JP3465585B2 - Karaoke lyrics display device and karaoke lyrics display method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke lyric display device and a karaoke lyric display method for indicating singing timing while partially changing the display mode of the lyrics displayed on the screen.

[0002]

2. Description of the Related Art Conventionally, many karaoke devices for displaying lyrics on a screen have been proposed. And in this kind of technology, lyrics consisting of multiple characters are displayed at once,
There is one that indicates the singing timing while partially changing the display mode of the lyrics according to the progress of the song. For example, Japanese Patent Laid-Open No. 2-242294 and Japanese Patent Laid-Open No. 2-185159 disclose a technique of notifying a singer of a pronunciation timing by changing a display color of a part of characters in displayed lyrics. ing. According to these techniques, a trigger signal is mixed in the music data, and every time the trigger signal is read out along with the reproduction of the music data, a part of the display color of the pixels forming the character is sequentially changed. . In this case, in order to change the display color, each pixel is subjected to a graphic process of changing the color code.

[0003]

However, in the above-mentioned prior art, there is a problem in that it is necessary to perform graphic calculation processing in pixel units, which imposes a heavy load on the control portion for displaying lyrics. That is, in order to specify the position to be changed and change the color code of the pixel, a complicated operation is required. Further, in the above-mentioned conventional technique, since only the color of the displayed characters is changed, there is a problem that the display change mode is fixed and there is no degree of freedom.

The present invention has been made in order to solve the above-mentioned problems, and has a high degree of freedom in changing the display.
An object of the present invention is to provide a karaoke lyrics display device and a karaoke lyrics display method for partially changing the display mode of lyrics displayed on the screen without imposing a load on the control portion.

[0005]

In order to solve the above problems, the invention according to claim 1 sings a song while partially changing the display mode of the lyrics displayed on the screen according to the progress of the music. In the karaoke lyrics display device showing the timing, the display character font name, the display character color, and the changed character font are displayed.
Lyrics information including name, changed character color and character code
And the position where the display mode of the lyrics should be changed per unit time
And the changed position information indicated by the decimal point character unit in and
In front of the storage means and the lyrics specified by the character code
Display character font name and the number corresponding to the display character color
1st lyrics display data storage means for storing the lyrics display data shown in one display mode and specified by the character code
The changed lyrics font name and the changed character color
A second lyric display data storing means for storing the lyrics display data indicated by the second display mode in response to the storage in the storage means
Based on the changed position information
The calculation means for calculating the corresponding position and the calculation means
The lyrics display data corresponding to the released position is displayed in the second lyrics table.
Read from the display data storage means and correspond to the position calculated by the calculation means in the first lyrics display data storage means .
And a lyrics display control means for displaying lyrics on the screen based on the updated lyrics display data stored in the first lyrics display data storage means. Is characterized by.

According to a second aspect of the invention, in the lyrics display method of karaoke showing the singing timing while partially changing the display mode of the lyrics displayed on the screen according to the progress of the music, the display character font Name, display color, change
Song including character font name, changed character color and character code
Unit of the lyrics information and the position of the lyrics where the display mode should be changed
The change position information shown in units with a decimal point is recorded for each time.
The reading step to read from the memory and the character code
The specified lyrics are displayed in the display character font name and the table.
The lyrics display data shown in the first display mode corresponding to the displayed color is stored in the first lyrics display data storage means, and the character code is stored.
The lyrics specified by the
And a lyrics display data storing step of storing lyrics display data shown in a second display mode corresponding to the changed character color in the second lyrics display data storage means, and a song based on the changed position information.
Calculation stage to calculate the position of the lyrics corresponding to the progression of the song
And reading lyrics display data corresponding to the position calculated in the calculating step from the second lyrics display data storage means, and calculating the calculation stage in the first lyrics display data storage means.
It is characterized by comprising a lyrics display data updating step of writing in a storage area corresponding to the position calculated on the floor, and a lyrics displaying step of displaying lyrics on the screen based on the updated lyrics display data.

[0007]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1. Configuration of Embodiment 1-1. Device Configuration FIG. 1 is a block diagram showing the configuration of the embodiment. The present embodiment is a karaoke lyrics display device in which characters are displayed on the screen as a shape (font image) of an image composed of a set of pixels, and the singing timing is shown while partially changing the display mode. , CPU1, RO
An M2, a music data memory 3, a font memory 4, a screen display memory 5, a back screen display memory 6, a display controller 7, a monitor 8 and an elapsed time counter 9 are provided.

The CPU 1 controls each unit connected via a bus according to a control program stored in the ROM 2. The song data memory 3 is a memory that stores song data of a karaoke song to be played, and the font memory 4 is a memory that stores a plurality of font data in advance.
The screen display memory 5 is a video memory that stores the lyrics display data displayed on the monitor 8. The back screen display memory 6 is a memory for storing lyrics display data indicating the changed display mode. The screen display memory 5 and the back screen display memory 6 both store the lyrics display data as a pixel map. The pixel map is data indicating attributes such as an image shape, a display position, and a character color (display color) to be displayed, corresponding to a font image to be displayed on the monitor 8.

The display control unit 7 also includes a screen display memory 5
The lyrics display data stored in is read and displayed on the monitor 8. The monitor 8 displays lyrics as a font image by vertically and horizontally arranged pixels, and the position where the font image is displayed is specified by the X and Y coordinates. Also,
The elapsed time counter 9 is a counter that is up-counted for each unit time and counts the elapsed time from the start of execution of each process described later. In this embodiment, the unit time is 10 ms (millisecond).

1-2. Structure of music data Next, a structure of music data used in this embodiment will be described. FIG. 2 is a diagram showing the structure of music data.
As shown in the figure, the music data is composed of a header HD which shows various information about the music data such as a music number and a playing time, and track data TD which shows the contents of various processes.

The track data TD is the lyrics track K.
T, performance tracks ET, etc., and each track includes event data I1 indicating a specific process (event) of the performance, such as lyrics display process and musical tone pronunciation process.
I2, I3 ... (Hereinafter, described as event data I if not specified) and time information data ΔT1, ΔT2, ΔT3 showing execution timing of the event data I (hereinafter, referred to as time information data ΔT if not specified). Note)). The time information data ΔT is represented by delta time data represented by a time interval between each event.

The event data I of the lyrics track KT is
It is composed of lyrics information, display instruction information, deletion information, and changed position information. The lyrics information is screen display information indicating the attribute of the character before the display mode is changed, the back screen display information indicating the attribute of the character after the display mode is changed, and the character block indicating the character string to be displayed, which constitutes the lyrics displayed on the monitor 8. It is composed of information. Here, the attribute of the character is indicated by the font name and the display color. That is, the screen display information is composed of data indicating the font name (display character font) and display color (display character color) of the character before the display mode is changed, and the back screen display information is displayed after the display mode is changed. Character font name (changed character font) and display color (changed character color)
It is composed of data for instructing.

Further, the character block information is composed of a plurality of character codes each specifying a character.
Here, the character block refers to a set of characters displayed on the monitor 8. In the illustrated example, the character code C1 is
Identify the character "na". Similarly, the following character codes C2, C3, C4, C5, C6, C7, C8, C
9, C10, C11 are "tsu", "ka", "shi",
"I", "friend", "ga", "hand", "o", "shake",
Identify each "ru" character. That is, the illustrated character block information indicates that the character block "A nostalgic friend waving his hand" is displayed on the monitor 8.

Here, the font is a collection of characters having the same typeface, style, stroke, and size.
The font data is data that specifies the shape of an image composed of a set of pixels. The font memory 4 stores a plurality of font data, and each font data is given a font name. In this embodiment, F
The font data with the font names of 1 and F2 are stored, and it is possible to specify which font is designated as the character attribute by using the font names of F1 and F2. Further, each font has font data corresponding to each character code. That is, if the character code and the font name are designated, the font data of the character displayed on the monitor 8 is specified. Here, FIG. 3 is a diagram showing the relationship between font data and character codes. In the illustrated example, the character code C1 indicates the hiragana "na", and the font F1
And the font F2 is "na" by the set of pixels.
Each has font data forming the shape.

Referring again to FIG. 2, the lyrics event data I
The configuration of will be described. The display instruction information is data indicating the start coordinates on the monitor 8 that displays the character block. The erasing instruction information is data indicating the timing of erasing the character block from the monitor 8, and is represented by the elapsed time from the start of display.

The changed position information is data indicating the relationship between the elapsed time from the start of display and the display mode changed position. In the embodiment, as the changed position information, the coordinate information indicating the position where the change of the display mode should be completed is stored for each unit time (10 ms) in units of a character with a decimal point. Here, FIG. 4 is a diagram showing the information indicated by the changed position information, in which the horizontal axis represents the elapsed time and the vertical axis represents the X coordinate of the character display coordinates, showing the transition of the changed position in the display mode over the elapsed time. It is the graph shown. Specifically, when the elapsed time is t1, it reaches the position of Xp1 and when it is t2, X
This indicates that the display mode should be changed up to the position of p2. Therefore, between the elapsed time t1 and t2,
From the position where the X coordinate is from Xp1 to xp2 (for example, 0.6
The display mode of the characters is changed.

The event data of the performance track ET is, for example, MIDI (Musical Instrument Digital Int).
erface) data based on the standard, and is data that specifies pronunciation, mute, pitch, etc. of a musical sound.

2. Operation of Embodiment Next, the configuration of the embodiment having the above configuration will be described. The CPU 1 reads the music piece data stored in the music piece data memory 3 according to the control program stored in the ROM 2, and performs various processes instructed by each event data. The character display operation performed by reading the lyrics track KT and executing the process instructed by the lyrics event data I will be described below with reference to the flowchart shown in FIG.

First, the first time information data ΔT1 of the lyrics track KT is read, and the process waits until it is time to execute the first lyrics event data I1 (S100).
Then, when it is time to execute the lyrics event data I1, the elapsed time counter 9 is first reset (S10).
1). By this reset, the elapsed time counter 9 can count the elapsed time from the start of the process instructed by the lyrics event data I1. The count value of the elapsed time counter 9 is 1 every unit time (10 ms)
Since it is counted up, the CPU 1 can grasp the elapsed time by referring to the count value of the elapsed time counter 9.

After resetting the elapsed time counter 9 and setting the count value to 0 (elapsed time t0 ms), the lyrics event data I1 is read (S102),
In accordance with the lyrics information and the display instruction information in the lyrics event data I, a pixel map to be displayed on the monitor 8 is generated and written in the screen display memory 5 (S103), and a pixel map after the display mode is changed is generated to generate a back screen. Table memory 6
(S104).

Now, referring to FIG. 6, step S
Details of 103 and S104 will be described. Step S103 is a process of writing the pixel map showing the lyrics to be displayed on the monitor 8 at the elapsed time t0 into the screen display memory 5. That is, the CPU 1 creates a pixel map showing the state before changing the display mode based on the lyrics event data I1 and writes it in the screen display memory 5. At this time, the position of the character block in the pixel map is stored using the coordinates corresponding to the coordinates displayed on the monitor 8. Here, a pixel map created based on the lyrics event data I1 shown in FIG. 2 will be described as an example. The size of the character block created based on the lyrics information is b pixels × c pixels, and the start coordinates specified by the display position information are (Xa, Y
If a), the coordinates (Xa, Ya), (X
A character block is displayed in a rectangular area whose two points (a + b, Ya + c) are diagonal. The pixel map has coordinates (Xa, Ya), (Xa + b, Ya +).
In the rectangular area with the two points in c) as the diagonal, font F
The character block formed by the font image of No. 1 is located, indicating that the display color is blue. (Fig. 2
Screen display information, refer to pixel map of screen display memory 5 in FIG. 6 (1))

Next, in step S104, the CPU 1
On the basis of the lyrics event data I1, a pixel map showing the state after the display mode change is generated in advance and written in the back screen display memory 6. At this time, the position of the character block after the display mode change is stored as the same coordinates as the coordinates indicated by the pixel map stored in the screen display memory 5. Here, the pixel map created based on the lyrics event data I1 shown in FIG. 2 has coordinates (Xa, Ya),
A character block formed by the font image of the font F2 is located in a rectangular area having two diagonal points (Xa + b, Ya + c), which indicates that the display color is white. (See FIG. 2, back screen display information, FIG. 6 (1) Pixel map of back screen display memory 6)

The description is returned to the flowchart shown in FIG. The CPU 1 creates a pixel map and creates a screen display memory 5 (S103) and a back screen display memory 6 (S10).
After writing in 4), next, the elapsed time from the start of the process instructed by the lyrics event data I1 is recognized (S105). The CPU 1 can be recognized by reading the count value of the elapsed time counter 9. Then, the CPU 1 determines whether to erase the character block displayed on the monitor 8 based on the erase instruction information of the lyrics event data I1 (S106). Since the erase instruction information indicates the elapsed time for which the character block should be erased, if the elapsed time recognized in step S105 exceeds the elapsed time for the erase, it is determined that the character block should be erased. When it is determined in step S106 that the character block should not be erased (S106; NO), the CPU 1 executes step S10.
The display mode change position at the elapsed time recognized in 5 is calculated (S107).

Here, a specific example of the change position calculation will be described with reference to FIGS. 4 and 6. The changed position information is the position (X
Coordinates). Here, when the elapsed time recognized in step S105 is t2, it is understood that the display mode must be changed up to Xp2 (see FIG. 4). Therefore, one unit time ago (elapsed time t1)
It can be seen that the display mode of the character must be changed from the position (X coordinate is Xp1) to the position of elapsed time t2 (X coordinate is Xp2). In the Y coordinate direction, since the character block is displayed between Ya and Ya + c, the regions where the character display mode should be changed at the elapsed time t2 are coordinates (Xp1, Ya) and (Xp2, Y).
It can be seen that it is a region in which two points (a + c) are diagonal (see FIG. 6 (2)). In this way, the CPU 1 calculates the area corresponding to the changed position in step S107.

Next, the CPU 1 executes step S10 from the pixel map data stored in the back screen display memory 6.
The pixel map data corresponding to the area calculated in 7 is copied (S108). Then, step S10
The pixel map data copied from the back screen display memory 6 in 8 is written in the storage area of the screen display memory 5 corresponding to the area calculated in step S107 (S109). Therefore, the content of the storage area of the screen display memory 5 corresponding to the area calculated in step S107 is changed to the same content as the pixel map data of the same storage area of the back screen display memory 6. Then, the display control unit 7 reads the changed pixel map data and displays it on the monitor 8, so that the coordinates (Xp1, Y) on the monitor 8 are displayed.
The display mode of the characters in the area in which the two points a) and (Xp2, Ya + c) are diagonal is changed. That is, the font F1
-A part of the character "shi" indicated by the display color blue is changed to a part of the character "shi" indicated by the font F2 and the display color white (see FIG. 6 (2)).

After the pixel map data is overwritten on the screen display memory 5 (S109), the process proceeds to step S10.
5, the elapsed time is further recognized (S105), and it is determined whether the character block should be erased (S106). In this determination, if it is determined that the character block is not erased (S106; NO), the process proceeds to the step of changing the display mode of the character at the next change position (S107 to S10).
9). On the other hand, when it is determined that the character block is erased (S106; YES), the pixel map data stored in the screen display memory 5 is erased and the display of the character block is erased from the monitor 8 (S110). Then, after the display is erased, the process returns to step S100, and the CPU 1 waits for the event execution process until the next lyrics event data I2 is read based on the time information data ΔT2. In this way, until the character block is determined to be erased by the erase instruction information (S106), the characters displayed on the monitor 8 are sequentially changed in the process of circulating the processing from steps S105 to S109. Then, in the process of changing the display mode of the characters,
The operation of copying a part of the data of the area of the pixel map created in advance requires less load on the control portion than the operation of changing the color code for each pixel. Further, since it is possible to create character blocks of various characters and attributes depending on the content of the lyrics information, there is a high degree of freedom in changing the display mode.

3. Modifications The present invention is not limited to the above-described embodiments, and various modifications as described below are possible.

In the above embodiment, the changed position information is the coordinates of each unit elapsed time stored in the sequence. However, the coordinates of some sample points are stored and interpolated using an appropriate interpolation function. You may In this way, the amount of information recorded in the music data can be reduced. Further, the time information data ΔT may not be stored as the changed position information, and the progress position may be calculated from the time information data ΔT of the performance track ET, or a trigger signal may be inserted in the performance track ET as in the conventional technique. You may keep it.

Although the delta time data is used as the time information data ΔT in the music data, the absolute time from the start of the performance may be used. In this case, reset processing is not performed every time each event data I is read, and the elapsed time counter counts the elapsed time from the start of playing. Also, in the changed position information, the progress position is stored based on the elapsed time from the start of performance. In addition, in the embodiment, the unit time is set to 10 ms, but the unit time is not limited to this and may be a shorter time or a longer time.

In the above embodiment, the font data in the pixel map format is used. However, the font data is not limited to this, and the outline font format defined by a set of mathematical expressions may be used. Alternatively, only one type of font may be stored, and the display mode may be changed only for colors. In addition, the colors and fonts in the display mode include modes such as underline, halftone, and inversion.
Further, in the above embodiment, the display color is designated as a single color, but the border color may be designated. Also, a background color may be added. In addition, different lyrics may be displayed after the display mode is changed. In this case, a character code designating a character different from that before the change may be stored in the character block information. You may make it create a character block by reading the lyrics information of other music data. Furthermore, in the above embodiment, the display mode is changed for each rectangular area, but it may be changed for each other area. For example, when changing the display mode for each circular area, the pixel map data of a circular area having a predetermined radius centered on the coordinates specified by the changed position information is read from the back screen display memory 6, and the display screen memory is read. All you have to do is write to the corresponding position of 5.

In the above embodiment, one set of information for creating a character block is stored as the back screen display information, but a plurality of back screen display information are stored so that the information to be used can be arbitrarily selected. May be. For example, the user may be allowed to select, or the singer's gender may be determined from the quality of the voice input from the microphone, and the color or font may be changed depending on the gender. That is, as shown in FIG. 7, a plurality of back screen information is stored in the lyrics information, and a plurality of character blocks are stored in the back screen display memory 6. Then, when the pixel map data is copied from the back screen display memory 6, the change position is calculated according to the storage area of the selected character block so that the display mode with different fonts and colors can be appropriately changed. May be. In this case, information indicating the storage position in the back screen display memory 6 may be stored as back screen information so that the changed position can be calculated. In the illustrated example, the head Y coordinate that stores the character block is stored as the information indicating the storage position. Then, the back screen display memory 6 which is the copy source
The storage area in is calculated based on the Y coordinate stored in the selected back screen display information and the X coordinate information obtained from the changed position information.

Further, when displaying not only the characters but also the background image on the monitor 8, a technique such as superimposing is used to superimpose the pixel map stored in the screen display memory 5 on the video signal. You may

[0034]

As described above, according to the present invention,
It is possible to provide a karaoke lyrics display device and a karaoke lyrics display method that have a high degree of freedom in changing the display and partially change the display mode of the lyrics displayed on the screen without imposing a load on the control portion.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment.

FIG. 2 is a diagram showing a data structure.

FIG. 3 is a diagram showing a relationship between a character code and a font.

FIG. 4 is a diagram illustrating changed position information.

FIG. 5 is a flowchart showing the operation of the embodiment.

FIG. 6 is a diagram illustrating a pixel map.

FIG. 7 is a diagram showing a modification of the structure of lyrics information.

[Explanation of symbols]

1 ... CPU, 2 ... ROM, 3 ... song data memory, 4 …… Font memory, 5: Screen display memory, 6 ... Back screen display memory, 7 ... Display control unit, 8 ... Monitor, 9: Elapsed time counter

Continuation of the front page (56) Reference JP-A-9-120275 (JP, A) JP-A-9-68991 (JP, A) JP-A-10-240277 (JP, A) JP-A-8-234782 (JP , A) JP-A-9-218691 (JP, A) JP-A-10-97266 (JP, A) JP-A-10-187177 (JP, A) JP-A-10-20875 (JP, A) Patent 2508394 ( (58) Fields investigated (Int.Cl. ⁷ , DB name) G10K 15/04 302 G09G 5/00 G09G 5/22 G09G 5/30

Claims (2)

(57) [Claims] 1. A display character font name, display character color, and changed character font in a lyrics display device for karaoke showing singing timing while partially changing the display mode of the lyrics displayed on the screen according to the progress of the music.
Lyrics information including name, changed character color and character code, and song
Of the words, the position where the display mode should be changed is
A memorizer that stores the changed position information indicated by a unit of several dots.
And the lyrics specified by the character code,
The first display mode according to the font name and the display character color.
The first lyrics display data storage means for storing the lyrics display data indicated by and the lyrics specified by the character code are stored in the changed character code.
The second display mode according to the font name and the changed character color
Second lyrics display data storage means for storing the lyrics display data indicated by and lyrics based on the changed position information stored in the storage means.
Calculation means for calculating the position corresponding to the progression of the song
And the lyrics display data corresponding to the position calculated by the calculation means is read from the second lyrics display data storage means, and calculated by the calculation means of the first lyrics display data storage means.
Lyrics display data updating means for writing in a storage area corresponding to the selected position, and lyrics display control means for displaying lyrics on the screen based on the updated lyrics display data stored in the first lyrics display data storage means. A lyric display device for karaoke, which is provided with. 2. A display character font name, a display character color, and a changed character font in a karaoke lyrics display method that shows the singing timing while partially changing the display mode of the lyrics displayed on the screen according to the progress of the music.
Lyrics information including name, changed character color and character code, and song
Of the words, the position where the display mode should be changed is
Read the changed position information indicated by a unit of several dots from the storage means.
The read-out step for displaying and the lyrics specified by the character code are displayed in the display character code.
The first display mode according to the font name and the display character color.
The lyrics display data indicated by the above is stored in the first lyrics display data storage means, and the lyrics specified by the character code is converted into
Second table according to the changed font name and the changed color
The lyrics display data storing step of storing the lyrics display data shown in the illustrated form in the second lyrics display data storing means, and the lyrics display data storing step based on the changed position information, and
A calculation step of calculating a corresponding position, and lyrics display data corresponding to the position calculated in the calculation step is read from the second lyrics display data storage means, and stored in the calculation step of the first lyrics display data storage means. hand
A lyrics display method for karaoke, comprising: a lyrics display data update step of writing in a storage area corresponding to the calculated position; and a lyrics display step of displaying lyrics on the screen based on the updated lyrics display data. .