Method, system and computer for realizing sound-and-caption synchronization in video file
A technology of audio-visual files and sound, which is applied in the field of synchronizing audio and subtitles in audio-visual files, can solve problems affecting user experience, and achieve the effect of improving user experience
Active Publication Date: 2010-08-18
LENOVO (BEIJING) CO LTD
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Problems solved by technology
[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the user needs to independently judge the screen content selection correction time period, and the user may need to make multiple adjustments to complete the synchronization, which affects the user experience
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[0034] In order to make the purpose, technical features and implementation effects of the present invention clearer, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] A typical video file contains a video stream, one or more audio streams, and one or more independent subtitle files. When a traditional player plays an audio-visual file, it first needs to split the audio-visual file into a video stream and an audio stream and then play it independently. For a subtitle file, it needs to call and display it separately. In the embodiment provided by the present invention, provide a kind of method that realizes the synchronous sound and subtitle in audio-visual file, as figure 1 shown, including:
[0036] Step 101. Obtain the first sound and the first subtitle of the video file currently being played, wherein the first sound does not match the first subtitle, and the fir...
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The invention provides a method, a system and a computer for realizing sound-and-caption synchronization in a video file. The method comprise the following steps of: acquiring a first sound and a first caption of the currently played video file, wherein the first sound is not matched with the first caption, the first sound corresponds to a first time stamp in the video file, and the first captioncorresponds to a second time stamp in the video file; calculating the similarity of the first sound and the first caption to obtain a result; when the result shows that the similarity is greater thana threshold value, comparing the first time stamp with the second time stamp to obtain a time difference value; and adjusting the first time stamp and the second time stamp according to the time difference value to enable the first sound and the first caption in the video file to be synchronously output. Due to the adoption of the method, the system and the computer for realizing the sound-and-caption synchronization in the video file, automatic synchronization of the sound and the caption can be realized when the played sound and the current caption are asynchronous, so user experience is greatly improved.
Description
technical field [0001] The invention relates to audio-visual technology, in particular to a method, device and computer for synchronizing audio and subtitles in audio-visual files. Background technique [0002] People's consumption of entertainment accounts for an increasing proportion of consumption expenditure, among which film and television entertainment is a major way; currently there is a problem that subtitles and picture sound cannot be synchronized in film and television playback, which greatly affects user experience. In the process of playing a non-native language film and television, it is unacceptable that the subtitles are out of sync with the sound of the picture. [0003] At present, the most common solution to the out-of-sync subtitle and picture sound is to use manual operation by the user, and the user manually advances or delays the appearance time of the subtitle according to the picture he sees. [0004] In the process of implementing the present inven...
Claims
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Login to View More IPC IPC(8): H04N5/278G11B27/10G11B27/34
Inventor 武亚强王哲鹏王巍张建忠蔡明祥王兴楠於朝晖
Owner LENOVO (BEIJING) CO LTD