阅读说明：本技术 音频检测电路、音频检测设备和音频检测系统 (Audio detection circuit, audio detection device and audio detection system ) 是由 韦洁钊 梁选勤 余毅鹏 吴树雄 陈家劭 杨金河 王平 朱贝 于 2021-09-22 设计创作，主要内容包括：本发明公开了一种音频检测电路、音频检测设备和音频检测系统。本发明的音频检测电路用于分别与数据采集设备和待测设备连接,所述数据采集设备用于对所述待测设备进行音频测试,所述音频检测电路包括：第一连接模块,用于与所述数据采集设备电连接；检测模块,所述检测模块的一端与所述第一连接模块电连接；第二连接模块,用于分别与所述待测设备、所述检测模块的另一端电连接；其中,所述检测模块用于检测所述待测设备的工作状态,并根据所述工作状态进行导通或关断。本发明实施例中的音频检测电路能避免待测设备异常时进行音频测试的情况,解决了现阶段使用的音频自动化测试方法存在测试盲区的问题,提高了待测设备的测试可靠性。(The invention discloses an audio detection circuit, an audio detection device and an audio detection system. The audio detection circuit is used for being respectively connected with data acquisition equipment and equipment to be tested, the data acquisition equipment is used for carrying out audio test on the equipment to be tested, and the audio detection circuit comprises: the first connecting module is used for being electrically connected with the data acquisition equipment; one end of the detection module is electrically connected with the first connecting module; the second connecting module is used for being electrically connected with the equipment to be detected and the other end of the detection module respectively; the detection module is used for detecting the working state of the equipment to be detected and conducting or switching off according to the working state. The audio detection circuit in the embodiment of the invention can avoid the situation of audio test when the equipment to be tested is abnormal, solves the problem of test blind area in the existing audio automatic test method, and improves the test reliability of the equipment to be tested.)

1. Audio detection circuitry, its characterized in that, audio detection circuitry is used for being connected with data acquisition equipment and equipment to be tested respectively, data acquisition equipment is used for right the equipment to be tested carries out the audio test, audio detection circuitry includes:

the first connecting module is used for being electrically connected with the data acquisition equipment;

one end of the detection module is electrically connected with the first connecting module;

the second connecting module is used for being electrically connected with the equipment to be detected and the other end of the detection module respectively;

the detection module is used for detecting the working state of the equipment to be detected and conducting or switching off according to the working state.

2. The audio detection circuit of claim 1, wherein the detection module comprises:

the first detection unit is electrically connected with the second connection module and is used for generating a detection signal according to the working state;

and the second detection unit is respectively electrically connected with the first detection unit, the first connection module and the second connection module and is used for switching on or switching off according to the detection signal.

3. The audio detection circuit according to claim 2, wherein the first detection unit includes:

one end of the first resistor is electrically connected with the second connecting module;

one end of the second resistor is electrically connected with the other end of the first resistor;

and the grid electrode of the MOS tube is respectively electrically connected with the other end of the first resistor and one end of the second resistor, the source electrode of the MOS tube is electrically connected with the other end of the second resistor, and the drain electrode of the MOS tube is electrically connected with the second detection unit.

4. The audio detection circuit of claim 3, wherein the first detection unit further comprises:

and one end of the first capacitor is electrically connected with one end of the first resistor, and the other end of the first capacitor is electrically connected with the other end of the second resistor.

5. The audio detection circuit according to any one of claims 2 to 4, wherein the second detection unit includes:

and the relay is electrically connected with the first detection unit, the first connection module and the second connection module respectively.

6. The audio detection circuit of claim 5, wherein the second detection unit further comprises:

and the diode is electrically connected with the first detection unit and the relay respectively.

7. The audio detection circuit according to any one of claims 2 to 4, wherein the first connection module further comprises:

the receiving unit is electrically connected with the data acquisition equipment and the second detection unit respectively and is used for sending a test signal;

the sending unit is respectively electrically connected with the data acquisition equipment and the second connecting module and is used for receiving a feedback signal;

the data acquisition equipment is used for carrying out audio test on the equipment to be tested according to the test signal and the feedback signal.

8. The audio detection circuit according to any one of claims 2 to 4, wherein the audio detection circuit further comprises:

and the second capacitor is electrically connected with the second connecting module and the second detection unit respectively.

9. Audio detection apparatus, comprising: an audio detection circuit as claimed in any one of claims 1 to 8.

10. Audio detection system, characterized in that, includes:

the data acquisition equipment comprises a data acquisition card and control equipment, wherein the data acquisition card is used for sending a test signal and is connected with the control equipment;

the audio detection device according to claim 9, wherein one end of the audio detection device is electrically connected to the data acquisition card;

the device to be tested is connected with the other end of the audio detection device and used for generating a feedback signal;

and the control equipment is used for carrying out audio test on the equipment to be tested according to the test signal and the feedback signal.

Technical Field

The invention relates to the technical field of signal processing, in particular to an audio detection circuit, audio detection equipment and an audio detection system.

Background

At present, the method for testing the audio function is complex and various, and the problems of overhigh test cost or test blind areas in the function test commonly exist in the test method.

For example, when manual testing is performed, whether sound output, volume and audio level exist is judged through ears, but the mode increases the testing cost and is influenced by human factors, so that a human testing blind area is formed, and the testing efficiency is influenced; the other method is that a USB data acquisition card is used for carrying out automatic testing, the data acquisition card and a computer are connected through the USB, but the USB connected with the computer can provide effective bias voltage for the equipment to be tested, the abnormal condition of the equipment to be tested cannot be intercepted, and the reliability of the equipment to be tested is poor when the audio function test is carried out, so that a test blind area is formed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an audio detection circuit, an audio detection device and an audio detection system, which can solve the problem that the audio automatic test method used at the present stage has a test blind area and improve the test reliability of the device to be tested.

According to the audio detection circuit of the embodiment of the first aspect of the present invention, the audio detection circuit is configured to be connected to a data acquisition device and a device under test, respectively, the data acquisition device is configured to perform an audio test on the device under test, and the audio detection circuit includes: the first connecting module is used for being electrically connected with the data acquisition equipment; one end of the detection module is electrically connected with the first connecting module; the second connecting module is used for being electrically connected with the equipment to be detected and the other end of the detection module respectively; the detection module is used for detecting the working state of the equipment to be detected and conducting or switching off according to the working state.

The audio detection circuit according to the embodiment of the invention has at least the following beneficial effects: the audio test method has the advantages that the audio test is carried out on the equipment to be tested through the data acquisition equipment, the working state of the equipment to be tested is detected through the detection module of the audio detection circuit, and the audio detection circuit is switched on or switched off according to the working state, so that the condition of carrying out the audio test when the equipment to be tested is abnormal is avoided, the problem that the audio automatic test method has a test blind area is solved, and the test reliability of the equipment to be tested is improved.

According to some embodiments of the invention, the detection module comprises: the first detection unit is electrically connected with the second connection module and is used for generating a detection signal according to the working state; and the second detection unit is respectively electrically connected with the first detection unit, the first connection module and the second connection module and is used for switching on or switching off according to the detection signal.

According to some embodiments of the invention, the first detection unit comprises: one end of the first resistor is electrically connected with the second connecting module; one end of the second resistor is electrically connected with the other end of the first resistor; and the grid electrode of the MOS tube is respectively electrically connected with the other end of the first resistor and one end of the second resistor, the source electrode of the MOS tube is electrically connected with the other end of the second resistor, and the drain electrode of the MOS tube is electrically connected with the second detection unit.

According to some embodiments of the invention, the first detection unit further comprises: and one end of the first capacitor is electrically connected with one end of the first resistor, and the other end of the first capacitor is electrically connected with the other end of the second resistor.

According to some embodiments of the invention, the second detection unit comprises: and the relay is electrically connected with the first detection unit, the first connection module and the second connection module respectively.

According to some embodiments of the invention, the second detection unit further comprises: and the diode is electrically connected with the first detection unit and the relay respectively.

According to some embodiments of the invention, the first connection module further comprises: the receiving unit is electrically connected with the data acquisition equipment and the second detection unit respectively and is used for sending a test signal; the sending unit is respectively electrically connected with the data acquisition equipment and the second connecting module and is used for receiving a feedback signal; the data acquisition equipment is used for carrying out audio test on the equipment to be tested according to the test signal and the feedback signal.

According to some embodiments of the invention, the audio detection circuit further comprises: and the second capacitor is electrically connected with the second connecting module and the second detection unit respectively.

An audio detection device according to an embodiment of the second aspect of the invention comprises an audio detection circuit according to an embodiment of the first aspect of the invention.

The audio detection device according to the embodiment of the invention has at least the following beneficial effects: the data acquisition equipment carries out audio test on the equipment to be tested, the detection module of the audio detection circuit in the embodiment of the first aspect of the invention is adopted to detect the working state of the equipment to be tested, and the audio detection circuit is switched on or switched off according to the working state, so that the condition of carrying out audio test when the equipment to be tested is abnormal is avoided, the phenomenon of test blind areas existing in the audio automatic test method is solved, and the test reliability of the equipment to be tested is improved.

An audio detection system according to an embodiment of the third aspect of the invention comprises: the data acquisition equipment comprises a data acquisition card and control equipment, wherein the data acquisition card is used for sending a test signal and is connected with the control equipment; according to the audio detection device in the embodiment of the second aspect of the present invention, one end of the audio detection device is used for being electrically connected to the data acquisition card; the device to be tested is connected with the other end of the audio detection device and used for generating a feedback signal; and the control equipment is used for carrying out audio test on the equipment to be tested according to the test signal and the feedback signal.

The audio detection system according to the embodiment of the invention has at least the following beneficial effects: the data acquisition card sends a test signal, the audio detection device of the embodiment of the second aspect of the invention can receive the test signal sent by the data acquisition card and the feedback signal generated by the device to be tested, and the control device compares the device to be tested according to the received test signal and the feedback signal to determine the audio test result of the device to be tested, thereby avoiding the situation of audio test when the device to be tested is abnormal, solving the problem of test blind area in the audio automatic test method and improving the test reliability of the device to be tested.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a block diagram of an audio detection circuit according to an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of an audio detection circuit according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of an audio detection system according to an embodiment of the present invention.

Reference numerals:

the device comprises an audio detection circuit 100, a detection module 110, a first detection unit 111, a second detection unit 112, a first connection module 120, a receiving unit 121, a sending unit 122, a second connection module 130, a data acquisition device 200, a data acquisition card 210, a control device 220, a device under test 300 and an audio detection device 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, an embodiment of the present application provides an audio detection circuit, where the audio detection circuit 100 is configured to be connected to a data acquisition device 200 and a device under test 300 respectively, the data acquisition device 200 is configured to perform an audio test on the device under test 300, and the audio detection circuit 100 includes a first connection module 120, a detection module 110, and a second connection module 130. The first connection module 120 is used for electrically connecting with the data acquisition device 200; one end of the detection module 110 is electrically connected to the first connection module 120; the second connection module 130 is configured to be electrically connected to the device under test 300 and the other end of the detection module 110, respectively. The detecting module 110 is configured to detect a working state of the device 300 to be tested, and turn on or off according to the working state.

Specifically, the detection module 110 controls the audio detection circuit 100 to be turned on or off by detecting the operating state of the device 300 under test, that is, detecting whether the audio bias voltage exists in the device 300 under test. For example, when the data acquisition device 200 sends a test signal for performing an audio test on the device to be tested 300, the first connection module 120 receives the test signal sent by the data acquisition device 200, the detection module 110 detects the current working state of the device to be tested 300, and when the detection module 110 detects that an audio offset voltage exists in the device to be tested 300, it indicates that the working state of the device to be tested 300 is normal; otherwise, if the working state of the device under test 300 is abnormal, the detection module 110 and the second connection module 130 are turned off. Under the condition that the working state of the device 300 to be tested is normal, the detection module 110 is turned on, the second connection module 130 is turned on along with the turning on of the detection module 110, at this time, the data acquisition device 200 transmits the test signal to the device 300 to be tested through the detection module 110 and the second connection module 130, and receives the feedback signal of the device 300 to be tested. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. If the test signal received by the data acquisition device 200 is consistent with the feedback signal, the audio function of the device 300 to be tested is normal; otherwise, the audio function of the device under test 300 is abnormal.

The audio detection circuit 100 provided in the embodiment of the present application detects the working state of the device to be tested 300 through the detection module 110, and conducts or shuts off according to the working state, thereby avoiding the situation of performing audio test when the device to be tested 300 is abnormal, solving the problem of a test blind area existing in the audio automatic test method, and improving the test reliability of the device to be tested 300.

Referring to fig. 1, 2, in some embodiments, the detection module 110 includes a first detection unit 111 and a second detection unit 112. The first detection unit 111 is electrically connected to the second connection module 130, and is configured to generate a detection signal according to the operating state; the second detecting unit 112 is electrically connected to the first detecting unit 111, the first connecting module 120 and the second connecting module 130, respectively, and is configured to be turned on or off according to the detection signal.

Specifically, when the data acquisition device 200 sends a test signal for performing an audio test on the device to be tested 300, the first detection unit 111 detects a working state of the device to be tested 300, and when the first detection unit 111 detects that an audio bias voltage exists in the device to be tested 300, it indicates that the working state of the device to be tested 300 is normal; otherwise, it indicates that the working state of the device under test 300 is abnormal. Under the condition that the working state of the device 300 to be tested is normal, the first detection unit 111 is turned on and generates a corresponding detection signal according to the working state of the device 300 to be tested, the second detection unit 112 is turned on according to the detection signal, and the second connection module 130 transmits the test signal to the device 300 to be tested and receives a feedback signal sent by the device 300 to be tested. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. If the test signal received by the data acquisition device 200 is consistent with the feedback signal, the audio function of the device 300 to be tested is normal; otherwise, the audio function of the device under test 300 is abnormal. The embodiment of the application avoids the situation of audio test when the device to be tested 300 is abnormal, thereby solving the problem that the audio automatic test method has a test blind area and improving the test reliability of the device to be tested 300.

In some embodiments, referring to fig. 1 and 2, the first detection unit 111 includes a first resistor R1, a second resistor R2, and a MOS transistor Q1. One end of the first resistor R1 is electrically connected to the second connection module 130; one end of the second resistor R2 is electrically connected with the other end of the first resistor R1; the gate of the MOS transistor Q1 is electrically connected to the other end of the first resistor R1 and one end of the second resistor R2, the source of the MOS transistor Q1 is electrically connected to the other end of the second resistor R2, and the drain of the MOS transistor Q1 is electrically connected to the second detection unit 112.

Specifically, in some embodiments, the MOS transistor Q1 may be an NMOS transistor. One end of the first resistor R1 is electrically connected to the second connection module 130, a gate of the MOS transistor Q1 is electrically connected to the other end of the first resistor R1 and one end of the second resistor R2, respectively, a source of the MOS transistor Q1 is electrically connected to the other end of the second resistor R2, a source of the MOS transistor Q1 is grounded, and a drain of the MOS transistor Q1 is electrically connected to the second detection unit 112. When the audio bias voltage exists in the device under test 300, the voltage difference between the gate and the source of the MOS transistor Q1 is greater than the turn-on voltage of the MOS transistor Q1, and the MOS transistor Q1 is turned on, the first detection unit 111 is turned on and generates a corresponding detection signal according to the operating state of the device under test 300, the second detection unit 112 is turned on according to the detection signal, and the second connection module 130 transmits the test signal to the device under test 300 and receives a feedback signal sent by the device under test 300. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. The condition of audio test when the equipment to be tested 300 is abnormal is avoided, so that the phenomenon that the audio automatic test method has a test blind area is solved, and the test reliability of the equipment to be tested 300 is improved.

In some embodiments, referring to fig. 1 and 2, the first detection unit 111 further includes a first capacitor C1. One end of the first capacitor C1 is electrically connected to one end of the first resistor R1, and the other end of the first capacitor C1 is electrically connected to the other end of the second resistor R2. Specifically, the other end of the first capacitor C1 is grounded.

In some embodiments, referring to fig. 1 and 2, the second detection unit 112 includes a relay Q2. The relay Q2 is electrically connected to the first detection unit 111, the first connection module 120, and the second connection module 130, respectively.

Specifically, the relay Q2 is connected to the drain of the MOS transistor Q1 in the first detection unit 111. In some specific embodiments, when the device under test 300 has the audio bias voltage, the first detecting unit 111 is turned on, that is, the MOS transistor Q1 is turned on, and generates a corresponding detection signal according to the operating state of the device under test 300, the relay Q2 connected to the drain of the MOS transistor Q1 is pulled in, the second detecting unit 112 is turned on according to the detection signal, and the second connecting module 130 transmits the test signal to the device under test 300 and receives the feedback signal sent by the device under test 300. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. The condition of audio test when the equipment to be tested 300 is abnormal is avoided, so that the phenomenon that the audio automatic test method has a test blind area is solved, and the test reliability of the equipment to be tested 300 is improved.

In some embodiments, referring to fig. 1 and 2, the second detection unit 112 further includes a diode D1. The diode D1 is electrically connected to the first detection unit 111 and the relay Q2, respectively.

Specifically, one end of the diode D1 is connected to one port of the first detection unit 111 and the relay Q2, respectively, and the other end of the diode D1 is connected to the other port of the relay Q2. In some specific embodiments, when the device under test 300 has the audio bias voltage, the first detecting unit 111 is turned on, and generates a corresponding detection signal according to the working state of the device under test 300, the relay Q2 connected to the drain of the MOS transistor Q1 is pulled in, the second detecting unit 112 is turned on according to the detection signal, and the second connecting module 130 transmits the test signal to the device under test 300 and receives the feedback signal sent by the device under test 300. The diode D1 connected in parallel with the relay Q2 can prevent the counter electromotive force generated when the coil of the relay Q2 is powered on and off from damaging other devices.

In some embodiments, referring to fig. 1 and 2, the first connection module 120 further includes a receiving unit 121 and a transmitting unit 122. The receiving unit 121 is electrically connected to the data acquisition device 200 and the second detection unit 112, respectively, and is configured to send a test signal; the sending unit 122 is electrically connected to the data acquisition device 200 and the second connection module 130, respectively, and is configured to receive the feedback signal; the data acquisition device 200 is configured to perform an audio test on the device under test 300 according to the test signal and the feedback signal.

Specifically, when the data acquisition device 200 sends a test signal for performing an audio test on the device to be tested 300, the receiving unit 121 receives the test signal sent by the data acquisition device 200, the detecting module 110 detects a working state of the device to be tested 300, when the device to be tested 300 has an audio offset voltage, the first detecting unit 111 is turned on and generates a corresponding detection signal according to the working state of the device to be tested 300, the second detecting unit 112 is turned on according to the detection signal, and the second connecting module 130 transmits the test signal into the device to be tested 300 and receives a feedback signal sent by the device to be tested 300. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. The condition of audio test when the equipment to be tested 300 is abnormal is avoided, so that the phenomenon that the audio automatic test method has a test blind area is solved, and the test reliability of the equipment to be tested 300 is improved.

In some embodiments, referring to fig. 1 and 2, the audio detection circuit 100 further includes a second capacitor C2. The second capacitor C2 is electrically connected to the second connection module 130 and the second detection unit 112, respectively. Specifically, one end of the second capacitor C2 is electrically connected to the relay Q2, and the other end of the second capacitor C2 is electrically connected to one end of the first capacitor C1 and one end of the first resistor R1.

In some embodiments, referring to fig. 1, the present invention further provides an audio detection apparatus 400 including the audio detection circuit 100 of the above-described embodiment.

Specifically, the detection module 110 controls the audio detection circuit 100 to be turned on or off by detecting the operating state of the device 300 under test, that is, detecting whether the audio bias voltage exists in the device 300 under test. For example, when the data acquisition device 200 sends a test signal for performing an audio test on the device to be tested 300, the first connection module 120 receives the test signal sent by the data acquisition device 200, and when the detection module detects that an audio offset voltage exists in the device to be tested 300, it indicates that the working state of the device to be tested 300 is normal; otherwise, it indicates that the working state of the device under test 300 is abnormal. Under the condition that the device under test 300 is in a normal working state, the detection module 110 and the second connection module 130 are both turned on, and at this time, the data acquisition device 200 transmits the test signal to the device under test 300 through the detection module 110 and the second connection module 130 and receives the feedback signal of the device under test 300. The data collection device 200 determines the audio test result of the device under test 300 by comparing the test signal with the feedback signal. If the test signal received by the data acquisition device 200 is consistent with the feedback signal, the audio function of the device 300 to be tested is normal; otherwise, the audio function of the device under test 300 is abnormal. The condition of audio test when the equipment to be tested 300 is abnormal is avoided, so that the phenomenon that the audio automatic test method has a test blind area is solved, and the test reliability of the equipment to be tested 300 is improved.

In some embodiments, referring to fig. 1 and fig. 3, the present invention further provides an audio detection system, which includes a data acquisition device 200, an audio detection device 400 according to the above embodiment, and a device under test 300. The data acquisition device 200 comprises a data acquisition card 210 and a control device 220, wherein the data acquisition card 210 is used for sending a test signal, and the data acquisition card 210 is connected with the control device 220; one end of the audio detection device 400 is electrically connected to the data acquisition card 210; the device under test 300 is connected to the other end of the audio detection device 400 for generating a feedback signal. The control device 220 is configured to perform an audio test on the device under test 300 according to the test signal and the feedback signal.

Specifically, the receiving unit 121 of the audio detecting device 400 is electrically connected to the MIC interface of the data acquisition card 210, and the transmitting unit 122 of the audio detecting device 400 is electrically connected to the SPK port of the data acquisition card 210. In some specific embodiments, the data acquisition device 200 controls the data acquisition card 210 to send a test signal, the receiving unit 121 receives the test signal sent by the data acquisition device 200, the detecting module 110 detects a working state of the device under test 300, when the device under test 300 has an audio offset voltage, the first detecting unit 111 is turned on and generates a corresponding detection signal according to the working state of the device under test 300, the second detecting unit 112 is turned on according to the detection signal, and the second connecting module 130 transmits the test signal to the device under test 300 and receives a feedback signal sent by the device under test 300. The sending unit sends the received feedback signal to the data acquisition card 210, and the control device 220 compares the test signal with the feedback signal to determine the audio test result of the device under test 300, for the device under test 300. If the test signal output by the data acquisition card 210 is consistent with the feedback signal output by the device under test 300, the audio function of the device under test 300 is normal; otherwise, the audio function of the device under test 300 is abnormal.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.