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Sound box system audio and video playing control method and device based on HDMI (High Definition Multimedia Interface)

A HDMI interface, audio and video playback technology, applied in the field of audio and video synchronization control, can solve the problems of audio and video data synchronization error, content loss, poor user experience, etc., and achieve the effect of high user experience

Pending Publication Date: 2022-03-11
广州番禺巨大汽车音响设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing audio system, it generally includes a display device and an audio device, and the audio system generally receives external audio and video data for playback at the same time, that is, the audio data is played through the impact device, and the video data is transmitted to the display device for playback. Then, because the audio and video data transmitted by the external audio and video source may have synchronization errors, or when the audio system itself is playing control, because the audio and video data is directly decoded and transmitted to the display device and the audio device respectively, in Other reasons such as the loss of part of the content during the decoding process can easily lead to out-of-sync problems between the content displayed on the display device and the content played by the audio device, resulting in poor user experience

Method used

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  • Sound box system audio and video playing control method and device based on HDMI (High Definition Multimedia Interface)
  • Sound box system audio and video playing control method and device based on HDMI (High Definition Multimedia Interface)

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Embodiment 1

[0042] see figure 1 , figure 1 It is a schematic flowchart of an audio and video playback control method for a speaker system based on an HDMI interface in an embodiment of the present invention.

[0043] Such as figure 1 Shown, a kind of audio and video playback control method of speaker system based on HDMI interface, described method comprises:

[0044] S11: After the speaker system is turned on and powered on, monitor the level signal of the HDMI interface in real time;

[0045] In the specific implementation process of the present invention, the real-time monitoring of the level signal of the HDMI interface includes: the speaker system monitors the level signal of the HDMI interface in real time based on the monitoring circuit, and the level signal includes a high level signal and For low-level signals, the speaker system includes a playback controller, a speaker and a display screen, the playback controller is respectively connected to the speaker and the display scre...

Embodiment 2

[0068] see figure 2 , figure 2 It is a schematic diagram of the structural composition of an audio and video playback control device for a speaker system based on an HDMI interface in an embodiment of the present invention.

[0069] Such as figure 2 Shown, a kind of speaker system audio and video playback control device based on HDMI interface, said device comprises:

[0070] Monitoring and judging module 21: used to monitor the level signal of the HDMI interface in real time after the speaker system is powered on, and judge whether the HDMI interface is connected based on the level signal;

[0071] In the specific implementation process of the present invention, the real-time monitoring of the level signal of the HDMI interface includes: the speaker system monitors the level signal of the HDMI interface in real time based on the monitoring circuit, and the level signal includes a high level signal and For low-level signals, the speaker system includes a playback control...

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Abstract

The invention discloses a sound box system audio and video playing control method and device based on an HDMI (High Definition Multimedia Interface), and the method comprises the steps: monitoring a level signal of the HDMI in real time after the sound box system is started and powered on, and judging whether the HDMI is connected or not; if the HDMI interface is connected, the sound box system sends ready information to the audio and video source equipment; receiving audio and video data information sent by the audio and video source equipment, and decoding the audio and video data information to obtain audio data information and video data information; caching the audio data information to a first cache region, and caching the video data information to a second cache region; and extracting audio data information in the first cache region and extracting video data information in the second cache region based on a synchronization timestamp to perform synchronous playing control. In the embodiment of the invention, the synchronous playing control of the loudspeaker box system on the high-definition audio and video data is realized, so that the user has higher use experience.

Description

technical field [0001] The invention relates to the technical field of audio and video synchronization control, in particular to an audio and video playback control method and device for a speaker system based on an HDMI interface. Background technique [0002] In the existing audio system, it generally includes a display device and an audio device, and the audio system generally receives external audio and video data for playback at the same time, that is, the audio data is played through the impact device, and the video data is transmitted to the display device for playback. Then, because the audio and video data transmitted by the external audio and video source may have synchronization errors, or when the audio system itself is playing control, because the audio and video data is directly decoded and transmitted to the display device and the audio device respectively, in Other reasons such as the loss of part of the content during the decoding process can easily cause th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/8547H04N21/43H04N21/433H04N21/231H04N21/236H04N21/262H04N21/4363H04R1/02
CPCH04N21/8547H04N21/43072H04N21/4331H04N21/23602H04N21/23106H04N21/2625H04N21/43635H04R1/02
Inventor 庄少宏李富涛曾庆法李叶永肖关胜王泽宇王翔宇葛丰达钟红波刘展亮李文彬陈大磊刘洋王军张小鸿李世旺袁海黄永添
Owner 广州番禺巨大汽车音响设备有限公司