KR0132829B1 - Apparatus for generating accompaniment data and video music accompanied system suitable for this apparatus - Google Patents

Abstract

An apparatus for generating an accompaniment data and an image song accompaniment system are disclosed. The apparatus comprises a first memory(70) storing a MIDI(Musical Instrument Digital Interface) data; a second memory(72) for storing a song text; an accompaniment data generator(84) for inserting a text display control data so as to synchronize the song data to the MIDI data; and a data converter for receiving the accompaniment data from the accompaniment data generator to convert the received data.

Description

Accompaniment data generator and video song accompaniment

1 is a diagram showing the data format of a conventional disc recording medium for a video song accompaniment apparatus.

FIG. 2 is a diagram showing the data format of a music program recorded on the music program track shown in FIG.

3 is a diagram showing the data format of the accompaniment data shown in FIG.

4 is a block diagram showing a conventional apparatus for generating accompaniment data.

5 is a block diagram showing an accompaniment data generator according to the present invention.

6A to 6B are views for showing the operation of the apparatus shown in FIG.

7 is a block diagram showing a video song accompaniment device according to the present invention.

8 is a flowchart illustrating the operation of the controller illustrated in FIG. 7.

The present invention relates to an image song accompaniment device, and more particularly, to an accompaniment data generator for generating accompaniment data used in an image song accompaniment device and a video song accompaniment device suitable thereto.

The video song accompaniment device, also known as a karaoke appratus, is a device that allows a user to enjoy a song according to the song accompaniment signal while viewing the displayed song lyrics along with the song accompaniment signal.

In recent years, instead of a video song accompaniment device using a laser disc or the like that sampled and recorded an analog accompaniment signal, a video song accompaniment device using a compact disc and a semiconductor memory, which recorded digital accompaniment data, has become increasingly popular.

However, since the conventional laser disc records the lyrics information in the image information, the separate processing for the lyrics characters is not necessary to indicate the progress of the lyrics together with the progress of the accompaniment signal.

However, in a video song accompaniment apparatus using digital accompaniment data, the accompaniment information and the lyrics information should be separated and recorded, and the lyrics should be output to the video screen along with the playback of the accompaniment signal. Display control is required.

In order to synchronize the accompaniment signal with the lyrics signal, the lyrics display control signal is inserted between the MIDI data. This is done manually using an expensive editing device. The resulting accompaniment data is recorded and distributed on the video recording accompaniment disc recording medium.

Due to its characteristics, it is difficult to secure the recorded data. Therefore, there is a risk that the accompaniment data created by mobilizing expensive equipment and manpower can be cut and used without permission.

Accordingly, an object of the present invention is to provide an accompaniment data generating device which prevents the accompaniment data from being copied and used without permission.

Another object of the present invention is to provide a video song accompaniment apparatus suitable for reproducing accompaniment data generated by the accompaniment data generator.

Accompaniment data generating apparatus according to the present invention to achieve the above object is a first memory for storing MIDI data (Musical Instrument Digital Interface; MIDI) corresponding to the accompaniment signal of the song program, the song program to the lyrics data corresponding to the lyrics Lyrics display control for inputting MIDI data output from the first memory to store the second memory to be stored, and for synchronizing with the lyrics data between the MIDI data introduced by referring to the lyrics data stored in the second memory. And an accompaniment data generator for inserting data (midi data + lyrics display control data) to generate accompaniment data and an accompaniment data converter for encoding and encoding the accompaniment data generated by the accompaniment data generator. It features.

According to another aspect of the present invention, there is provided a video song accompaniment device, which includes accompaniment signals corresponding to an accompaniment signal of a song program, storing accompaniment data, and lyrics data corresponding to lyrics of a song program. A accompaniment signal generator for generating accompaniment signals corresponding to the accompaniment data stored in the accompaniment data storage unit, a lyrics signal generator for generating a lyrics signal based on the lyrics data stored in the lyrics data storage unit, and the accompaniment; And a control unit for controlling a signal generator and the lyrics signal generator, and decoding the encoded accompaniment data stored in the accompaniment data storage unit and providing the accompaniment signal generator. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a recording format of a conventional disc recording medium for an image song accompaniment apparatus, and has been filed by the present applicant with the patent application 93-417 (93.1.14 title; Disc recording medium for an image song accompaniment, and method and apparatus for reproducing the same). Is shown in

The program area of the disc recording medium shown in FIG. 3 is divided into five tracks. The first track 100a contains the index table having the index number and the leading address of the song program, and the second track 100b contains the image data index table having the index number and the leading address of the image data. The track program data is divided and recorded in track units in the track 100c, and the image data is divided and recorded in screen units in the fourth track 100d. The fifth track 100e is a portion in which warning data in a compact disc digital audio (CD-DA) format is stored.

FIG. 2 is a diagram showing the data format of the music program data shown in FIG. In FIG. 2, the tune program header 200 has information about a header identification code, header size, body size, pointer 1, pointer 2, pointer 3, and total size. The body 210 is largely composed of accompaniment data 210a, lyrics data 210b, and image data order table 210c. These data 210a, 210b, and 210c are prepared according to the MIDI standard. Pointer 1 of the header 200 designates an initial address of the lyrics data 210b, and pointer 2 designates an initial address of the image data order table 200c. Specify. Pointer 3 designates the initial address of the taylor 220.

Accompaniment of accompaniment data, lyrics data, and image order data is performed by control data embedded in the accompaniment data.

3 is a diagram showing the data format of the accompaniment data shown in FIG. In FIG. 3, reference numeral 300 denotes a MIDI data portion and 310 denotes a control data portion. The midi data 300 includes a data type block 300a, a timing block 300b, and a plurality of sound data blocks 300c to 300n.

The control data 310 is composed of a data type block 310a and a subsequent control flag 310b.

Included in the control flag 310b is a display flag for indicating the display of a single word on the screen, an erasing flag for instructing the deletion of a single word displayed on the screen, and lyrics for showing the progress of the lyrics. Is a color conversion flag for instructing color conversion sequentially.

MIDI data and control data are distinguished by data type blocks. MIDI data can be easily read because it conforms to internationally recognized standards, but since control data is specified by the manufacturer, it is difficult to read easily, and it takes a lot of time and money to prepare.

4 is a block diagram showing a conventional accompaniment data generator. In FIG. 4, reference numeral 40 denotes a first memory for storing MIDI data generated by a MIDI instrument or the like that generates MIDI data, 42 denotes a second memory for storing lyrics data, and 44 denotes a first memory 40 in FIG. The accompaniment data generator generates accompaniment data in which control data for synchronizing with the lyrics data is inserted into the output MIDI data.

Accompaniment data and lyrics data generated by the accompaniment data generating unit 44 are provided in a recording unit not shown, and recorded on the disc recording medium shown in FIG. 1 by the data format shown in FIG.

The disc recording medium can read the recorded contents recorded by an appropriate reading device, and thus accompaniment data generated by the apparatus shown in FIG. 4 and recorded on the disc recording medium can be copied and used.

5 is a block diagram showing an accompaniment data generator according to the present invention. In the apparatus shown in FIG. 5, reference numeral 50 denotes a first memory for storing MIDI data generated by a MIDI instrument or the like, 52 denotes a second memory for storing lyrics data, and 54 denotes an output from the first memory 50. Accompaniment data generation unit for generating accompaniment data into which the control data for synchronizing with the lyrics data is inserted into the MIDI data, and 56 is an accompaniment data generated by the accompaniment data generation unit 54 by a predetermined conversion table. Accompaniment data converter for converting and outputting. The converted accompaniment data output from the accompaniment data converting device 56 and the lyrics data output from the second memory 52 are provided in a not shown recording unit and are shown in FIG. 2 by the data format shown in FIG. It is recorded on the disc recording medium.

In the apparatus shown in FIG. 5, the accompaniment data converting unit performs a converting operation using a lookup table or a Hoffman encoding method. MIDI standard data can be divided into bytes, so conversion is very easy. For example, simply changing an arbitrary bit in MIDI data in bytes can be easily converted. More complicatedly, you can use a lookup table that contains translation information about all possible MIDI data that can occur.

The conversion method using the lookup table is similar to the Huffman coding method. According to the Hoffman coding method, probability information of all possible MIDI data is examined, and entropy coding is performed so that data having a higher probability has a lower number of bits. According to the Hoffman coding method, an additional advantage of reducing the bit rate of accompaniment data can be obtained.

The conversion using the lookup table or the Huffman coding scheme is well known to those skilled in the art, and thus, detailed description thereof will be omitted.

FIG. 6A is a diagram illustrating the operation of the accompaniment data converter shown in FIG.

In FIG. 6A, the conversion table 60 is a conversion table created by a lookup table or Hoffman encoding method.

7 is a block diagram showing a video song accompaniment device according to the present invention. In the apparatus shown in FIG. 7, reference numeral 70 denotes an accompaniment data memory for storing accompaniment data of a plurality of musical instruments according to a MIDI standard, 72 is a lyrics data memory, and 74 is a bit map font. Is a video memory for converting and storing it as a video signal, and 76 is a font ROM which stores a bitmap font corresponding to lyrics data.

Reference numeral 78 denotes a background image generator for generating a background image, and 80 denotes a first image signal representing a lyrics signal generated from the video memory 76 and a second image signal generated from the background image generator 78. To be output to the monitor 82. The background image generator 78 generates a background image with reference to the image data order table 210c shown in FIG. 2 and the image data track 100d shown in FIG.

Reference numeral 84 denotes an accompaniment signal generator that generates accompaniment signals based on accompaniment data of each instrument, and 86 denotes accompaniment signals generated by the accompaniment signal generator 84 and voice signals of singers introduced through the microphone 88. A voice synthesizer which synthesizes and outputs the speaker 90.

Reference numeral 92 is a control unit that reads and provides accompaniment data stored in the accompaniment data storage unit 70 to the accompaniment signal generator 84 and controls the lyrics data storage unit 72 and the video memory 74 to control the lyrics. Control unit for controlling the display operation.

The control unit 82 has a conversion table 82a shown in FIG. 6B.

6B is a diagram showing an inverse conversion operation of the control unit 92. In FIG. 6B, the inverse transform table 92a should have an inverse relationship with the transform table 62 shown in FIG.

8 is a flowchart showing an operation of processing accompaniment data by the controller shown in FIG. First, the controller 82 first reads accompaniment data stored in the accompaniment data storage unit 70 to generate an accompaniment signal or display lyrics characters.

Check if the read data is converted data. In operation 810, the original accompaniment data is restored using the inverse transformation table.

Check whether the data is MIDI (step 830).

If it is not MIDI data, it checks whether it is control data (step 840). If it is not control data, it performs an operation corresponding to the specified content (step 850).

If the control data, the lyrics data memory 72 and the video memory 74 is controlled to perform the lyrics display control operation (step 860).

If it is the MIDI data in step 830, it is transmitted to the accompaniment signal generator (step 870).

The accompaniment signal generator 840 generates an accompaniment signal by the transmitted data.

In the disclosed embodiment of the present invention, the control unit has one inverse conversion table. However, when the accompaniment data generator uses various conversion tables, the control unit is configured to have a plurality of inverse conversion tables.

The accompaniment data generation unit adds an identification code to the converted data, and the control unit recognizes the type of the conversion table used by the identification code and uses an inverse conversion table corresponding thereto. In this regard, since it can be easily implemented, a detailed description thereof will be omitted.

In addition, in the embodiment of the present invention has been described an example applied to the case of accompaniment data having the MIDI data and the control data, it should be noted that the same can be applied to not only accompaniment data but also housework data or image data.

As described above, the accompaniment data generating apparatus according to the present invention has an effect of safely preserving the accompaniment data generated by converting the MIDI data and the control data by the conversion table.

Claims (2)

A first memory for storing MIDI data corresponding to an accompaniment signal of a song program, a 42nd memory for storing a song data corresponding to lyrics, and a MIDI data output from the first memory; Accompaniment data that generates accompaniment data consisting of (MIDI data + lyrics display control data) by inserting lyrics display control data to synchronize the lyrics data between the imported MIDI data with reference to the lyrics data stored in the And an accompaniment data converter for encoding the accompaniment data generated by the accompaniment data generator and outputting encoded accompaniment data. Accompaniment data storage section corresponding to the accompaniment signal of the song program and storing encoded accompaniment data, lyrics data storage section to store lyrics data corresponding to the lyrics of the song program, and accompaniment data stored in the accompaniment data storage section. An accompaniment signal generator for generating accompaniment signals, a lyrics signal generator for generating lyrics signals based on the lyrics data stored in the lyrics data storage section, and the accompaniment signal generator and the lyrics signal generator for controlling the accompaniment data; And a control unit for decoding the encoded accompaniment data stored in the unit and providing the accompaniment signal generator to the accompaniment signal generator.