound source emitting the sound signal is determined by software analysis. When the audio acquisition module includes multiple microphones, after the control terminal 400 acquires the sound signals acquired by the multiple microphones respectively, the control terminal 400 determines the positions of the multiple sound sources by software analysis based on the sound signals acquired by each microphone. When the device under test 100 is fault-free, the positions of the multiple sound sources determined based on the sound signals acquired by the multiple microphones should be the same.

[0059] In step S13, since the sound source is located in the detection area of ​​the image acquisition module 101, the image acquisition module 101 will collect images in the entire area in real time. After determining the direction of the sound source, the control terminal 400 identifies the human figure in the image information at the direction of the sound source based on the image information collected by the image acquisition module 101 at the determined direction of the sound source. If a human figure is identified in the image information at the direction of the sound source, it means that the sound signal is emitted by the identified human figure, and the sound signal collected by the audio acquisition module is determined to be a valid sound signal. The control terminal 400 also includes a display screen. After identifying a human figure in the image information at the direction of the sound source, the control terminal 400 will also display the identified human figure, that is, display the human figure that emits the sound signal. If no portrait is recognized in the image information, it means that the sound signal collected by the sound collection module is not emitted by a person, and the sound signal collected by the audio collection module may be external noise. The sound signal collected by the audio collection module is determined to be invalid speech. At this time, return to step S12 and re-determine the direction of the sound source based on the sound signal collected by the audio collection module. At this time, the screen of the display screen of the control terminal 400 does not switch, and the previously recognized portrait is still displayed.

[0060] In step S14, after obtaining the sound source orientation and the human image at the sound source orientation, the control terminal 400 can analyze the sound source orientation and the human image through software, and finally obtain the angle data of the sound source relative to the preset position. In one example, the horizontal angle of the sound source relative to the preset position is used as the angle data. In another example, the vertical angle of the sound source relative to the preset position is used as the angle data. In the actual test process, one of the two angle data in the above two examples can be obtained, or both angle data in the above two examples can be obtained at the same time.

[0061] In step S15, the control terminal 400 compares the determined angle data with the actual angle of the sound source relative to the preset position. After the comparison, the comparison result is stored and output. When the determined angle data is the same as the actual angle data, it means that the sound source is accurately positioned. When the determined angle data is different from the actual angle data, it means that the sound source is inaccurately positioned, thereby providing intuitive detection results for the tester.

[0062] In step S16, the angle of the sound source relative to the preset position can be adjusted by controlling the rotation of the device under test 100 through the control terminal 400, for example, the position of the sound source is fixed, the device under test 100 is set at the center of the rotatable test bench 300, the control terminal 400 is connected to the test bench 300, and the control terminal 400 controls the rotation of the device under test 100 by controlling the rotation of the test bench 300, thereby adjusting the angle of the sound source relative to the preset position. In other achievable methods, the control terminal 400 can also control the rotation of the sound source relative to the device under test 100, for example, the sound source is set on a ring-shaped test bench, the device under test 100 is fixed at the center of the ring-shaped test bench, the control terminal 400 is connected to the ring-shaped test bench, and the control terminal 400 adjusts the rotation angle of the sound source relative to the preset position of the device under test 100 by controlling the rotation of the ring-shaped test bench. The angle between the sound source and the preset position adjusted by the control terminal 400 each time can be the same or different. In order to simplify the operation, the device under test 100 is controlled to rotate a set angle, and the set angle is, for example, 5 degrees or 10 degrees.

[0063] In step S17, steps S12 to S16 are repeated until all angle measurements are completed, and finally the sound source localization results at all angles can be obtained, so that the accuracy of the sound source localization results can be determined, and the reliability of the sound source localization of the device under test 100 can be determined.

[0064] This embodiment accurately locates the sound source by combining the sound signal with the human image, thereby realizing the sound source localization test in the operating environment, having low requirements for the test environment and being more operable. In addition, the sound source localization test method of this embodiment can automatically adjust the angle of the sound source relative to the device under test 100, thereby improving the accuracy of the measurement result, having a simple operation method, saving test time and the workload of the tester, and improving the test efficiency.

[0065] In some embodiments, multiple artificial heads 200 are arranged in the detection area of ​​the image detection module, and a sound signal is emitted from one of the artificial heads 200. When the angle of the sound source relative to the preset position is adjusted, the sound signal can be emitted by the same artificial head 200, or different artificial heads 200 can be controlled to emit sound signals at different angles. Figure 3In the detection area of ​​the image detection module, there are artificial heads A202, B201 and C203. When the angle of the sound source relative to the preset position of the device under test 100 is the initial angle, the artificial head A202 is controlled to send a sound signal. After the angle of the sound source relative to the preset position is adjusted, the artificial head A202 is controlled to send a sound signal again, or the artificial head B201 or the artificial head C203 is controlled to send a sound signal.

[0066] In some embodiments, in step S14, while determining the angle data of the sound source relative to a preset position based on the orientation and the portrait, the number of the artificial head 200 that emits the sound signal is also determined. The control terminal 400 stores the position information of multiple artificial heads 200 in the detection area of ​​the image detection module. After the control terminal 400 determines the orientation of the sound source that emits the sound signal, the control terminal 400 will identify the portrait in the image information collected by the image detection module at the orientation of the sound source, and then compare the identified portrait with the position information of the artificial head 200 stored in the control terminal 400, thereby determining the number of the artificial head 200 that emits the sound signal. In step S15, the output number of the artificial head 200 will also be compared with the actual number of the artificial head 200 that emits the sound signal, and then the comparison result will be output to determine whether the identified number of the artificial head 200 matches the actual number of the artificial head 200. Refer to Figure 3 When the artificial head A202 , the artificial head B201 , and the artificial head C203 are all located within the detection range of the image detection module, the position information of the artificial head A202 , the artificial head B201 , and the artificial head C203 is stored in the control terminal 400 . When the artificial head A202 sends out a sound signal, the artificial heads B201 and C203 will interfere with the positioning of the artificial head A202. The control terminal 400 determines the position of the artificial head A202 after collecting the sound signal sent by the artificial head A202 according to the audio collection module, and then identifies the human figure in the image information according to the image information collected by the image collection module 101 at the position of the artificial head A202, and then compares it with the positions of the artificial heads A202, B201, and C203 stored in the control terminal 400, so as to determine that the number of the artificial head 200 that sends out the sound signal is the artificial head A202, and then compares the number A of the identified artificial head 200 with the number A of the artificial head 200 that actually sends out the sound signal, so as to determine the accurate positioning of the sound source. This embodiment determines the number of the artificial head 200 that sends out the sound signal while determining the angle of the sound source relative to the preset position of the device under test 100, so that the sound source can be accurately positioned.

[0067] In some embodiments, before executing step S12, the sound source localization test method further includes: calibrating the sound signal of the set sound intensity emitted by the sound source, so as to ensure that the sound signal intensity emitted by the sound source can be collected by the audio acquisition module of the tested device 100. Keeping the sound signal intensity emitted by the sound source constant can also ensure the accuracy of the test results.

[0068] Figure 4 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown. Figure 4 The step of calibrating the sound intensity of the sound signal emitted by the artificial head 200 comprises:

[0069] S21, determining the first detection result according to the detection result of the sound signal of the second standard sound intensity by the first standard sound intensity sound collecting device:

[0070] S22, determining a theoretical detection result of the first standard sound intensity sound collecting device for the sound signal with set sound intensity according to the first detection result;

[0071] S23, determining the detection result of the sound signal by the first standard sound intensity sound collecting device as the second detection result;

[0072] S24. Calibrate the sound intensity of the sound signal emitted by the sound source according to the second detection result and the theoretical detection result.

[0073] In the above steps, the first standard sound intensity sound receiving device is, for example, a directional microphone microphone, which is a detection device specifically used to detect sound intensity, and the maximum sound intensity that the directional microphone microphone can detect is the first standard sound intensity. The second standard sound intensity is, for example, a sound signal of a specific decibel value emitted by a microphone calibrator, which is a detection device specifically used to calibrate sound intensity. The first standard sound intensity and the second standard sound intensity may be the same or different. When the first standard sound intensity sound receiving device detects the sound signal of the second standard sound intensity, the detection result obtained is the first detection result. According to the first detection result, the theoretical detection result of the first standard sound intensity sound receiving device in detecting the sound signal of the set sound intensity can be determined. For example, the first standard sound intensity sound receiving device is a directional microphone microphone of 75dB, and the sound signal of the second standard sound intensity is a sound signal of 94dB emitted by the microphone calibrator. The sound signal strength of the set sound intensity at a distance of 0.5m from the sound source is 75dB. A 75dB directional microphone detects the 94dB sound signal emitted by the microphone calibrator, and the detection result is 20dB. The theoretical value of the sound signal strength detected by the 75dB directional microphone at a distance of 0.5m from the sound source is 1dB. Then, the 75dB directional microphone detects the sound signal of the set sound intensity emitted by the sound source at a distance of 0.5m from the sound source to obtain a second detection result. If the second detection result is the same as the theoretical value, it means that the sound signal intensity emitted by the sound source reaches the set sound intensity. If the second detection result is different from the theoretical value, it means that the sound signal intensity emitted by the sound source does not reach the set intensity, and the intensity of the sound signal needs to be adjusted to make the second detection result consistent with the theoretical value.

[0074] In some embodiments, Figure 5 The flowchart of the sound source localization test method according to the embodiment of the present invention is schematically shown. Figure 5 Before executing step S16, the sound source localization test method further includes:

[0075] S31, determining multiple angle data based on the sound signals collected by different microphones according to the sound signals respectively received by the multiple microphones;

[0076] S32 . When at least two of the multiple angle data are different, prompt the user to repair the device under test 100 .

[0077] In the above steps, the audio acquisition module includes multiple microphones, and the multiple microphones are arranged at different positions of the device under test 100. Before executing step S6, multiple angle data based on the sound signals collected by different microphones are also determined according to the sound signals respectively received by the multiple microphones. When the control terminal 400 determines multiple sound source positions based on the sound signals respectively collected by the multiple microphones, the control terminal 400 also recognizes the human figures in the image information respectively according to the image information respectively collected by the image acquisition module 101 at the multiple sound source positions, and finally determines multiple angle data according to the respectively recognized human figures and the sound signals respectively collected by the multiple microphones. Then, by comparing the multiple angle data, and when at least two of the multiple angle data are different, it is explained that the angle data difference is caused by the structural difference of the multiple microphones. At this time, a prompt message is sent to the user to remind the user to repair the device under test 100. The user can repair the device under test 100 by adjusting the installation positions of the multiple microphones inside the device under test 100 and checking whether the air tightness of the multiple microphones is good to ensure that the multiple angle data are consistent, thereby improving the accuracy and stability of the sound source positioning test.

[0078] The sound source localization test method of this embodiment is applicable to different types of audio and video equipment, has good versatility and compatibility, has the advantages of low cost and ease of use in practical applications, and can be performed in various forms such as on-site and online.

[0079] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A sound source localization test method, characterized in that: The sound source localization test method comprises: Adjust the angle of the sound source relative to the preset position of the device under test to an initial angle; Determine the location of the sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test; According to the image information collected by the image acquisition module of the device under test at the position, identifying a human figure in the image information; Determine angle data of the sound source relative to the preset position according to the orientation and the portrait; Comparing the angle data with the actual angle of the sound source relative to the preset position, and outputting the comparison result; adjusting the angle of the sound source relative to the preset position; Repeat the steps of determining the orientation of a sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test to adjusting the angle of the sound source relative to the preset position.

2. The sound source localization test method according to claim 1, characterized in that: The angle when the preset position faces the sound source is used as the initial angle.

3. The sound source localization test method according to claim 1, characterized in that: The position where the audio acquisition module is set is used as the preset position.

4. The sound source localization test method according to claim 1, characterized in that: The horizontal angle of the sound source relative to the preset position and / or the vertical angle of the sound source relative to the preset position are used as the angle data.

5. The sound source localization test method according to claim 1, characterized in that: A plurality of artificial heads are arranged in the detection area of ​​the image detection module, and the sound signal is emitted from one of the artificial heads.

6. The sound source localization test method according to claim 5, characterized in that: In the step of determining the angle data of the sound source relative to the preset position according to the orientation and the human image, the number of the artificial head that emits the sound signal is also determined according to the orientation and the human image; In the step of comparing the angle data with the actual angle of the sound source relative to the preset position and outputting the comparison result, the number of the artificial head is compared with the actual number of the artificial head that emits the sound signal, and the comparison result is output.

7. The sound source localization test method according to claim 6, characterized in that: In the step of identifying a human portrait in the image information according to the image information collected by the image collection module of the device under test at the position, after the human portrait in the image information is identified, the human portrait is displayed.

8. The sound source localization test method according to claim 7, characterized in that: In the step of identifying a human figure in the image information according to the image information collected at the position by the image acquisition module of the device under test, if no human figure is recognized in the image information, determining that the sound signal is invalid speech, and returning to the step of determining the position of the sound source emitting the sound signal according to the sound signal collected by the audio acquisition module of the device under test.

9. The sound source localization test method according to claim 1, characterized in that: The step of adjusting the angle of the sound source relative to the preset position includes: controlling the device under test to rotate to a set angle.

10. The sound source localization test method according to claim 1, characterized in that: The sound source is controlled to emit a sound signal with a set sound intensity.

11. The sound source localization test method according to claim 10, characterized in that: Before the step of determining the position of a sound source that emits the sound signal according to the sound signal collected by the audio collection module of the device under test, the sound source localization test method further includes: calibrating the sound signal of set sound intensity emitted by the sound source.

12. The sound source localization test method according to claim 11, characterized in that: The step of calibrating the sound signal of the set sound intensity emitted by the sound source includes: According to the detection result of the first standard sound intensity sound receiving device on the sound signal of the second standard sound intensity, the first detection result is determined: Determining a theoretical detection result of the first standard sound intensity sound collecting device for a sound signal of a set sound intensity according to the first detection result; Determine, according to the detection result of the first standard sound intensity sound collecting device on the sound signal emitted by the sound source, the second detection result; The sound intensity of the sound signal emitted by the sound source is calibrated according to the second detection result and the theoretical detection result.

13. The sound source localization test method according to claim 1, characterized in that: The audio acquisition module includes a plurality of microphones, and the plurality of microphones are arranged at different positions of the device under test. Before the step of adjusting the angle of the sound source relative to the preset position, the sound source positioning test method further includes: Determine, according to the sound signals respectively received by the multiple microphones, multiple angle data based on the sound signals collected by different microphones; When at least two of the multiple angle data are different, the user is prompted to repair the device under test.

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