A sound simulation method of flight simulator based on asio

Abstract

The invention provides an ASIO-based sound simulation method for a flight simulator, which belongs to the fields of flight simulation and computer simulation. Including: first, building a flight simulator sound simulation device and initializing the sound simulation software; then, the simulation device sends sound simulation data, and the sound simulation software updates the played sound source to the Playlist; the sound card traverses each sound source added to the playlist, and then buffers each sound source and superimposes each output channel for mixing. After mixing, the sound is limited and sent to the sound card for playback. The present invention only uses a professional ASIO sound card and adopts Dante technology for audio transmission, which is mainly used for flight simulators, and has the advantages of simple structure, low use and maintenance costs, high reliability, good real-time performance, high sound quality and good three-dimensional effect. Etc.

Description

technical field [0001] The invention belongs to the field of flight simulation and computer simulation, and relates to an ASIO-based sound simulation method for a flight simulator. Background technique [0002] A flight simulator is a device that restores the real environment of the aircraft cockpit as much as possible for training or research and analysis purposes. As an important system in the flight simulator, the sound simulation system provides a lot of warning information for the driver, and is also an important part of the immersive experience. [0003] At present, most domestic flight simulator sound systems use DirectSound technology. Although it can achieve up to 7.1-channel stereo sound, it actually only has a 2-dimensional plane effect, which is not well supported in the vertical direction. On the other hand, due to the WDM driver framework, DirectSound technology generally has a delay of up to several hundred ms, which will become more and more unacceptable wit...

AI Technical Summary

Problems solved by technology

[0003] At present, the sound system of domestic flight simulators mostly uses DirectSound technology. Although it can achieve up to 7.1-channel stereo sound effects, it actually only has the effect of realizing 2-dimensional plane effects, and does not have good support in the vertical direction.

On the other hand, due to the WDM driver framework, the DirectSound technology generally has a delay of up to several hundred ms. This problem will become more and more unacceptable as the real-time requirements of the simulation increase.

[0004] In terms of audio transmission, the direct transmission of analog signals will inevitably reduce the transmission distance and reduce the transmission quality, which is not applicable when high quality and long-distance transmission are required

Moreover, professional simulation training equipment needs to use VoIP technology for audio signal transmission, but due to cost and complexity reasons, it is less popular in China

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