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Device for synchronizing video and audio of Kara-OK system

A technology for synchronizing audio and converting devices, which is applied to components of TV systems, TVs, color TVs, etc., to achieve the effect of convenient use mode and rich display methods

Inactive Publication Date: 2006-02-01
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the previous karaoke system had the problem of directly displaying the internal background screen or external video screen regardless of the song atmosphere or accompaniment stored in the background video generation unit.

Method used

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  • Device for synchronizing video and audio of Kara-OK system
  • Device for synchronizing video and audio of Kara-OK system
  • Device for synchronizing video and audio of Kara-OK system

Examples

Experimental program
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Embodiment Construction

[0022] Explanation is as follows with accompanying drawing.

[0023] figure 2 It is a structural diagram of a video and audio synchronization device of a karaoke system according to the present application.

[0024] refer to figure 2 , it is with the accompaniment data memory 120 of storing accompaniment data; The lyrics data memory 122 of recording lyrics data; Store the subtitle ROM 125 corresponding bitmap font with above-mentioned lyrics data; Above-mentioned lyrics data conversion is stored as bitmap A font-based video memory 126; a background image storage unit 127 for storing background images; a background image generation unit 128 for generating the above-mentioned background images; a majority death / preservation for processing and outputting background images in the form of decimation or interpoliation Part 129; The image signal and the background image output from the video memory 126 are mixed and output to the image synthesis part 130 of the display 131; the a...

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Abstract

The device is composed of following parts: memory of accompaniment data for storing accompaniment data; memory of song data for recording song data; video memory in use for converting song data to image signal of fonts in bit map mode; memory of background image for storing background image; part for generating background image is in use for generating background image; based on accompaniment data of each instrument, a generation part of accompaniment signal in use for generating accompaniment signal; audio synthesis part for synthesizing sound signal from the accompaniment signal and userí»s sound from microphone and outputting synthesized sound through speaker; command input part in use for inputting number of song or commands for pointing other controlled operation; control part for controlling operation of song data after reading out accompaniment data and synchronized signal, and controlling speed of background image based on rhythm of song.

Description

【Technical field】 [0001] This application is about a karaoke system, in particular, it can simultaneously display the background picture, accompaniment and lyrics of each song, and is a device and method for synchronizing the video and audio of a song. 【Background technique】 [0002] In recent years, the karaoke system has been popularized. In fact, karaoke rooms are mainly used by young people and other men, women and children, and their utilization rate is also increasing. So wherever you go, you can easily find a karaoke room and enjoy the happiness it brings. [0003] General karaoke system such as figure 1 shown. [0004] refer to figure 1 , it is based on the accompaniment data memory 20 that stores a plurality of musical instrument accompaniment data according to the digital sound (abbreviated as MIDI) standard; The lyric data memory 22 that records lyrics; Store the subtitle ROM 25 corresponding to the above-mentioned bitmap font; Store the background image stora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/04G11B27/00
Inventor 李春熙
Owner LG ELECTRONIC (HUIZHOU) CO LTD
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