Method and apparatus for synchronizing audio and video signals

A video signal and audio signal technology, applied in the multimedia field, can solve the problems of out-of-sync video signal and audio signal, reduce user viewing experience, etc., and achieve the effect of enhancing user experience and improving quality

Active Publication Date: 2018-07-06
BOE TECH GRP CO LTD
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  • Description
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Problems solved by technology

However, if figure 1 As shown, since the audio signal and the video signal are processed separately, it may cause the output of the processed video signal and the audio signal to be out of sync, resulting in a reduction in the user's viewing experience

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  • Method and apparatus for synchronizing audio and video signals
  • Method and apparatus for synchronizing audio and video signals
  • Method and apparatus for synchronizing audio and video signals

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts also belong to the protection scope of the present disclosure.

[0021] figure 1 A schematic block diagram of a known processing of video and audio signals is shown. Such as figure 1 As shown, after being decoded by the decoder, digital video data and digital audio data are respectively obtained. As mentioned above, digital video data and digital audio data are processed separately. For example, for digital audio data, an analog signal is obtained after a simple digital-to-analog conversion process, and provided to a playback device (such as ...

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Abstract

A method and apparatus for synchronizing audio and video signals are disclosed. Wherein, the method includes: extracting frame header information of each image frame included in the video signal; and, according to the frame header information of the image frame, adjusting the output of the audio signal so as to keep synchronization with the output of the video signal. According to the method and device of the present disclosure, by extracting the image frame information of the video signal and providing the corresponding image frame information to the audio signal, the output of the audio signal can be adjusted to ensure that the output of the audio is synchronized with the output of the video, thereby The quality of audiovisual programming is improved and the user experience is enhanced.

Description

technical field [0001] The present disclosure relates to the field of multimedia, in particular to a method and device for synchronizing audio and video signals. Background technique [0002] With the development of high-definition display technology, the resolution of images that can be displayed is getting higher and higher. For this reason, the performance of resources required for image processing of received video signals to finally display high-definition images on a display is also increasing. For example, for TVs or monitors with a resolution above 4K that are currently hot spots in the display field, most of them need to use FPGA or a dedicated processing chip with relatively powerful performance to process video signals. However, if figure 1 As shown, since the audio signal and the video signal are processed separately, it may cause the output of the processed video signal and the audio signal to be out of sync, resulting in reduced user viewing experience. Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/43
CPCH04N21/4307H04N21/4302H04N21/43635H04N21/4392H04N21/44008H04N21/44
Inventor 段然
Owner BOE TECH GRP CO LTD
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