CN117591063A

CN117591063A - Audio simulation method, device, system, electronic equipment and storage medium

Info

Publication number: CN117591063A
Application number: CN202410073392.8A
Authority: CN
Inventors: 王培清; 耿向伟; 王巍; 申慧青; 聂震; 霍正笑
Original assignee: Beijing Bluesky Aviation Technology Co Ltd
Current assignee: Beijing Bluesky Aviation Technology Co Ltd
Priority date: 2024-01-18
Filing date: 2024-01-18
Publication date: 2024-02-23

Abstract

The invention provides an audio simulation method, an audio simulation device, an audio simulation system, electronic equipment and a storage medium, and relates to the technical field of simulation, wherein the method comprises the following steps: acquiring a target audio signal and first target control information, and generating a digital audio signal corresponding to a target audio output end based on the target audio signal and the first target control information; and under the condition that the interface of the target audio output end is an analog audio interface, digital-to-analog conversion is carried out on the digital audio signal corresponding to the target audio output end, so as to obtain an analog audio signal corresponding to the target audio output end, and the analog audio signal or the digital audio signal corresponding to the target audio output end is sent to the target audio output end. The audio simulation method, the device, the system, the electronic equipment and the storage medium provided by the invention can reduce the cost investment of the audio simulation in the flight simulator, can improve the reusability of the audio simulation in the flight simulator, and can provide more real flight experience for flight drivers in the flight simulation.

Description

Audio simulation method, device, system, electronic equipment and storage medium

Technical Field

The present invention relates to the field of simulation technologies, and in particular, to an audio simulation method, apparatus, system, electronic device, and storage medium.

Background

The flight simulator is widely applied to the fields of pilot training, flight skill testing, aviation research and the like. The flight simulator not only can provide the economy and safety of actual combat training, but also can help pilots to become familiar with various operating procedures, cope with emergency situations, and improve their flight skills and reaction capacity.

The audio in the flight simulator directly affects the pilot's experience and realism of the flight experience. Typically, the audio in the flight simulator may include call audio, navigation audio, alert audio, and the like. In performing flight simulator audio simulation, it is desirable to simulate conversations between different crewmembers and output corresponding audio on different audio output devices (e.g., headphones and speakers).

However, the conventional audio simulation method in the related art has the defects of higher cost investment, lower reusability and the like, and is difficult to meet the actual requirements of audio simulation in the flight simulator. Therefore, how to reduce the cost investment of the audio simulation in the flight simulator and improve the reusability of the audio simulation in the flight simulator is a technical problem to be solved in the field.

Disclosure of Invention

The invention provides an audio simulation method, an audio simulation device, an audio simulation system, electronic equipment and a storage medium, which are used for solving the defects of higher cost investment and lower reusability of the traditional audio simulation method in the prior art, and realizing the purposes of reducing the cost investment of audio simulation and improving the reusability of the audio simulation.

The invention provides an audio simulation method, which comprises the following steps:

acquiring a target audio signal and first target control information, wherein the target audio signal comprises a target analog audio signal and a first target digital audio signal, the target analog audio signal comprises an analog audio signal which is received by a target audio input end in a current simulation period, the first target digital audio signal comprises a digital audio signal which is output by a target public channel in the current simulation period, the target audio input end comprises an audio input end which is received by the analog audio signal in the current simulation period, the target public channel comprises a public channel which is used for outputting the digital audio signal in the current simulation period, the first target control information comprises identification information of the target audio output end and first corresponding relation information, the target audio output end is an audio output end which is required to output the audio signal in the current simulation period, and the first corresponding relation information is used for describing the corresponding relation between the target audio output end and the target audio input end and/or the target public channel in the current simulation period;

Generating a digital audio signal corresponding to the target audio output end based on the target audio signal and the first target control information;

under the condition that the interface of the target audio output end is an analog audio interface, digital-to-analog conversion is carried out on the digital audio signal corresponding to the target audio output end to obtain an analog audio signal corresponding to the target audio output end, and then the analog audio signal corresponding to the target audio output end is sent to the target audio output end based on the identification information of the target audio output end so that the target audio output end can output the analog audio signal corresponding to the target audio output end,

and under the condition that the interface of the target audio output end is a digital audio interface, based on the identification information of the target audio output end, transmitting the digital audio signal corresponding to the target audio output end so that the target audio output end can output the digital audio signal corresponding to the target audio output end.

According to the audio simulation method provided by the invention, the generating the digital audio signal corresponding to the target audio output end based on the target audio signal and the first target control information includes:

Performing analog-to-digital conversion on the target analog audio signal in the target audio signal to obtain a second target digital audio signal, wherein the second target digital audio signal corresponds to the target audio input end one by one;

and mixing the second target digital audio signal and the first target digital audio signal based on the first corresponding relation information to obtain a digital audio signal corresponding to the target audio output end.

According to the audio simulation method provided by the invention, the first target control information further comprises: volume control information and/or on-off control information; the volume control information comprises output volume of a target audio input end corresponding to the target audio output end and/or output volume information of a target public channel corresponding to the target audio output end; the on-off control information comprises an on-off identification of a target audio input end corresponding to the target audio output end and on-off identification information of a target public channel corresponding to the target audio output end;

after the obtaining the analog audio signal corresponding to the target audio output end, before the sending the analog audio signal corresponding to the target audio output end based on the identification information of the target audio output end, the method further includes:

Updating an analog audio signal corresponding to the target audio output end based on the first target control information;

before the digital audio signal corresponding to the target audio output end is sent to the target audio output end, the method further comprises:

and updating the digital audio signal corresponding to the target audio output end based on the first target control information.

According to the audio simulation method provided by the invention, the audio input end, the audio output end and the public channel are determined based on simulation requirements; the common channels include at least one of a navigation channel, an alert channel, and an ambient audio channel.

The invention also provides an audio simulation method, which comprises the following steps:

obtaining a target audio signal and second target control information, wherein the target audio signal comprises a target analog audio signal and a first target digital audio signal, the target analog audio signal comprises an analog audio signal received by a target audio input end in a current simulation period, the first target digital audio signal comprises a digital audio signal output by a target public channel in the current simulation period, the target audio input end comprises an audio input end for receiving the input of the analog audio signal in the current simulation period, the target public channel comprises a public channel for outputting the digital audio signal in the current simulation period, and the second target control information comprises output volume information and/or on-off identification information of each target audio input end in each audio output end in the current simulation period, and output volume information and/or on-off identification information of each target public channel in each audio output end;

Generating a digital audio signal corresponding to each audio output end based on the target audio signal;

under the condition that the interface of any audio output end is an analog audio interface, digital-to-analog conversion is carried out on the digital audio signal corresponding to any audio output end to obtain an analog audio signal corresponding to any audio output end, the analog audio signal corresponding to any audio output end is updated based on the second target control information, the updated analog audio signal corresponding to any audio output end is further sent to any audio output end for the any audio output end to output the updated analog audio signal corresponding to any audio output end,

and under the condition that the interface of any audio output end is a digital audio interface, updating the digital audio signal corresponding to any audio output end based on the second target control information, and further sending the updated digital audio signal corresponding to any audio output end so that the any audio output end can output the updated digital audio signal corresponding to any audio output end.

According to the audio simulation method provided by the invention, the generating of the digital audio signal corresponding to each audio output end based on the target audio signal comprises the following steps:

and mixing the second target digital audio signal and the first target digital audio signal, and determining the obtained mixed signal as the digital audio signal corresponding to each audio output end.

The invention also provides an audio simulation device, which comprises:

the first acquisition module is used for acquiring a target audio signal and first target control information, wherein the target audio signal comprises a target analog audio signal and a first target digital audio signal, the target analog audio signal comprises an analog audio signal which is received by a target audio input end in a current simulation period, the first target digital audio signal comprises a digital audio signal which is output by a target public channel in the current simulation period, the target audio input end comprises an audio input end which is received by the analog audio signal and is input by the analog audio signal in the current simulation period, the target public channel comprises a public channel which is used for outputting the digital audio signal in the current simulation period, the first target control information comprises identification information of the target audio output end and first corresponding relation information, the target audio output end is an audio output end which is required to output the audio signal in the current simulation period, and the first corresponding relation information is used for describing the corresponding relation between the target audio output end and the target audio input end and/or the target public channel in the current simulation period;

The first conversion module is used for generating a digital audio signal corresponding to the target audio output end based on the target audio signal and the first target control information;

the first output module is configured to perform digital-to-analog conversion on a digital audio signal corresponding to the target audio output end when the interface of the target audio output end is an analog audio interface, obtain an analog audio signal corresponding to the target audio output end, further send the analog audio signal corresponding to the target audio output end based on identification information of the target audio output end, so that the target audio output end outputs the analog audio signal corresponding to the target audio output end, and send the digital audio signal corresponding to the target audio output end based on the identification information of the target audio output end when the interface of the target audio output end is a digital audio interface, so that the target audio output end outputs the digital audio signal corresponding to the target audio output end.

The invention also provides an audio simulation device, which comprises:

the second acquisition module is used for acquiring target audio signals and second target control information, the target audio signals comprise target analog audio signals and first target digital audio signals, the target analog audio signals comprise analog audio signals received by a target audio input end in a current simulation period, the first target digital audio signals comprise digital audio signals output by a target public channel in the current simulation period, the target audio input end comprises an audio input end for receiving analog audio signal input in the current simulation period, the target public channel comprises a public channel for outputting digital audio signals in the current simulation period, and the second target control information comprises output volume information and/or on-off identification information of each target audio input end in each audio output end in the current simulation period, and output volume information and/or on-off identification information of each target public channel in each audio output end;

The second conversion module is used for generating a digital audio signal corresponding to each audio output end based on the target audio signal;

the second output module is configured to perform digital-to-analog conversion on the digital audio signal corresponding to any audio output end when the interface of any audio output end is an analog audio interface, obtain an analog audio signal corresponding to any audio output end, update the analog audio signal corresponding to any audio output end based on the second target control information, and further send the updated analog audio signal corresponding to any audio output end, so that the any audio output end outputs the updated analog audio signal corresponding to any audio output end, and update the digital audio signal corresponding to any audio output end based on the second target control information when the interface of any audio output end is a digital audio interface, and further send the updated digital audio signal corresponding to any audio output end, so that the any audio output end outputs the updated digital audio signal corresponding to any audio output end.

The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the above-described audio simulation methods when executing the program.

The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements an audio simulation method as described in any of the above.

The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements an audio simulation method as described in any of the above.

According to the audio simulation method, the device, the system, the electronic equipment and the storage medium, after the target audio signal comprising the analog audio signal received by the target audio input end in the current simulation period and the digital audio signal output by the target public channel in the current simulation period are obtained, and the first target control information comprising the identification information of the target audio output end and the first corresponding relation information is obtained, the digital audio signal corresponding to the target audio output end is generated based on the target audio signal and the first target control information, and further based on the interface type and the identification information of the target audio output end, the digital audio signal corresponding to the target audio output end is converted into the analog audio signal and then is sent to the target audio output end, or the digital audio signal corresponding to the target audio output end is directly sent to the target audio output end for output by the target audio output end, so that the cost investment of audio simulation in the flight simulator can be reduced, the reusability of the audio simulation in the flight simulator can be improved, more real flight experience can be provided for a flight pilot in the flight simulator, and the flight training effect can be improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of an audio simulation method according to the present invention;

FIG. 2 is a schematic diagram illustrating connection between an audio input terminal and an audio output terminal and an audio simulation device in the audio simulation method provided by the invention;

FIG. 3 is a schematic diagram of a virtual audio matrix formed by an audio input end, an audio output end and a common channel in the audio simulation method provided by the invention;

FIG. 4 is a signal interaction diagram of an audio input end and an audio output end in the audio simulation method provided by the invention;

FIG. 5 is a second flow chart of the audio simulation method according to the present invention;

FIG. 6 is a schematic diagram of an audio simulation device according to the present invention;

FIG. 7 is a second schematic diagram of an audio simulation device according to the present invention;

Fig. 8 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present application, the terms "first," "second," and the like are used for distinguishing between similar objects and not for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. In addition, in the description of the present application, "and/or" means at least one of the connected objects, and the character "/", generally means a relationship in which the front and rear associated objects are one kind of "or".

It should be noted that a flight simulator is a device that simulates a flight process by computer software and hardware. Flight simulators can simulate various different types of aircraft, including airplanes, helicopters, unmanned planes, etc., as well as different flight environments, such as sunny days, rainy days, storm snow, etc. The flight simulator is widely applied to the fields of pilot training, flight skill testing, aviation research and the like. The flight simulator not only can provide the economy and safety of actual combat training, but also can help pilots to become familiar with various operating procedures, cope with emergency situations, and improve their flight skills and reaction capacity.

In general, when the flight simulator simulates flight, the audio in the real flight scene is also simulated. When the pilot utilizes the flight simulator to simulate flight, each pilot has an independent machine through control box, and each path of audio is completely independent and controllable. The logic control of the audio in the flight simulator can comprise two parts, namely hardware and software, wherein the hardware mainly comprises multi-stage control, on-off control and the like of the output volume of the machine communication control box, and the software mainly comprises whether the frequency of the simulated call is matched, whether an interference source exists in the simulated call and the like.

When the flight simulator simulates the audio in the real flight scene based on the traditional audio simulation method, the audio (including in-earphone conversation, in-earphone navigation audio, alarm audio and the like) in the flight simulator can be directly generated by the in-aircraft equipment. The built-in equipment can comprise real equipment or simulation equipment.

The real plant may communicate with the flight simulator using an aircraft bus and standard ARINC429 digital audio protocol. Specifically, the real machine equipment can realize communication with the flight simulator through the excitation of the ARINC429 bus simulation board card, and the on-off and the volume of a communication link are adjusted by controlling the on-off and the impedance of hardware equipment in the flight simulator through signals.

The simulation device generally adopts network signals to control an analog signal matrix formed by multiple input and output signals, and adjusts the on-off and volume of the audio signals by controlling the switch and the impedance of an audio controller or an audio processor.

However, the traditional audio simulation method is only used for transplanting the same-environment audio functions of the aircraft with specific models, and can not strip the whole environment audio into an abstract model, so that the constraint of practical application scenes is large.

Moreover, the above-mentioned conventional audio simulation method has the following defects: first, the cost investment is high. In order to ensure the stability of communication, an aircraft generally adopts a bus design thought, and maintains a redundant design, while the reliability of the audio simulation of the flight simulator is ensured by generating the audio in the flight simulator by real aircraft equipment, higher equipment cost investment and maintenance cost investment are brought, and for virtual objects such as ground platforms and the like, development cost is also brought for matching the data transmission mode between the real aircraft equipment and the aircraft simulator;

second, the reusability is low. When the real machine equipment or the simulation equipment generates the audio in the flight simulator, if the communication protocol between the real machine equipment or the simulation equipment and the flight simulator is changed, a simulation scheme needs to be redesigned; if new hardware equipment is added in the flight simulator, a matched communication link is required to be correspondingly developed, so that the simulation efficiency and the reusability of the traditional audio simulation method are low.

Thirdly, the coupling is strong. The traditional audio simulation method binds an audio system of the flight simulator with an airborne system, an avionic system and an electrical system, and under the condition that other functions of a machine through control box in the flight simulator are maintained or interface acquisition equipment is abnormal (usually bus signals or IO signals), the sound system is forced to stop running, so that the audio simulation of the flight simulator is interrupted.

Fourth, the standardization is low. When the simulation equipment generates the audio in the flight simulator, different audio output equipment can have differences in volume and definition of the audio under the same scene due to the differences of the sensitivity of different equipment and possible signal fluctuation or interference, and calibration is needed at any time.

Fig. 1 is a schematic flow chart of an audio simulation method provided by the invention. The audio simulation method of the present invention is described below with reference to fig. 1. As shown in fig. 1, the method includes: step 101, acquiring a target audio signal and first target control information, wherein the target audio signal comprises a target analog audio signal and a first target digital audio signal, the target analog audio signal comprises an analog audio signal received by a target audio input end in a current simulation period, the first target digital audio signal comprises a digital audio signal output by a target public channel in the current simulation period, the target audio input end comprises an audio input end for receiving the input of the analog audio signal in the current simulation period, the target public channel comprises a public channel for outputting the digital audio signal in the current simulation period, the first target control information comprises identification information of the target audio output end and first correspondence information, the target audio output end is an audio output end needing to output the audio signal in the current simulation period, and the first correspondence information is used for describing correspondence between the target audio output end and the target audio input end and/or the target public channel in the current simulation period.

Specifically, the execution body in the embodiment of the invention is an audio simulation device.

It should be noted that the audio simulation method provided by the invention can be used for simulating the audio in the flight simulator. When the audio simulation method provided by the invention is used for simulating the audio in the flight simulator, the audio in the flight simulator can be simulated according to the simulation period.

It should be noted that, the audio input end in the embodiment of the present invention may include a microphone worn by the pilot and the crew member when the flight simulator is utilized to simulate the flight;

the public channel in the embodiment of the invention can comprise at least one of a navigation channel for outputting navigation audio, alarm audio for outputting alarm information and an environmental sound channel for outputting environmental sound in a real flight scene when the flight simulator is utilized to simulate flight;

the audio output end in the embodiment of the invention can comprise a headset worn by a pilot and a crew member and/or a loudspeaker in the flight simulator when the pilot utilizes the flight simulator to simulate flight.

It is understood that in the embodiment of the present invention, the number of audio input terminals, the number of audio output terminals, and the number of common channels may be one or more.

As an alternative embodiment, the audio input, the audio output and the common channel are determined based on the simulation requirements; the common channels include at least one of a navigation channel, an alert channel, and an ambient audio channel.

It should be noted that, in the embodiment of the present invention, the audio signal received by the audio input terminal is an analog audio signal; and the audio signal output by the common channel is a digital audio signal; under the condition that the audio output end is an earphone and/or a loudspeaker worn by a pilot when the pilot utilizes the flight simulator to simulate flight, the audio signal output by the audio output end is an analog audio signal; in the case that the audio output terminal is a digital port, the audio signal output by the audio output terminal is a digital audio signal.

In order to facilitate understanding of the audio simulation method provided by the present invention, the audio input end includes a left driving microphone, a right driving microphone, a mechanic microphone and an instructor microphone, the common channel includes a navigation channel and an alarm channel, and the audio output end includes a left driving earphone, a right driving earphone, a mechanic earphone, an instructor earphone and a speaker.

The left driving microphone and the left driving earphone are worn by a left driver when the flight simulator is utilized to simulate flight; the right driving microphone and the right driving earphone are the microphones and the earphone worn by the right driver when the flight simulator is utilized to simulate flight; a mechanic microphone and a mechanic earphone, which are microphones and earphone worn by the mechanic when the flight simulator is utilized to simulate the flight; the speaker microphone and the speaker earphone are worn by the instructor when the flight simulator is utilized to simulate the flight; the first speaker is a speaker in a flight simulator.

It will be appreciated that the microphones and headphones worn by pilots and crewmembers in embodiments of the present invention may be headsets.

Alternatively, the above-described audio simulation apparatus may include an audio control box and a sound computer.

Fig. 2 is a schematic diagram of connection between an audio input end and an audio output end and an audio simulation device in the audio simulation method provided by the invention. As shown in fig. 2, when the flight simulator is used to simulate the flight, the headset worn by the left driver, the headset worn by the right driver, the headset worn by the mechanic, the headset worn by the instructor, and the speaker are electrically connected to the audio control box.

As shown in fig. 2, the audio control box may be electrically connected to a communication assembly, which may be electrically connected to a sound computer, which may be electrically connected to a main simulation machine in the flight simulator. Wherein, the communication component may be a network switch.

The audio control box may connect the headset with the speaker via an audio cable, typically wired in separate inputs and outputs, so 1 pair of headsets typically includes two cables, an input and an output. The headset can be directly connected into the audio control box through the cable without passing through airborne equipment;

the audio control box is connected with the sound computer through a network cable, and is used for inputting a second target digital audio signal and/or a first target digital audio signal into the sound computer after carrying out analog-to-digital conversion on a target analog audio signal in the target audio signals, and the sound computer mixes the second target digital audio signal and/or the first target digital audio signal based on the first corresponding relation information to obtain a digital audio signal corresponding to a target audio output end;

the sound computer can input the digital audio signal corresponding to the target audio output end into the audio control box, and the audio controller performs digital-to-analog conversion on the digital audio signal corresponding to the target audio output end under the condition that the interface of the target audio output end is an analog audio interface, so as to obtain the analog audio signal corresponding to the target audio output end.

The audio control box can also send the analog audio signal corresponding to the target audio output end and/or the digital audio information corresponding to the target audio output end for output by the target audio output end.

Therefore, there is a mapping of analog audio signals to digital audio signals and a mapping of digital audio signals to analog audio signals inside the audio control box, and the audio signals sent by the audio control box to the target audio output end are completely determined by the sound computer without controlling the internal circuits of the audio control box.

It should be noted that, in the embodiment of the present invention, the source of the first target control information, that is, the source of the on-off and volume control information, is emphasized, the machine-through control box does not belong to a part of the sound system, the signal of the machine-through control box is obtained by the main simulation computer, and is sent to the sound computer to be used as the control information after being processed, and the machine-through control box sends the signal to the main simulation computer through network data transmission.

The audio simulation device in the embodiment of the invention comprises a commercially available or self-developed audio control box, the target analog audio signal can be converted into a digital audio signal in the audio simulation device, and the first target digital audio signal can also be converted into an analog audio signal in the audio simulation device, so that the expansion of more devices is supported and the cost is reduced.

Specifically, in the embodiment of the invention, the audio input end which receives the analog audio signal input in the current simulation period can be determined as the target audio input end, and the analog audio signal which is received by the target audio input end in the current simulation period can be determined as the target analog audio signal. For example, if the left-hand microphone and the mechanic microphone receive analog audio signal inputs during the current simulation period, the left-hand microphone and the mechanic microphone may both be determined to be target audio inputs, and the analog audio signals received by the left-hand microphone during the current simulation period and the analog audio signals received by the mechanic microphone during the current simulation period may both be determined to be target analog audio signals.

It will be appreciated that the target analog audio signal corresponds one-to-one to the target audio input.

In the embodiment of the invention, the public channel outputting the digital audio signal in the current simulation period can be determined as the target public channel, and the digital audio signal outputted by the target public channel in the current simulation period can be determined as the first target digital audio signal. For example, if the navigation channel and the environmental sound channel output digital audio signals in the current simulation period, the navigation channel and the environmental sound channel may be determined as target common channels, and the digital audio signals output by the navigation channel in the current simulation period and the digital audio signals output by the environmental sound channel in the current simulation period may be determined as first target digital signals.

It will be appreciated that the first target digital signal corresponds one-to-one to the target common channel.

It can be appreciated that if no audio input receives an analog audio signal within the current simulation period, determining that no target audio input exists; if no digital audio signal is output from the public channel in the current simulation period, determining that no target public channel exists.

Accordingly, in the case where it is determined that only the target audio input is present, the target analog audio signal may be determined as the target audio signal; in the case where it is determined that only the target common channel exists, the first target digital audio signal may be determined as the target audio signal; in case the target audio input and the target common channel are determined, the target analog audio signal and the first target digital audio signal may be determined as target audio signals.

It is understood that in the embodiment of the present invention, the number of target audio input terminals, the number of target audio output terminals, and the number of target common channels may be one or more.

In the embodiment of the invention, the target audio signal can be acquired in a communication mode.

According to the embodiment of the invention, the audio output end which is required to output the audio signal in the current simulation period can be determined according to the audio simulation requirement, and then the audio output end which is required to output the audio signal in the current simulation period can be determined as the target audio output end. For example, in the case where it is determined that the audio output terminal required to output the audio signal in the current simulation period includes a right-hand earphone and a speaker according to the audio simulation demand, the right-hand earphone and the speaker may be determined as target audio output terminals.

In the embodiment of the invention, the corresponding relation between the target audio input end and/or the target public channel and the target audio output end in the current simulation period can be determined according to the audio simulation requirement, and further the information for describing the corresponding relation between the target audio input end and/or the target public channel and the target audio output end in the current simulation period can be determined as the first corresponding relation information. For example, in the case where it is determined that the correspondence between the right-driving earphone and the left-driving microphone and the navigation channel exists in the current simulation period according to the audio simulation demand, information for describing the correspondence between the right-driving earphone and the left-driving microphone and the navigation channel in the current simulation period may be determined as the first correspondence information.

It should be noted that, a corresponding relationship exists between a certain target audio input end and a certain target audio output end in the current simulation period, which means that the target audio output end needs to output an analog audio signal received by the target audio input end in the current simulation period or a digital audio signal corresponding to the analog audio signal received by the target audio input end in the current simulation period; for example, the corresponding relationship between the right-driving earphone and the left-driving microphone in the current simulation period indicates that the right-driving earphone needs to output the analog audio signal received by the left-driving microphone in the current simulation period.

Similarly, a corresponding relation exists between a certain target public channel and a certain target audio output end in the current simulation period, which indicates that the target audio output end in the current simulation period needs to output a digital audio signal output by the target public channel in the current simulation period or an analog audio signal corresponding to the digital audio signal output by the target public channel in the current simulation period; for example, the right-driving earphone in the current simulation period has a corresponding relation with the navigation channel, which indicates that the right-driving earphone in the current simulation period needs to output an analog audio signal corresponding to the digital audio signal output by the navigation channel in the current simulation period.

In the embodiment of the invention, the identification information and the first corresponding relation information of the target audio output end can be obtained in various modes and used as the first target control information; for example, the identification information and the first correspondence information of the target audio output end may be obtained as the first target control information based on the input of the user; or, the identification information and the first corresponding relation information of the target audio output end can be obtained in a data communication mode to serve as first target control information.

Step 102, based on the target audio signal and the first target control information, generating a digital audio signal corresponding to the target audio output end.

Specifically, after the target audio signal and the target control signal are acquired, a digital audio signal corresponding to the target audio output end can be generated through analog-to-digital conversion and signal mixing based on the target audio signal and the target control signal.

As an alternative embodiment, generating a digital audio signal corresponding to the target audio output terminal based on the target audio signal and the first target control information includes: and carrying out analog-to-digital conversion on target analog audio signals in the target audio signals to obtain second target digital audio signals, wherein the second target digital audio signals are in one-to-one correspondence with the target audio input ends.

It will be appreciated that in the event that it is determined that a target audio input is present, a target analog audio signal is included in the target audio signal.

Accordingly, in the case that the target analog audio signal is included in the target audio signal, the target analog audio signal may be subjected to analog-to-digital conversion, to obtain a digital audio signal corresponding to the target analog audio signal, as the second target digital audio signal.

It will be appreciated that there is a one-to-one correspondence between the second target digital audio signal and the target audio input.

Specifically, based on the first correspondence information, a target audio input end and/or a target common channel corresponding to the target audio output end in the current simulation period may be determined.

Under the condition that the target audio output end only corresponds to the target audio input end in the current simulation period based on the first corresponding relation information, the second target digital audio signals corresponding to all the target audio input ends can be mixed, and the obtained mixed signals are determined to be digital audio signals corresponding to the target audio output end;

for example, in the case that it is determined that the right-driving earphone corresponds to only the left-driving microphone and the instructor microphone in the current simulation period based on the first correspondence information, the second target digital audio signal corresponding to the left-driving microphone and the second target digital audio signal corresponding to the instructor microphone may be mixed, and the obtained mixed signal may be determined as the digital audio signal corresponding to the target audio output terminal.

Under the condition that the target audio output end only corresponds to the target public channel in the current simulation period based on the first corresponding relation information, the first target digital audio signals corresponding to all the target public channels can be mixed, and the obtained mixed signals are determined to be the digital audio signals corresponding to the target audio output end;

for example, in the case that it is determined that the right-hand earphone corresponds to only the navigation channel and the environmental sound channel in the current simulation period based on the first correspondence information, the first target digital audio signal corresponding to the navigation channel and the first target digital audio signal corresponding to the environmental sound channel may be mixed, and the obtained mixed signal may be determined as the digital audio signal corresponding to the target audio output terminal.

Under the condition that the target audio output end corresponding to the target audio input end and the target public channel in the current simulation period are determined based on the first corresponding relation information, second target digital audio signals corresponding to all the target audio input ends and first target digital audio signals corresponding to all the target public channels can be mixed, and the obtained mixed signals are determined to be digital audio signals corresponding to the target audio output ends;

For example, in the case that the left-driving microphone, the instructor microphone, the navigation channel, and the environmental sound channel corresponding to the right-driving earphone in the current simulation period are determined based on the first correspondence information, the second target digital audio signal corresponding to the left-driving microphone, the second target digital audio signal corresponding to the instructor microphone, the first target digital audio signal corresponding to the navigation channel, and the first target digital audio signal corresponding to the environmental sound channel may be mixed, and the obtained mixed signal may be determined as the digital audio signal corresponding to the target audio output terminal.

Fig. 3 is a schematic diagram of a virtual audio matrix formed by an audio input end, an audio output end and a common channel in the audio simulation method provided by the invention. As shown in fig. 3, in the embodiment of the present invention, a 5×6 (output×input) virtual audio matrix may be constructed based on the composition of the audio input terminal, the audio output terminal, and the common channel. Each node in the virtual audio matrix represents a track of a particular source and destination. Based on the first correspondence information, the line corresponding to the target audio output end in the virtual audio matrix can be mixed, a digital audio signal corresponding to the target audio output end can be obtained, and then an analog audio signal corresponding to the target audio output end can be obtained.

Based on the volume control information in the first target control information, the output volume of part or all of the analog audio signals corresponding to the target audio output end can be adjusted, and part or all of the analog audio signals corresponding to the target audio output end can be shielded based on the on-off control information in the target control signal.

Furthermore, the discontinuity and the circularity of the audio signal output by the target audio output end can be controlled based on the first target control information.

Step 103, performing digital-to-analog conversion on the digital audio signal corresponding to the target audio output end under the condition that the interface of the target audio output end is an analog audio interface, obtaining the analog audio signal corresponding to the target audio output end, further transmitting the analog audio signal corresponding to the target audio output end based on the identification information of the target audio output end, so that the target audio output end outputs the analog audio signal corresponding to the target audio output end, and transmitting the digital audio signal corresponding to the target audio output end based on the identification information of the target audio output end under the condition that the interface of the target audio output end is a digital audio interface, so that the target audio output end outputs the digital audio signal corresponding to the target audio output end.

Specifically, after the digital audio signal corresponding to the target audio output end is obtained, whether digital-to-analog conversion is required for the digital audio signal corresponding to the target audio output end can be determined according to the interface type of the target audio output end.

In the case that the interface of the target audio output end is an analog audio interface, digital-to-analog conversion can be performed on the digital audio signal corresponding to the target audio output end to obtain an analog audio signal corresponding to the target audio output end, and then the analog audio signal corresponding to the target audio output end can be sent to the target audio output end based on the identification information of the target audio output end. The target audio output end can output the analog audio signal corresponding to the target audio output end under the condition that the analog audio signal corresponding to the target audio output end is received.

It can be understood that the analog audio signal corresponding to the target audio output end includes an analog audio signal corresponding to the target audio output end and/or an analog audio signal corresponding to the target common channel corresponding to the target audio output end.

In the case that the interface of the target audio output end is a digital audio interface, the digital audio signal corresponding to the target audio output end can be directly sent to the target audio output end based on the identification information of the target audio output end. The target audio output end can output the digital audio signal corresponding to the target audio output end under the condition that the digital audio signal corresponding to the target audio output end is received.

Fig. 4 is a signal interaction diagram of an audio input end and an audio output end in the audio simulation method provided by the invention. The dashed lines in fig. 4 represent digital audio signals, and the solid lines represent analog audio signals. The signal interaction between the audio input and the audio output is shown in fig. 4.

As an alternative embodiment, the first target control information further includes: volume control information and/or on-off control information; the volume control information comprises output volume of a target audio input end corresponding to the target audio output end and/or output volume information of a target public channel corresponding to the target audio output end; the on-off control information comprises on-off identification of a target audio input end corresponding to the target audio output end and on-off identification information of a target public channel corresponding to the target audio output end;

after obtaining the analog audio signal corresponding to the target audio output end, based on the identification information of the target audio output end, before sending the analog audio signal corresponding to the target audio output end, the method further comprises: based on the first target control information, updating the analog audio signal corresponding to the target audio output end.

It should be noted that, in the embodiment of the present invention, the output volume information of the target audio input end corresponding to the target audio output end may be used to indicate the output volume of the analog audio signal corresponding to the target audio input end when the target audio output end outputs the analog audio signal corresponding to the target audio output end;

The output volume information of the target public channel corresponding to the target audio output end in the embodiment of the invention can be used for representing the output volume of the analog audio signal corresponding to the target public channel when the target audio output end outputs the analog audio signal corresponding to the target audio output end;

the on-off identification information of the target audio input end corresponding to the target audio output end in the embodiment of the invention can be used for indicating whether the analog audio signal corresponding to the target audio input end needs to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end; under the condition that the on-off identification of the target audio input end corresponding to the target audio output end is on, the method indicates that the analog audio signal corresponding to the target audio input end does not need to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end; under the condition that the on-off identification of the target audio input end corresponding to the target audio output end is 'off', the method indicates that the analog audio signal corresponding to the target audio input end needs to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end;

The on-off identification information of the target public channel corresponding to the target audio output end in the embodiment of the invention can be used for judging whether the analog audio signal corresponding to the target public channel needs to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end; under the condition that the on-off identification of the target public channel corresponding to the target audio output end is on, the method indicates that the analog audio signal corresponding to the target public channel is not required to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end; and under the condition that the on-off identification of the target audio input end corresponding to the target audio output end is 'off', the analog audio signal corresponding to the target public channel needs to be shielded when the target audio output end outputs the analog audio signal corresponding to the target audio output end.

Under the condition that the target audio output end only corresponds to the target audio input end in the current simulation period based on the first corresponding relation information, if the first target control information comprises the output volume of the target audio input end corresponding to the target audio output end, the output volume of the analog audio signal corresponding to the target audio input end in the analog audio signal corresponding to the target audio output end can be updated based on the output volume of the target audio input end corresponding to the target audio output end; if the first target control information includes the on-off identifier of the target audio input end corresponding to the target audio output end, and the on-off identifier is "off", the analog audio signal corresponding to the target audio input end in the analog audio signal corresponding to the target audio output end may be masked based on the on-off identifier of the target audio input end corresponding to the target audio output end.

For example, in the case that it is determined that the right-driving earphone corresponds to only the left-driving microphone and the instructor microphone in the current simulation period based on the first correspondence information, if the first target control information includes the output volume of the left-driving microphone corresponding to the right-driving earphone, the output volume of the analog audio signal corresponding to the left-driving microphone in the analog audio signal corresponding to the right-driving earphone may be updated based on the output volume of the left-driving microphone corresponding to the right-driving earphone; if the first target control information includes the on-off identifier of the instructor microphone corresponding to the right-driving earphone, and the on-off identifier is "off", the analog audio signal corresponding to the instructor microphone in the analog audio signal corresponding to the right-driving earphone can be shielded based on the on-off identifier of the instructor microphone corresponding to the right-driving earphone.

Under the condition that the target audio output end only corresponds to the target public channel in the current simulation period based on the first corresponding relation information, if the first target control information comprises the output volume of the target public channel corresponding to the target audio output end, the output volume of the analog audio signal corresponding to the target public channel in the analog audio signal corresponding to the target audio output end can be updated based on the output volume of the target public channel corresponding to the target audio output end; if the first target control information includes the on-off identifier of the target public channel corresponding to the target audio output end, and the on-off identifier is "off", the analog audio signal corresponding to the target public channel in the analog audio signal corresponding to the target audio output end can be shielded based on the on-off identifier of the target public channel corresponding to the target audio output end.

For example, under the condition that the right-hand earphone only corresponds to the navigation channel and the environmental sound channel in the current simulation period based on the first corresponding relation information, if the first target control information includes the output volume of the navigation channel corresponding to the right-hand earphone, the output volume of the analog audio signal corresponding to the navigation channel in the analog audio signal corresponding to the right-hand earphone can be updated based on the output volume of the navigation channel corresponding to the right-hand earphone; if the first target control information includes the on-off identifier of the environmental audio channel corresponding to the right-driving earphone, and the on-off identifier is "off", the analog audio signal corresponding to the environmental audio channel in the analog audio signal corresponding to the right-driving earphone can be shielded based on the on-off identifier of the environmental audio channel corresponding to the right-driving earphone.

Under the condition that the target audio output end corresponds to the target audio input end and the target public channel in the current simulation period is determined based on the first corresponding relation information, if the first target control information comprises the output volume of the target audio input end corresponding to the target audio output end, the output volume of the analog audio signal corresponding to the target audio input end in the analog audio signal corresponding to the target audio output end can be updated based on the output volume of the target audio input end corresponding to the target audio output end; if the first target control information includes an on-off identifier of a target audio input end corresponding to a target audio output end, and the on-off identifier is "off", the analog audio signal corresponding to the target audio input end in the analog audio signal corresponding to the target audio output end can be shielded based on the on-off identifier of the target audio input end corresponding to the target audio output end; if the first target control information includes the output volume of the target public channel corresponding to the target audio output end, the output volume of the analog audio signal corresponding to the target public channel in the analog audio signal corresponding to the target audio output end can be updated based on the output volume of the target public channel corresponding to the target audio output end; if the first target control information includes the on-off identifier of the target public channel corresponding to the target audio output end, and the on-off identifier is "off", the analog audio signal corresponding to the target public channel in the analog audio signal corresponding to the target audio output end can be shielded based on the on-off identifier of the target public channel corresponding to the target audio output end.

Before the digital audio signal corresponding to the target audio output end is sent to the target audio output end, the method further comprises: and updating the digital audio signal corresponding to the target audio output end based on the first target control information.

Similarly, under the condition that the target audio output end only corresponds to the target audio input end in the current simulation period based on the first corresponding relation information, if the first target control information includes output volume information of the target audio input end corresponding to the target audio output end, the output volume of the digital audio signal corresponding to the target audio input end in the digital audio signal corresponding to the target audio output end can be updated based on the output volume information of the target audio input end corresponding to the target audio output end; if the first target control information includes on-off identification information of a target audio input end corresponding to the target audio output end, and the on-off identification is "off", the digital audio signal corresponding to the target audio input end can be shielded based on the on-off identification information of the target audio input end corresponding to the target audio output end.

For example, in the case that it is determined that the speaker corresponds to only the left-hand microphone and the instructor microphone in the current simulation period based on the first correspondence information, if the first target control information includes output volume information of the left-hand microphone corresponding to the speaker, the output volume of the digital audio signal corresponding to the left-hand microphone in the analog audio signal corresponding to the speaker may be updated based on the output volume information of the left-hand microphone corresponding to the speaker; if the first target control information includes on-off identification information of the speaker-corresponding instructor microphone, and the on-off identification is "off", the analog audio signal corresponding to the instructor microphone in the analog audio signal corresponding to the speaker may be shielded based on the on-off identification information of the speaker-corresponding instructor microphone.

Under the condition that the target audio output end only corresponds to the target public channel in the current simulation period based on the first corresponding relation information, if the first target control information comprises output volume information of the target public channel corresponding to the target audio output end, the output volume of the digital audio signal corresponding to the target public channel in the digital audio signal corresponding to the target audio output end can be updated based on the output volume information of the target public channel corresponding to the target audio output end; if the first target control information includes on-off identification information of a target public channel corresponding to the target audio output end, and the on-off identification is "off", the digital audio signal corresponding to the target public channel in the digital audio signal corresponding to the target audio output end can be shielded based on the on-off identification information of the target public channel corresponding to the target audio output end.

For example, under the condition that the speaker only corresponds to the navigation channel and the environmental sound channel in the current simulation period based on the first correspondence information, if the first target control information includes output volume information of the navigation channel corresponding to the speaker, the output volume of the digital audio signal corresponding to the navigation channel in the digital audio signal corresponding to the speaker can be updated based on the output volume information of the navigation channel corresponding to the speaker; if the first target control information includes on-off identification information of an environmental audio channel corresponding to the speaker, and the on-off identification is "off", the digital audio signal corresponding to the environmental audio channel in the digital audio signal corresponding to the speaker may be shielded based on the on-off identification information of the environmental audio channel corresponding to the speaker.

Under the condition that the target audio output end corresponds to the target audio input end and the target public channel in the current simulation period is determined based on the first corresponding relation information, if the first target control information comprises output volume information of the target audio input end corresponding to the target audio output end, the output volume of the digital audio signal corresponding to the target audio input end in the digital audio signal corresponding to the target audio output end can be updated based on the output volume information of the target audio input end corresponding to the target audio output end; if the first target control information includes on-off identification information of a target audio input end corresponding to a target audio output end, and the on-off identification is "off", the digital audio signal corresponding to the target audio input end in the digital audio signal corresponding to the target audio output end can be shielded based on the on-off identification of the target audio input end corresponding to the target audio output end; if the first target control information includes output volume information of a target public channel corresponding to a target audio output end, the output volume of a digital audio signal corresponding to the target public channel in the digital audio signal corresponding to the target audio output end can be updated based on the output volume information of the target public channel corresponding to the target audio output end; if the first target control information includes on-off identification information of a target public channel corresponding to the target audio output end, and the on-off identification is "off", the digital audio signal corresponding to the target public channel in the digital audio signal corresponding to the target audio output end can be shielded based on the on-off identification information of the target public channel corresponding to the target audio output end.

In the embodiment of the invention, the audio input end and the public channel are respectively used as independent input ends (comprising a microphone, an alarm channel, a navigation channel and an environment sound channel), and the audio output end (an earphone and a loudspeaker) is used as independent output ends, so that an m multiplied by n order virtual audio matrix of the input end-the output end can be established. When the audio simulation is carried out in different flight simulators, the audio input end and/or the audio output end in the virtual audio matrix are added and deleted only by combining the components of the actual cockpit crewmember for carrying out the flight simulation, and the audio input end and/or the audio output end in the virtual audio matrix are added and deleted without involving the change of hardware equipment, so that the audio input end and/or the audio output end in the virtual audio matrix can be added and deleted in a software mode. Where m represents the number of audio inputs and common channels; n represents the number of audio outputs.

In the embodiment of the invention, multi-level control information, frequency control information, interference information, noise reduction control information and the like are all abstracted into first target control information, namely volume control information and on-off control information. As can be seen from the above virtual audio matrix, the volume control information and the on-off control information include 2×m×n control signals in total. The level signal of the hardware equipment is converted into a physical signal which is convenient to understand and has specific meaning, and the physical signal is combined with a digital audio signal obtained through analog-to-digital conversion, so that the level signal can be operated according to avionic logic and converted into the on-off and output volume of any node in the virtual audio matrix, the audio simulation in the flight simulator can be simplified into necessary audio input equipment, public channels and audio output equipment and the contents of two parts of first target control information, the decoupling of the audio simulation and the avionic system and the electrical appliance system can be realized, and even in the independent working state of the sound system, the audio simulation can be realized by providing a control signal.

By constructing the virtual audio matrix, the digital audio signals of different audio tracks can be mixed based on the virtual audio matrix, the output volume standards of the same audio signals (including analog audio signals and digital audio data) in different audio output ends can be ensured to be more uniform, the audio output end with an interface being an analog audio interface can also output analog audio signals, and hardware equipment only needs to pay attention to the whole output condition without considering single signals, so that the uniformity of audio simulation is ensured.

It should be noted that, the virtual audio matrix in the embodiment of the present invention is different from the audio matrix formed by the hardware device, where the audio matrix formed by the hardware device can only achieve mixing of audio signals by adjusting the way that the components are plugged into different interfaces, so that the audio matrix formed by the hardware device can only achieve characteristic adjustment of the whole input and output signals, and the fixed number of input signal channels can not split the signals at will, so that the independent control function cannot necessarily be solved, and the virtual audio matrix in the embodiment of the present invention does not have the following problems.

According to the embodiment of the invention, the target audio signal comprising the analog audio signal received by the target audio input end in the current simulation period and the digital audio signal output by the target public channel in the current simulation period is obtained, and after the first target control information comprising the identification information and the first corresponding relation information of the target audio output end is obtained, the digital audio signal corresponding to the target audio output end is generated based on the target audio signal and the first target control information, and further, the digital audio signal corresponding to the target audio output end is converted into the analog audio signal based on the interface type and the identification information of the target audio output end and then is transmitted to the target audio output end, or the digital audio signal corresponding to the target audio output end is directly transmitted to the target audio output end, so that the cost investment of audio simulation in the flight simulator can be reduced, the reusability of the audio simulation in the flight simulator can be improved, more real flight experience can be provided for a pilot in the flight simulation, and the flight training effect can be improved.

The embodiment of the invention adopts the simulation piece to replace a real machine part, adopts network signal transmission to replace analog signal bus data transmission, greatly reduces the system cost, is convenient for the expansion of a system, uniquely determines the wiring mode of hardware equipment by constructing m multiplied by n virtual audio matrixes of different input audio tracks and different output equipment, directly operates software, avoids the limitation of circuit control of the hardware equipment, realizes the complete independent control of different sound materials, realizes the separation of a conversation function and conversation logic, reduces the coupling and complexity of the system, avoids the forced stop of the sound system due to the fault of a certain link under a serial model, ensures the consistency of the output of sound signals by the logic control mode of the audio simulation, reduces the requirements on the hardware equipment and improves the working efficiency.

FIG. 5 is a second flow chart of the audio simulation method according to the present invention. The audio simulation method of the present invention is described below with reference to fig. 5. As shown in fig. 5, the method includes: step 501, obtaining a target audio signal and second target control information, where the target audio signal includes a target analog audio signal and a first target digital audio signal, the target analog audio signal includes an analog audio signal received by a target audio input end in a current simulation period, the first target digital audio signal includes a digital audio signal output by a target public channel in the current simulation period, the target audio input end includes an audio input end receiving an analog audio signal input in the current simulation period, the target public channel includes a public channel outputting the digital audio signal in the current simulation period, and the second target control information includes output volume information and/or on-off identification information of each target audio input end in the current simulation period at each audio output end, and output volume information and/or on-off identification information of each target public channel at each audio output end.

It should be noted that, specific components of the audio simulation device in the embodiment of the present invention may be refer to fig. 2 and contents of the foregoing embodiments, and details of the embodiment of the present invention are not repeated.

It should be noted that the audio simulation method provided by the invention can also be used for simulating the audio in the flight simulator. When the audio simulation method provided by the invention is used for simulating the audio in the flight simulator, the audio in the flight simulator can be simulated according to the simulation period.

It should be noted that, in the embodiments of the present invention, specific descriptions of the audio input end, the audio output end, the common channel, the target audio input end, and the target common channel may be referred to the content of each of the above embodiments, which is not repeated in the embodiments of the present invention.

It should be noted that, in the embodiment of the present invention, the output volume information of any target audio input end at any audio output end may be used to indicate the output volume of the analog audio signal or the digital audio signal corresponding to the target audio input end when the audio output end outputs the analog audio signal or the digital audio signal corresponding to the target audio output end;

The channel identification volume information of any target audio input end at any audio output end in the embodiment of the invention can be used for indicating whether the audio output end needs to shield the analog audio signal or the digital audio signal corresponding to the target audio input end when outputting the analog audio signal or the digital audio signal corresponding to the audio output end; under the condition that the on-off identification of the target audio input end corresponding to the audio output end is on, the method indicates that the audio output end does not need to shield the analog audio signal or the digital audio signal corresponding to the target audio input end when outputting the analog audio signal or the digital audio signal corresponding to the audio output end; under the condition that the on-off identification of the target audio input end corresponding to the audio output end is 'off', the method indicates that when the audio output end outputs the analog audio signal or the digital audio signal corresponding to the audio output end, the analog audio signal or the digital audio signal corresponding to the target audio input end needs to be shielded;

the output volume information of any target public channel at any audio output end in the embodiment of the present invention may be used to indicate the output volume of the analog audio signal or the digital audio signal corresponding to the target public channel when the audio output end outputs the analog audio signal or the digital audio signal corresponding to the target public channel;

The channel identification volume information of any target public channel at any audio output end in the embodiment of the present invention may be used to indicate whether the audio output end needs to mask the analog audio signal or the digital audio signal corresponding to the target public channel when outputting the analog audio signal or the digital audio signal corresponding to the audio output end; under the condition that the on-off identification of the target public channel corresponding to the audio output end is on, the fact that the audio output end outputs the analog audio signal or the digital audio signal corresponding to the audio output end is indicated, and the analog audio signal or the digital audio signal corresponding to the target public channel does not need to be shielded; and under the condition that the on-off identification of the target public channel corresponding to the audio output end is 'off', the fact that the audio output end outputs the analog audio signal or the digital audio signal corresponding to the audio output end is needed to shield the analog audio signal or the digital audio signal corresponding to the target public channel is indicated.

In the embodiment of the invention, the second target control information can be acquired in a plurality of modes; for example, the second target control information may be acquired based on the input of the user; or, the second target control information can also be obtained by means of data communication.

Step 502, based on the target audio signal, generating a digital audio signal corresponding to each audio output end.

Specifically, after the target audio signal and the target control signal are acquired, the digital audio signal corresponding to each audio output end can be generated through analog-to-digital conversion and signal mixing based on the target audio signal and the target control signal.

As an alternative embodiment, generating a digital audio signal corresponding to each audio output terminal based on the target audio signal includes: and carrying out analog-to-digital conversion on target analog audio signals in the target audio signals to obtain second target digital audio signals, wherein the second target digital audio signals are in one-to-one correspondence with the target audio input ends.

Specifically, after the second target digital audio signal is acquired, the first target digital audio signal and the second target digital audio signal may be mixed, and the obtained mixed signal may be determined as a digital audio signal corresponding to each audio output terminal.

In step 503, when the interface of any audio output end is an analog audio interface, digital audio signals corresponding to any audio output end are subjected to digital-to-analog conversion to obtain analog audio signals corresponding to any audio output end, based on the second target control information, the analog audio signals corresponding to any audio output end are updated, and then the updated analog audio signals corresponding to any audio output end are sent to any audio output end, so that any audio output end can output the updated analog audio signals corresponding to any audio output end, and when the interface of any audio output end is a digital audio interface, based on the second target control information, the digital audio signals corresponding to any audio output end are updated, and then the updated digital audio signals corresponding to any audio output end are sent to any audio output end, so that any audio output end can output the updated digital audio signals corresponding to any audio output end.

Specifically, for any audio output terminal, based on the interface type of the audio output terminal, it may be determined whether digital-to-analog conversion is required for the digital audio signal corresponding to the audio output terminal.

In the case that the interface of the audio output end is an analog audio interface, digital-to-analog conversion can be performed on the digital audio signal corresponding to the audio output end, so as to obtain an analog audio signal corresponding to the audio output end.

It can be understood that the analog audio signal corresponding to the audio output end includes an analog audio signal corresponding to each target audio output end and/or an analog audio signal corresponding to a target common channel corresponding to each target audio output end.

Based on the output volume information of each target audio input end at the audio output end in the current simulation period in the second target control information, the output volume of the analog audio signal corresponding to each target audio input end in the analog audio signal corresponding to the audio output end can be updated;

based on the on-off identification information of each target audio input end at the audio output end in the current simulation period in the second target control information, part or all of analog audio signals corresponding to the audio output ends can be shielded;

Based on the output volume information of each target public channel in the current simulation period in the second target control information at the audio output end, the output volume of the analog audio signal corresponding to each target public channel in the analog audio signal corresponding to the audio output end can be updated;

based on the on-off identification information of each target public channel in the current simulation period in the second target control information at the audio output end, part or all of the analog audio signals corresponding to the audio output end can be shielded.

According to the embodiment of the invention, after the target audio signals including the analog audio signals received by the target audio input end in the current simulation period and the digital audio signals output by the target public channel in the current simulation period are obtained, and the output volume information and/or the on-off identification information of each target audio input end in each audio output end in the current simulation period and the second target control information of the output volume information and/or the on-off identification information of each target public channel in each audio output end are obtained, the digital audio signals corresponding to the target audio output end are generated based on the target audio signals, further, the digital audio signals corresponding to the target audio output end are converted into the analog audio signals based on the interface type of the target audio output end and the second target control information, and then updated, or the digital audio signals corresponding to the target audio output end are directly updated, and the analog audio signals or the digital audio signals corresponding to the updated target audio output end are sent to the target audio output end, so that the cost investment of audio simulation in the flight simulator can be reduced, the multiplexing performance of the pilot in the audio simulation in the flight simulator can be improved, the flight experience can be improved, and the flight experience can be improved for a flight driver.

Fig. 6 is a schematic structural diagram of an audio simulation device provided by the present invention. The audio simulation device provided by the present invention will be described below with reference to fig. 6, and the audio simulation device described below and the audio simulation method provided by the present invention described above may be referred to correspondingly. As shown in fig. 6, the apparatus includes: a first acquisition module 601, a first conversion module 602, and a first output module 603.

The first obtaining module 601 is configured to obtain a target audio signal and first target control information, where the target audio signal includes a target analog audio signal and a first target digital audio signal, the target analog audio signal includes an analog audio signal received by a target audio input end in a current simulation period, the first target digital audio signal includes a digital audio signal output by a target common channel in the current simulation period, the target audio input end includes an audio input end that receives an input of the analog audio signal in the current simulation period, the target common channel includes a common channel that outputs the digital audio signal in the current simulation period, the first target control information includes identification information of the target audio output end and first correspondence information, the target audio output end is an audio output end that needs to output the audio signal in the current simulation period, and the first correspondence information is used for describing a correspondence between the target audio output end and the target audio input end and/or the target common channel in the current simulation period;

The first conversion module 602 is configured to generate a digital audio signal corresponding to the target audio output terminal based on the target audio signal and the first target control information;

the first output module 603 is configured to perform digital-to-analog conversion on a digital audio signal corresponding to the target audio output end when the interface of the target audio output end is an analog audio interface, obtain an analog audio signal corresponding to the target audio output end, and further send the analog audio signal corresponding to the target audio output end based on the identification information of the target audio output end, so that the target audio output end outputs the analog audio signal corresponding to the target audio output end, and send the digital audio signal corresponding to the target audio output end based on the identification information of the target audio output end when the interface of the target audio output end is a digital audio interface, so that the target audio output end outputs the digital audio signal corresponding to the target audio output end.

Specifically, the first acquisition module 601, the first conversion module 602, and the first output module 603 are electrically connected.

According to the audio simulation device, after the target audio signal comprising the analog audio signal received by the target audio input end in the current simulation period and the digital audio signal output by the target public channel in the current simulation period are obtained, and the first target control information comprising the identification information and the first corresponding relation information of the target audio output end is obtained, the digital audio signal corresponding to the target audio output end is generated based on the target audio signal and the first target control information, and further based on the interface type and the identification information of the target audio output end, the digital audio signal corresponding to the target audio output end is converted into the analog audio signal and then is sent to the target audio output end, or the digital audio signal corresponding to the target audio output end is directly sent to the target audio output end for being output by the target audio output end, so that the cost investment of audio simulation in the flight simulator can be reduced, the reusability of the audio simulation in the flight simulator can be improved, more real flight experience can be provided for a flight driver in the flight simulation, and the flight training effect of pilots can be improved.

FIG. 7 is a schematic diagram of a second embodiment of an audio simulation device according to the present invention. The audio simulation device provided by the present invention will be described below with reference to fig. 7, and the audio simulation device described below and the audio simulation method provided by the present invention described above may be referred to correspondingly. As shown in fig. 7, the apparatus includes: a second acquisition module 701, a second conversion module 702, and a second output module 703.

A second obtaining module 701, configured to obtain a target audio signal and second target control information, where the target audio signal includes a target analog audio signal and a first target digital audio signal, the target analog audio signal includes an analog audio signal received by a target audio input end in a current simulation period, the first target digital audio signal includes a digital audio signal output by a target common channel in the current simulation period, the target audio input end includes an audio input end that receives an input of the analog audio signal in the current simulation period, the target common channel includes a common channel that outputs the digital audio signal in the current simulation period, and the second target control information includes output volume information and/or on-off identification information of each target audio input end in each audio output end in the current simulation period, and output volume information and/or on-off identification information of each target common channel in each audio output end;

A second conversion module 702, configured to generate a digital audio signal corresponding to each audio output terminal based on the target audio signal;

the second output module 703 is configured to perform digital-to-analog conversion on the digital audio signal corresponding to any audio output end when the interface of any audio output end is an analog audio interface, obtain an analog audio signal corresponding to any audio output end, update the analog audio signal corresponding to any audio output end based on the second target control information, and then send the updated analog audio signal corresponding to any audio output end, so that any audio output end outputs the updated analog audio signal corresponding to any audio output end, and update the digital audio signal corresponding to any audio output end based on the second target control information when the interface of any audio output end is a digital audio interface, and then send the updated digital audio signal corresponding to any audio output end, so that any audio output end outputs the updated digital audio signal corresponding to any audio output end.

According to the audio simulation device, after the analog audio signals which are received by the target audio input end in the current simulation period and the target audio signals which are output by the target public channel in the current simulation period are obtained, the output volume information and/or the on-off identification information of each audio output end of each target audio input end in the current simulation period and the second target control information of the output volume information and/or the on-off identification information of each audio output end of each target public channel are obtained, the digital audio signals corresponding to the target audio output end are generated based on the target audio signals, further, the digital audio signals corresponding to the target audio output end are converted into the analog audio signals based on the interface type of the target audio output end and the second target control information and then are updated, or the digital audio signals corresponding to the target audio output end are directly updated, the updated analog audio signals or the digital audio signals corresponding to the target audio output end are sent to the target audio output end, so that the cost investment of audio simulation in the aircraft can be reduced, the audio simulation in the aircraft can be improved, the simulation effect of the aircraft can be provided for a pilot to the real aircraft, and the training effect can be improved.

Fig. 8 illustrates a physical structure diagram of an electronic device, as shown in fig. 8, which may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform the audio simulation method.

Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing the audio simulation method provided by the methods described above.

In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the audio simulation method provided by the above methods.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An audio simulation method, comprising:

2. The audio simulation method according to claim 1, wherein the generating the digital audio signal corresponding to the target audio output terminal based on the target audio signal and the first target control information includes:

3. The audio simulation method according to claim 2, wherein the first target control information further comprises: volume control information and/or on-off control information; the volume control information comprises output volume of a target audio input end corresponding to the target audio output end and/or output volume information of a target public channel corresponding to the target audio output end; the on-off control information comprises an on-off identification of a target audio input end corresponding to the target audio output end and on-off identification information of a target public channel corresponding to the target audio output end;

4. A method of audio simulation according to any of claims 1 to 3, wherein the audio input, the audio output and the common channel are determined based on simulation requirements; the common channels include at least one of a navigation channel, an alert channel, and an ambient audio channel.

5. An audio simulation method, comprising:

6. The audio simulation method according to claim 5, wherein the generating a digital audio signal corresponding to each of the audio output terminals based on the target audio signal includes:

7. An audio simulation apparatus, comprising:

8. An audio simulation apparatus, comprising:

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the audio simulation method of any of claims 1 to 6 when the program is executed by the processor.

10. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the audio simulation method according to any of claims 1 to 6.