Vehicle-mounted acoustic tuning test system and automobile

Abstract

The invention relates to the technical field of automobile intelligent cabin vision, and discloses a vehicle-mounted acoustic tuning test system and an automobile, and the system comprises a test terminal which is connected with a real vehicle platform and a simulation sound box, and is used for transmitting a first preset audio frequency to the simulation sound box according to a project test demand; the simulation sound equipment is used for playing a first preset audio; the real vehicle platform comprises a vehicle-mounted terminal and a recording device connected with the vehicle-mounted terminal, the recording device is used for acquiring first audio information corresponding to the first preset audio, and the vehicle-mounted terminal is used for sending the first audio information to the test terminal; and the test terminal is also used for testing whether the first audio information reaches the standard or not. By building the test bench, automatic audio testing can be achieved based on the test terminal, technicians do not need to conduct field testing, the audio testing efficiency is improved, then the vehicle-mounted acoustic tuning efficiency is improved, and the project implementation period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted intelligent cockpits, and in particular to a vehicle-mounted acoustic tuning test system and a vehicle. Background Art

[0002] With the development of the automotive industry, the field of smart cockpits has flourished, and various ecological application products have been implemented in the cockpit. Among them, the voice module is one of the important core products in the smart cockpit. However, due to the particularity of voice interaction, that is, the voice wake-up recognition effect has a strong dependence on the hardware of the actual vehicle (microphone, speaker, seat material, etc.), the cabin layout and the system audio link, so when each vehicle model project is delivered, a lot of manpower and time resources need to be invested in the acoustic tuning stage of the voice to ensure the audio quality effect of the acoustic front end, so that the back-end voice wake-up recognition and other performance can have better results.

[0003] At present, in the industry, the process of tuning the in-vehicle voice acoustic front-end to ensure the front-end audio quality basically relies heavily on on-site implementation by real vehicle resources and professional technicians in good condition. Therefore, the disadvantages of the existing solutions are: extremely high requirements for project resources, long implementation cycle, and it is difficult to guarantee the implementation effect for projects with short delivery cycles, resulting in low efficiency of in-vehicle acoustic tuning. Summary of the invention

[0004] In view of this, the present invention provides a vehicle-mounted acoustic tuning test system and a vehicle to solve the problem of low efficiency of vehicle-mounted acoustic tuning.

[0005] In a first aspect, the present invention provides a vehicle-mounted acoustic tuning test system, the system comprising: a test terminal, a real vehicle platform and a simulated sound system, wherein:

[0006] The test terminal is connected to the real vehicle platform and the simulation sound system respectively, and is used to send the first preset audio to the simulation sound system according to the project test requirements;

[0007] A simulated audio system, used for playing a first preset audio;

[0008] The real vehicle platform includes a vehicle terminal and a recording device connected to the vehicle terminal, the recording device is used to obtain first audio information corresponding to a first preset audio, and the vehicle terminal is used to send the first audio information to the test terminal;

[0009] The test terminal is also used to test whether the first audio information meets the standards.

[0010] The vehicle acoustic tuning test system provided by the embodiment of the present invention connects the test terminal with the simulated audio and the real vehicle platform, the test terminal sends the first preset audio to the simulated audio, after the simulated audio plays the first preset audio, the recording device of the real vehicle platform obtains the corresponding first audio information, the vehicle terminal of the real vehicle platform sends the first audio information to the test terminal, and the test terminal tests whether the first preset audio meets the standard. By building a test bench, the present invention can realize automated audio testing based on the test terminal, without the need for technical personnel to perform on-site testing, thereby improving the efficiency of audio testing, thereby improving the efficiency of vehicle acoustic tuning, and shortening the project implementation cycle.

[0011] In an optional implementation, the test terminal is connected to the vehicle terminal by hardware via a universal serial bus.

[0012] The present invention can realize data communication between the test terminal and the vehicle computer end by hardware connection between the test terminal and the vehicle computer end, so that the audio information received by the actual vehicle platform is sent to the terminal device for audio analysis, thereby realizing automated audio testing.

[0013] In an optional implementation, the test terminal is deployed as an Android debugging environment, and a preset audio analysis software is installed in the Android debugging environment to analyze the received audio information; the vehicle terminal is deployed as an Android system, and a preset recording software is installed in the Android system to store the received audio information.

[0014] The present invention can provide a convenient and fast debugging environment for audio testing by deploying the test terminal and the vehicle terminal as an Android environment, and can ensure the feasibility of automated audio testing through the matching Android environment.

[0015] In an optional implementation, the vehicle terminal obtains the first preset audio of the recording device through a preset interface of the Android system, and prohibits other recording devices from calling the preset interface through a preset Android debugging command.

[0016] The present invention can avoid the influence on the quality of the audio collected by the current recording device by disabling the calling of the interface by other recording devices, thereby ensuring the reliability of the test result.

[0017] In an optional implementation, the real vehicle platform further includes: an audio playback device connected to the vehicle terminal, the recording device and the audio playback device are deployed according to the real vehicle sound zone, and the audio playback device is used to play the second preset audio.

[0018] In an optional embodiment, the test terminal is also used to generate an audio playback control instruction, and send the audio playback control instruction to the audio playback device through the vehicle end; when the audio playback device plays the second preset audio, the recording device is also used to obtain second audio information corresponding to the second preset audio, and the vehicle end sends the second audio information to the test terminal; the test terminal is also used to test whether the second audio information meets the standards.

[0019] The present invention can simulate whether the audio playback function of the vehicle system itself is normal through the audio playback device, thereby acoustically optimizing the audio playback function of the vehicle system to ensure that the quality of the played audio meets the standard.

[0020] In an optional implementation, the test terminal is further configured to adjust the volume of the first preset audio according to project test requirements, or generate a volume control instruction corresponding to the second preset audio.

[0021] The present invention can fully test the audio playback function or the audio reception function of the vehicle system by adjusting the volume of the played audio.

[0022] In an optional embodiment, the test terminal is also used to test whether the first audio information meets the standard, or the test terminal is also used to test whether the second audio information meets the standard, including: comparing and analyzing the first audio information or the second audio information with the corresponding reference audio information through preset audio analysis software to obtain an audio quality index; judging whether the audio quality index meets the standard according to preset technical indicators; the audio quality index includes at least one of the following: audio amplitude, distortion, delay, frame loss and jitter.

[0023] By analyzing the audio quality, the present invention can determine whether the upper-layer voice link of the current vehicle system can ensure that the audio quality meets the standard, thereby providing a reference for the acoustic tuning of the vehicle system, so that the voice wake-up, voice recognition and other performances of the vehicle system can achieve better results.

[0024] In some optional implementations, the vehicle terminal stores the first audio information, the second preset audio, and the reference audio information corresponding to the first audio information or the second preset audio in a preset directory through a preset recording software.

[0025] The present invention stores audio on the vehicle side, can play designated audio, meet project testing requirements, automatically call corresponding audio files according to the process, and realize automation of audio testing.

[0026] In an optional embodiment, the real vehicle platform also includes: a decibel detector, deployed near the recording equipment, connected to the test terminal, and used to detect the decibel value of the first audio information. The test terminal controls the decibel value of the first preset audio to be lower than the preset decibel threshold according to the decibel value.

[0027] In a second aspect, the present invention provides a car, comprising: a vehicle terminal, and a recording device and an audio playback device connected to the vehicle terminal; the recording device is used to collect audio information; the audio playback device is used to play preset audio; and the vehicle terminal is used to send the audio information to a test terminal.

[0028] The present invention can meet the upper limit of the sound reception of the vehicle recording device by deploying a decibel detector, avoid the problem of audio clipping, and ensure the audio quality.

[0029] Beneficial effects of the present invention:

[0030] (1) The present invention can complete the hardware environment preparation of the test bench by deploying a real vehicle platform and connecting the real vehicle platform and the simulated audio based on the test terminal, thereby realizing automated audio testing, eliminating the need for technicians to perform on-site testing, improving audio testing efficiency, and further improving the efficiency of vehicle-mounted acoustic tuning, thereby shortening the project implementation cycle;

[0031] (2) By deploying recording equipment and audio playback equipment on a real vehicle platform, the present invention can simulate the real person's voice based on the simulated sound to implement the radio function test of the vehicle system, and implement the audio playback function test based on the audio played by the vehicle itself, thereby providing a reference basis for acoustic tuning. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is a schematic diagram of a manual test process of a vehicle-mounted acoustic tuning test system according to an embodiment of the present invention;

[0034] Figure 2 is a structural block diagram of a test system for vehicle-mounted acoustic tuning according to an embodiment of the present invention;

[0035] Figure 3 is a schematic diagram of the hardware layout of a test system for vehicle-mounted acoustic tuning according to an embodiment of the present invention;

[0036] Figure 4 is a schematic diagram of a software environment of a vehicle-mounted acoustic tuning test system according to an embodiment of the present invention;

[0037] Figure 5 is a structural block diagram of another vehicle-mounted acoustic tuning test system according to an embodiment of the present invention;

[0038] Figure 6 The figure is a schematic diagram of an automatic test flow of another vehicle-mounted acoustic tuning test system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0040] The embodiment of the present invention is applicable to the scenario of acoustic tuning of the voice module of the vehicle system before the vehicle is delivered. The relevant technology relies on real vehicle resources and professional technicians to implement on site. The implementation process is as follows: Figure 1 As shown, after the supplier provides the actual vehicle, an acoustic professional conducts on-site testing, confirms the current audio test status of the actual vehicle, and performs acoustic tuning based on the existing status to ensure that the calibration parameters are achieved, resulting in low test efficiency. Therefore, an embodiment of the present invention provides a vehicle-mounted acoustic tuning test system, which achieves the effect of automated audio testing by building a test bench and performing audio playback and audio analysis based on the test bench.

[0041] According to an embodiment of the present invention, a test system embodiment for vehicle-mounted acoustic tuning is provided. It should be noted that, as used below, the term "module" may be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceivable.

[0042] In this embodiment, a vehicle-mounted acoustic tuning test system is provided. Figure 2 is a structural block diagram of a test system for vehicle-mounted acoustic tuning according to an embodiment of the present invention, such as Figure 2 As shown, the system includes: a test terminal 100, a real vehicle platform 200 and a simulation sound 300, wherein:

[0043] The test terminal 100 is connected to the real vehicle platform 200 and the simulation sound 300 respectively, and is used to send the first preset audio to the simulation sound according to the project test requirements;

[0044] The simulated audio 300 is used to play a first preset audio;

[0045] The real vehicle platform 200 includes a vehicle terminal 201 and a recording device 202 connected to the vehicle terminal, the recording device 202 is used to obtain first audio information corresponding to a first preset audio, and the vehicle terminal 201 is used to send the first audio information to the test terminal;

[0046] The test terminal 100 is also used to test whether the first audio information meets the standard.

[0047] Specifically, in the embodiment of the present invention, Figure 3 As shown, a laptop computer with Windows system and Excel processing capabilities is used as the test terminal 100, and a microphone is used as the recording device 202 of the real vehicle platform 200. The orientation, horizontal and vertical positions of the microphone need to be close to the actual layout of the real vehicle. At the same time, the laptop computer is connected to the vehicle terminal 201 through a double-headed Universal Serial Bus (USB), wherein USB is an external bus standard that regulates the connection and communication between the computer and the external device, and realizes the connection and communication between the laptop computer and the vehicle terminal 201 in the embodiment of the present invention. The simulation sound 300 has a matching connection line, a power line and a sound card, which is connected to the laptop computer and placed on the upper part of the main and co-pilot seats of the real vehicle platform 200, and ensures that the distance between the simulation sound and the microphone is greater than 90cm. As a sound source playback device for audio testing, it is equivalent to the state of a real person sitting in the main and co-pilot seats. In addition, the test system also includes auxiliary equipment such as a power supply and a wiring harness, wherein the power supply is used to provide power to the test bench, and the wiring harness is used to connect various parts of the equipment, such as connecting the microphone to the vehicle terminal 201, etc., and finally completes the installation of the test bench hardware environment.

[0048] In some optional implementations, considering that the Android operating system is currently the most widely used mobile operating system in the world, it not only occupies a dominant position in the field of intelligent control, but is also widely used in various smart devices such as tablets, smart TVs, smart watches, etc., and can meet the diverse needs of developers and provide users with more comprehensive applications and services. In this embodiment of the present invention, the laptop is deployed as an Android debugging environment, and audio analysis software is installed in the Android debugging environment, such as Audition, EditCood and other third-party audio software, or if there is self-developed audio algorithm capabilities, self-developed audio analysis software can also be used to analyze the audio information received by the laptop, which is not limited here. At the same time, the car terminal 201 is deployed as an Android system, and a third-party Android recording software is installed in the Android system to store the received audio information. Figure 4As shown, based on the established software testing environment, the audio analysis software of the laptop computer can be connected to the Android recording software of the vehicle terminal 201 through the ADB (Android Debug Bridge) cable, so as to control the recording software to play the specified audio or save the audio information through the audio analysis software, and analyze the saved audio information to output the audio quality report. The ADB cable is a tool for connecting an Android device (whether a real mobile phone, a tablet or an Android emulator) to a computer, allowing developers to debug, install applications, transfer files and other operations on Android devices through a computer. There are two main ways of using the ADB cable: wired connection and wireless connection, both of which rely on the ADB tool. The embodiment of the present invention selects a USB cable to directly connect the laptop computer and the vehicle terminal 201, which is only used as an example and is not limited to this.

[0049] In some optional implementations, the car supports voice interaction with the user to achieve functional control of the car, so the user's voice information needs to be recognized. In order to ensure that the car system can receive high-quality user voice information, the car's radio function needs to be tested. Before testing, the embodiment of the present invention stores the first preset audio in the laptop computer in advance. The embodiment of the present invention uses the real person's voice audio as the first preset audio to provide a sound source for the scene simulating the real person's voice.

[0050] In some optional implementations, during the test process of the embodiment of the present invention, the audio of real people's voice is sent to the simulation audio through a laptop computer, and the simulation audio is played by the simulation audio deployed on the upper part of the driver and co-driver seats of the real vehicle platform, simulating the scene of people sitting on the seats and talking in real scenes. The microphone collects the sound and converts it into the corresponding first audio information, and the vehicle terminal 201 obtains the first preset audio of the microphone through the preset interface of the Android system, such as the Audiorecord interface. In order to prevent other applications from using the interface synchronously during the recording process, resulting in the audio quality of the recording being affected, the embodiment of the present invention prohibits other recording devices from calling the preset interface through the preset Android debugging command, such as uninstalling or disabling other recording applications through the adb command, wherein the adb command is an indispensable tool in Android development and debugging, which can provide rich functions and powerful interactive capabilities, allowing developers to manage and operate Android devices more conveniently, for example only, and not limited to this.

[0051] In some optional embodiments, the embodiments of the present invention also deploy a decibel detector near the microphone and connect it to a laptop computer to detect the decibel value of the first audio information. The test terminal controls the decibel value of the first preset audio to be lower than a preset decibel threshold, such as 95DB, according to the decibel value, i.e., to ensure that the received decibel near the microphone is not greater than 95DB, because usually the upper limit of the car microphone is 95DB. If the upper limit is exceeded, the audio will be clipped, thereby failing to guarantee the audio quality. The specific preset decibel threshold is set according to the type of microphone.

[0052] In some optional embodiments, after receiving the first audio information, the laptop computer of the embodiment of the present invention compares and analyzes the first audio information and the corresponding reference audio information through audio analysis software to obtain an audio quality index, and determines whether the audio quality index meets the standard according to preset technical indicators, wherein the audio quality index includes at least one of the following: audio amplitude, distortion, delay, frame loss and jitter, which is only for example and not limited to this.

[0053] The vehicle acoustic tuning test system provided by the embodiment of the present invention connects the test terminal with the simulated audio and the real vehicle platform, the test terminal sends the first preset audio to the simulated audio, after the simulated audio plays the first preset audio, the recording device of the real vehicle platform obtains the corresponding first audio information, the vehicle terminal of the real vehicle platform sends the first audio information to the test terminal, and the test terminal tests whether the first preset audio meets the standard. By building a test bench, the present invention can realize automated audio testing based on the test terminal, without the need for technical personnel to perform on-site testing, thereby improving the efficiency of audio testing, thereby improving the efficiency of vehicle acoustic tuning, and shortening the project implementation cycle.

[0054] In this embodiment, a vehicle-mounted acoustic tuning test system is provided. Figure 5 is a structural block diagram of a test system for vehicle-mounted acoustic tuning according to an embodiment of the present invention, such as Figure 5 As shown, the system includes: a test terminal 100, a real vehicle platform 200 and a simulation sound 300, wherein:

[0055] The test terminal 100 is connected to the real vehicle platform 200 and the simulation sound 300 respectively, and is used to send the first preset audio to the simulation sound according to the project test requirements;

[0056] The simulated audio 300 is used to play a first preset audio;

[0057] The real vehicle platform 200 includes a vehicle terminal 201, and a recording device 202 and an audio playback device 203 connected to the vehicle terminal, the recording device 202 is used to obtain first audio information corresponding to a first preset audio, the vehicle terminal 201 is used to send the first audio information to the test terminal, and the audio playback device 203 is used to play a second preset audio;

[0058] The test terminal 100 is also used to test whether the first audio information meets the standard.

[0059] Specifically, in the embodiment of the present invention, a speaker is used as the audio playback device 203 of the real vehicle platform 200, but it is not limited to this. Figure 3 As shown, the microphone and the speaker are connected to the vehicle terminal 201 at the same time, and the microphone and the speaker are arranged at the actual spacing of the actual vehicle according to the actual vehicle sound zone, so that the constructed actual vehicle platform is close to the actual arrangement state of the actual vehicle, so that when performing audio testing, it is closer to the audio playback or audio reception situation in the car in the real scene, ensuring the reliability and authenticity of the audio test results.

[0060] In some optional implementations, the vehicle terminal of the embodiment of the present invention stores the first audio information collected by the microphone, the pre-set second preset audio, and the reference audio information corresponding to the first audio information or the second preset audio in a designated directory through Android recording software. The embodiment of the present invention can select the audio type of the second preset audio through a laptop computer, such as media song audio, special noises of different frequencies, and various simulated noises (tire noise, wind noise, etc.), thereby generating an audio playback control instruction, and sending the audio playback control instruction to the vehicle terminal 201, which calls the corresponding second preset audio in the memory and controls the speaker to play the corresponding second preset audio.

[0061] In some optional implementations, after the speaker plays the second preset audio, the microphone on the same real vehicle platform can directly obtain the second audio information corresponding to the second preset audio, and send the second audio information to the laptop computer through the vehicle terminal 201, and the laptop computer tests whether the second audio information meets the standard. Specifically, the laptop computer compares and analyzes the second audio information and the corresponding reference audio information through audio analysis software to obtain an audio quality index, and determines whether the audio quality index meets the standard according to the preset technical index, wherein the audio quality index includes at least one of the following: audio amplitude, distortion, delay, frame loss and jitter, and the test results obtained are shown in the following table:

[0062] Audio quality indicators Index value Whether it meets the standard Amplitude 5000 Meet the Standard distortion 0.01 Meet the Standard Latency 30ms Meet the Standard Frame Drop none Meet the Standard Jitter none Meet the Standard

[0063] In some optional implementations, the embodiment of the present invention can adjust the volume of the first preset audio according to the project test requirements through a laptop computer, or generate a volume control instruction corresponding to the second preset audio to adjust the volume of the second preset audio. The embodiment of the present invention sets different volume intervals according to the actual project, for example: 20%, 50%, 80% and 100% volume scales to simulate different tones of the user speaking in the car, or different volumes of the audio played by the car, which is only used as an example and is not limited to this; audio types of different dimensions can also be adjusted, such as media song audio or noise. According to the project requirements, the embodiment of the present invention saves different volume scales and different test audios to the specified car system directory through the recording software of the car terminal 201, and uses a USB double-headed cable and adb commands to upload the audio saved in the car system to the laptop computer, which is used to test the audio quality of the upper voice link of the car system at different volumes, and provide a reference for acoustic tuning.

[0064] In some optional embodiments, such as Figure 6 As shown, the test platform provided by the embodiment of the present invention starts the test process after preparing the software environment and the hardware environment. When the microphone receives the real-person voice audio, it can analyze it according to the audio information and the corresponding reference audio information, which is equivalent to testing and analyzing the sound receiving function of the upper voice link of the vehicle system; it can also play the preset audio through the speaker, and after the microphone receives the audio, it analyzes it according to the audio information and the corresponding reference audio information, which is equivalent to testing and analyzing the audio playing function of the upper voice link of the vehicle system. The laptop outputs an audio quality report after the audio analysis. If the project indicators are not met, professional technicians are asked to analyze the audio quality of each link in the link. After locating and solving the problem, audio testing is performed according to the embodiment of the present invention until the audio quality report meets the project.

[0065] The vehicle-mounted acoustic tuning test system provided by the embodiment of the present invention connects the test terminal with the simulated audio and the real vehicle platform, the test terminal sends the first preset audio to the simulated audio, after the simulated audio plays the first preset audio, the recording device of the real vehicle platform obtains the corresponding first audio information, the vehicle terminal of the real vehicle platform sends the first audio information to the test terminal, and the test terminal tests whether the first preset audio meets the standard. By building a test bench, the present invention can realize automated audio testing based on the test terminal, without the need for technicians to perform on-site testing, greatly reducing the dependence on real vehicles and professional technicians, improving the efficiency of audio testing, and then improving the efficiency of vehicle-mounted acoustic tuning, shortening the project implementation cycle.

[0066] The embodiment of the present invention further provides a car, such as Figure 5The actual vehicle platform shown includes: a vehicle computer end, and a recording device and an audio playback device connected to the vehicle computer end; the recording device is used to collect audio information; the audio playback device is used to play preset audio; the vehicle computer end is used to send the audio information to the test terminal.

[0067] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A vehicle-mounted acoustic tuning test system, characterized in that: The system includes: a test terminal, a real vehicle platform and a simulation sound system, wherein: The test terminal is connected to the real vehicle platform and the simulation sound system respectively, and is used to send the first preset audio to the simulation sound system according to the project test requirements; A simulated audio system, used for playing a first preset audio; A real vehicle platform, comprising a vehicle terminal and a recording device connected to the vehicle terminal, wherein the recording device is used to obtain first audio information corresponding to the first preset audio, and the vehicle terminal is used to send the first audio information to the test terminal; The test terminal is further used to test whether the first audio information meets the standard.

2. The system according to claim 1, characterized in that The test terminal is connected to the vehicle terminal by hardware via a universal serial bus.

3. The system according to claim 2, characterized in that The test terminal is deployed as an Android debugging environment, and a preset audio analysis software is installed in the Android debugging environment to analyze the received audio information; The vehicle terminal is deployed as an Android system, and a preset recording software is installed in the Android system for storing the received audio information.

4. The system according to claim 3, characterized in that The vehicle terminal obtains the first preset audio of the recording device through a preset interface of the Android system, and prohibits other recording devices from calling the preset interface through a preset Android debugging command.

5. The system according to claim 3, characterized in that The real vehicle platform also includes: an audio playback device connected to the vehicle terminal, the recording device and the audio playback device are deployed according to the real vehicle sound zone, and the audio playback device is used to play a second preset audio.

6. The system according to claim 5, characterized in that The test terminal is also used to generate an audio playback control instruction, and send the audio playback control instruction to the audio playback device through the vehicle terminal; After the audio player plays the second preset audio, the recording device is further used to obtain second audio information corresponding to the second preset audio, and the vehicle terminal sends the second audio information to the test terminal; The test terminal is also used to test whether the second audio information meets the standard.

7. The system according to claim 6, characterized in that The test terminal is further used to adjust the volume of the first preset audio according to project test requirements, or generate a volume control instruction corresponding to the second preset audio.

8. The system according to claim 6, characterized in that The test terminal is further used to test whether the first audio information meets the standard, or the test terminal is further used to test whether the second audio information meets the standard, including: By using the preset audio analysis software, the first audio information or the second audio information is compared and analyzed with the corresponding reference audio information to obtain an audio quality index; Whether the audio quality indicator meets the standard is determined according to preset technical indicators; the audio quality indicator includes at least one of the following: audio amplitude, distortion, delay, frame loss and jitter.

9. The system according to claim 5, characterized in that The vehicle terminal stores the first audio information, the second preset audio, and the reference audio information corresponding to the first audio information or the second preset audio in a preset directory through the preset recording software.

10. The system according to claim 1, characterized in that The real vehicle platform also includes: a decibel detector, deployed near the recording device, connected to the test terminal, and used to detect the decibel value of the first audio information. The test terminal controls the decibel value of the first preset audio to be lower than a preset decibel threshold according to the decibel value.

11. A car, characterized in that: include: A vehicle terminal, and a recording device and an audio playback device connected to the vehicle terminal; The recording device is used to collect audio information; The audio playback device is used to play preset audio; The vehicle terminal is used to send the audio information to the test terminal.

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