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Audio and video synchronization test method and device

A technology of audio and video synchronization and video signal, which is applied in TV, electrical components, image communication, etc., and can solve the problems of audio playback and video playback time extension

Active Publication Date: 2018-04-10
SHENZHEN TCL NEW-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above, it is necessary to provide an audio and video synchronization test method and device to solve the problem of excessively long audio playback and video playback delays in intelligent audio and video playback devices

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  • Audio and video synchronization test method and device
  • Audio and video synchronization test method and device
  • Audio and video synchronization test method and device

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The audio-video synchronization test method of the present invention can be applied to any audio-video playback device equipped with a camera, and the audio-video synchronization test device of the present invention can be deployed on any audio-video playback device equipped with a camera; the audio-video synchronization test method and device of the present invention , the smart audio and video playback devices equipped with cameras include smart TVs and other smart audio and video playback devices, and this embodiment does not exhaustively list them all. In the following embodiments of the audio-video synchronization test method and device of the present inve...

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Abstract

The invention discloses an audio and video synchronization test method and apparatus. When a device under test is tested, an auxiliary device for assisting the test is introduced. Audio and video signals, produced when the auxiliary device plays standard audio and video synchronization signals, are acquired. Meanwhile, when the device under test records that the auxiliary device plays the standard audio and video synchronization signals, audio and video signals outputted by the device under test are acquired. Audio and video synchronization values of the device under test are calculated according to the acquired audio and video signals of the auxiliary device and the audio and video signals of the device under test. The invention has the beneficial effects of reducing the audio and video playing time delay in an intelligent audio and video playing device.

Description

technical field [0001] The invention relates to the field of intelligent audio and video playback, in particular to an audio and video synchronization testing method and device. Background technique [0002] With the rapid development and continuous improvement of image processing and audio processing technology, intelligent audio and video playback devices have also been endowed with more abundant functions. Taking smart TVs as an example, users can use smart TVs equipped with cameras and microphones to conduct online chats, video recordings, etc. The synchronous requirement of the audio and video playback of the TV set is relatively high, if the audio and video playback cannot be synchronized or the time delay of both playback is too long, it will certainly affect the normal use of the smart TV. [0003] A commonly used test index to measure the synchronization of audio and video played by smart audio and video playback devices is the audio and video synchronization param...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/04H04N17/00
Inventor 田俊
Owner SHENZHEN TCL NEW-TECH CO LTD
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