An embedded multi-channel audio management system and management method
A multi-channel audio and management system technology, which is applied in the field of vehicle embedded audio management system and management, can solve problems such as changes in audio output strategies, and achieve the effects of reducing complexity, improving robustness and efficiency, and facilitating adjustments
Active Publication Date: 2020-11-10
扬州航盛科技有限公司
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[0004] The purpose of the present invention is to provide an embedded multi-channel audio management system and management method, which solves the problem that the audio output strategy often changes in modern multi-audio input embedded products, so that the modification of the audio output strategy does not need to recompile the software , making up for the shortcomings of the existing embedded multi-channel audio management system that is not flexible enough, and improving the customizability of the system
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[0028] The present invention will be further described below in conjunction with specific embodiments.
[0029] figure 1 The operation process of the whole system is described. The whole system is mainly divided into three modules, which are signal validity judgment module, audio strategy decision module, and audio data output control module. For example: Suppose there is a system with two channels of music and car intercom, and the audio policy is configured such that the car intercom can preempt music, and vice versa. When there is noise data on the vehicle-mounted intercom channel, the signal validity module judges it as an invalid sound source. At this time, the user plays music. Since the vehicle-mounted intercom is an invalid sound source and does not participate in decision-making, the system outputs the music played by the user. When voice data is input on the vehicle-mounted intercom channel, it becomes an effective sound source. At this time, the audio policy decisi...
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The invention discloses an embedded multichannel audio management method in the field of vehicle-mounted systems. Firstly, a time domain audio signal is converted into a frequency domain audio signal,then the validity of the audio is detected, and the invalid sound source is filtered; and secondly, when a multichannel source signal is input, the system can compare the input state with a predetermined strategy to determine to output which channels of sound sources and the output sequence. The multichannel audio output strategy is customized, the problem that the audio output strategy in the embedded products of modern multichannel audio input often changes, so that the audio output strategy is modified without re-compiling the software, the defect that the existing embedded multichannel audio management system is not flexible enough is compensated, the customizability of the system is improved, and the embedded multichannel audio management method can be applied to vehicle-mounted audio management.
Description
technical field [0001] The invention relates to an audio management system, in particular to a vehicle embedded audio management system and a management method. Background technique [0002] With the vigorous development and popularization of digital technology, digital multimedia products are widely used in society and life, and most multimedia entertainment devices involve audio technology. Audio technology has undergone a transition from analog to digital in the course of its evolution. As far as audio quality is concerned, the closer digital audio is to analog sound quality after analog-to-digital / digital-to-analog conversion, the better. The audio technology in the digital age is not to abandon the model variable, but an organic combination of the two, learn from each other, and use digital technology to pursue analog sound quality. With the rapid development of modern computer technology, embedded computer systems are becoming more and more complex, and there are more...
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IPC IPC(8): H04R3/12
CPCH04R3/12H04R2430/00
Inventor 王浩吴建飞卢玉斌
Owner 扬州航盛科技有限公司