JP2000056779A - Karaoke device and its recording medium - Google Patents

Abstract

(57) [Summary] [Problem] A karaoke apparatus capable of storing a large amount of music data on an optical disk, reproducing both karaoke data and video data with a general-purpose optical disk player, and supporting background video without using an external video transmission device. The purpose is to provide. Kind Code: A1 A karaoke data demodulation unit for demodulating karaoke data recorded on a linear PCM track of an optical disc into performance data and character data such as titles and subtitles.
And instructs the sound source 5 to generate a musical tone in accordance with the demodulated performance data, and superimposes subtitle display data as subtitle data in which a character character is generated from the demodulated character data into the video data. And a control unit 2 for instructing the video synthesizing unit 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of reproducing an optical disk on which video data and karaoke data are recorded, synthesizing subtitles included in the karaoke data with video data as a background video, and outputting the synthesized data. The present invention relates to a karaoke apparatus for performing musical tones according to performance data to be played and a recording medium for the apparatus.

[0002]

2. Description of the Related Art In recent years, in a karaoke apparatus, a hard disk, a semiconductor memory, an optical disk, or the like is used as a recording medium to store a large amount of karaoke data.

Hereinafter, a conventional karaoke apparatus will be described. As shown in FIG. 3, for example, a conventional karaoke apparatus includes an optical disk player 21, a control unit 22, a nonvolatile semiconductor / disk memory 23, a video synthesizing unit 24, and a sound source 25.
And an operation unit 26.

[0004] The optical disk player 21 reproduces an optical disk and outputs a composite video signal. The control unit 22 controls the reproduction and stop of the optical disk player 21 in accordance with an instruction from the operation unit 7, and performs karaoke of musical performance data such as accompaniment and subtitles from the mass storage device of the nonvolatile semiconductor / disk memory 23. Reads a data file. The control unit 22 analyzes the read musical performance data and subtitle data, and extracts event data and timing data. Then, the event data is sequentially executed according to the timing data. Specifically, a character is generated from the event data of the caption data, caption display data is generated, and the caption display data is output to the video compositing unit 24. At the same time, it generates sound source performance data and outputs it to the sound source 25.

The video synthesizing section 24 superimposes the subtitle display data from the control section 22 on the background video data for karaoke from the optical disc player 21 and outputs it as a composite video signal.

The sound source 25 is a sound source that generates a musical sound signal such as accompaniment according to the sound source performance data.
There are M sound sources and the like. The operation unit 26 is for giving an instruction relating to karaoke performance, and is for inputting selection of performance music, start or stop of performance, change of key control and tempo, and the like. The operation unit 26 includes an operation panel, a remote controller, and the like.

As another karaoke apparatus different from the above-mentioned karaoke apparatus, there is a karaoke apparatus described in Japanese Patent Laid-Open No. 8-314485. As shown in FIG. 4, the karaoke apparatus includes a disk 31 on which moving image information and performance information are recorded, a disk rotation control unit 32 for controlling rotation of the disk 31, and a pickup 33 for reading information on the disk 31. A synchronization signal detection unit 34, a reproduction signal processing unit 35, a separation unit 36, a main video decoder 37, an audio decoder 38, a sub video decoder 39, an adder 40,
Microphone 41, system microcomputer 42, operation unit 43, memory 44, and VA as a variable gain amplifier
45 and the like.

In the case of this karaoke apparatus, information read from the disk 31 is input to a reproduction signal processing unit 35. The reproduction signal processing unit 35 performs reproduction processing such as demodulation of the read information and error detection / correction. The reproduced data (management information) is stored in the memory 44. The system microcomputer 42 reads each data based on the header information analyzed from the demodulation and management information. The read data is input to the separation unit 36. The separation unit 36 separates the reproduced signal sequence into a main video signal such as a background moving image and a sub-video signal such as characters and an audio signal such as a music piece or accompaniment.

Each of the separated video signals is decoded by a main video decoder 37 and a sub video decoder 39, respectively, and then output to an external monitor as a moving image output and a character output. The separated audio signal such as a music piece or accompaniment is demodulated by an audio decoder 38, mixed with a microphone, and output as an audio signal.

[0010]

In the conventional karaoke apparatus shown in FIG. 3, an optical disk is used as a recording medium for karaoke data. For example, a DVD (Digital Ver.
satile Disk)-When an optical disk such as VIDEO is used, a device specializing in video reproduction as a DVD video player, or a DVD-ROM / DVD-VI
A device for reading a data file as a hybrid type of DEO is conceivable. However, due to the nature of AV equipment, the aforementioned DVD video player is not provided with an unnecessary data file reading function of reading, for example, a MIDI file or the like as a performance. video·
The player could not be used.

In the karaoke apparatus shown in FIG. 4, character information such as subtitles and performance music are video signals, and audio signals that have been synthesized in advance are separated and reproduced by the separation unit 15. It's just Therefore, even if compression is performed, the compression rate is low and even if one DVD-Video is used, several hundred karaoke songs can be stored at the highest in 10,000 in order to prevent deterioration in sound quality. A large amount of song data at the song level cannot be stored.

According to the present invention, it is possible to cope with a background image of a moving image using a general-purpose DVD video player without requiring a conventional mass storage device storing a large amount of music data such as a semiconductor / disk memory. An object is to provide an inexpensive karaoke device.

[0013]

A karaoke apparatus according to the present invention includes a karaoke data demodulator for demodulating karaoke data recorded on a linear PCM track of an optical disc into performance data and character data such as titles and subtitles. A control unit for instructing the sound source to generate a musical tone in accordance with the performance data, and instructing the video synthesizing unit to superimpose the caption data that has generated the character character from the demodulated character data on the video data. Is provided.

According to the present invention, it is possible to use a general-purpose DVD video player to handle a background image of a moving image without using a conventional mass storage device such as a semiconductor / disk memory for storing a large amount of music data. An inexpensive karaoke device can be provided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention reproduces an optical disk on which video data and karaoke data are recorded, and synthesizes subtitles included in the karaoke data with video data as a background video. A karaoke apparatus for outputting music data and performing musical tones in accordance with performance data included in the karaoke data, wherein
A karaoke data demodulation unit that demodulates the karaoke data recorded on the track into performance data and character data such as titles and subtitles, and instructs a sound source to generate a musical tone in accordance with the demodulated performance data, and demodulates the demodulated data. A karaoke apparatus provided with a control unit for instructing a video synthesizing unit to superimpose subtitle data in which a character character is generated from character data onto the video data, and a conventional semiconductor / disk memory, etc. It is possible to provide an inexpensive karaoke apparatus that can use a general-purpose DVD video player and can cope with a background image of a moving image without requiring a mass storage device storing a large amount of music data.

According to a second aspect of the present invention, a karaoke data demodulation unit converts karaoke data recorded on a linear PCM track of an optical disk into a karaoke music performance MI.
The karaoke apparatus according to claim 1, wherein the karaoke apparatus is configured to demodulate into DI data and character data such as titles and subtitles, thereby providing a karaoke apparatus for reproducing a recording medium on which a large amount of karaoke data is recorded.

According to a third aspect of the present invention, there is provided a video track for recording video data as a background video, and a linear PCM track for recording performance data as karaoke data and character data such as titles and subtitles. By recording performance data and video data on a recording medium, subtitles and the like can be displayed in the background of video such as a moving image. The apparatus can be made unnecessary, and a recording medium for karaoke performance that is space-saving, low-cost, and highly entertaining can be provided.

Hereinafter, a karaoke apparatus of the present invention and its recording medium will be described based on specific embodiments. (Embodiment) A karaoke apparatus according to an embodiment of the present invention
As shown in FIG. 1, a karaoke data demodulator 3 for demodulating karaoke data recorded on a linear PCM track of an optical disk as a recording medium into performance data and character data such as titles and subtitles, and demodulated performance data. Instructing the sound source 5 to generate a musical tone in accordance with the subtitle display data, and instructing the video synthesizing unit 4 to superimpose subtitle display data as subtitle data in which a character character is generated from demodulated character data into the video data. And a control unit 2 that performs the control.

The temporary storage memory 6 temporarily stores various data output from the karaoke data demodulation unit 3 and processed by the control unit 2, and includes a semiconductor RAM (Rand).
omAccess Memory). The operation unit 7
This is for giving an instruction relating to karaoke performance, and for inputting selection of performance music, start / stop of performance, key control, change of tempo, and the like. This is composed of an operation panel, a remote controller and the like.

Here, an optical disk reproduced by the optical disk player 1 will be described. As shown in FIG. 2, the optical disc is provided with a video track 11 and a linear PCM track 12, and the video track 11 records video data as a background image of karaoke. The header, caption data, and musical performance data as karaoke data are greatly compressed (for example, 1/40 in 44 kHz sampling conversion).
0) is recorded. The video track 11 and the linear PCM track 12 are managed by, for example, video chapter numbers so that an arbitrary video can be selected to some extent. Each chapter is composed of a video track 11 and a linear PCM track 12. Also, the chapter numbers # 1 to # 499 are stored in the karaoke data section 13.
And the chapter numbers # 500 to #nnn
Up to n are assigned to the karaoke video section 14.

A video track of the karaoke video section 14 records a video used as a background video, and a video track of the karaoke data section 13 records a video such as a blue background. The video such as the blue back of the video track of the karaoke data section 13 is not used as the background video. The linear PCM track of the karaoke data section 13 records a header, caption data, and musical performance data. The linear PCM track of the karaoke video section 14 exists but is not used because it has no sound.

The data format 15 of the linear PCM audio track having the chapter number # 2 is provided with, for example, two sets of one-class data including a reader, data, and a trailer. This data is configured between a reader and a trailer. In this example, 1 class data is 2
Although two sets are arranged side by side, two or more pieces of one class data may be arranged.

The operation of the karaoke apparatus according to the present embodiment for reproducing an optical disk on which video data and karaoke data are recorded will be described. For example, the target karaoke data of the video chapter number # 2 is
, The control unit 2 reads the header, subtitle data and musical performance data from the linear PCM audio track of the video chapter number # 2 of the karaoke data unit 13 from the optical disc, It instructs the optical disc player 1 to reproduce an optical disc so as to read out a composite video signal as video data from the video track.

In the optical disc player 1, the header, the subtitle data, the musical performance data and the composite video signal are read out, the header, the subtitle data and the musical performance data are output to the karaoke data demodulator 3, and the composite video signal is output as the video. It is output to the synthesis unit 4.

The karaoke data demodulating unit 3 converts the header, subtitle data and musical performance data read from the optical disk and output from the digital audio terminal of the optical disk player 1 into MIDI data for karaoke music performance and encoded titles. And character data such as subtitles.

The control unit 2 analyzes the read subtitle data and musical performance data, and extracts event data and timing data. Then, the event data is sequentially executed according to the timing data. Specifically, the control unit 2 generates a character from the event data of the subtitle data to generate subtitle display data and outputs it to the video synthesizing unit 4, generates sound source performance data and outputs it to the sound source 5,
The reproduction time of the musical performance data and the caption display data is managed and controlled.

The temporary storage memory 6 temporarily stores various data processed by the control unit 2 and stores the semiconductor R
It is composed of an AM (Random Access Memory) or the like.
In the video synthesizing unit 4, the subtitle display data from the control unit 2 is
The video data from the optical disc player 1 is superimposed and output as a composite video signal. The sound source 5 generates a tone signal in accordance with the sound source performance data from the control unit 2, and uses a PCM sound source or an FM sound source. ing.

With this configuration, the optical disk player can demodulate the karaoke data such as karaoke music performance MIDI data and coded karaoke data such as titles and subtitles, which are largely compressed and recorded on the linear PCM track of the optical disk. A file read function can be provided, a general-purpose DVD video player can be used, and a large number of songs generally required for a karaoke device are incorporated. Can be.

Specifically, by playing back an optical disk on which a background image is recorded simultaneously in addition to the music data,
Karaoke with high amusement can be provided at low cost and in a small space. In other words, the karaoke apparatus alone can perform a karaoke performance with a moving image suitable for a song as a background, and does not require an external supply of video data. For example, in the case of using a DVD (in the case of a single-sided single-layer disc) as the optical disc, even if the music data is stored in 10,000 pieces per piece, the video data for the background image is further transferred for 3 hours.
It can record for 0 minutes or more.

In this embodiment, the performance data is stored in a MIDI (Karaoke music performance MIDI). MusicalInstrument Digital
Interface) data, but the same effect can be obtained even when the performance data is data other than MIDI data for karaoke music performance and can be significantly compressed.

[0031]

As described above, according to the karaoke apparatus of the present invention, a karaoke data demodulator for demodulating karaoke data recorded on a linear PCM track of an optical disc into performance data and character data such as titles and subtitles. Control for instructing the sound source to generate a musical tone in accordance with the demodulated performance data, and for instructing the video synthesizing unit to superimpose the caption data, which is a character character generated from the demodulated character data, on the video data. With this arrangement, the performance data is encoded from the linear PCM track of the optical disk without the need for a conventional mass storage device such as a semiconductor / disk memory for storing a large amount of music data. By restoring character data such as titles and subtitles, the most simple AV device It enables utilization of form as DVD video player Te, it is possible to provide an inexpensive karaoke apparatus capable of corresponding to the background image according to video using a general-purpose DVD-Video player.

Further, in the case of a recording medium provided with a video track for recording video data as a background video, and a linear PCM track for recording performance data as karaoke data and character data such as titles and subtitles, this recording medium is used. By recording performance data and video data on a recording medium, subtitles and the like can be displayed in the background of a video such as a moving image, and a conventional external video data transmission device can be made unnecessary. An advantageous effect that a recording medium for karaoke performance with high space and low entertainment at low cost can be provided is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of a karaoke apparatus according to an embodiment of the present invention.

FIG. 2 is an exemplary diagram showing a linear PCM track of the optical disc according to the embodiment;

FIG. 3 is a block diagram of a conventional karaoke apparatus.

FIG. 4 is a block diagram of a conventional karaoke apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical disk player 2 Control part 3 Karaoke data demodulation part 4 Video composition part 5 Sound source 6 Temporary storage memory 7 Operation part 11 Video track 12 Linear PCM track 13 Karaoke data part 14 Karaoke video part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C053 FA06 FA24 GB01 GB06 GB11 GB12 GB21 JA03 JA07 JA16 KA05 KA24 LA04 LA06 5D080 BA02 BA03 BA05 DA08 FA02 FA60 HA07 5D108 BA04 BA33 BA35 BA36 BB03 BE07 BG02

Claims (3)

[Claims] 1. An optical disc on which video data and karaoke data are recorded is reproduced, a subtitle included in the karaoke data is synthesized and output to video data as a background video, and a musical performance is performed according to performance data included in the karaoke data. A karaoke apparatus for demodulating karaoke data recorded on a linear PCM track of the optical disc into performance data and character data such as titles and subtitles; and a karaoke data demodulator for demodulating musical tones according to the demodulated performance data. A karaoke apparatus comprising: a control unit that instructs a sound source to generate the sound data, and instructs a video synthesizing unit to superimpose subtitle data in which a character character is generated from demodulated character data onto the video data. 2. The karaoke data demodulation unit according to claim 1, wherein the karaoke data demodulation unit demodulates the karaoke data recorded on the linear PCM track of the optical disk into MIDI data for karaoke music performance and character data such as titles and subtitles. Karaoke equipment. 3. A video track for recording video data as a background video, and a linear track for recording performance data as karaoke data and character data such as titles and subtitles.
A recording medium provided with a CM track.