Multimedia audio video data synchronization computing method

Abstract

The invention discloses a multimedia audio video data synchronization computing method, comprising the following steps: a, respectively producing an audio material and a video material used for an audio video synchronization test, and synthesizing the audio material and the video material to generate an audio video synchronization test file; b, establishing a test communication connection betweena first test computer and a second test computer, sending the audio video synchronization test file to the second test computer, playing the audio video synchronization test file by the first test computer, and turning on a camera in test communication software by the first test computer, so as to acquire audio video data played by the first test computer self; and c, viewing a video and listeningto a sound in the test communication software by the second test computer, converting the sound into a visual oscillogram, intercepting the visual oscillogram and the video played in the test communication software at the same moment, and computing audio video time difference. By virtue of the method disclosed by the invention, an objective real condition of the audio video time difference can becomputed, and an accurate and reliable basis is provided for optimization of audio video synchronization.

Description

technical field [0001] The invention belongs to the field of multimedia, and in particular relates to a synchronous computing technology for multimedia audio and video data in communication software. Background technique [0002] Today, with diversified network communications, audio and video synchronization is the most intuitive user experience. Since different people have different perceptions of the out-of-sync time between the audio they hear and the actually played video, people who are more sensitive to hearing and vision If you feel that the out-of-sync time is relatively long, you will feel that the audio and video synchronization quality of the product is also relatively poor, and people who are not sensitive to hearing and vision will have a different experience. [0003] In the current technology, some audio and video synchronization is realized based on the RTP timestamp and NTP timestamp of the RTCP sender message, which does not reflect how out of sync the audi...

AI Technical Summary

Problems solved by technology

[0002] Today, with diversified network communications, audio and video synchronization is the most intuitive user experience. Since different people have different perceptions of the out-of-sync time between the audio they hear and the actually played video, people who are more sensitive to hearing and vision You will feel that the out-of-sync time is relatively large, and the quality of audio and video synchronization of the product is also relatively poor, and people who are not sensitive to hearing and vision will have a different experience

[0003] In the current technology, some audio and video synchronization is realized based on the RTP timestamp and NTP timestamp of the RTCP sender message, which does not reflect how out of sync the audio actually heard by the user and the video seen, and some require specific assistance Device to calculate the audio and video synchronization time difference, there is a security risk

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