CN113220517B - Operating time-consuming test system, signal processing device and signal processing method - Google Patents

Abstract

The application provides an operation time-consuming test system, a signal processing device and a signal processing method, wherein the system comprises the signal processing device, a pickup device, a touch device and a device to be tested, and the touch device is used for contacting a touch screen of the device to be tested and generating a pressure signal; the device to be tested is used for detecting a touch signal and outputting a sound signal according to the touch signal; the pickup equipment is used for collecting sound signals; the signal processing equipment is used for acquiring the pressure signal and the sound signal, and determining the operation time consumption of a preset operation according to the pressure signal and the sound signal, wherein the preset operation refers to the following operation executed by the equipment to be tested: and detecting a touch signal and outputting a sound signal according to the touch signal. According to the embodiment of the application, the efficiency and the accuracy of testing the delay of the screen touch sounding loop of the electronic equipment are improved.

Description

Operation time-consuming test system, signal processing device and signal processing method

technical field

The present application relates to the technical field of testing, and in particular to an operation time-consuming testing system, signal processing equipment and a signal processing method.

Background technique

At present, smart electronic devices can basically operate the operating system or applications through touch, such as shooting games through the touch screen to shoot, and piano applications through touch black and white keys to produce music. The delay from the touch screen to the device (speaker/headphone/Bluetooth headset) is directly related to the user's experience of using instant feedback applications, such as shooting games, music applications, etc. The higher the delay, the worse the user experience. The lower the latency, the more realistic the user experience. Therefore, the delay test of the screen touch sound loop on the electronic device is a technical problem that needs to be solved urgently.

Contents of the invention

The present application provides an operation time-consuming test system, a signal processing device and a signal processing method, in order to improve the efficiency and accuracy of testing the delay of the screen touch sound loop of the electronic device.

In the first aspect, an embodiment of the present application provides a time-consuming test system for operation, including a signal processing device, a sound pickup device, a touch device, and a device under test. The signal processing device is respectively connected to the sound pickup device and the touch control equipment, among which,

The touch device is used to contact the touch screen of the device under test to generate a pressure signal;

The device under test is configured to detect a touch signal when the touch device touches the touch screen, and output a sound signal according to the touch signal;

The sound pickup device is used to collect the sound signal;

The signal processing device is configured to collect the pressure signal and the sound signal, and determine the operation time of a preset operation according to the pressure signal and the sound signal, and the preset operation refers to the device under test The following operations are performed: detecting the touch signal, and outputting a sound signal according to the touch signal.

It can be seen that in the embodiment of the present application, since the touch device and the sound pickup device can simulate the delay of the complete circuit from the user touching the screen to hearing the sound, the signal processing device can automatically calculate the delay, thereby simplifying manual operation and improving the test performance. efficiency and accuracy.

In the second aspect, the embodiment of the present application provides a signal processing device, the signal processing device is the signal processing device in the operation time-consuming test system according to any one of the first aspect.

In a third aspect, an embodiment of the present application provides a signal processing method, which is applied to a signal processing device, and the method includes the steps performed by the signal processing device in the time-consuming test system according to any one of the first aspect.

Description of drawings

Fig. 1a is a schematic diagram of the architecture of an operation time-consuming test system 10 provided by an embodiment of the present application;

FIG. 1b is a schematic structural diagram of a signal processing device 100 provided by an embodiment of the present application;

Fig. 1c is an example diagram of a signal waveform diagram provided by an embodiment of the present application;

FIG. 1d is a schematic structural diagram of a touch device 300 provided by an embodiment of the present application;

FIG. 1e is a schematic structural diagram of a device under test 400 provided in an embodiment of the present application;

FIG. 1f is a schematic structural diagram of a signal processing device 100 provided in an embodiment of the present application;

Fig. 1g is an example diagram of a delay detection interface provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a signal processing device provided in an embodiment of the present application;

Fig. 3 is a schematic flowchart of a signal processing method provided by an embodiment of the present application.

detailed description

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

"At least one" in this application means one or more, and multiple means two or more. In this application and/or, describing the association relationship of associated objects means that there may be three kinds of relationships, for example, A and/or B, which may mean: A exists alone, A and B exist at the same time, and B exists alone, where A , B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural item(s). For example, at least one item (unit) of a, b or c can represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein a, b, c Each of the can be itself an element, or a collection containing one or more elements.

It should be pointed out that the equals mentioned in the embodiment of the present application can be used in conjunction with greater than, and applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, applicable to the technical solution adopted when less than, it should be noted that, When equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than. In the embodiment of the present application, "of", "corresponding, relevant" and "corresponding (corresponding)" can sometimes be mixed, and it should be pointed out that when the difference is not emphasized, the meanings to be expressed is consistent.

First, some nouns involved in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

1. User equipment (UE). In the embodiment of the present application, the user equipment is a device with a wireless transceiver function, which may be called a terminal (terminal), a terminal device, a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and an access terminal device. , vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. User equipment may be fixed or mobile. It should be noted that the user equipment may support at least one wireless communication technology, such as LTE, new radio (new radio, NR), wideband code division multiple access (wideband code division multiple access, WCDMA), and so on. For example, the user equipment may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistants, PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications A terminal device in a network or a terminal device in a future evolved public mobile land network (public landmobile network, PLMN), etc. In some embodiments of the present application, the user equipment may also be a device capable of transmitting and receiving, such as a chip system. Wherein, the chip system may include a chip, and may also include other discrete devices.

At present, the delay test of the screen touch sound loop on the electronic device is to use an additional mobile phone to shoot the device under test at a high frame rate, copy the captured video to the computer, and manually check the image track frame by frame. The delay is calculated by taking the color change of a certain area of the screen as the start signal, and the time point when the sound signal of the audio track in the video changes as the end signal. The delay test of the screen touch sound loop is incomplete, lacking the delay from when the screen is clicked to the color change reaction. Generally speaking, this part of the delay is about 100ms, and it is difficult to ensure that the image and audio track of the mobile phone shooting the test action are synchronized Acquisition, out-of-sync will introduce errors. Different mobile phones are used to shoot, and the delay values obtained are not consistent. This error is caused by the out-of-synchronization of the image and sound collection of the mobile phone. It needs to be manually viewed frame by frame, which is inefficient.

In view of the above problems, embodiments of the present application provide a time-consuming operation test system, a signal processing device, and a signal processing method, which will be described below with reference to the accompanying drawings.

Please refer to Fig. 1a, Fig. 1a is a schematic diagram of the structure of a time-consuming operation test system 10 provided by the embodiment of the present application. The time-consuming operation test system 10 includes a signal processing device 100, a sound pickup device 200, a touch device 300 and Device 400, the signal processing device is respectively connected to the sound pickup device and the touch device, wherein,

The touch device 300 is used to contact the touch screen 410 of the device under test 400 to generate a pressure signal.

Wherein, the touch device 300 simulates a scene in which a human hand touches the display screen by touching the touch screen 410 .

As an example, the touch device 300 may be a stylus.

The device under test 400 is configured to detect a touch signal when the touch device 300 touches the touch screen 410 , and output a sound signal according to the touch signal.

As an example, the device under test 400 may be, for example, the aforementioned user equipment, a mobile phone, a tablet, and the like.

The sound pickup device 200 is configured to collect the sound signal.

As an example, the sound pickup device 200 may be a high-sensitivity microphone.

The signal processing device 100 is configured to collect the pressure signal and the sound signal, and determine the time-consuming operation of a preset operation according to the pressure signal and the sound signal, and the preset operation refers to the The operation performed by the device 400 is as follows: detecting the touch signal, and outputting a sound signal according to the touch signal.

As an example, the signal processing device 100 may be a platform device integrating a computer, a sound card, and a pressure-strain signal acquisition card, and run a code for testing the delay of the screen touch sound loop. The platform device simulates the user's brain to perceive the delay of the screen touch sound circuit, and gives delay feedback at the ms level.

It can be seen that in the embodiment of the present application, since the touch device and the sound pickup device can simulate the delay of the complete circuit from the user touching the screen to hearing the sound, the signal processing device can automatically calculate the delay, thereby simplifying manual operation and improving the test performance. efficiency and accuracy.

In some embodiments, please refer to FIG. 1b. FIG. 1b is a schematic structural diagram of a signal processing device 100 provided in an embodiment of the present application; the signal processing device 100 is provided with an on-board clock 110, a sound card 120, and pressure and strain signal acquisition Card 130, the onboard clock 110 is respectively connected to the sound card 120 and the pressure and strain signal acquisition card 130;

The on-board clock 110 is used for providing a first sampling clock for the sound card 120, and for providing a second sampling clock for the pressure and strain signal acquisition card 130;

The sound card 120 is configured to collect the sound signal;

The pressure and strain signal acquisition card 130 is used to acquire the pressure signal.

As an example, the offset between the first sampling clock and the second sampling clock is less than 10 microseconds, and the highest synchronous sampling frequency can be set to 100 KHz.

It can be seen that in this example, the signal processing equipment can achieve 0.01ms (far lower than the human reaction time) level sound and strain synchronous acquisition accuracy, thereby eliminating the error caused by asynchronous signal acquisition, and accurately calculating the sound circuit of the screen touch Delay.

In some embodiments, the signal processing device 100 is specifically configured to: determine a first time according to the pressure signal, and the first time is used to indicate the time of the first touch signal detected by the device under test 400 time, the first touch signal corresponds to the start time when the touch device 300 is in contact with the touch screen 410; and a second time is determined according to the sound signal, and the second time is used to indicate the The starting moment of the sounding of the device under test 400; and determining the operation time of the first preset operation according to the first time and the second time, the preset operation refers to the operation performed by the device under test 400 The operation is as follows: the first touch signal is detected, and a sound signal is output according to the first touch signal.

Wherein, the operation time obtained by subtracting the first time from the second time corresponds to the delay of the screen touch sound output circuit in the scene where the touch touch produces sound.

It can be seen that in this example, the signal processing device can accurately calculate the delay of the screen touch sound output loop in the scene where the sound is produced upon touch.

In some embodiments, the signal processing device 100 is specifically configured to: generate a signal waveform diagram according to the collected pressure signal and the sound signal, identify the first rising edge pulse signal and the For the second rising edge pulse signal, determine the first time corresponding to the first rising edge pulse signal, and determine the second time corresponding to the second rising edge pulse signal.

In the specific implementation, when the touch device is used to simulate the user's touch screen, because the touch device integrates a strain sensor (pressure detection unit), when the strain changes, the voltage signal will change at the same time. When the touch device leaves the screen, the strain After recovering, the voltage will also return to a stable state, so that during the entire touch process, the touch device will generate a pulse signal, in which the rising edge corresponds to the moment T1 when it first touches the screen (that is, the first time), and the falling edge corresponds to the moment when it leaves the screen T2 (that is, the third time), the width of the pulse signal corresponds to the time when the touch device applies pressure and touches the screen. The electronic device detects the touch signal of the touch screen, and through a series of internal signal processing, including screen response, network response, system response, etc., finally stimulates devices such as speakers to emit sound signals, and this sound signal will be placed near the device Acquired by sound pickup equipment. The change of the sound signal received by the pickup device will be converted into a change of the voltage signal, and the voltage signal will be collected by the sound card. In the sound environment, the voltage signal generated by the pickup device that receives the sound signal will change significantly compared with the voltage signal generated in the quiet environment, so it is possible to detect when the device is sounding by setting a threshold value for the voltage waveform. The moment T3 (ie the second time).

For the scene where the sound is produced when the touch is touched, the loop delay value of the sound produced by the screen touch is: ΔT1=T3-T1.

For the scene where the sound is produced after the touch is released, the loop delay value of the screen touch sound is: ΔT2=T3-T2.

For example, as shown in Figure 1c, Figure 1c is an example diagram of a signal waveform diagram provided by the embodiment of the present application, wherein the dotted line is the voltage signal collected by the pressure and strain signal acquisition card, and the solid line is the voltage collected by the sound card The signal waveform can quickly calculate the time values of T1, T2, and T3 by detecting the threshold. Therefore, according to the formula mentioned above, the delay of the screen touch sound output loop is calculated.

It can be seen that in this example, the signal processing device can analyze and identify critical moments through signal waveform diagram analysis, and accurately calculate the delay of the screen touch sound output loop in the scene where the sound is produced when the touch is touched.

In some embodiments, the signal processing device 100 is specifically configured to: determine a third time according to the pressure signal, and the third time is used to indicate the time of the second touch signal detected by the device under test 400 time, the second touch signal corresponds to the termination time of the contact between the touch device 300 and the touch screen 410; and the second time is determined according to the sound signal, and the second time is used to indicate the waiting the starting moment of the sounding of the device under test 400; The following operation: detect the second touch signal, and output a sound signal according to the second touch signal.

Among them, the operation time obtained by subtracting the first time from the third time is the delay of the screen touch sound circuit in the scene where the touch is released and the sound is produced.

It can be seen that in this example, the signal processing device can accurately calculate the delay of the screen touch sound output loop in the scene where the touch is released and the sound is produced.

In some embodiments, the signal processing device 100 is specifically configured to: generate a signal waveform diagram according to the pressure signal and the sound signal, and identify a falling edge pulse signal and a second rising edge in the pressure signal waveform diagram A pulse signal, determining the third time corresponding to the falling edge pulse signal, and determining the second time corresponding to the second rising edge pulse signal.

It can be seen that in this example, the signal processing device can analyze and identify critical moments through signal waveform diagram analysis, and accurately calculate the delay of the screen touch sound loop in the scene where the touch is released and the sound is produced.

In some embodiments, please refer to FIG. 1d. FIG. 1d is a schematic structural diagram of a touch device 300 provided in an embodiment of the present application; the touch device 300 is integrated with a pressure detection unit 310, and the pressure detection unit 310 uses to generate the pressure signal.

Wherein, the touch device may be a stylus with a pen head integrated with a pressure strain sensor.

It can be seen that in this example, when the touch device is in contact with the touch screen of the device under test, strain will occur, resulting in a change in voltage signal, which will be collected by the pressure and strain signal acquisition card integrated in the signal processing device . The touch device realizes the operation of simulating the user touching the screen by hand.

In some embodiments, please refer to FIG. 1e. FIG. 1e is a schematic structural diagram of a device under test 400 provided in an embodiment of the present application; the device under test 400 includes a speaker 420, and the speaker 420 is used to output the sound signal.

It can be seen that in this example, the device under test implements playing sound signals through a speaker.

In some embodiments, please refer to FIG. 1f. FIG. 1f is a schematic structural diagram of a signal processing device 100 provided in an embodiment of the present application; the signal processing device 100 also includes a display screen 140, and the signal processing device 100 also uses A delay detection interface is displayed on the display screen 140, and the delay detection interface is used to set at least one of the following parameters: sampling rate, acquisition length, test scheme, file saving path, and filter configuration.

Among them, the sampling rate is used to set the sampling frequency of the sound signal and the pressure signal synchronously, the sampling length corresponds to the sampling time, and the test scheme corresponds to different optional modes. In the second mode, filter configuration is used to configure specific filtering parameters and the like.

For example, the example diagram of the delay detection interface shown in Figure 1g includes a waveform display area and a function configuration area. The waveform display area displays coordinate information, and the function configuration area displays start test, stop test, and time-consuming calculation. Result display components etc.

It can be seen that in this example, the signal processing device supports intuitive presentation of delay calculation results and auxiliary parameter configuration through an interface.

Please refer to FIG. 2 . FIG. 2 is a schematic structural diagram of a signal processing device 100 provided by an embodiment of the present application. The signal processing device 100 includes a processor 150 , an onboard clock 110 , a sound card 120 , a pressure and strain signal acquisition card 130 and A display screen 140, the onboard clock 110 is respectively connected to the sound card 120 and the pressure and strain signal acquisition card 130, and the processor 150, and the processor 150 is connected to the display screen 140;

The on-board clock 110 is used for providing a first sampling clock for the sound card 120, and for providing a second sampling clock for the pressure and strain signal acquisition card 130;

The sound card 120 is configured to collect the sound signal;

The pressure and strain signal acquisition card 130 is used to acquire the pressure signal.

The signal processing device 100 is further configured to display a delay detection interface on the display screen 140, and the delay detection interface is used to set at least one of the following parameters: sampling rate, acquisition length, test scheme, file storage path, filter configuration.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a signal processing method provided in an embodiment of the present application, which is applied to a signal processing device. The method includes the following steps:

Step 301, collecting a pressure signal and a sound signal, the pressure signal is a signal generated by the touch device when it touches the touch screen of the device under test, and the sound signal is the sound signal collected by the sound pickup device and output by the device under test according to the touch signal, The touch signal is a signal detected by the device under test when the touch device touches the touch screen.

Step 302: Determine the time-consuming operation of a preset operation according to the pressure signal and the sound signal. The preset operation refers to the following operations performed by the device under test: the touch signal is detected, and according to The touch signal outputs a sound signal.

It can be seen that in the embodiment of the present application, since the touch device and the sound pickup device can simulate the delay of the complete circuit from the user touching the screen to hearing the sound, the signal processing device can automatically calculate the delay, thereby simplifying manual operation and improving the test performance. efficiency and accuracy.

The above-mentioned embodiments may be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of computer program products. The computer program product comprises one or more computer instructions or computer programs. When the computer instruction or computer program is loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Wired or wireless transmission to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center that includes one or more sets of available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.

An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute some or all of the steps of any method described in the above method embodiments , the above-mentioned computer includes electronic equipment.

An embodiment of the present application also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable the computer to execute any one of the methods described in the above method embodiments. Some or all steps of the method. The computer program product may be a software installation package, and the computer includes electronic equipment.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

In the several embodiments provided in this application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units may be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc., which can store program codes. medium.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present invention, can easily think of changes or replacements, and can make various changes and modifications, including the combination of the above-mentioned different functions and implementation steps, including the implementation of software and hardware way, all within the protection scope of the present invention.

Claims (5)

1. A time-consuming test system for operation, characterized in that it comprises a signal processing device, a sound pickup device, a touch device and a device to be tested, and the signal processing device is connected to the sound pickup device and the touch device respectively, in, The touch device is used to contact the touch screen of the device under test to generate a pressure signal; The device under test is configured to detect a touch signal when the touch device touches the touch screen, and output a sound signal according to the touch signal; The sound pickup device is used to collect the sound signal; The signal processing device is provided with an on-board clock, a sound card and a pressure-strain signal acquisition card, and the on-board clock is connected to the sound card and the pressure-strain signal acquisition card respectively; The onboard clock is used to provide a first sampling clock for the sound card, and to provide a second sampling clock for the pressure and strain signal acquisition card; The pressure and strain signal acquisition card is configured to acquire the pressure signal, and make the signal processing device determine a first time according to the pressure signal, and the first time is used to indicate the first time detected by the device under test. The moment of a touch signal, the first touch signal corresponds to the start moment or end moment of contact between the touch device and the touch screen; The sound card is configured to collect the sound signal, and enable the signal processing device to determine a second time according to the sound signal, and the second time is used to indicate the start moment of the sounding of the device under test; The signal processing device is configured to generate a signal waveform diagram according to the collected pressure signal and the sound signal, and the signal waveform diagram includes the first voltage signal waveform collected by the pressure and strain signal acquisition card, and the first voltage signal waveform collected by the sound card. The second voltage signal waveform; In the scenario where sound is produced upon touch, the signal processing device is configured to identify a first rising edge pulse signal in the first voltage signal waveform, and determine a time corresponding to a rising edge in the first rising edge pulse signal is the first time, and the first rising edge pulse signal corresponds to the moment when the touch screen is initially touched; In the scene where the sound is produced only after the touch is released, the signal processing device is configured to identify the falling edge pulse signal in the waveform of the first voltage signal, and determine the time corresponding to the falling edge in the falling edge pulse signal as the first a time; The signal processing device is further configured to detect a threshold in the waveform of the second voltage signal, determine a second rising edge pulse signal according to the threshold, and determine that the time corresponding to the rising edge in the second rising edge pulse signal is the the second time; The signal processing device is further configured to determine the time-consuming operation of a preset operation according to the first time and the second time, the preset operation refers to the following operations performed by the device under test: detecting the first touch signal, and output a sound signal according to the first touch signal. 2 . The system according to claim 1 , wherein the touch control device is integrated with a pressure detection unit, and the pressure detection unit is used to generate the pressure signal. 3 . 3. The system according to claim 1, wherein the signal processing device further comprises a display screen, and the signal processing device is also used to display a delay detection interface on the display screen, and the delay detection interface uses It is used to set at least one of the following parameters: sampling rate, acquisition length, test scheme, file saving path, and filter configuration. 4. A signal processing device, characterized in that the signal processing device is the signal processing device in the time-consuming operation test system according to any one of claims 1 to 3. 5. A signal processing method, characterized in that it is applied to a signal processing device, said method comprising the steps performed by the signal processing device in the operation time-consuming test system according to any one of claims 1 to 3.

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