An audio transmission control system and control method
A transmission control and audio technology, applied in the field of audio transmission control system, can solve problems such as different processing methods and restrict the development of electronic products, and achieve the effect of solving difficult to take into account processing and enriching application scenarios
Active Publication Date: 2018-02-16
QINGDAO GOERTEK
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Problems solved by technology
[0003] The present invention provides an audio transmission control system and control method to solve the problem that existing electronic products have different processing methods due to different audio input sources, thus limiting the development of electronic products
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[0045] The core idea of the present invention is: in view of the problem in the prior art that electronic products such as head-wearing products support audio signals input by multiple input sources, it is impossible to take care of the processing, which restricts the development and application scenarios of electronic products such as head-wearing products. The audio and video signals input by the input source need to be encoded and decoded and the audio and video signals that do not need to be encoded and decoded are judged. The interface selection unit selects different internal interfaces to output to the input processing chip, and the audio signal is stripped from the received audio and video signals through the input processing chip, and the audio signal is transmitted to the sound processing chip through the I2S bus; The audio signal is processed and output through the speaker. The audio signals input by different audio input sources can be comprehensively considered,...
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The invention discloses an audio transmission control system and control method. The system comprises a signal judgment unit, an audio and video processing chip, an interface selection unit, an input processing chip and a sound processing chip. The signal judgment unit is used for judgment of coding and decoding of audio and video signals inputted by input sources, the audio and video signals are directly outputted to the interface selection unit if the judgment result is no, and the audio and video signals are outputted to the audio and video processing chip if the judgment result is yes. The audio and video processing chip is used for coding and decoding the inputted audio and video signals and then outputting the audio and video signals to the interface selection unit. The interface selection unit is used for receiving the audio and video signals and selecting different internal interfaces according to media formats to output the audio and video signals to the input processing chip. The input processing chip is used for stripping out audio signals from the received audio and video signals and transmitting the audio signals to the sound processing chip via an I2S. The sound processing chip is used for processing the transmitted audio signals and then outputting the audio signals via a loudspeaker. According to the audio transmission control system, sound sources inputted by different input sources can be outputted so that audio considered processing is realized.
Description
technical field [0001] The invention relates to the field of audio transmission of electronic products, in particular to an audio transmission control system and control method. Background technique [0002] With the development of electronic products, the requirements for integration are getting higher and higher. Only supporting external input audio signals or only locally decoded audio signals can no longer meet the development needs of electronic products. Head-mounted display devices (Head Mount Display, HMD for short) ) as an example, the existing head-mounted display device HMD has a single form of audio input source. This is because the audio input source in the head-mounted display device is different, and the processing methods are different, so it is difficult to achieve both audio and audio processing. , Therefore, the defect of not being able to take into account multiple audio input sources limits the development of electronic products to a certain extent. Co...
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IPC IPC(8): H04N21/439H04N5/60
CPCH04N5/60H04N21/439
Inventor 邓雪冰
Owner QINGDAO GOERTEK