JP4641083B2 - Music score display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a score display apparatus that displays a score with lyrics.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known an automatic performance apparatus that performs automatic performance based on music data represented by SMF (Standard MIDI File) in which time information is added to performance data and lyrics data. In the musical score display device provided in such an automatic performance device, the time information added to the performance data of the song data is the timing when each note number is generated, or the time information added to the lyrics data is When performing a karaoke performance, there are many times when the lyrics are changed in response to a so-called wiping time in which the display mode of the lyrics displayed on the screen is gradually changed according to the flow of the singing. Further, the time information added to the lyrics data is usually earlier than the time information added to the performance data because the display delay of display means such as an LCD is taken into consideration.
[0003]
[Problems to be solved by the invention]
In the score display apparatus as described above, if the display position is simply calculated based on the time information added to the lyrics data, for example, the lyrics of only the first bar of the song are displayed on the display means of the score display apparatus. In this case, as described above, the time information added to the lyric data is at an earlier timing than the time information added to the performance data, so the first of the second measure is near the end of the first measure. There is a problem that the head (letters) of the lyrics is displayed.
[0004]
Further, in order to display each of the lyrics corresponding to the time information at a position corresponding to the time information of the display means, the display means displays the resolution of the drawing information when drawing the character string. Performance of about the resolution is required. Therefore, there is a problem that the musical score display device has a complicated configuration.
[0005]
In view of the above circumstances, an object of the present invention is to provide a musical score display device capable of performing appropriate display with a simple configuration.
[0006]
[Means for Solving the Problems]
The musical score display apparatus of the present invention that achieves the above-described object provides:
(1) Music score display section for displaying a score with lyrics (2) The display position of the lyrics is adjusted to one of the dividing positions obtained by dividing the bar section of the displayed music score with a predetermined resolution, and the lyrics are converted into the above-mentioned score. A display control unit to be displayed on the display unit is provided.
[0007]
The musical score display apparatus of the present invention adjusts the bar section of the displayed musical score to any one of the division positions divided by a predetermined resolution, and displays the lyrics by matching the display position of the lyrics to this division position. Compared with the conventional technique of displaying lyrics by simply calculating the display position, for example, the head of the first lyrics of the second measure is displayed near the end of the first measure. This is prevented. Therefore, appropriate display can be performed with a simple configuration.
[0008]
Here, it is preferable that the display control unit adjusts the display position of the lyrics so that the central character of one word comes to the corresponding position of the score.
[0009]
In this way, the correspondence between one word and the score becomes clear.
[0010]
It is also preferable that the display control unit display the lyrics after filling the space with a specific symbol when a space is generated in the middle of one word as a result of adjusting the display position of the lyrics. It is an aspect.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
[0012]
FIG. 1 is a block diagram of a score display apparatus according to an embodiment of the present invention.
[0013]
A score display apparatus 10 shown in FIG. 1 includes a CPU 11, a RAM 12, a ROM 13, an operator group 14, a display 15, and an FDD (floppy disk drive) 16. The CPU 11, RAM 12, ROM 13, operator group 14, display 15, and FDD 16 are connected by a data bus 17.
[0014]
The CPU 11 reads out the program stored in the ROM 13 via the data bus 17 and performs various processes.
[0015]
The RAM 12 stores music data transferred from the FDD 16, various flags, and the like.
[0016]
The ROM 13 stores a program for controlling the score display apparatus 10 shown in FIG.
[0017]
The operator group 14 includes a plurality of switches for setting various states of the musical score display apparatus 10 shown in FIG.
[0018]
The display 15 displays a score with lyrics. An LCD panel is used for the display 15.
[0019]
The FDD 16 controls a floppy disk (not shown) inserted from the outside of the score display apparatus 10. A plurality of song data are stored on this floppy disk.
[0020]
The CPU 11 and the ROM 13 play the role of the display control unit according to the present invention. As will be described in detail later, the display control unit determines the display position of the lyrics and the bar section of the displayed score. The lyrics are displayed on the display unit 15 by adjusting to any one of the division positions separated by the resolution.
[0021]
2-7 is explanatory drawing of the process by the said display control part.
[0022]
FIG. 2 is a diagram illustrating how the display position of lyrics displayed in Japanese is adjusted.
[0023]
FIG. 2 shows both hiragana “ra” before the quantization process and hiragana “ra” after the quantization process. The quantization process as used in the present invention is a process of quantizing (rounding up) a bar section of a musical score to be displayed with a predetermined resolution, and a 1 W divided by a grid is placed below “Hi” in Hiragana. Multiple break positions are shown. Adjustments are made so that one alphabetic character, that is, an English (ASCII code) character is drawn at these 1W break positions. Further, adjustment is performed so that Japanese (Shift JIS) characters are drawn at the separation positions for 2 W indicated by the grids a and b, such as “ra” of hiragana shown in FIG.
[0024]
As shown in FIG. 2, before the quantizing process, the trailing end of “R” protrudes from the separation position of 2 W indicated by the grids a and b, but after the quantizing process, the 2 W portion is drawn. It has been adjusted so that "ra" fits in the break position.
[0025]
FIG. 3 is a diagram showing how the display position of lyrics displayed in English is adjusted.
[0026]
First, bp, nCur, and Cur shown in FIG. 3 will be described.
[0027]
bp is a drawing start position of a lyric event, and more specifically, is generated based on time information of the lyric event, and is a reference position for displaying the lyric event on a display means such as an LCD. Also, nCur is a lyric event drawing start candidate position after the quantization process, and is closest to the drawing start position bp of each lyric event among a plurality of dividing positions (grids) generated by dividing a bar section with a predetermined resolution. Is a drawing start candidate position nCur of the lyrics event after the quantization process. Further, Cur refers to the drawing start candidate position of the lyric event after the quantization process, and more specifically, the drawing start position of the final lyric event determined based on the drawing start candidate position nCur of the lyric event after the quantization process. Say.
[0028]
The lyric event drawing start position bp of the character string “the” is generated based on the lyric event time information. As described above, the lyric event time information is earlier than the time information added to the performance data. Since it is the timing, it is desirable that the character string “the” is originally written from the grid c, but the character string “the” is shifted as shown in the figure. After quantization, it is represented from the position of the grid c.
[0029]
Next, centering processing is performed. In the centering process, the display position of the word “the” is adjusted so that the character “h” at the center of the word “the” is positioned at the corresponding position of the score. After the centering process, adjustment is made so that the front end of the character “h” at the center of the word “the” comes to the position of the grid c described above. Also, a new drawing start candidate position Cur is set in place of the drawing start candidate position nCur.
[0030]
FIG. 4 is a diagram showing how the lyrics display position is adjusted in a two-measure section.
[0031]
As described above, the time information added to the lyric data takes into account the timing of changing the lyric corresponding to the wiping time of the karaoke lyrics, the display delay of the display means such as the LCD, etc. The timing is earlier than the time information added to the data. For this reason, if the display position is simply calculated and displayed based on the time information added to the lyrics data, as shown in the upper part of FIG. 4 (before the quantization process), the first character “Chi” of the lyrics is displayed. However, there is a lack of proper score display because it protrudes from the beginning of the first measure. Therefore, in the present embodiment, as described with reference to FIG. 2, the display position of the lyrics is adjusted to one of the separation positions (in this case, in units of 2W), so that the lower part of FIG. 4 (after the quantization process) The lyrics are displayed properly as shown in
[0032]
FIG. 5 is a diagram illustrating a state in which a space is filled with a specific symbol when a space is generated in the middle of an alphabetic character.
[0033]
In this embodiment, when the lyrics are in English, a blank is inserted at the end of the character string of the lyrics. However, no blank is inserted at the end of a partial character string (“Ba” in FIG. 5), which is a partial character string of one word. For example, in the case of (a) “the”, (b) “pen”, (c) “cil”, since a space is inserted at the end of (a) and (c), it is treated as a normal character string. Since no blank is inserted at the end of b), it is treated as a partial character string.
[0034]
When displaying the lyrics displayed in alphabetical characters, as a result of adjusting the display position of the lyrics, as shown in the upper part of FIG. 5, when a space occurs in the middle of one word “Baby”, that is, a partial character string When a vacancy occurs at the end of, the lyric is displayed after the vacancy is filled with a specific symbol hyphen “-” as shown in the lower part of FIG.
[0035]
Lyric data and its time information are extracted as lyric events from song data represented by SMF in which time information is added to performance data and lyric data, respectively, and will be described below with reference to FIGS. Create a table as shown in (b).
[0036]
FIG. 6 is a diagram showing a musical score in which the display position of the lyrics in one measure section is adjusted and the arrangement of the lyrics data.
[0037]
In FIG. 6A, the lyrics adjusted to the delimiter positions composed of grids coarser than the 192 pixel dots are displayed on the screen composed of 192 pixel dots per bar section. FIG. 6B shows a table composed of a plurality of lyrics events (Lrc [i]) for displaying the lyrics shown in FIG. This table stores data for the first measure, beat data in the first measure, timing (time information) data when the quarter note length is 96 ticks, and character string data. ing.
[0038]
FIG. 7 is a diagram showing a musical score in which the display position of the lyrics is adjusted over two measures and the arrangement of the lyrics data.
[0039]
In the fifth bar shown in FIG. 7A, a space is generated between the partial character string “maz” constituting one word “mazing” displayed in alphabetical characters and the next character string “ing”. In that case, the last (nLast) of the partial character string “maz” and the drawing start candidate position nCur of the next character string “ing” are filled with a specific symbol hyphen “-” and then the lyrics Is displayed.
[0040]
Further, the word “how” in the sixth bar is corrected by being centered. In this centering process, the display position of the word “how” is corrected so that the character “o” in the center of the word “how” is the corresponding position of the quarter note G. After the centering process, the front end of the first character “h” is at a position of nCur− (3/2) × W with respect to the drawing start candidate position nCur.
[0041]
FIG. 7B shows a table including a plurality of lyrics events (Lrc [i]) for displaying the lyrics of the sixth bar shown in FIG. 7A. This table stores data for the sixth measure, beat data for the sixth measure, timing (time information) data when the quarter note length is 96 ticks, and character string data. ing.
[0042]
In this musical score display device 10, first, the performer inserts a floppy disk into the FDD 16 shown in FIG. 1, and operates the operator group 14 with the music data to be played from the music data stored on the floppy disk. To select. At this time, the table as shown in FIGS. 6 and 7 is created for the lyrics event. When the performance is started, the musical score with lyrics for two measures is displayed on the display unit 15 as described below.
[0043]
FIG. 8 is a flowchart showing a drawing routine displayed on the display after the performance is started.
[0044]
In this routine, a score with lyrics is displayed every two bars.
[0045]
First, in step S1, the drawing position of a musical score such as a note excluding lyrics is calculated. Here, if the performance tempo is fast, the time interval of the quantization timing is expanded (decreasing the resolution) to generate a score composed of notes with a long note length, while the performance tempo is slow In such a case, the calculation is performed so as to generate a musical score composed of notes with a short note length by narrowing the time interval of the quantization timing (increasing the resolution).
[0046]
Next, in step S2, the drawing position of the lyrics event, which is a feature of the present embodiment, is calculated. Although the calculation of the drawing position of the lyrics event will be described later, the lyrics are drawn as described with reference to FIGS. Further, in step S3, a score and lyrics such as a note of a new two-bar section are displayed on the LCD panel of the display unit 15, and the process proceeds to step S4.
[0047]
In step S4, it is determined whether or not the performance of the two-bar section has been completed. If it is determined that the performance of the two measures section has not yet been completed, this step S4 is repeatedly executed until it is determined that the performance of the two measures section has been completed. On the other hand, if it is determined that the performance of the two measures has been completed, the process proceeds to step S5.
[0048]
In step S5, it is determined whether or not the performance is finished. If it is determined that the performance has not ended yet, the process returns to step S1 to display the score with lyrics for the next two measures, and if it is determined that the performance has ended, this routine ends.
[0049]
FIG. 9 is a flowchart of a routine for calculating the drawing position of the lyrics event shown in FIG.
[0050]
First, in step S11, the drawing start position bp (number of dots) of the lyrics event Lrc [i] (number of ticks, character string, etc.) is calculated. Specifically, {“number of dots for one bar”} / {“number of ticks for one bar”} × the number of ticks of a lyric event is calculated.
[0051]
Next, in step S12, the character code determination process of the lyrics event Lrc [i] is performed. If it is Japanese (SHIFT JIS code), the process proceeds to step S13, and the quantization process A shown in FIG. If (ASCII code), the process proceeds to step S14, and a quantization process B shown in FIG.
[0052]
Next, in step S15, it is determined whether or not the processing for the lyric event for two measures has been completed. If it is determined that the processing for the lyric event for two measures has not been completed yet, the process proceeds to step S16, the variable i of the lyric event Lrc is incremented (i + 1), and the process returns to step S11. On the other hand, if it is determined that the processing for the lyric event for two measures has been completed, the process exits from this routine and proceeds to step S2 shown in FIG.
[0053]
FIG. 10 is a flowchart of the routine of the quantization process A executed when the character code of the lyrics event is Japanese.
[0054]
First, in step S21, the value wrk = (drawing start position bp of Lrc [i]) / (number of dots per character 2W) is obtained, and the process proceeds to step S22. In step S22, after the obtained value wrk is rounded off, the drawing start candidate position nCur of the lyzed lyrics event Lrc [i] is calculated (nCur = wrk × 2W). Thereby, the number of dots after the quantization process is calculated.
[0055]
Next, in step S23, nLast [i]> nCur is determined. That is, does the rightmost dot number nLast [i] of the last character string of Lrc [i−1] (previous character string) overlap with the drawing start candidate position (dot number) nCur of the lyrics event after the quantization process ends? It is determined whether or not. If it is determined that they do not overlap (nLast [i] ≦ nCur), the process proceeds to step S24, Cur [i] ← nCur is executed, and the drawing start candidate position Cur [i] is set to the next drawing start candidate position Cur. To do. On the other hand, if it is determined that they overlap (nLast [i]> nCur), the process proceeds to step S25 and Cur [i] ← nLast [i] is executed to set the drawing start candidate position Cur [i] as the last character. Set the number of dots nLast [i] at the right end of the row.
[0056]
In step S26, nLast [i + 1] ← Cur [i] + (number of characters of Lrc [i] × 2W) is calculated, thereby obtaining the number of dots nLast [i + 1] at the right end of the next character string, and this routine is executed. Exit.
[0057]
FIG. 11 is a flowchart of the routine of the quantization process B executed when the character code of the lyrics event is English.
[0058]
First, in step S31, a value wrk = (drawing start position bp of Lrc [i]) / (number of dots W per character) is obtained, and the process proceeds to step S32. In step S32, after the obtained value wrk is rounded off, the drawing start candidate position nCur of the lyzed lyrics event Lrc [i] is calculated (nCur = wrk × W).
[0059]
Next, in step S33, it is determined whether or not the lyric event Lrc [i] is two or more character strings. If it is determined that the character string is less than 2 (one character), the process directly proceeds to step S35. On the other hand, if it is determined that the character string is two or more, the process proceeds to step S34. In step S34, centering processing, that is, nCur ← nCur − ((number of characters of Lrc [i] / 2) × W) is performed, and the process proceeds to step S35.
[0060]
In step S35, nLast [i]> nCur is determined. That is, does the rightmost dot number nLast [i] of the last character string of Lrc [i−1] (previous character string) overlap with the drawing start candidate position (dot number) nCur of the lyrics event after the quantization process ends? It is determined whether or not. If it is determined that they do not overlap (nLast [i] ≦ nCur), the process proceeds to step S37. In step S37, it is determined whether or not the lyrics event Lrc [i-1] is a partial character string. If it is determined that the character string is not a partial character string, the process proceeds to step S39, Cur [i] ← nCur is executed, the drawing start candidate position Cur [i] is set to the next drawing start candidate position Cur, and the process further proceeds to step S40. On the other hand, if it is determined that the character string is a partial character string, the process proceeds to step S38. In step S38, it is determined whether nCur> nLast [i] + W, that is, whether an empty space has occurred in the middle of the alphabet character. If it is determined that there is no space, the process proceeds to step S40 via step S39 described above. If it is determined that there is a vacancy, the process proceeds to step S41, a hyphen “-” is inserted at the beginning of the character string of the lyrics event Lrc [i], and Cur ← nCur-W is executed in step S42, and the process proceeds to step S38. Insert a hyphen “-” until there is no room left by returning.
[0061]
If it is determined in step S35 that they overlap (nLast [i]> nCur), the process proceeds to step S36 to execute Cur [i] ← nLast [i], and the drawing start candidate position Cur [i]. To the number of dots nLast [i] at the right end of the last character string, and the process proceeds to step S40. In step S40, nLast [i + 1] ← Cur [i] + (number of characters of Lrc [i] × W) is calculated, thereby obtaining the rightmost dot number nLast [i + 1] of the next character string, and this routine is executed. Exit.
[0062]
In the present embodiment, the last blank (space) of the character string is not considered during the centering process.
[0063]
In the present embodiment, the range to be displayed at one time is a two-measure section. However, the present invention is not limited to this. For example, if enlargement / reduction of score display is selected by an operator (not shown), the score is enlarged. Changes such as displaying a two-measure section during display and displaying a four-measure section during reduced display may be performed.
[0064]
Further, the performance data may not be data such as automatic performance data to which time information is added, but may be score data for displaying a score.
[0065]
【The invention's effect】
As described above, according to the present invention, appropriate display can be performed with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a block diagram of a score display apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing how to adjust the display position of lyrics displayed in Japanese.
FIG. 3 is a diagram showing how to adjust the display position of lyrics displayed in English.
FIG. 4 is a diagram showing how to adjust the display position of lyrics in a two-measure section.
FIG. 5 is a diagram illustrating a state in which a space is filled with a specific symbol when a space is generated in the middle of an alphabetic character.
FIG. 6 is a diagram showing a musical score in which the display position of lyrics in one measure section is adjusted and the arrangement of the lyrics data.
FIG. 7 is a diagram showing a musical score in which the display position of lyrics is adjusted over two bars and an arrangement of the lyrics data.
FIG. 8 is a flowchart showing a drawing routine displayed on the display unit after the performance is started.
FIG. 9 is a flowchart of a routine for calculating a drawing position of a lyrics event shown in FIG. 8;
FIG. 10 is a flowchart of a routine of a quantization process A executed when the character code of the lyrics event is Japanese.
FIG. 11 is a flowchart of a routine of a quantization process B executed when the character code of the lyrics event is English.
[Explanation of symbols]
10 musical score display device 11 CPU
12 RAM
13 ROM
14 operator group 15 display 16 FDD
17 Data bus

Claims (3)

A score display section for displaying a score with lyrics;
A display control unit for displaying a score and lyrics on the score display unit based on song data including performance information and lyrics information;
The lyric information is provided with time information for each unit in units of a plurality of character strings, and the display control unit displays the character strings constituting the lyrics on the score display unit. A display candidate position of the display target character string is determined based on time information corresponding to the display target character string, and when the display target character string is displayed at the display candidate position, the display target character string is If they overlap, the display position moved to a position where they do not overlap is obtained, and if they do not overlap, the display target character string is displayed at the display position using the display candidate position as the display position. Is,
Further, in obtaining the display candidate position, the display control unit determines the display candidate position adjusted to any one of the division positions obtained by dividing the bar section of the displayed score with a predetermined resolution based on the time information. A musical score display apparatus characterized by obtaining a display position that is moved from the display candidate position by a delimiter unit divided by the resolution when obtaining the display position different from the display candidate position.   The display control unit obtains the display candidate position based on the time information so that a central character constituting a display target character string is displayed at a break position corresponding to the time information. Item 2. A musical score display device according to item 1. The lyric information includes information for identifying that a character string constituting the lyric information is a partial character string forming one word in combination with at least the next character string following the character string. And
In the display control unit, the display target character string is a character string that follows the immediately preceding partial character string, and one or more empty sections are generated between the display target character string and the immediately preceding partial character string. 2. A score display according to claim 1, wherein a symbol representing that one word is formed together with the immediately preceding partial character string is inserted into the empty section and displayed on the score display section. apparatus.

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