KR0144939B1 - Image and sound accompaniment device having a printing function of musical note - Google Patents

Abstract

Disclosed is a video song accompaniment device for printing out sheet music.

According to an embodiment of the present invention, a video song device includes: a controller extracting pitch and sound length data from an accompaniment signal and outputting the pitch data; And a print output unit for outputting the sheet music to the wrong paper by introducing the pitch and the sound length data output from the controller.

The video song accompaniment apparatus according to the present invention has the advantage that the music score can be serviced immediately by extracting the pitch data and the sound length data from the accompaniment signal and outputting them through the printing apparatus.

Description

Video song accompaniment with sheet music output

1 is a block diagram showing an image song accompaniment device according to the present invention.

2 shows the data format of channel messages in a MIDI signal.

3 is a diagram showing accompaniment data stored in the accompaniment data memory shown in FIG.

The present invention relates to an image song accompaniment apparatus, and more particularly, to an image song accompaniment apparatus which prints out sheet music.

A video song accompaniment device, also known as a karaoke appratus, displays a song lyrics on a video display device together with a song accompaniment signal so that a user can enjoy a song according to the song accompaniment signal while viewing the displayed song lyrics.

Recently, a video song accompaniment apparatus using a compact disc, a semiconductor memory, or the like, which records digital accompaniment data, has been increasingly used in place of an image song accompaniment apparatus using a laser disc or the like that has recorded and recorded an analog accompaniment signal.

MIDI digital music data is used as the digital accompaniment data. The video song accompaniment apparatus can be used not only as a song accompaniment apparatus but also as an apparatus for accompaniment practice.

Although the video song accompaniment device can enjoy singing in accompaniment with the accompaniment signal, it is difficult to sing along with the pitch and beat of the song because the accompaniment is to transmit the melody aurally.

In order to sing a song correctly, a sheet music is required, which is inconvenient in that a separate song book or sheet music must be provided.

Accordingly, an object of the present invention is to provide an image song accompaniment apparatus capable of extracting pitch and beat data from an accompaniment signal and outputting the printed data.

The video song device of the present invention to achieve the above object

Accompaniment information storage unit for accompaniment information according to the MIDI (Musical Instrument Digital Interface) standard, lyrics information storage unit for storing lyrics information, accompaniment signal generator for generating accompaniment signals based on accompaniment information, based on lyrics information In the video song accompaniment apparatus comprising a lyrics signal generator for generating a video signal, and a control unit for controlling the operation of generating the lyrics signal in conjunction with the reproduction of the accompaniment signal,

The controller extracts and outputs pitch and sound length data using the accompaniment signal,

It is characterized in that it further comprises a print output unit for outputting the sheet music to the wrong paper by introducing the pitch and sound length data output from the control unit. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an image song accompaniment apparatus according to the present invention. In the apparatus shown in FIG. 1, reference numeral 10 is an accompaniment information memory for storing accompaniment information for a plurality of musical instruments, 12 is lyrics information memory, and 14 is lyrics information having a bit map font. A video memory for converting and storing a video signal, and 16 is a font ROM for storing bitmap fonts corresponding to lyrics information.

Reference numeral 18 denotes a background image generator for generating a background image, and 20 denotes a first image signal representing a lyrics signal generated in the video memory 16 and a second image signal generated in the background image generator 18. To be output to the monitor 22.

Reference numeral 24 denotes an accompaniment signal generator for generating accompaniment signals based on accompaniment information of each instrument, and reference numeral 26 denotes an accompaniment signal generated by the accompaniment signal generator 24 and a voice signal of a mantissa introduced through the microphone 28. A voice synthesizer which synthesizes and outputs the speaker 30.

Reference numeral 32 is a control unit that reads accompaniment information stored in the accompaniment information storage unit 10 and stores the accompaniment information in the accompaniment signal generator 24. The lyrics information storage unit 12 and the video memory 14 are controlled to control the lyrics information. Is displayed and pitch and sound length data are generated from the accompaniment information and output to the print output unit 36.

Reference numeral 34 denotes a command input unit for specifying a song program selection, reservation, playback, print output function, and the like.

The print output section 36 includes pitch control and sound length data generated by the control section, and displays them as scores on the staircase.

Accompaniment information stored in the accompaniment information storage unit 10 is composed of MIDI data, and the format of the MIDI data is shown in Table 1 below.

The MIDI signal consists of a status byte of one byte and data bytes of at least one byte. The MIDI signal is divided into channel message and system message according to the status bias. The channel message is divided into voice message and mode message, and the system message is divided into exclusive message, common message, and real-time message. The channel message indicates which musical instrument (channel) causes the sound to be produced or stopped at a certain pitch and to what extent the intensity as shown in FIG.

FIG. 2 shows the data format of channel messages among the media data. In FIG. 2, the channel message 200 shows note on / off data 200a. Channel data 200b, note number data 200c, and velocity data 200c.

The note on / off data 200a is a 4-bit signal that controls turning on or off a specific sound of a musical instrument specified by the channel data and note number data shown later.

The channel data 200b is 4-bit data for determining the type of musical instrument. The channel data 200b determines the musical sound generated by the accompaniment signal generator 24. Since it is a 4-bit signal, you can specify up to 16 instruments.

The note-on data 200c indicates the pitch of the musical instrument specified by the channel data 200b, and the velocity data 200d determines at what intensity the specified pitch should be generated.

3 is a diagram showing accompaniment data stored in the accompaniment data memory of FIG. In Fig. 3, reference numeral 40 denotes a start message indicating the start of the accompaniment, 42 denotes a system clock, and 44 denotes a note on message.

The system clock 42 is a byte signal having "F8" in hexadecimal as shown in Table 1. System clocks appear periodically, which is indicated by meta events, not channel messages or system messages. The meta event starts with a hexadecimal byte of "FF" byte signal and the tick time of the system clock is expressed in microseconds.

The controller 32 recognizes that a pitch is started by the note-on signal among accompaniment data, and counts the number of system clocks until a note-off signal indicating release of the pitch is generated to recognize the duration of the pitch. do.

The result recognized by the control unit 32 is converted into pitch data and tone length data and output.

The print control unit 36a of the print output unit 36 receives the pitch data and the sound length data generated by the control unit 32 and generates a print control signal corresponding thereto. The print unit 36b receives the print control signal generated by the print control unit 36a and in response thereto, outputs the sheet music printed on the stave.

As described above, the image song accompaniment apparatus according to the present invention has the advantage that the music score can be serviced immediately by extracting the pitch data and the sound length data from the accompaniment signal and outputting them through the printing apparatus.

Claims (1)

Accompaniment information storage unit for accompaniment information according to MIDI standards, lyrics information storage unit for storing lyrics information, accompaniment signal generator for generating accompaniment signals based on accompaniment information, lyrics signal generation for generating video signals based on lyrics information And a control unit for controlling an operation of generating a lyrics signal together with reproduction of the accompaniment signal, wherein the control unit extracts and outputs pitch and sound length data from the accompaniment signal. And a frit output unit for outputting musical scores to the wrong paper by introducing the output pitch and sound length data.