JP5201204B2 - Karaoke apparatus and lyrics telop display method - Google Patents

Description

  The present invention relates to a technique for displaying a lyrics telop indicating the lyrics while playing a karaoke song and sequentially changing the display mode of the lyrics telop in synchronization with a color change timing corresponding to the progress of the performance.

  Conventionally, in a karaoke apparatus, karaoke music is played and a lyrics telop indicating the lyrics is displayed. As a general expression method of the lyrics telop, the lyrics character group is displayed on the screen about 1 to 3 lines at a display timing corresponding to the progress of the performance, and the displayed lyrics character group corresponds to the progress of the performance. There is a technique in which the singing position is indicated by changing the color from left to right at the color change timing, and the character group is deleted when a predetermined end timing arrives (see, for example, Patent Document 1).

Furthermore, in order to improve the rendition and design of the lyrics telop and the compatibility with the impression of the performance music, various improved techniques for expressing the lyrics telop have been devised.
For example, a technique is disclosed in which characters used in lyrics telop are switched to a specified font type (Gothic, Mincho, pop, etc.) according to the genre of music (pops, enka, rock, etc.) (Patent Literature) 2). In addition, by defining a character type code for each character in the lyrics information in advance, it is possible to specify a font type, size, color, decoration (bold, italic, etc.) in units of one character based on the character type code. (Patent Document 3). Further, a technique is disclosed in which a lyric character font deformation process is performed to link the singing skill evaluation result with the lyric character deformation degree (Patent Document 4).

Japanese Patent Laid-Open No. 10-187177 Japanese Patent Laid-Open No. 9-297592 Japanese Patent Laid-Open No. 6-118979 JP 2008-242363 A

  However, each of the above conventional techniques is merely a change expression for the font and shape, and thus has many problems. For example, by changing the font of the lyrics, it is possible to roughly match the genre and atmosphere of the music, but that alone does not represent an expression that goes into the uniqueness of each music. In addition, when the font data is changed to a set of characters / symbols of the same typeface, the amount of data required for processing increases. In addition, the font data itself is produced with a great deal of effort, and at most it can be used in several different ways. This tendency is particularly noticeable in languages with a large number of characters handled such as Japanese and Chinese belonging to the kanji range. In addition, when the character size or shape is changed, there is a possibility that the layout of the lyrics telop may be distorted, for example, a character string that should normally fit in the image cannot fit in the screen.

  The present invention has been made to solve the above-mentioned problem, and in the display method of lyrics telop, it does not use a change in the font and shape of characters, and improves the stunning and design by a novel expression method that has not existed before. The purpose is to provide the technology.

  The karaoke apparatus according to claim 1, wherein the karaoke apparatus according to claim 1 displays the lyric telop in the lyric display area of the display means according to the lyric data of the karaoke music in accordance with the progress of the performance of the karaoke music. Material image acquisition means for acquiring a control means, a first material image used for display before changing the text of the lyrics telop, and a second material image used for display after changing the text of the lyrics telop With.

  The lyrics telop control means extracts the first composite character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed from the first material image acquired by the material image acquisition means, and the second image acquired by the material image acquisition means. A second synthesized character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed is generated from the material image. Then, the first composite character image is displayed in the lyrics display area at a predetermined display timing in accordance with the progress of the performance. Next, at a predetermined pattern change timing after the display of the first composite character image, the currently displayed first composite character image is sequentially switched to the display of the corresponding second composite character image.

  According to the present invention configured as described above, by synthesizing the material image with the character indicating the lyrics, it is possible to display a lyrics telop with a pattern drawn on the character as if the character was cut out from the image. Furthermore, as a method for indicating the singing position, the character pattern can be changed using two material images before and after the change. The pattern change of the lyrics telop is to switch the text of the lyrics telop displayed using the first material image before the change to the character using the second material image after the change at a predetermined pattern change timing synchronized with the performance. It is richer in pattern diversity than the conventional color changing method that simply changes the color of characters.

  In this way, it is possible to improve the performance and design of the lyrics telop by an unprecedented novel expression method such as the display of the lyrics telop by the composite character image using the material image and the pattern change by the plurality of material images. In particular, by devising the design of the material image according to the image of each piece of music, it is possible to express “unique to this piece of music”. The expression by combining the image with the pattern drawn on the character has a variety that cannot be compared with the expression by simply changing the format or shape. In addition, since the lyrics telop display method of the present invention does not depend on the type of font, it is not necessary to prepare a plurality of font data having a large data amount and high production costs. Further, since the size and shape of the characters displayed on the screen are not changed, there is no possibility that the layout of the lyrics telop will be lost.

  In the lyric telop expression method according to the present invention, it is important to employ a material image of a design that matches the musical composition in order to further improve performance and design. Therefore, it is preferable to configure as described in claim 2. That is, the music data of the karaoke music includes information for specifying the type of the karaoke music or the first material image and the second material image in advance. Then, when the first material image and the second material image are preliminarily incorporated as data in the music data to be played, the material image acquisition means obtains the first material image and the second material image from the music data. get. On the other hand, when the material image is not incorporated in the music data, the performance target is selected from a plurality of first material images and second material images previously stored in the storage means in association with each type of karaoke music. A material image corresponding to the type assigned to the music data is selected and acquired.

  By incorporating the data of the original material image suitable for the music into the individual music data, it is possible to display lyrics with extremely high affinity with the music. In addition, by incorporating the material image into the music data, the material image can be easily spread along with the music data using the communication network when distributing music in the online karaoke.

  On the other hand, a material image corresponding to the type of musical piece to be played can be selected and acquired from a plurality of material images prepared in advance for each type of karaoke musical piece (for example, genre or format). Since such a method is an expression that uses general-purpose material images prepared for each type of karaoke song, in terms of uniqueness, it is transferred to a method that prepares a unique material image for each individual song. This is more advantageous in terms of cost than preparing individual material images for each piece of music. Especially in online karaoke, there are hundreds of thousands of music assets that have been created in the past and are still in use, so if you prepare individual material images for each of these hundreds of thousands of music, it will take a lot of time and money. It takes. Therefore, it is possible to save labor by using general-purpose material images prepared for each genre.

  Next, the karaoke apparatus according to claim 3 has the following characteristics. First, the first material image and the second material image are composed of images having a display size smaller than that of the lyrics display area that can be arranged in the lyrics display area. Then, the lyrics telop control means repeatedly copies the same first material image over the entire range corresponding to the lyrics display area in the first image buffer area to form a continuous tile-like arrangement, and is arranged in the range. From the first material image group, an image shape obtained by laying out characters indicated by the lyrics data to be displayed at a predetermined position in the lyrics display area is extracted to generate a first composite character image. Similarly, the same second material image is repeatedly copied over the entire range corresponding to the lyrics display area in the second image buffer area to form a continuous tile-shaped arrangement, and the second material image arranged in the area A second composite character image is generated by extracting an image shape obtained by laying out characters indicated by the lyrics data to be displayed at a predetermined position in the lyrics display area from the group.

  By repeatedly copying and using the same material image in this way, it is possible to cover the material image with a small display size regardless of the size of the lyrics display area where the lyrics telop is displayed. For this reason, even if two material images are individually prepared for a large number of music pieces, the data amount can be suppressed to a sufficiently practical capacity. In addition, by generating a composite character image from an image in which material images are continuously arranged in a tile shape (which indicates that elements of a pattern constituted by repetition are arranged), only a character portion is obtained from a single large pattern. It can express lyrics telop with continuity in the pattern as if it had been cut out.

  Next, the invention according to claim 4 relates to a lyrics telop display method for displaying a lyrics telop in a lyrics display area of a display means in accordance with the lyric data of the karaoke music as the performance of the karaoke music is progressed. The lyric telop display method of the present invention includes a first material image that is a flat image used for display before changing the pattern of the lyrics telop, and a flat image used for display after changing the character of the lyrics telop. A procedure for acquiring a second material image, a first composite character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed from the acquired first material image, and the acquired second material image The first synthesized character image is displayed in the lyrics display area at a predetermined display timing in accordance with the procedure of generating the second synthesized character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed The first composite character image being displayed is sequentially switched to the display of the second composite character image corresponding to the display procedure and the predetermined pattern change timing after the display of the first composite character image. And a obtain procedure.

  According to the lyrics telop display method configured as described above, the same effects as those described above with respect to the karaoke apparatus 1 according to claim 1 can be obtained.

The block diagram which shows the structure of the karaoke apparatus. Explanatory drawing which shows a data structure. Explanatory drawing which shows the example of a display of a lyrics telop. The flowchart which shows the procedure of the main process. Explanatory drawing which shows the procedure of the tiling copy of a material image. The flowchart which shows the procedure of a telop reproduction process. Explanatory drawing which shows the procedure of the process which synthesize | combines a character image.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following embodiment at all, and can be implemented in various aspects.
[Description of configuration of karaoke apparatus 1]
As shown in FIG. 1, the karaoke apparatus 1 includes a CPU 14 as a control unit that controls the entire karaoke apparatus 1 and each unit connected to the CPU 14, that is, an operation panel 10, a video processing unit 11, a display 12, and a hard disk. A drive (HDD) 13, a RAM 15, a ROM 16, a communication interface 17, an audio treatment unit 18, and the like are provided.

  The operation panel 10 is an input device for performing various operations such as karaoke music reproduction reservation. The video processing unit 11 is a video processing device including a graphic engine that converts image information into a video image and a decoder that reproduces compressed video data. Image information or the like visualized by the video processing unit 11 is displayed on the display 12 connected to the video output terminal. The HDD 13 is a music database in which a lot of karaoke music data is recorded, a system program or application program for controlling the operation of the karaoke device 1, a material image database by genre used for changing the pattern of lyrics telop (details will be described later), character display It is a storage device for storing various data such as font data used for the. The RAM 15 is a storage device used as a main memory of the CPU 14, and is used as an image buffer for temporarily storing programs and various data read by the CPU 14 and for developing image data. The ROM 16 is a read-only storage medium and stores some system programs such as IPL and BIOS and system data. The communication interface 17 is a communication device for performing data with a distribution server via an external network such as the Internet connected to a network connection terminal.

  The sound processing unit 18 performs performance reproduction based on MIDI (Music Instrument Digital Interface) data included in the music data, and also performs the performance reproduction sound and the singer's input from a microphone (not shown) connected to the audio input terminal. The voice processing is appropriately performed by mixing the singing voice, and the voice signal subjected to the voice processing is output from the audio output terminal. The audio signal output from the audio output terminal is amplified by an amplifier (not shown) connected to the audio output terminal and then emitted from a speaker (not shown).

  The CPU 14 performs a process of playing accompaniment music of karaoke music designated by the user via the operation panel 10 or a remote control terminal (not shown). At this time, based on the telop data included in the music data to be played, the lyrics telop of the karaoke music is displayed on the display screen of the display 12 and is synchronized with the progress of the performance for the purpose of showing the singing position to the singer. To change the character pattern. In this embodiment, a pre-change material image (corresponding to a first material image) is used for character display before change, and the pattern is sequentially switched from there to a post-change material image (corresponding to a second material image). In this way, the pattern change of the lyrics telop is realized.

Since other functions and configurations of the karaoke apparatus 1 are in accordance with known techniques, a detailed description thereof is omitted here.
[Description of data structure]
As shown in FIG. 2A, the material image database classified by genre stored in the HDD 13 is a set of material images (before / changed) for each genre for each genre of karaoke music (for example, pops, enka, etc.). The later compressed image data is associated with a genre code which is an identification code of the genre, and a plurality of them are recorded.

  The material image (before / after change) is recorded in PNG (Portable Network Graphics) format image data, which is a compressed image format, and includes a PNG identifier, an image header indicating an image size, a compressed image string of a planar image, and the like. It consists of In addition, each material image recorded in the material image database classified by genre has patterns and patterns (sentences) that match the genre theme and artistic features of karaoke music.

  Next, as shown in FIG. 2B, the music database stored in the HDD 13 is a database in which a large number of music data corresponding to individual karaoke music is recorded. Each piece of music data includes a song name, a composer name, a song number, a genre of the song, metadata in which information indicating the presence or absence of an individual material image is registered for the song, and a set of two material images attached to the song data. It consists of data (before / after change), MIDI data for performing a MIDI performance (MIDI performance data), and telop data for displaying lyrics telop.

  The telop data has a configuration in which a plurality of small data groups (block data B01 to Bnn) composed of display data and attribute data are arranged in time series. Of these, the display data defines the character string as the lyrics telop, the coordinates indicating the position where the character string is displayed on the display area of the screen, and the font size of the character string. The attribute data includes a display step indicating the timing of displaying the character string in the display area of the screen, an erasing step indicating the timing of erasing the character string displayed in the display area from the screen, and a character displayed in the display area of the display. A change step indicating the timing of changing the pattern (material image) of the column and a color change speed indicating the speed of changing the color of the character string being displayed in the display area are defined. Here, “step” is a timekeeping value (pronunciation timing) that is a reference for MIDI performance, and by sharing this value with the MIDI performance, the control of the performance sound and the lyrics telop can be synchronized. ing.

  Note that individual material image data for each music piece may not be attached depending on the music piece. When individual material image data is attached, it is registered that there is a material image in the metadata of the music data, and when it is not attached, it is registered that there is no material image in the metadata of the music data. . The material image (before / after change) attached to the song data is formally the same as the material image included in the above-mentioned genre-based material image database, but the theme, artistic feature, or lyrics of each song It is different in that a pattern and a crest (sentence) according to the contents of are drawn.

  In addition, each of the material images included in the material image database classified by genre and the material images individually included in each piece of music data is displayed on a prescribed display area where a lyrics telop is displayed on the screen. The image size is small enough to be repeatedly arranged in a tile shape. Thereby, it is possible to deal with display areas of various sizes, and it is possible to reduce the size of the material image data (for example, several kbytes).

  In the present embodiment, the reason for adopting the PNG format instead of the JPEG format as the data format of each material image will be described below. Each material image is a small image as described above, and is not a natural image such as a landscape, but is composed of artificial patterns such as genres, themes, and patterns (sentences) that match artistic features in karaoke music. Often images (eg, computer graphics). These material images are stored as material image data after data conversion (compression) in PNG format. The compressed material image data is expanded on the memory and then embedded in the lyrics font image (see FIGS. 3 and 7 described later).

  The PNG format image corresponds to lossless compression in which the data before compression and the data after compression / decompression processing are completely equal. Therefore, the image quality of the material image developed on the memory is not different from the quality at the time of production, so when embedding the developed material image in the font image of the lyrics, the pattern color and line boundary are not clearer than the original image It will never be.

  However, when a material image is produced in an irreversible compression image format such as a JPEG image, the image quality of the material image that has undergone compression / decompression processing is deteriorated from that at the time of production. As a result, when the developed material image is embedded in the lyric font image, there is a high possibility that the color of the pattern and the boundary surface of the line will appear blurred compared to the original image. Therefore, if the karaoke apparatus has a program that can develop an image in the PNG format, the material image is better in the PNG format for use in karaoke lyrics telop.

Next, a display example of the lyrics telop by the karaoke apparatus 1 of the present embodiment will be described with reference to FIG.
First, FIG. 3A is a diagram showing a display example of a conventional lyrics telop (color change). In the conventional color change of lyrics, the singing position of the lyrics is indicated by sequentially switching the display color of the characters at a predetermined change timing with the progress of the performance of the karaoke music.

  On the other hand, FIGS. 3B to 3D are diagrams showing display examples of the lyrics telop (pattern change) of the present embodiment. Among these, the examples shown in FIGS. 3B and 3C show the display of lyrics telop using material images corresponding to the genre of karaoke music such as pops and enka when there are no individual material images in the performance music. The pattern is changed. On the other hand, in the case shown in FIG. 3D, when there is an individual material image in the performance music, the display of the lyrics telop and the pattern change are performed using the individual material image corresponding to the music. In this case, a material image with a motif of cherry blossoms along the lyrics of the theme “Sakura no Hana” is used.

  As shown in FIGS. 3B to 3D, in the lyric telop display method according to the present embodiment, characters are cut out from a single symbol by synthesizing a material image with a bitmap forming a character display. You can display lyrics telop with patterns on the characters themselves, like Taka. In addition, two types of material images for before and after change are prepared, and the material image used for character display is sequentially switched at a predetermined change timing with the progress of the performance of karaoke music. This can be indicated by the change in the pattern.

  Note that the material image used for displaying the lyrics telop may be composed of repeated repetition of the same pattern. Furthermore, it is good to make it the pattern with continuity that a pattern connects with the upper end and lower end of a material image, and the left end and right ends. With this configuration, when the material image is repeatedly copied in a tile shape with respect to a large display area to form one image, a pattern in which the same pattern is repeated with continuity can be configured.

[Description of main processing]
Next, the procedure of main processing executed by the CPU 14 of the karaoke apparatus 1 will be described with reference to the flowchart of FIG. This process is executed when the performance of the karaoke music designated by a predetermined music selection operation is started.

  First, the CPU 14 acquires music data corresponding to the karaoke music to be played from the music database (HDD 13) (S101). Next, in S102, the process branches depending on whether or not material image data for lyrics telop is attached to the music data acquired in S101. The presence / absence of material image data is determined by referring to metadata attached to music data.

  When material image data is attached to the music data (S102: YES), data of a set of material images (before / after change) attached to the music data is read (S103). On the other hand, if no material image is attached to the music data (S102: NO), the genre assigned to the music is identified with reference to the metadata attached to the music data, and the material image database by genre stored in the HDD 13 is stored. The data of a set of material images (before / after change) corresponding to the genre of the music is read out from (S104).

  Next, the compressed data of the material image read in S103 or S104 is decompressed and expanded in a predetermined area of the RAM 15 (S105). Here, the same processing is performed for each of the two material images before and after the change. Next, using the material images developed in S105, the before-change material image buffer (corresponding to the first image buffer region) and the after-change material image buffer (corresponding to the second image buffer region) provided in a predetermined region of the RAM 15 are used. ), An image iterative processing loop is started (S106). The pre-change / post-change material image buffer is a virtual screen for image composition preparation that exists in the storage area of the RAM 15.

  In this image iterative processing loop, the processing of the following S107 is repeatedly performed so that material images are continuously tiled in the entire display area of each material image buffer (tiling). In S107, (1) the developed pre-change material image is copied in a tiled manner to a specified display area in the pre-change material image buffer. (2) The expanded after-change material image is tiled and copied to the display area in the after-change material image buffer. If the material image has not been spread over the entire display area of each material image buffer, the process returns to S106. If the material image has been spread over the entire display area of each material image buffer, an image iteration processing loop is performed. The process ends (S108).

  FIG. 5 conceptually shows how each material image is copied to each material image buffer in an image repetitive processing loop. In this image iterative processing loop, an operation is performed in which each material image obtained by expanding the compressed data is repeatedly copied and spread over a display area of a specified size in each material image buffer without a gap. Regarding the size of the display area, for example, the vertical direction may be a size corresponding to the font size of characters displayed as lyrics, and the horizontal direction may be a size corresponding to the horizontal width of the display screen on the display 12.

  Returning to the flowchart of FIG. In S109, MIDI playback processing (S110) and telop playback processing (S111) are started. These processes are executed by multitasking parallel processing. In the MIDI playback process in S110, the MIDI performance of the karaoke music is performed using the MIDI data in the read music data. Since the MIDI performance of the karaoke music composition is in accordance with a known technique, a detailed description is omitted. On the other hand, in the telop reproduction process of S111, the lyrics telop is displayed using the telop data in the read music data. The detailed contents of the telop reproduction process will be described later. When the parallel processing of the MIDI playback processing and the telop playback processing ends (S112), the main processing ends.

[Description of telop playback processing]
Next, the procedure of the telop reproduction process executed by the CPU 14 of the karaoke apparatus 1 will be described with reference to the flowchart of FIG. This process is a process executed in S111 of the main process (see FIG. 4).

  In this telop reproduction process, a block data processing loop is started for telop data included in music data to be played (S201). Specifically, the processing of S202 to S212 is performed one by one for all the block data B01 to Bnn included in the telop data. Note that this block data processing loop is not completed in one process for one block data, and has a structure in which the same block is processed many times. The number of block data processing loops and the number of block data Does not match. Therefore, the block data processing loop is repeated until the MIDI performance of the music is completed.

  First, in S202, one block data to be processed in the current loop is read out. Then, each step value in the attribute value of the block data is compared with the step value currently being played in the parallel MIDI reproduction processing. Based on the comparison result, a display process to be executed is selected in each process of S203, S207, and S210.

  When the MIDI performance step value reaches the block data display step value (S203: YES), the processing of S204 to S206 is executed. First, in S204, font expansion processing is performed in which font data read from the HDD 13 or the like is expanded in a screen buffer (virtual screen for character preparation) provided in a predetermined area of the RAM 15 according to display data in the block data. . Specifically, the font image of the character string belonging to the block data is drawn in the specified display area in the screen buffer according to the layout specified by the font size and coordinates in the display data in the block data. Next, in S205, the font image of the lyric character string drawn in the display area of the screen buffer and each material image group drawn in each display area of the before-change material image buffer and after-change material image buffer are respectively combined. Perform pixel composition processing.

  The procedure of this pixel composition process will be described with reference to the conceptual diagram of FIG. The font image drawn in the display area of the screen buffer has a character shape represented by monochrome binary values (here, white = 0, black = 1) assigned to each pixel on the bitmap of the display area. On the other hand, in the display areas of the two material image buffers before and after the change, a pattern is represented by the color and density assigned to each pixel on the bitmap. Here, the pixels of the corresponding coordinates in the display areas of both the screen buffer and the material image buffer are compared, and the material image buffer (before change / change) for the pixel having the value of “1 (black)” in the font image. The pixel of the corresponding coordinate is extracted from (after) and synthesized. By doing so, the pre-change composite image (corresponding to the first composite character image) and the change obtained by extracting the image shape of the character string indicated by the block data from the pre-change material image group and the post-change material image group, respectively. A post-synthesized image (corresponding to a second synthesized character image) is generated.

  The CPU 14 draws the pre-change composite image in the display area of the pre-change block image buffer, and draws the post-change composite image in the display area of the post-change block image buffer. The pre-change / post-change block image buffer is a virtual screen for preparing lyrics telop display that exists in the storage area of the RAM 15.

  Returning to the flowchart of FIG. Next, in S206, the lyrics character string of the pre-change composite image drawn in the display area of the pre-change block image buffer is displayed in the specified display area on the screen of the display 12, and the process proceeds to S212.

  On the other hand, when the MIDI performance step value reaches the block data change step value (S207: YES), the processing of S208 to S209 is executed. First, in S208, the change size (number of dots) is calculated from the step value of the MIDI performance and the change speed value of the block data. In S209, the post-change composite image of the display area of the post-change block image buffer is converted into the pre-change composite image currently displayed on the display 12 by the number of dots of the change size calculated in S208 from the beginning of the lyrics telop. A partial display is superimposed on the front. After the process of S209, the process proceeds to S212.

  On the other hand, if the MIDI performance step value reaches the block data erasure step value (S210: YES), the processing of S211 is executed. In S211, the lyrics telop image (pre-change composite image and post-change composite image) being displayed on the display 12 is deleted. After the process of S211, the process proceeds to S212. If the MIDI performance step value does not correspond to any process in S203, S207, and S210, the process proceeds to S212 as it is.

  In S212, it is determined whether or not the MIDI performance has ended. If the MIDI performance is continued (S212: NO), the process returns from the end of the block data processing loop of S213 to the process of S201. As long as the MIDI performance continues, this block data processing loop is repeated. When the MIDI performance is finished (S212: YES), the telop reproduction process is finished.

[Other devices applicable to this embodiment]
Next, various devices applicable to the karaoke apparatus 1 of the present embodiment will be described.
(1) In the above embodiment, an example has been described in which lyrics telop display and pattern change are performed using two sets of material images (before / after change) for each piece of music to be played. On the other hand, the lyrics telop may be displayed and the pattern may be changed using a plurality of sets of material images (before / after change) for each piece of music. For example, in a song having a plurality of singing parts such as a duet song, it is conceivable to use different sets of material images (before / after change) for each individual singing part. Alternatively, it may be configured to display the lyrics telop by switching to a set of different material images (before / after change) in the middle of the music.

  (2) In the above-described embodiment, the case of using a material image prepared for each genre of karaoke music or a material image prepared separately for each music has been described. In addition to this, a special material image may be made available to individual members in conjunction with a member service that has been actively performed in the karaoke market in recent years. Specifically, a karaoke in which a member uses a rare material image as a limited privilege according to the number of points earned by the member by giving points to the member according to the use performance of the member's karaoke service. A service that can be used for music is conceivable. Moreover, you may comprise so that a user can select the raw material image used for the display of a lyrics telop.

[Correspondence between Configuration of Embodiment and Configuration described in Claims]
Correspondence between each configuration of the karaoke apparatus 1 of the embodiment and the configuration described in the claims is as follows. The display 12 of the embodiment corresponds to display means in the claims. The HDD 13 corresponds to a storage unit. The CPU 14 corresponds to a lyrics telop control unit and a material image acquisition unit.

[effect]
According to the karaoke apparatus 1 of the embodiment, the following effects can be obtained.
Lyrics with a pattern on the character itself, as if the character had been cut out from a single pattern by synthesizing material images with various patterns and patterns (sentences) drawn on the text display of the lyrics telop A telop can be displayed. In this way, it is possible to improve the performance and design of the lyrics telop by an unprecedented novel expression method.

  The display method of the lyrics telop using the combination of the character image and the material image does not depend on the type of font, and therefore it is not necessary to prepare a plurality of font data having a large data amount and high production cost. In addition, since the size and shape of characters displayed on the screen are not changed, the layout of the lyrics telop is not disturbed.

  By incorporating the data of the original material image that matches the music into the music data of the karaoke music, it is possible to display the lyrics with extremely high affinity with the music. In addition, by incorporating the material image into the music data, the material image can be easily spread along with the music data using the Internet at the time of music distribution in online karaoke.

  On the other hand, in the case of using a genre-specific material image stored in advance in a storage unit such as the HDD 13, the cost is more advantageous than preparing a material image for each individual piece of music. In addition, if it is a general-purpose material image prepared for each genre, the lyrics telop expression method of the present invention can be easily applied to hundreds of thousands of music assets that have been created in the past and are still used today. it can.

  By adopting a configuration in which one material image is repeatedly copied to the material image buffer, it can be covered with a material image having a small display size regardless of the size of the display area where the lyrics telop is displayed. For this reason, even if material images are individually prepared for a large number of music pieces, the amount of data can be suppressed to a sufficiently practical capacity. Further, by generating a composite character image from an image in which material images are continuously arranged in a tile shape, it is possible to express a lyric telop having continuity as if only a character portion has been cut out from one large symbol.

  DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus, 10 ... Operation panel, 11 ... Video processing part, 12 ... Display, 13 ... Hard disk drive (HDD), 14 ... CPU, 15 ... RAM, 16 ... ROM, 17 ... Communication interface, 18 ... Audio | voice processing part .

Claims (4)

A karaoke apparatus comprising lyrics telop control means for displaying lyrics telop in the lyrics display area of the display means according to the lyric data of the karaoke music in accordance with the progress of the performance of the karaoke music,
A first material image, which is a flat image used for display before changing the pattern of the text in the lyrics telop, and a second material image, which is a flat image used for display after changing the pattern of the text in the lyrics telop, are acquired. With material image acquisition means,
The lyrics telop control means is:
From the first material image acquired by the material image acquisition unit, the first composite character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed, and the second material image acquired by the material image acquisition unit, And generating a second composite character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed, and displaying the first composite character image in the lyrics display area at a predetermined display timing in accordance with the progress of the performance. And at the predetermined pattern change timing after the display of the first composite character image, the first composite character image being displayed is sequentially switched to the display of the second composite character image corresponding thereto. Karaoke device to do. The karaoke apparatus according to claim 1,
In the music data of the karaoke music, information for specifying the type of the karaoke music, or the first material image and the second material image are incorporated in advance,
When the first material image and the second material image are preliminarily incorporated as data in the music data to be played, the material image acquisition unit obtains the first material image and the second material from the music data. When a material image is acquired and no material image is incorporated, among the plurality of first material images and second material images stored in advance in the storage means in association with each type of karaoke music A karaoke apparatus characterized in that a material image corresponding to the type assigned to the music data to be played is selected and acquired. In the karaoke apparatus of Claim 1 or Claim 2,
The first material image and the second material image are composed of images having a display size smaller than the lyric display area so that a plurality of lyric display areas can be arranged in the lyric display area,
The lyrics telop control means is:
The same first material image is repeatedly copied over the entire range corresponding to the lyrics display area in the first image buffer area to form a continuous tile-shaped arrangement, and the first material image group arranged in the range From the above, the first composite character image is generated by extracting an image shape in which characters indicated by the lyric data to be displayed are laid out at predetermined positions in the lyric display area,
The same second material image is repeatedly copied in a range corresponding to the lyrics display area in the second image buffer area to form a continuous tile-like arrangement, and the second material image group arranged in the range Generating the second composite character image by extracting an image shape in which the characters indicated by the lyrics data to be displayed are laid out at predetermined positions in the lyrics display region;
Karaoke device characterized by. In accordance with the progress of the performance of the karaoke song, a lyrics telop display method for displaying the lyrics telop in the lyrics display area of the display means according to the lyrics data of the karaoke song,
A first material image, which is a flat image used for display before changing the pattern of the text in the lyrics telop, and a second material image, which is a flat image used for display after changing the pattern of the text in the lyrics telop, are acquired. Procedure and
The first composite character image obtained by extracting the image shape of the character indicated by the lyrics data to be displayed from the acquired first material image, and the character indicated by the lyrics data of the display target from the acquired second material image Generating a second synthesized character image extracted from the image shape of
Displaying the first composite character image in the lyrics display area at a predetermined display timing according to the progress of the performance;
A step of sequentially switching the first composite character image being displayed to the display of the second composite character image corresponding thereto at a predetermined pattern change timing after the display of the first composite character image. Lyric telop display method.