Multimedia file producing and playing method, multimedia file producing device and player

Abstract

The invention discloses a multimedia file producing method which comprises the following steps: establishing the corresponding relationship between audio data stream position information of an audio and subtitle word information for synchronous display when playing the audio, saving the formed synchronous information, and obtaining and saving sound channel distribution information in audio information. The invention further discloses a multimedia file playing method, a multimedia file producing device and a player, and the invention can realize the synchronization of the audio and words all the time and facilitate the control of the audio output by establishing the synchronous information of the audio and the words and recording the sound channel distribution situation of the audio.

Description

technical field [0001] The invention relates to the communication field, in particular to a multimedia file production method, a multimedia file playback method, a multimedia file production device and a player. Background technique [0002] In today's society, karaoke is a kind of recreational activity loved by the public. Its most important feature is the function of synchronizing lyrics and voice to help improve the user's singing level and to remind the user of the lyrics when the user sings. In addition to getting karaoke discs from professional record companies to play on VCD or DVD devices, people hope that this kind of entertainment can be performed on more electronic devices, such as set-top boxes, mobile phones, etc. And I hope that there is an easy way to make professional-level karaoke with individuality and with lyrics and voice synchronization functions. [0003] Existing production method is to obtain required song and the corresponding lyrics of this song by...

AI Technical Summary

Problems solved by technology

Yet prior art lyrics and song synchronization are based on time as a benchmark, and the two processes of lyrics display and song playback only rely on the time relationship to establish the synchronization relationship between the two. To achieve both synchronization, lyrics display and song playback must follow the correct The time rhythm runs, and any error in one will cause the two to be out of sync and double the possibility of error

This synchronization technology based on the time base, if the song needs to be slowed down or fast-forwarded, and the lyrics display is still updated according to the normal time rhythm, then the lyrics and the song will inevitably be out of sync, which will cause some special and Practical functions, such as slow playback of songs at will, and irreconcilable contradictions generated when fast forwarding

Since the essence of this synchronization technology is to update and display each lyrics at the correct time, it also only records the start and end time of each lyrics. In the process of this single lyrics, it can only refresh the display at an even speed. For For some songs with mild melodies, the song corresponding to a lyrics may be several seconds long, and the speed is different. The synchronization accuracy of such lyrics and songs is obviously relatively low

Another very important function of karaoke is the opening and closing function of the original singing voice. On and off are controlled by peripheral hardware devices, which increases the operating procedures and difficulty, and also increases the cost of implementation

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