KR20000041478A - Digital song accompaniment system - Google Patents

Abstract

PURPOSE: A digital song accompaniment system is provided to match the image on a screen with the mood of the song. CONSTITUTION: A digital song accompaniment system includes a plurality of disks, a memory(130), a disk changer player(110), a controller(120), an overlay(140), a microphone(170), and a mixer. The disks store a first index which enables the disk to discriminate the genre of the background screen recorded on the disk at the TOC(table of contents) of each disk. Each of the disks only contains a background screen matching only one music genre. The memory(130) stores caption information and accompaniment information. The caption information and accompaniment information further contains a second index which is used to discriminate the genre of corresponding music. The disk changer player(110) reads the TOC of each disks and displays a background screen of selected disk. The controller(120) detects The first index of each TOC and controls so as for the music information corresponding to the music selected on the screen in a way that the same disk which contains the music information of the first index is played. The overlay(140) overlays the caption information on the background screen. The mixer mixes the input of the voice of a user with the accompaniment information.

Description

DIGITAL KARAOKE SYSTEM

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital song accompaniment system, in particular, that distinguishes a song by genre and displays background image information suitable for the genre of the selected song.

In general, a song accompaniment system is a device that processes organically while synchronizing three kinds of accompaniment information, subtitle information, and video information. The accompaniment information is data of a Midi (Music Instrument Device Interface) standard and has an average capacity of 30k to 120k bytes per song. Subtitle information consists of song lyrics code and font. Character fonts are typically 512 bytes long in Korean Hangul. There are two kinds of video information: still picture and moving picture. Still picture having the quality of TV broadcasting level requires 128k bytes per screen and moving picture requires 1.2Mbps data capacity.

When the song accompaniment system is set, the Midi data is transmitted to the sound source device at the speed of the song. The sound source device plays the accompaniment music according to the Midi data and outputs the subtitles on the screen. It also changes the color of the subtitles as the music plays and outputs new subtitles. This is performed by a process of outputting a text font according to the song lyrics code to a certain place on the screen, and also changing the color of the printed text font according to the speed of music playing. It also outputs a still image or video on the screen.

Music performances and subtitles should be precisely timed, synchronized. When using still image as wallpaper, user should output one screen every 2-3 seconds so that users do not feel bored. In case of using video, it maintains 1.2Mbps transmission speed to prevent screen disconnection. do.

Meanwhile, as a large capacity / high speed optical disc system has been developed, a digital song accompaniment system has been implemented using a disc. In a digital song accompaniment sequence using a disc, a large amount of video information is usually recorded on a disc, and subtitle and accompaniment information with a relatively small amount of data is stored on a ROM or the like. Accordingly, in the digital song accompaniment system using a disc, image information is reproduced according to the music playing speed, and the caption information stored in the ROM is overlaid on the background screen.

As described above, in the digital song accompaniment system using a disk, in the conventional case, image information irrespective of the genre of music or the atmosphere is often displayed as a background screen. That is, when the user selects music, video information is reproduced sequentially from the start of the disc, while there is no special order. Therefore, even if the user selects a music of a certain genre, the video information reproduced on the disc may be displayed as a background screen that is completely different from the selected music.

Accordingly, an object of the present invention is to provide a digital song accompaniment system for matching the selected music with the atmosphere of the background screen.

According to the present invention for achieving the above object, only the background screens suitable for one music genre are recorded on each disc, and the TOC of each disc has a first index for discriminating the genre of the background pictures stored in itself. A plurality of disks listed; Subtitle information and accompaniment information are stored, and the subtitle information and accompaniment information include a memory including a second index for distinguishing a genre of a corresponding music; A disc follower player that reads the TOC recorded in the plurality of discs and reproduces a background screen of a designated one of the plurality of discs; When the first indexes included in the TOC information of each disc read by the disc selector player are detected, and a key signal for designating a predetermined song is input from the outside, music information corresponding to the designated song is stored in the memory. A control unit configured to control the disc framer player so that the disc is reproduced from the memory, and the disc containing the first index equal to the second index included in the music information output from the memory is played. An overlay unit for overlaying and outputting caption information output from the memory on a background screen output from the disc selector player; MIC; And a mixer for mixing and outputting the user sound input through the microphone and the accompaniment sound information output from the memory.

1 is a block diagram of a digital song accompaniment system according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

110: disc framer player 120: control unit

130: memory 140: overlay unit

150: Karaoke IC 160: Mixer

170: microphone

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a digital song accompaniment system according to an embodiment of the present invention.

In FIG. 1, the digital song accompaniment system includes a disc marker player 110, a controller 120, a memory 130, an overlay unit 140, a karaoke IC 150, a mixer 160, and a microphone 170. Include.

Referring to FIG. 1, a plurality of discs 110A, 110B, and 110C may be mounted in the disc seasoner player 110. Here, each of the disks 110A, 110B, and 110C has a one-to-one correspondence with backgrounds suitable for different genres, for example, a lot, a ballad, a song, and a nursery rhyme. (Table Of Content) contains an index for classifying the genre of video information stored in the disc.

Therefore, when each of the discs 110A, 110B, and 110C is mounted on the disc chooser player 110, the disc chooser player 110 displays the TOC information of the disc 110A, the TOC information of the disc 110B, and the disc. TOC information of 110C is sequentially read and provided to the control unit 120.

The controller 120 determines the genre of the background screen contained in each of the disks 110A, 110B, and 110C based on the index included in the TOC information of each of the disks 110A, 110B, and 110C.

On the other hand, the memory 130 stores subtitle information and accompaniment information. In this case, the subtitle information and accompaniment information include an index for distinguishing the genre of the music information.

Therefore, when the user provides the controller 120 with a selection key signal for selecting a predetermined song using an external key, the controller 120 determines whether the selected music is stored in the memory 130 and selects the music. If the selected music is stored in the memory 130, the index included in the music information is detected to determine the genre of the selected music. When the genre of the selected music is determined, the controller 120 controls the memory 130 to output accompaniment information and subtitle information of the selected music, and includes a background screen corresponding to the selected music genre. The disc framer controls the player 110 to play the disc.

The disc framer player 110 plays the disc including the background screen corresponding to the genre of music selected by the control of the controller 130, and provides the reproduced background screen to the overlayer 140.

Meanwhile, the memory 130 provides the overlay unit 140 with subtitle information corresponding to the music selected by the control of the controller 120, and the accompaniment sound information corresponding to the selected music to the mixer 160. to provide.

When the user sings using the microphone 170, the microphone sound is provided to the mixer 160 after being echoed to the karaoke IC 150.

Therefore, the overlay unit 140 overlays the subtitle information on the background screen suitable for the genre of the selected music and outputs it to the monitor not shown, and the mixer 160 outputs the echoed microphone sound and the selected music. Corresponding accompaniment information is mixed and output to the speaker side (not shown).

As described above, the present invention allows the selected music to match the atmosphere of the background screen, and thus, the song accompaniment system can be more enjoyed.

Claims (1)

A plurality of disks each containing only background screens suitable for one music genre, and a TOC of each disk having a first index for discriminating the genre of the background pictures stored therein; Subtitle information and accompaniment information are stored, and the subtitle information and accompaniment information include a memory including a second index for distinguishing a genre of a corresponding music; A disc follower player that reads the TOC recorded in the plurality of discs and reproduces a background screen of a designated one of the plurality of discs; When the first indexes included in the TOC information of each disc read by the disc selector player are detected, and a key signal for designating a predetermined song is input from the outside, music information corresponding to the designated song is stored in the memory. A control unit configured to control the disc framer player so that the disc is reproduced from the memory, and the disc containing the first index equal to the second index included in the music information output from the memory is played. An overlay unit for overlaying and outputting caption information output from the memory on a background screen output from the disc selector player; MIC; And a mixer for mixing and outputting the user sound input through the microphone and the accompaniment sound information output from the memory.