KR20020024277A - Method making digital music file jumping freely by section - Google Patents

Abstract

PURPOSE: A method for making a digital music file which is free to move by a division unit is provided to freely move to a desired bar during playing a music by separately inserting the data to a corresponding index after diving the music by a bar unit. CONSTITUTION: The system includes a controller(10), a display output device(20), an input device(30), a midi interface(40), an amplifier(50) and a speaker(60). The controller controls an output of electronic score by connecting to the display output device and processes an input signal of input device through the midi interface. The display output device outputs a midi file into an electronic score format and outputs a background image and words. The input device is an electronic instrument supporting midi, a keyboard, a mouse, a joy pad and so on. The midi interface connects to the controller and input device, converts the playing signal of input device into a digital signal and transmits the converted signal to the controller. The midi interface is equipped with a sound source module including a sound generating circuit by the synthesizing and sampling techniques. The sound from the sound source module is amplified by the amplifier and outputted through the speaker.

Description

Method for making digital music file jumping freely by section

The present invention relates to a method for producing a digital music file free of movement by division unit and a recording medium storing the method. The present invention relates to performances such as a measure in producing a digital music file used for a half-cycle or a digital song. The present invention relates to a method of making a digital music file free to move by one division unit so as to freely move from one performance unit to another by inserting an index by dividing a song by unit.

Digital music files are music files that can be played automatically through electronic devices. The MIDI standard file is a form of digital music file, and MIDI (MIDI, Musical Instrument Digital Interface) is an international standard for compatibility of data transmitted / received in transmitting performance information of electronic musical instruments as digital signals. Most electronic instruments have the ability to send and receive data based on these MIDI standards.

In recent years, more and more data has been shared with PCs to control electronic instruments with PCs. In order to control an electronic musical instrument equipped with a MIDI terminal with a PC, it is necessary to convert a signal used inside the PC into a MIDI signal for the electronic instrument. A MIDI interface is required to do this. If you have a program that provides this MIDI interface, you can make music using a stand keyboard or other input devices. And with a program and a sound card, you can play a MIDI-style piece of music. In addition, the field of computer music using MIDI is rapidly developing through grafting with video as well as music.

A digital song half cycle or instrument uses MIDI to deliver the performance data contained in a MIDI specification file as a digital signal. You can use the digital song half cycle to sing along with the accompaniment without the performer, or you can sing along with the player's performance with a player connected to a MIDI electronic instrument. In addition, the song half cycle or the player can be combined with an image output device such as a TV monitor to present lyrics or scores of songs to be sung.

When you sing or play along with a rhythm or instrument, you may want to repeat a certain section or skip a section that you do not want to sing. In other words, there is a need for a method of freely moving directly to a measure to be moved. However, the basic MIDI standard file that is frequently used has only information that generates or stops the sound according to the order in which the notes are sequentially arranged based on the beat, tempo, etc. of the song. In addition, the half-cycled song based on these basic MIDI file files can only be played in such a sequential manner, or moved to some specific section such as 1 or 2 sections. That is, because there are divisions of sections and deemed units of music, but not divisions of measures (sections), it was not possible to move freely to the measures you want to move and to skip a section that would not be repeated or called. In addition, a method for generating an index by dividing into such measure units has not been suggested.

Also, if the performance information such as beat, tempo, voice control data, etc. changes when moving from one point of the song to another point, you should be able to recognize the changed performance information from the moved point. The rhythm of the song should be able to connect naturally without being disturbed.

The present invention is to solve the above problems, by dividing a song of a digital music file into a unit of a predetermined length, for example, measures, to insert the data into the index of the position separately to move to a measure that you want to move during the performance of the song An object of the present invention is to provide a method of making a digital music file free of movement by division unit that can be freely moved.

In addition, an object of the present invention is to provide a method for producing a digital music file freely moveable by division unit that can generate electronic musical score by combining the song information and lyrics information of the digital music file inserted into the index for each division unit.

In addition, the present invention can recognize the changed performance information at the moved point when the performance information such as beat, tempo, voice control data, etc. changes when moving from a specific point of the song to another point, the rhythm of the song is naturally undisturbed An object of the present invention is to provide a method for producing a digital music file free of movement by division unit which can be connected.

1 is a schematic configuration diagram of a system to which a method for producing a digital music file freely moved per division unit according to an embodiment of the present invention is applied;

2 is a flowchart of a method of making a digital music file free of movement per division unit according to an embodiment of the present invention.

Figure 3a is a diagram showing the electronic score generated in the electronic score generation step and output to the screen output device.

Figure 3b is a diagram showing the electronic score output to the screen output device when the section is repeated by pointing to a specific point

* Explanation of symbols for main parts of the drawings

10: control unit 20: screen output device

30: input device 40: MIDI interface

50: amplifier 60: speaker

In order to achieve the above object, the present invention provides a digital music file opening step of importing a digital music file in which performance data of at least one song is stored; A division unit determination step of determining a length of a performance unit to be divided in a song; A division unit calculation step of calculating a length of the division unit; An index insertion step of generating and inserting an index for each point where the length of the division unit has elapsed; Digital music file generation step of generating a new digital music file is divided into each division unit to insert the index; provides a method for producing a digital music file free to move by each division including a.

In addition, the present invention calculates the length of one measure by multiplying the timebase indicating the length of one beat in the division unit calculation step and multiplying the length of one measure by the number of measures included in the division unit. Or a timebase indicating the length of one beat is multiplied by the number of timebases included in the division unit.

In addition, the present invention is a digital music file is a MIDI standard file, the number of measures included in the division unit or the number of timebases included in the division unit is characterized in that the movement of the digital music file freely per division unit To provide.

In addition, the performance information of the beat, tempo, tone control data, etc. of the song is variable, and even when the performance information is changed in the middle of the song by inserting the variable values necessary for the performance of the song for each measure when inserting an index. The present invention provides a method of making digital music files free of movement by each division unit that can recognize variable values required for performance of the division unit to be moved.

In addition, the present invention is a method for producing a digital music file freely moveable by division unit further comprising an electronic score generation step of generating electronic score by combining the song information stored as MIDI data of the MIDI standard file and the lyrics information stored as text data To provide.

Hereinafter, with reference to the drawings will be described in detail a method of producing a digital music file free movement per division unit according to an embodiment of the present invention. In this embodiment, the division unit is one measure, and the digital music file is a MIDI standard file. However, the present invention is not limited thereto.

1 is a schematic block diagram of a system to which a method for producing a digital music file freely moved by division unit according to an embodiment of the present invention is applied.

Referring to FIG. 1, a system to which a method of making a digital music file free to move per division unit according to an embodiment of the present invention is applied to a controller 10, a screen output device 20, an input device 30, and a MIDI interface. 40, an amplifier 50, and a speaker 60.

The controller 10 is connected to the screen output device 20 to control the output of the electronic score, and receives and processes the input signal of the input device 30 through the MIDI interface 40.

The screen output device 20 is a device capable of outputting a MIDI standard file in the form of electronic score, and a monitor, an LCD screen, a screen, a TV, and the like are used. In addition, the screen output device 20 may output a background image or lyrics according to the song accompaniment.

The input device 30 is a device that can receive a user's input for playing, and an electronic instrument, a keyboard, a mouse, a joy pad, etc., which support a known MIDI, are used. The input device 30 receives a playing operation according to the playing order for each note of the electronic score displayed on the screen output device 20.

The MIDI interface 40 connects the control unit 10 and the input device 30 to convert a performance signal of the input device 30 into a digital signal and transmits the digital signal to the control unit 10. MIDI interface 40 has a sound source module (not shown in the figure) is built in, the sound source module has a sound generating circuit for generating sound by synthesis or sampling techniques. Sound generated from the sound source module is amplified by the amplifier 50 and output through the speaker 60.

2 is a flowchart illustrating a method of making a digital music file free of movement per division unit according to an embodiment of the present invention.

Referring to Figure 2, according to an embodiment of the present invention, a method for producing a digital music file free of movement per division unit may include: opening a digital music file, determining a division unit, calculating a division unit, inserting an index, generating a digital music file And electronic musical score generation step.

First, a digital music file already produced or newly produced, in this embodiment, the MIDI standard file is opened (S10). The MIDI specification file contains song information stored as MIDI data. Normally, the instrument information can be output from the sound source module using this song information, and the score and the code of the instrument can be displayed on the screen output device 20. The length of the unit to insert the index into the song, that is, the division unit is determined (S12). The division unit can be one measure or two or more passages, or a timebase unit described later. In this embodiment, one measure is a division unit.

After that, the length of the division unit, that is, the length of one measure is calculated, and the timebase is multiplied by the beat to become the length of one measure (S16). Here, the timebase means the number of times the length of one beat is divided as ticks per quarter note based on the 4/4 beat. The larger the timebase, the more detailed and natural the sound, usually 48 to 120. Thus, if the timebase is 120 and the beat of the song is 4/4, the length of one measure is calculated as: 120 (timebase) × 4 = 480.

The length of one measure is calculated by multiplying the length of one measure by the number of measures included in the divided unit (S18). If the subunit is two measures, the number of measures included in this subunit is two, so the length of the subunit is calculated as 'length of one measure × 2'. In this embodiment, since the division unit is one measure, the length of the division unit is calculated as 'length of one measure x 1'.

When the length of the division unit is calculated as described above, the position of each point where the length of each division unit passes is generated and an index is generated and inserted (S20). An index contains a key or a reference symbol to locate a specific content in a file, and indicates a point at which the length of the division unit elapses to be able to move freely from one point of a song to another. do. In this embodiment, an index is generated and inserted every one measure.

On the other hand, the MIDI standard file is also set with variable values necessary for the performance specified for performance information such as beat, tempo, and tone control data. The tone control data includes the type of instrument, the pitch of the instrument, the tone of the instrument (contrast for each note), and the like. Performance information, such as time signature, tempo, and tone control data, may change during performance of a song. When inserting indexes by dividing into measures, insert these variable values for each measure. When inserting indexes, the variable values necessary for the performance are inserted together, so when moving from one point of the song to another, even if the performance information such as the beat, tempo, and voice control data changes, the variable values required for the performance of the moving measure can be recognized together. .

This can also be applied when you are dealing with two or more songs in succession in a performance program. That is, even if the performance information such as the time signature, tempo, and voice control data of each song is different, when variable values necessary for performance are inserted at the time of index insertion, connection from one song to the next, or from one measure to another When moving to measure, you can recognize the parameter values required to play.

The inserted index is indicated by the display method such as the measure number or the sign in the electronic score. The player can move freely to the measure he wants to move by pointing to the measure number or sign. When moving from one measure to another, in order to ensure that the rhythm of the song is not distracted and connected naturally, when you receive a movement signal, you can finish the corresponding measure you are playing and move to the indicated measure, or break it by timebase to finish the beat of the measure. It is desirable to move to the indicated measure.

An example of data of a general MIDI standard file in which no index is inserted for each measure and a MIDI standard file in which variable values necessary for indexing and playing for each measure are inserted according to the present invention will be described with reference to the table.

Metatrack 0 0 tempo 140 One 0 meter 4/4 2 480 tempo 120 3 480 meter 4/4 Performance data track address time Sequencing Data Duration 0 11 c3 04 One 65 b3 63 01 2 67 b3 62 0a 3 70 b3 06 4d 4 120 93 45 49 277 5 240 93 51 47 192 6 360 93 4e 46 162 7 480 93 4a 3d 129 8 600 93 4c 3d 43 9 720 93 4e 34 126 10 840 93 4e 34 126 11 960 c3 05 12 960 93 4b 35 120

Measure index data Measure 1 offset 0 Measure 2 offset 9 Measure 3 offset 19 Performance data track address time Sequencing data Duration 0 0 tempo One 0 meter 2 11 c3 04 3 65 b3 63 01 4 67 b3 62 0a 5 70 b3 06 4d 6 120 93 45 49 277 7 240 93 51 47 192 8 360 93 4e 46 162 9 480 tempo 120 10 480 meter 4/4 11 480 c3 04 12 480 b3 63 01 13 480 b3 62 0a 14 480 b3 06 4d 15 480 93 4a 3d 129 16 600 93 4c 3d 43 17 720 93 4e 34 126 18 840 93 4e 34 126 19 960 tempo 120 20 960 meter 4/4 21 960 c3 05 22 960 b3 63 01 23 960 b3 62 0a 24 960 b3 06 4d 25 960 93 4b 35 120

Table 1 shows an example of data from a typical MIDI specification file that shows a performance data track for any two measures of a particular song of two measures, and a metatrack containing variable values for performance information such as tempo and time signature. . Here the timebase is 120. Referring to Table 1, the data indicated by 0 and 1 in the metatrack indicates the tempo and time signature of the first measure, respectively, and the data indicated by 2 and 3 indicates the tempo and time signature of the second measure, respectively. In addition, in the performance data track, addresses 0, 7, and 11 indicate the beginning of the first measure, the second measure, and the third measure, respectively.

On the other hand, Table 2 is an example of the data of the MIDI standard file in which the variable values necessary for the index and performance are inserted for each measure according to the present invention. Here the timebase is 120. Referring to Table 2, in the measure index data, the first measure, the second measure, and the third measure are additionally inserted data indicating the positions of the first measure, the second measure, and the third measure, respectively. In addition, in the sequencing data, addresses 0, 1, 9, 10, 19, and 20 represent the added tempo and time signature data of one measure, two measures, and three measures, respectively, and addresses 11 to 14 and addresses 21 to 24 each represent two measures. And additionally inserted data in subsection 3. The measure index data can be placed anywhere in the newly created MIDI specification data, and the tempo and time signature data (addresses 0 and 1, 9 and 10, 19 and 20) of the data included in the sequencing data are actually used. The cases are duplicated for each track, so they can be placed only on a certain track or co-located at the position of the measure index data.

The tempo and time signature of the three measures are not specified in the metatrack, but are added to the newly created data because the specified data of the previous measure is retained during actual performance. In addition, the tone data designated as 'c3 04' at time 11 of address 2 is changed to 'c3 05' at time 960 at address 21, and thus is designated as the changed tone.

After the index insertion step, a new MIDI standard file is inserted (S22). The newly created MIDI standard file is the basis for generating electronic score by combining the song information stored as MIDI data and the lyrics information stored as text data (S24). The electronic score generated using the information is output to the screen output device 20 (FIG. 1) (S26). 3A is a diagram illustrating electronic scores generated in the electronic score generation step and output to the screen output device. Referring to FIG. 3A, the generated electronic score includes notation, lyrics, and performance code, and the measure number is displayed at each start point of each measure.

On the other hand, Figure 3b is a diagram showing the electronic score output to the screen output device when the section is repeated by pointing to a specific point. Referring to Fig. 3b, it can be seen that the sections from measure numbers 51 to 52 are repeated in this song. In the case of the interval repetition, the output method of the electronic score can be applied to various methods such as displaying all the repetitive sections on the sheet music or displaying only the measure number in the repeated section.

As mentioned above, although the method of making a digital music file which can be moved per division unit according to the present invention has been described with reference to one embodiment, the present invention is not limited thereto.

In the above embodiment, the division unit was one measure, but in another embodiment, the division unit may be more than two measures.

It is also possible to insert an index by dividing it into smaller units, such as timebase units. In this case, in the division unit calculation step, the length of the division unit is calculated by multiplying the timebase by the number of timebases included in one division unit. For example, if the division unit is one timebase, the length of the division unit is calculated as 'length of one timebase × 1'. In this case, the index is inserted for each division unit, and the variable value for performance is inserted for each measure.

According to the present invention, by dividing a song of a digital music file into a unit of a predetermined length, for example, by measure, and inserting an index, a digital music file can be freely moved by division unit that can move freely to a measure to be moved during performance of the song. Provide a method.

In addition, the present invention provides a method for producing a digital music file freely moveable by division unit that can generate the electronic score by combining the song information and lyrics information of the digital music file inserted into the index for each division unit.

According to the present invention, when performance information such as beat, tempo, voice control data, etc. changes in the middle of a song, when the moving unit moves from one point of the song to another point, the variable value required for the performance of the division unit to be moved can be recognized. It provides a portable digital music file production method.

In addition, the present invention provides a method for producing a digital music file free to move by the division unit that can be naturally connected without moving the rhythm of the song when moving from a specific point of the song to another point.

According to the present invention, since the music to be played can be divided by division, in particular by measure, movement to the front and back measures is free, and it is effective not only when repetition of a specific section, but also the measure editing and the sheet music expression are free. In addition, when two or more songs are included in the MIDI file, the song and the song can be directly connected in units of measure, so that the connection from one song to the next can be made smoothly.

Claims (5)

A digital music file opening step of importing a digital music file storing performance data of at least one song; A division unit determination step of determining a length of a performance unit to be divided in the song; A division unit calculation step of calculating a length of the division unit; An index insertion step of generating and inserting an index for each point at which the length of the division unit elapses; And a digital music file generating step of generating a new digital music file having an index inserted into each division unit. The method of claim 1, In the division unit calculation step, the division unit is calculated by multiplying a timebase indicating the length of one beat by a beat and calculating the length of one measure and multiplying the length of the measure by the number of measures included in the division unit, or by one beat. And a timebase indicating the length of the base unit is calculated by multiplying the number of timebases included in the division unit. The method of claim 2, And the digital music file is a MIDI standard file, and the number of measures included in the division unit or the number of timebases included in the division unit is one. The method according to claim 1, wherein The performance information of the beat, tempo, tone control data, etc. of the song is variable, and when the index is created and inserted, variable values necessary for playing the song are inserted for each measure to change the performance information in the middle of the song. Easily moveable digital music file for each division unit that can recognize the variable value required for the performance of the division unit to be moved. The method according to claim 1, wherein And an electronic score generation step of generating electronic scores by combining song information stored as MIDI data of the MIDI standard file and lyrics information stored as text data.