KR101243199B1 - Lyrics displaying method in karaoke apparatus - Google Patents

Abstract

A method for displaying scores in a song accompaniment device, which displays scores of playing songs necessary for practicing a song or playing on a musical instrument, and causes subsequent scores to be changed user-friendly to the displayed scores as the performance proceeds.
By using the score display method of the present invention, there is an advantage in that a plurality of scores can be displayed in the song accompaniment device and the user can intuitively understand the score.

Description

How to display scores in song accompaniment devices {LYRICS DISPLAYING METHOD IN KARAOKE APPARATUS}

The present invention relates to a method of displaying sheet music displayed on a song accompaniment device, specifically, to display a sheet music of a playing song necessary for practicing a song or playing a musical instrument, and as the performance proceeds, the sheet music is displayed. A method of displaying sheet music in a song accompaniment device, to be changed in a user-friendly manner.

Song accompaniment devices are used for various purposes. The song accompaniment device allows the user to select a song in a karaoke, play the selected song, and display the lyrics according to the performance so that the user can sing.

The song accompaniment device may also be used in a karaoke room to allow the user to practice a particular song.

On the other hand, the song accompaniment apparatus may display a sheet music using a MIDI file of a specific song included in the song accompaniment apparatus, and a musician, a musical instrument player, or the like may play the musical instrument using the same.

The song accompaniment device is mainly used for various purposes. However, the existing song accompaniment device has various problems in the practice of singing and the performance of musical instruments.

First of all, in order for a user to practice a particular song, not only the lyrics but also the score or musical score are required. The display of the scale allows the user to know the pitch of the note, and the display of the lyrics allows the user to sing along the lyrics.

The user will practice watching the lyrics and the score displayed by the song accompaniment device and listening to the music output from the song accompaniment device.The user should visually recognize the display of the lyrics and the score displayed separately at the same time on the screen. There is a problem that you cannot practice singing.

The sheet music display method of the existing song accompaniment device is registered Patent Publication (B1) 10-0543892 (January 23, 2006, Republic of Korea Patent Office) or Patent Publication (A) 10-2004-0024315 (2004) It is disclosed on March 20, 2011, the Korean Intellectual Property Office).

In addition, even if the existing song accompaniment device provides a score display function, one screen is divided into two screens, the upper side and the lower side, and the song portion currently being played on the upper side and the lower side of the lower side. The score for the score and the portion of the song after the currently playing piece are displayed, and the score is displayed sequentially up and down as the piece being played progresses.

This method cannot display a plurality of musical instruments first, and thus it is insufficient to play a plurality of musical instruments (piano, drums, etc.) from the score of the song accompaniment apparatus.

In addition, this method distinguishes the sheet music up and down, and it is inconvenient for the player who views and plays the sheet music to visually move from the upper side to the lower side and the lower side to the upper side.

There is a need for a score display method in which the music accompaniment device displays the score or lyrics in a new way to solve the existing inconvenience in practicing the song or playing the musical instrument.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and provides a method for displaying scores in a song accompaniment device that enables a user to intuitively understand lyrics and scale in a song practice using a song accompaniment device. There is a purpose.

In another aspect, the present invention provides a method for displaying scores in a song accompaniment device to display a plurality of music scores for a plurality of instruments on the screen so that a plurality of musical instrument players can easily play using the scores of the song accompaniment device The purpose is.

In addition, the present invention, unlike the existing display method, the display method of the sheet music, as the performance is progressed on one sheet music display sequentially displays the next sheet music in conjunction with the currently displayed sheet music, the player can easily play An object of the present invention is to provide a method for displaying a score in a song accompaniment device, which provides an intuitive method for displaying a score.

In the song accompaniment apparatus for achieving the above object, the score display method includes displaying a first score of a song to be played and displaying a progress cursor moving in synchronization with the progress of the song to be played; The displaying of the first score comprises displaying one or more notes corresponding to the first portion of the song being played and the notes of some of the second portions following the first portion of the song being played, in the first score, And displaying at the previous position of the progress cursor.

In addition, the sheet music display method in the song accompaniment apparatus for achieving the above object, further comprising the step of displaying a second sheet music different from the first sheet music, synchronized to the display of the first sheet music, and displays the second sheet music The step of displaying comprises: displaying one or more notes corresponding to the first portion of the song to be played and the notes of some of the second portions following the first portion in the song to be played, in the second score, the transfer of the progress cursor. Displaying at the position of the.

The score display method in the song accompaniment device according to the present invention has an advantage of allowing the user to intuitively understand the lyrics and the scale in the song practice using the song accompaniment device.

In addition, the score display method in the song accompaniment apparatus according to the present invention, by displaying a plurality of musical scores for a plurality of instruments on the screen so that a number of musical instrument players can easily play using the score of the song accompaniment apparatus There is an advantage.

In addition, in the song accompaniment apparatus according to the present invention as described above, unlike the conventional display method, the display method of the score, as the performance is progressed on a single score display, the next sheet music to be processed in conjunction with the currently displayed sheet music By displaying sequentially, there is an advantage to provide an intuitive sheet music display method that the player can easily play.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram showing a song accompaniment device to which the present score display method is applied.
2 is a diagram showing a flowchart for displaying music scores in the song accompaniment apparatus.
FIG. 3 is a diagram showing a music score display structure using a lyrics file that can be stored on a hard disk and a MIDI file.
Fig. 4 is a diagram showing a snapshot of the sheet music displayed on the display device using the score display method according to the present invention.

The above objects, features, and advantages will become more apparent from the detailed description given hereinafter with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may share the technical idea of the present invention. It will be easy to implement. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a song accompaniment device to which the present score display method is applied.

According to FIG. 1, the song accompaniment apparatus may include a memory 100, a hard disk 200, an audio synthesizer 300, a video synthesizer 400, a user input unit 500, a timer 600, and a controller 700. , And system bus / control bus 800. Some of the blocks may be omitted according to the implementation, or blocks not included in FIG. 1 may be further included in the song accompaniment apparatus.

First, let's take a closer look at each block of the song accompaniment device.

The hard disk 200 includes data and various programs to be used in the song accompaniment device.

The data includes one or more MIDI files and lyrics files corresponding to each MIDI file. The data also includes font images and video files. Such a MIDI file and a lyrics file corresponding to the MIDI file are used to play the song selected by the user, and as the selected song is played, it is used to display the lyrics image generated by the font image.

In addition, the video file may be a file in a compressed format, for example, a file in a format such as MPEG2, MPEG4, H.264 / AVI, and the like. The video file may be displayed as a background image.

The program stored in the hard disk 200 performs a function required by the song accompaniment device and controls the song accompaniment device. Such a program may be loaded into the memory 100 to control each block of the song accompaniment apparatus by the controller 700.

For example, a program for decoding a video file in a compressed format, receiving a selection of songs from a user, finding MIDI files and lyrics files corresponding to the selected songs, playing the songs using the MIDI files, There may be a program for playing a song to generate and display lyrics images and sheet music images in synchronization with the music being played.

The memory 100 includes a volatile memory and / or a nonvolatile memory. The memory 100 may store a booting program, and may temporarily store various programs and various data stored in the hard disk 200.

In addition, the memory 100 may store one or more image frames. Such one or more image frames may include, for example, a movie image frame decoded from a compressed movie file, a score image frame for displaying sheet music and lyrics.

The score image frame and the moving image image frame may have a priority when displayed, and for example, the controller 700 may set the priority level so that the score image frame is displayed on the moving image frame.

The audio synthesizing unit 300 receives digital music data through the system bus / control bus 800, generates an analog music signal that can be heard by the user from the received digital music data, and an amplifier connected to an external song accommodating device. Passes analog music signals.

Of course, when the interface of the amplifier connected to the external rather than the analog music signal uses the digital music signal, it can be converted to the digital music signal according to the format of the amplifier and output.

The audio synthesizing unit 300 may be a MIDI synthesizer configured as a separate board or a separate chip. This MIDI synthesizer has an interface such as UART, and can receive digital music data as a standardized MIDI command via a standardized baud rate (eg 32kbps, 64kbps, etc.).

This MIDI command allows you to specify which instruments (eg melodies, piano, drums, etc.) you can play on the MIDI synthesizer at a particular point in time of the song, and let you know the height and / or length of the notes in that instrument. To be specified.

Here, depending on the MIDI command received via this interface, the MIDI synthesizer immediately parses the MIDI command and, depending on the content of the MIDI command, generates a music signal of a certain note height and / or note length for that instrument. You can output

The video synthesis unit 400 synthesizes one or more image frames to generate and output a video signal that can be used in a display device (eg, an LCD TV) connected to the song accompaniment device.

The video signal may be an analog video signal or a digital video signal. For example, the video signal may be an HDMI, a composite signal, or an S-Video signal in which Y, C signals are separated.

Here, the one or more image frames may include a lyrics image frame stored in the memory 100 and dynamically changed as the song is played, and in addition, the image image frame decoded from the video compressed file.

The user input unit 500 receives a user command from the user.

The user input unit 500 may include one or more buttons and / or a remote controller receiver to receive a desired song number.

The user command may include, for example, a selection command including a song number, a start command of a selected song, a stop command to stop a currently playing song, and the like.

The timer 600 makes it possible to know the current playing progress point of the song to be played when playing the selected song. The timer 600 may be configured using an oscillator included in the song accompaniment device.

For example, the timer 600 may progress in units of seconds or units of 1/10 seconds. Alternatively, the audio synthesis unit 300 may proceed in time units that can be known from the baud rate of the interface.

Accordingly, the timer 600 is initialized when the playing of the selected song starts, and the timer 600 advances as the selected song progresses, using the value of the corresponding timer 600, and then, Allows you to extract the lyrics data to be displayed and the MIDI data to be played next from the lyrics file and from the MIDI file.

In addition, the timer 600 may determine a time when the song performance program transmits the MIDI command determined from the MIDI file to the audio synthesizer 300.

The timer 600 does not necessarily need to use hardware logic such as a counter, but may also be configured as a program stored in the memory 100 or the hard disk 200 using the oscillator of the song accompaniment device.

The controller 700 controls each block of the song accompaniment device.

The controller 700 may be configured of one chipset, which may be referred to as a processor, a CPU, a MICOM, and the like, and the controller 700 may be installed in the memory 100 and / or the hard disk 200. Other blocks can be controlled by loading and executing various stored programs.

When the control unit 700 is composed of one chipset, other blocks of the song accompaniment device may be integrated into the chipset. For example, video synthesizer 400, audio synthesizer 300, and / or memory 100 may be integrated within this chipset.

The controller 700 performs various functions requested by the karaoke user by using the loaded program.

For example, the controller 700 reads a user command received through the user input unit 500 and controls each block according to the user command.

If the user command is a performance start command, the song number corresponding to the performance start command is extracted from the performance song reservation list or input from the user to search for the lyrics file and the MIDI file corresponding to the song number from the hard disk 200. do.

When the search is made, the control unit 700 loads the lyrics file and the MIDI file into the memory 100, selects a portion to be displayed on the screen from the lyrics file, and selects the lyrics image using the font image for the selected portion. A decoding process is performed using a video file to be generated and also used as a background image.

The timer 600 is initialized, and while the timer 600 is advanced, MIDI commands and score images are sequentially generated from the MIDI file, so that the generated score image is displayed through the video synthesizer 400 together with the lyrics image. After determining the time at which the corresponding MIDI command should be played using the timer 600, the MIDI command may be transmitted to the audio synthesis unit 300 at the determined time.

In addition, as the timer 600 progresses, the controller 700 determines the lyrics image and the music image to be displayed next from the lyrics file and the MIDI file. A part of the lyrics image and the score image to be displayed next may be configured to alternately display some of the currently displayed lyrics image and the score image.

A method of displaying sheet music and / or lyrics may be described in detail with reference to FIGS. 2 through 4.

The system bus / control bus 800 connects each block of the song accompaniment device.

The system bus / control bus 800 may be, for example, a PCI bus, an ISA bus, a USB bus, etc. for connecting each block within one board, or for connecting within one chipset, for example. It may be an AMBA bus or the like.

The system bus / control bus 800 may further include a serial bus, such as UART, SPI, I2C, etc., for transmitting and receiving data and / or control commands between blocks.

Although the system bus / control bus 800 is illustrated in FIG. 1 as being connected between all blocks, the present invention is not limited thereto. For example, a serial bus is connected one-to-one between the controller 700 and the audio synthesizer 300. It may include.

2 is a diagram showing a flowchart for displaying music scores in the song accompaniment apparatus.

The flowchart of FIG. 2 may be executed in the form of a program by the control unit 700, and may receive a start command of a selected song from a user or automatically select and start a specific song by the control unit 700 (S100). ).

In step S110, the song number of the selected song is identified, and among the lyrics files and MIDI files stored in the hard disk 200 using the identified song number, a corresponding lyrics file and a MIDI file are determined, and the determined lyrics The file and the MIDI file are loaded into the memory 100.

The lyrics file and MIDI file corresponding to the identified song number may use, for example, a mapping table for storing the file name of the lyrics file and MIDI file corresponding to the song number and song number, or in addition, a directory location, or the song number. Can be determined using a file name that can be determined from the song number at a predetermined directory location (e.g., the song number is a file name, a distinction between MIDI and lyrics files by extension, etc.).

In operation S120, the number of music scores to be displayed on the screen of the display device is determined from the loaded MIDI file.

The determination of the number of sheet music may be determined in advance by the controller 700 or by the number input from the user.

Here, the MIDI file includes a plurality of tracks, such as 32 or 64 tracks. Each track can be mapped to a specific instrument. Therefore, the sheet music can be expressed for each instrument in the MIDI file.

One of the plurality of tracks may be a track representing the melody of the lyrics.

Thus, the first track can be data representing the height of the note and the length of the note for the melody of the lyrics, the second track can represent the height of the note and the length of the note for the piano, and the nth track can be written to the drum. Data representing the length of the sound.

In addition, in step S120 or subsequent to step S120, a music score selection for a specific instrument may be further received.

For example, a melody and piano sheet music may be selected from the user or automatically, thus allowing selection of sheet music for one or more musical instruments.

In step S130, the number of nodes of the first portion to be displayed on the screen or in addition to the subsequent second portion is determined from one or more tracks corresponding to the selected musical instrument (s). The display of these nodes may be output and displayed on the screen.

Here, the first part is a part of the MIDI file which should be played first before the second part, and indicates a part of the sheet music indicated by the progress cursor displayed in synchronization with the played song, and the second part immediately follows the first part. A part of the score is shown.

The first part and the second part become the units displayed on the screen, and therefore, a progress cursor indicating the playing position of the song to be played with respect to the notes or lyrics of the first part after the first part is displayed on the score. While is moving, the second part is subsequently displayed on the sheet music in the screen portion from the beginning (left end on the screen) to the progress cursor on the sheet music.

Accordingly, it is possible to provide a natural sheet music display method without displaying the second portion following the first portion separately as a separate sheet music, or after displaying the second portion again after the first portion has been played. Compared to the method, more space on the screen is provided so that the scores for a number of musical instruments can be displayed.

The determination of the number of nodes of the second part here is not necessarily made at the same time point as the first part, but may be made at any subsequent step, taking into account the movement position of the progress cursor relative to the first part (eg Step S143 from the previous step).

In order to determine the number of nodes of the first part or the second part, the number of notes in the plurality of tracks (instruments) to be selected and displayed is considered. For example, when there are three tracks to be displayed as scores from a MIDI file, each track may include a different number of notes for each node. Accordingly, the number of nodes can be determined in consideration of the size of the screen on which the score is displayed and in consideration of the number of notes included in each measure.

For example, if the song to be played contains a measure of 4/4 beats, the first measure of the first track has eight eighth notes, but the corresponding identical first of the second and third tracks. If each node has a whole note, the second second node following the first node of the first track and the third track has the whole note, and the corresponding second node of the second track has four quarter notes, When the size of the image that can be determined from the number of notes of the first measure of one track and the size of the image that can be determined from the notes included in the second measure of the second track are displayed on the screen, other tracks of the same measure are displayed. Since it occupies the largest display space compared to the above, the number of nodes can be determined in consideration of the size of these two nodes.

Accordingly, the size of the first node of the first, second, and third tracks may be determined by the first node of the first track, and the size of the second node of the first, second, and third tracks may be determined. It can be determined by the size of the second node of the second track.

In this example, the sum of the size of the first node of the first track and the size of the second node of the second track (eg, 700 pixels) is smaller than the area on the screen where the score is located (eg, 800 pixels), but the third node In the case of adding (eg, 900 pixels), the number of nodes can be determined to be larger than the area where the score is located on the screen.

Of course, the number of nodes for the portion following the portion where the number of nodes is determined may be different from the previous portion in consideration of the notes in the track for the subsequent portion, for example, the first portion has a number of nodes 2 Even if the number of nodes of the second portion subsequent to the first portion may be 3 or 4.

Here, the measure refers to the smallest unit of a piece of music divided by vertical lines in the score, for example, when a song being played is 4/4 beats, four quarter notes are included in one word.

The controller 700 may initialize the timer 600 in one of steps S110 to S130. This timer 600 is then configured to increment as the song starts playing and progresses.

Following step S130, the determined first portion of the scores for the one or more tracks corresponding to the musical instrument (s) selected in step S140 is displayed according to the number of nodes.

Accordingly, a note of the first part of the sheet music corresponding to a specific musical instrument (eg, a lyrics melody), and a measure display capable of distinguishing the measure may be displayed.

In other words, in step S140, the note of the first portion of the sheet music corresponding to the specific musical instrument (for example, the lyrics melody) and the node display for distinguishing the nodes are displayed. The notes of the first part are determined according to the number of nodes of the first part determined in step S130 in the track of the particular instrument from the MIDI file.

The note here may be determined from the length of the sound and the height data on the track of the MIDI file.

In addition, in step S140, not only the note image but also a scale indicating the height of the lyrics data and the notes may be further displayed.

Here, the lyrics data is data extracted from the lyrics file corresponding to the first portion, and the displayed scale is, for example, a character or symbol known to the user such as "Doremipasolashido" or the like.

The lyrics data and scale can also be displayed on the head of the note.

Accordingly, the player or the user can easily know the height of the lyrics using the lyrics data or scale displayed on the head of the note, and intuitively know what the notes are from the scale displayed on the head of the note. do.

Subsequent to step S140, the second part subsequent to the first part is replaced with a part of the first part (S150) to display the second part, and the progress cursor indicating the current playing time point on the score is performed as the performance proceeds. In step S160, the display is sequentially performed.

Here, steps S150 and S160 are shown in a format performed independently in a separate flow for understanding in the flowchart of FIG. 2, but this is for understanding, and steps S150 and S160 are not only performed in parallel, According to the control of the control unit 700 may be performed sequentially in a predetermined order or in the order by scheduling.

First, in step S160, the progress cursor is first displayed at the initial position (S161). This progress cursor is a cursor that displays the progress of music of the song currently being played on the displayed score. The initial position will generally be at the left end on the displayed score.

The progress cursor indicates the progress position (time) in the first part.

In step S162, the progress cursor is sequentially moved as the song is played. The movement of the progress cursor may be configured using the timer 600.

For example, since the first portion currently displayed is a portion within a predetermined range of the values output by the timer 600, as the timer 600 sequentially increases, the first portion displayed from the current value of the timer 600 is displayed. The progress cursor can be displayed at the corresponding position of one part.

Also, in step S162, as the progress cursor is moved, the notes, lyrics, and / or scales where the progress cursor is located cause the user to change the size of the music or the size of the head of the musical note by changing the size of the head of the music. The location can be easily determined.

In step S163, if the progress cursor reaches the end of the displayed sheet music, the process advances to step S161 to change the progress cursor back to the initial position, and if it does not reach the end, the process proceeds to step S162, where the progress cursor is moved. Can be moved sequentially.

Step S150 represents a score display step, which may be applied to tracks for one instrument or may be applied to different tracks for one or more instruments. For example, step S150 may be a process of displaying only the sheet music (first sheet music) representing the lyrics melody, or may be a process of further displaying other sheet music (piano, drum, etc.).

Therefore, it will be apparent that step S150 can display two or more scores simultaneously.

When the step of S150 is applied to one or more musical instruments, the musical instrument (or track) and the displayed position are different on the screen, and the display of the score and the movement of the progress cursor are synchronized with each other to proceed simultaneously.

First, for ease of explanation, the term virtual cursor is introduced here. The virtual cursor indicates where the portion of the second portion to be displayed subsequent to the first portion is to be displayed in place of the portion of the first portion. In this case, the second part sequentially replaces the first part by using a distance between the virtual cursor and the progress cursor.

In addition, the virtual cursor is not displayed on the screen, only the position of the virtual cursor is determined according to the calculation of the controller 700.

The distance between the virtual cursor and the progress cursor may be determined in various forms.

For example, this interval may be the difference of the position value of the virtual cursor in the position value of the progress cursor on the current display screen, or proceed from the future timer 600 value at which the portion where the virtual cursor for the second portion is located is to be played. It may be a difference value of the current timer 600 value of the cursor.

First, in step S151, the virtual cursor is located at an initial position, like the progress cursor in step S161.

In step S152, the distance between the progress cursor and the virtual cursor being performed in step S160 is compared.

If the distance between the progress cursor and the virtual cursor is less than a certain interval, the process returns to step S152 and waits to be equal to or greater than the constant interval. Otherwise, the process proceeds to step S153.

In addition, while the virtual cursor is moving, the transition from step S163 to step S161 may be set to the initial cursor. In other words, when the progress cursor is located at a position (left) subsequent to the screen than the virtual cursor, depending on the shape of the interval, step S152 may determine that a predetermined interval or more is maintained, and then proceed to step S153.

In step S153, the virtual cursor of the current position is positioned at a new position in the advancing direction of the virtual cursor (for example, from left to right on the screen) while maintaining a constant distance from the progress cursor.

Here, in the score between the current position and the new position, some notes (or, in addition, lyrics or scale) to be displayed between the corresponding positions in the second portion are displayed.

The constant interval may be determined in various forms. For example, such a constant interval may be an interval based on the size or length of a node indicated in the first part or the time of the node, or an interval based on the time or length of the node in the second part to be displayed. Can be.

In addition, such a constant interval may be a partly variable interval depending on the size or length of the node or the time of the node. It can also be a fixed size (eg 1/3 of sheet music) that can be predicted by circumstances or through experimentation.

In step S154, it is determined whether the virtual cursor has reached the end of the sheet music.

If the end has been reached, the current second portion is set as the first portion in step S155, and the flow advances to step S151.

On the other hand, in step S155, the nodes and the notes of the second part of the place to be played subsequent to the newly set first part can be determined from the MIDI file.

If not, the flow advances to step S152.

In this way, on the same single sheet music, the notes of the currently playing song for a specific instrument can be displayed in sequence according to the flow of the performance, and the notes are naturally changed so that the sheet music is conveniently handed over to the performer or the user. Allows you to provide an image.

Each step included in step S150 may be executed sequentially, for example, may be scheduled and executed at a predetermined period.

Of course, the flowchart of FIG. 2 may be terminated when the performance is stopped by the user or the control unit.

FIG. 3 is a diagram illustrating a music score display structure using a MIDI file and a MIDI file that can be stored on the hard disk 200 in order to more easily understand the flowchart of FIG. 2.

FIG. 3A illustrates a plurality of lyrics files and MIDI files stored on the hard disk 200.

These lyrics files and MIDI files each have a one-to-one correspondence, and according to the user's selection or automatically, one MIDI file and one lyrics file corresponding thereto are selected.

FIG. 3B is a diagram illustrating one MIDI file selected by a user and a lyrics file corresponding thereto.

As can be seen in FIG. 3 (b), the MIDI file includes one or more tracks, each track corresponding to one instrument or lyrics melody.

Of these tracks, the selected track is used to display on the display device.

Each track may be divided into nodes, and each node may include one or more notes.

Here, the controller 700 determines the first part to be played for the first time, and also determines the second part subsequent to the first part, in order to play the selected song.

This determination determines the number of nodes of the first part (or second part) and, accordingly, the number of notes contained in the nodes in the track to be displayed and the size of each note to be displayed on screen. Second part).

For example, using the sum of the measure size of the track that occupies the largest size in the first measure and the measure size of the track that occupies the largest size in the second measure, the sum is the size to display the score on the display device. The first portion (or the second portion) may be determined by determining the number of nodes with a size not exceeding.

Since the track to be displayed (instrument) can vary according to the user's selection, it is desirable that this determination of the number of measures be made to be dynamically determined as the song is played.

FIG. 3C is a diagram illustrating a composite image generated by combining the image of the first portion and the image of the second portion.

The image of the first portion and the image of the second portion may include one or more notes and an indication of the lyrics or scale that may be displayed on the head of the note.

In addition, the stairway image to be used in the score can be managed as a separate image, it is also possible to control such a composite image to be superimposed on the stairway image again.

This composite image is displayed on the screen of the display device, and this composite image is updated repeatedly as the music being played progresses.

As can be seen from (c) of FIG. 3, the first part represents a note (lyrics) associated with the progress cursor of the song being played, and the second part represents a note (lyrics) to be played after the first part is finished. Indicates. The second part is changed back to the first part after completion of the playing of the first part, and the dynamically determined third part as shown in FIG. 3B is changed back to the second part.

The progress cursor linked to the first part moves from left to right, for example, as the music progresses, and the virtual cursor linked to the second part maintains a constant distance from the progress cursor. You can move from left to right at a speed similar to.

As the virtual cursor is moved, it is possible to synthesize a note (lyrics) from the start position to the virtual cursor among the second portions to be displayed, and to synthesize the data of the first portion after the virtual cursor.

Here, the synthesized image of the second part may be synthesized as the progress cursor is sequentially moved, and the virtual cursor is also sequentially moved, so as to smoothly and constantly scroll.

Fig. 4 is a diagram showing a snapshot of the sheet music displayed on the display device using the score display method according to the present invention.

As the playing proceeds, the process proceeds sequentially from (a) of FIG. 4 to (b) of FIG. 4, to (c) of FIG. 4, and to (d) of FIG. 4.

4 is a view showing a snapshot of a specific time point on the time axis as the performance progresses, and thus, this view shows only a part of all image frames displayed on the time axis.

In FIG. 4, only the progress cursor is displayed to the user, and the virtual cursor is not displayed in actual display, but the virtual cursor is shown in FIG. 4 for understanding.

As can be seen in FIG. 4, a plurality of sheet music can be displayed on one screen, and each of these scores can represent a different instrument and can be generated from a MIDI file.

As shown in (a) of FIG. 4, the progress cursor indicates the progress time of the current music of the currently selected song, and the progress cursor moves from left to right as the song is played. The first part where the current song is played is displayed on the screen after the virtual cursor, and a part of the second part is displayed on the screen before the virtual cursor.

Accordingly, as the progress cursor moves, the virtual cursor also moves, and the virtual cursor moves smoothly at regular intervals from the progress cursor, so that the second part may also be smoothly drawn on the screen.

Of course, in the case of FIG. 4D when the progress cursor arrives at the last position, the maintained interval between the progress cursor and the virtual cursor may be partially changed.

And after (d) of FIG. 4, when the progress cursor moves to a new position (left end), such a constant interval on the screen may not necessarily be kept. In this case, the second portion may be displayed quickly so that the virtual cursor moves quickly without maintaining the moving cursor and the moving speed.

Alternatively, the virtual cursor may be displayed by moving the virtual cursor at a constant interval with respect to the progress cursor located at the new position.

For example, the progress cursor and the virtual cursor are determined as a timer value determined by the timer 600, which is constantly changing (e.g., the progress cursor is a timer value at the playing time currently played in the first part, and the virtual cursor is a second part. The timer value at the time of the play of the part where the current virtual cursor is located), and the difference in this timer value is maintained in a constant format, although the progress cursor and the virtual cursor are from left to right within the area of the screen, The position changes again from left to right, but the song accompaniment device is managed by a timer value so that a constant interval can be easily maintained.

Thus, as can be seen in Figure 4, the user or player plays while watching the progress cursor and sings. However, using the virtual cursor that is not displayed, the next sheet of music to be displayed next is smoothly displayed before the progress of the same sheet of music so that the user or the player does not forget the performance or lyrics as the screen transitions to display the new sheet music. The scores of the dogs can be displayed at the same time.

Such a score display method of the present invention not only displays the currently playing score and the score to be played at the same time on one screen, but also smoothly displays the score to be played sequentially in sequence as the performance progresses. By splitting the score on the screen based on the measure or tempo, the user can improve the readability of the score.

Such a score display method has a problem in that it is not possible to determine what is on the next page until the next page is normally turned on the score page (including the score display method in the existing song accompaniment device). With the axis as the axis, the next page can be smoothly turned over so that the score of the next page can be found in sequence with the current page's performance progress.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

100: memory 200: hard disk
300: audio synthesis unit 400: video synthesis unit
500: user input unit 600: timer
700: control unit 800: system bus / control bus

Claims (8)

Loading a MIDI file corresponding to the selected song;
Dynamically determining the number of nodes to be displayed from the first sheet music and the second sheet music determined from the loaded MIDI file, wherein the first sheet music corresponds to a first track of a plurality of tracks of the loaded MIDI file; Dynamically determining the number of nodes to be displayed, wherein the second sheet music is determined to correspond to a second track that is different from the first track and is an instrument selected by the user;
Extracting sheet music data corresponding to the determined number of nodes from each of the first sheet music and the second sheet music, and displaying extracted sheet music data of each of the first sheet music and the second sheet music; And
Displaying on the extracted sheet music data of each of the displayed first sheet music and the second sheet music, a progress cursor moving in synchronization with the playing progress of the selected song;
The determination of the number of bars to be displayed is performed on the basis of the comparison of the size of the nodes determined from the corresponding nodes to be played at the same playing time point in the first sheet music and the second sheet music, and the playing of the tune selected by the size of the screen to be displayed. Dynamically determined during the process,
How to display scores on song accompaniment devices. The method of claim 1,
The sheet music display method,
After displaying the progress cursor on the extracted sheet music data of each of the displayed first sheet music and the second sheet music, the sheet data of the selected piece of music following the extracted sheet music data is moved to the previous cursor. Displaying at the position of; further comprising,
Displaying the extracted sheet music data of each of the first sheet music and the second sheet music includes displaying one or more notes corresponding to the extracted sheet music data of each of the first sheet music and the second sheet music sheet; and ,
The displaying of the sheet music data in the selected piece of music following the extracted sheet music data at a position before the progress cursor may be sequentially repeated at a predetermined interval from the progress cursor.
How to display scores on song accompaniment devices. The method of claim 2,
The step of displaying one or more notes corresponding to the extracted sheet music data of each of the first sheet music and the second sheet music further includes displaying the lyrics corresponding to the extracted sheet music data on the head of the one or more notes. Included,
How to display scores on song accompaniment devices. The method of claim 2,
The displaying of the one or more notes corresponding to the extracted sheet music data of each of the first sheet music and the second sheet music may include displaying one or more notes of the one or more notes corresponding to the extracted sheet music data. Further comprising displaying on the
How to display scores on song accompaniment devices. delete delete The method of claim 2,
Displaying the extracted sheet music data of each of the first sheet music and the second sheet music further includes displaying a plurality of nodes distinguished according to the beats of the selected piece of music,
The number of nodes in the extracted sheet music data and the number of nodes in sheet music data extracted subsequent to the extracted sheet music data are the number of nodes dynamically determined with respect to the extracted sheet music data and the extracted sheet music data. Which can vary according to,
How to display scores on song accompaniment devices. The method of claim 7, wherein
The displaying of the sheet music data in the selected piece of music following the extracted sheet music data at a position before the progress cursor may be sequentially repeated at regular intervals based on the size of the progress cursor and the node.
How to display scores on song accompaniment devices.

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