JP4273202B2 - Music reproduction method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for selectively reproducing feature sections such as rust sections in music.
It is about.
[0002]
[Prior art]
Conventionally, in the research field of music information processing, there have been many studies on music search and music understanding, but no research focusing on listening to music has been done. At present, when “listening” music recorded on a compact disc (CD) or the like at a record store, a previewer often selects only the part he / she wants to listen to while listening to it. This is because the main purpose of the audition is to determine in a short time whether or not it is the music that he / she was looking for and the favorite music. For example, in the case of popular music, etc., there are sections characterized by the structure of the music, such as the chorus (refrain) section, which is the most prominent theme part of the music, and the melody section that is repeatedly played. It is often judged by auditioning (hereinafter referred to as a music structure feature section). Therefore, the listener listens to the intro for a while and then searches for a music structure feature section such as a chorus section or a repeat section, and presses the fast-forward button repeatedly to skip the middle and play the music structure feature section. To do.
[0003]
As for the technology for detecting the chorus section in the music, the inventor of the present application entitled “Real-time music scene description system: chorus section detection method”, “Information Processing Society of Japan Music Information Science Research Report” (non- (Patent Document 1) 2002-MUS-47-6 (Vol. 2002, No. 100, pp. 27-34).
[0004]
[Non-Patent Document 1]
"Information Processing Society of Japan Music Information Science Research Report"
2002-MUS-47-6 (Vol. 2002, No. 100, pp. 27-34)
[0005]
[Problems to be solved by the invention]
However, conventional music CD listening machines have no function to support such listening-specific listening methods. The listening device has playback operation buttons equivalent to those of a normal CD player, but only the fast forward and fast reverse buttons can be used to search for rust. On the other hand, digital listening devices that have recently begun to be introduced into CD stores can play back from a hard disk or a network from hundreds of thousands of songs stored in a compressed format such as MP3. However, since only the short section (usually 45 seconds) at the beginning of the music is recorded by being cut out mechanically, the listener cannot always listen to the music structure feature. In recent years, although the number of songs with a music structure that starts with chorus has increased in Japanese popular music, the inventor's survey found that Japanese popular music hit charts (single top in the weekly rankings from January to December 2001) 20 songs), only about 20% of songs started rusting within 40 seconds after the music started.
[0006]
An object of the present invention is to provide a music playback method and apparatus capable of easily playing back a music structure feature section using a music acoustic data playback apparatus by selection using an interface, and an interface and program used for the apparatus. is there.
[0007]
Another object of the present invention is to provide a music playback method and apparatus capable of changing the playback position by a music acoustic data playback device to an arbitrary music structure feature section by selection using an interface during playback of acoustic music data, and the device. It is to provide an interface and a program used in the apparatus.
Another object of the present invention is to provide a music reproducing method and apparatus capable of easily reproducing a chorus section in a music using a music acoustic data reproducing apparatus, and an interface used for the apparatus.
[0008]
Another object of the present invention is to provide a music reproducing method capable of reliably specifying a chorus section in a music.
[0009]
Another object of the present invention is to provide a music playback method and apparatus capable of visually confirming the distribution status of music structure feature sections and the playback status of music acoustic data, and an interface used in the apparatus.
[0010]
Another object of the present invention is to provide a music reproducing method and apparatus capable of visually distinguishing the presence status of a rusting section and a repeated section, and an interface used for the apparatus.
[0011]
Another object of the present invention is to provide a music playback method and apparatus that can selectively play back a music structure feature section by an operator operating a selection button, and an interface used in the apparatus.
[0012]
Another object of the present invention is to provide a music structure feature section extraction method that can easily extract music structure feature sections from statistical data.
[0013]
[Means for Solving the Problems]
The music reproducing method of the present invention for reproducing music acoustic data using a music acoustic data reproducing apparatus for reproducing music acoustic data performs the first to third steps. Here, the music sound data includes various reproducible sound data such as an analog sound signal, a digital sound signal, MIDI data (standard MIDI file), and may be either compressed or uncompressed. In the case of compressed data, the format of the compression format is arbitrary. In addition, “a plurality of music structure feature sections” to be described later includes the above-described chorus sections and / or repeating sections. Of course, only the chorus section or the repeated section may be a plurality of music structure feature sections.
[0014]
In the first step, a plurality of music structure feature section designation data for designating a plurality of music structure feature sections is prepared in advance for music acoustic data to be reproduced. The plurality of music structure feature section designation data is data relating to the start position and end position of the music structure feature section. For example, the start position and end position of the music structure feature section are expressed as position data in the target music acoustic data, or position data expressed by the time required to reach that position after actually starting the performance. be able to. The plurality of music structure feature section designation data may be combined with music acoustic data, that is, set, but may exist as data different from music acoustic data. In this way, a person who has already obtained music acoustic data can later obtain music structure feature section designation data corresponding to the music via a network or the like. If multiple music structure feature section designation data is combined with music acoustic data, when music acoustic data is downloaded, a plurality of music structure feature section designation data is inevitably downloaded, and the correspondence between the two data This is convenient because there is no need to consider it.
[0015]
A method for extracting a plurality of music structure feature sections is arbitrary. For example, the rust section detection method described in Non-Patent Document 1 previously announced by the inventor may be used. Further, a plurality of music structure feature sections may be specified (labeled) by a person while reproducing music acoustic data, or a plurality of music structure feature sections may be specified using a dedicated labeling editor. In addition, a plurality of music structure feature sections are specified based on statistical data of reproduction behavior when a plurality of listeners play the target music acoustic data, and a plurality of music structure feature sections are specified for specifying the plurality of specified music structure feature sections. Music structure feature section designation data may be created. In this case, for example, a section with a large number of trials or playbacks by a plurality of listeners (a section larger than a predetermined number) can be specified as the music structure feature section. In this case, data of a section where the number of reproductions by a plurality of test listeners is large may be collected from a plurality of music playback devices for test listening connected to the network. In this way, a large amount of data can be obtained easily. The obtained data may be visually recognized as a histogram, and a plurality of music structure feature sections may be specified from the histogram. This facilitates the identification of the music structure feature section from the statistical data. Based on the trial listening of such a person, the music structure characteristic part can be easily extracted from the music whose detection of the part called rust is difficult from the music structure.
[0016]
In the second step, an interface for selecting an arbitrary music structure feature section from a plurality of music structure feature sections is prepared. This interface relates the operator and the device, and it is sufficient to include at least a portion that is selected and operated by the operator and a function that transmits a selection result. Therefore, the simplest interface can be constituted by a selection button comprising an analog or digital switch. When an interface is configured with only selection buttons, the selection buttons are operated while listening to music to be played. With only the selection button, it is not possible to know how many music structure feature sections exist in which part of the music acoustic data. Therefore, there is a possibility of operating the selection button more than necessary. In addition, when there are a plurality of types of music structure feature sections, it is not possible to intentionally listen to the same type of music structure feature sections using only the selection button.
[0017]
Therefore, in order to solve such a problem, as the interface prepared in the second step, the length of the music sound data is displayed by image display using a time axis, and the music sound data reproducing apparatus is also connected to the music sound data. What is necessary is just to use what has an image display part which displays the reproduction | regeneration position of the music acoustic data which is reproducing | regenerating data, and several music structure characteristic area by the image display using a time axis. By using such an interface, it is possible to visually recognize the positional relationship or temporal relationship between the current playback position and the plurality of music structure feature sections by viewing the display on the image display unit. Accordingly, it is possible to arbitrarily select a music structure feature section at an arbitrary location while viewing the display on the image display unit. If the performance time of the music is long, the display for the entire performance time may not be displayed on one screen. In such a case, it is of course possible to display a display corresponding to a part of the performance time on the screen and change the screen in a scrolling manner with the passage of time.
[0018]
In the case where an image display unit is provided in the interface, when the plurality of music structure feature sections are composed of a plurality of chorus sections indicating the chorus part of the music and a plurality of repeat sections indicating the repetitive part, It is preferable to distinguish and display the rust section and the plurality of repeated sections. In this way, it becomes easy to arbitrarily select the chorus section and the repeated section while viewing the image display.
[0019]
The interface also has one or more selection buttons operated by the operator to select an arbitrary music structure feature section from a plurality of music structure feature sections. As this selection button, an analog type selection button operated by a person's finger, a type selection button (image display button) for determining on / off by clicking the display of the button displayed on the display screen with a human finger or cursor ) And various selection buttons such as a selection button of a type for determining selection by voice recognition. In particular, it is preferable that one or more chorus section selection buttons for selecting only the chorus section from the plurality of music structure feature sections are arranged on the interface on the one or more selection buttons. When such a dedicated selection button is arranged, even a person who does not have special knowledge can easily perform the reproduction of the chorus section, so that versatility is very high. Further, it is preferable that the one or more chorus section selection buttons include a first chorus section selection button for selecting a previous chorus section and a second chorus section selection button for selecting a subsequent chorus section. This not only increases the degree of freedom of selection, but also makes it possible to reproduce the chorus section repeatedly. The one or more selection buttons include a first repetition section selection button for selecting a previous repetition section and a second repetition section selection button for selecting a subsequent repetition section when selecting a plurality of repetition sections. May be. In this case as well, the degree of freedom of selection is increased, and it is possible to repeatedly reproduce the repeated section.
[0020]
In the third step, after the reproduction of the music acoustic data is started by using the music acoustic data reproducing apparatus, the music structure feature section designation data corresponding to an arbitrary music structure feature section selected by the operator using the interface is used. Then, the playback position of the music sound data by the music sound data playback device is changed to an arbitrary music structure feature section. That is, even during the performance, when a command for changing the playback position is input from the interface to a specific music structure feature section, the playback position is changed based on the command.
[0021]
Of course, only when an arbitrary music structure feature section is selected on the interface, the selected section may be reproduced. In that case, in the third step, the arbitrary music structure feature is stored in the music acoustic data playback device based on the music structure feature section designation data corresponding to the arbitrary music structure feature section selected by the operator using the interface. What is necessary is just to make it reproduce | regenerate an area.
[0022]
A music playback device for carrying out the method of the present invention has a music acoustic data playback device for playing back music acoustic data, and plays back an arbitrary music structure feature section selected from a plurality of song structure feature sections in the song It has a function to do. The music reproducing apparatus of the present invention further includes an interface, a music structure feature section designation data storage means, and designation data provision means. The interface has a function of selecting an arbitrary music structure feature section from a plurality of music structure feature sections. The music structure feature section designation data storage means stores music structure feature section designation data for designating a plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced. Then, the designation data giving means gives music structure feature section designation data for designating an arbitrary music structure feature section selected by the interface to the music sound data reproducing apparatus. The music acoustic data reproducing apparatus is configured to change the reproduction position to the music structure feature section designated by the music structure feature section designation data given from the designation data giving means. In the apparatus of the present invention, an arbitrary music structure feature section selected by the interface can be reproduced even during the reproduction of the music. Even if the music is not being played back, any music structure feature section selected by the interface can be played back. If the music structure feature section designation data is attached to the music acoustic data, the music structure feature section designation data storage means may read and store the music structure feature section designation data attached to the music acoustic data.
[0023]
Further, it may further comprise a feature section designation data generating means for automatically extracting a plurality of music structure feature sections in the music from the music acoustic data and creating music structure feature section designation data. If such a means is provided, the present invention can be easily applied even when an existing music piece is reproduced.
[0024]
It should be noted that the present invention uses a device comprising a computer, a display that operates based on a command from the computer, and a music / acoustic data playback device that plays back music / acoustic data according to a command from the computer. It can also be specified as a program for causing the computer to realize a function of reproducing an arbitrary music structure feature section selected from the plurality of music structure feature sections. The program includes a function for configuring an interface for selecting an arbitrary music structure feature section from a plurality of music structure feature sections on the display, and the plurality of music structures predetermined corresponding to the music acoustic data to be reproduced. A function constituting music structure feature section designation data storage means for storing music structure feature section designation data for designating a feature section, and the music structure feature for designating the arbitrary music structure feature section selected by the interface A function that constitutes a designation data giving means for giving section designation data to the music sound data reproducing device, and the music structure feature section designated by the music structure feature section designation data given from the designation data giving means is reproduced. And a function of giving a command to the music sound data reproducing device. And a configuration to realize the data.
[0025]
The function of configuring the interface on the display forms one or more selection buttons including a chorus section selection button operated by the operator in order to select chorus sections included in a plurality of music structure feature sections. It preferably has a function.
[0026]
By using the present invention, it is possible to obtain a music sampler equipped with a “rusting out” function (rusting section selection button). By simply pressing the chorus section selection button, the test listener can jump the playback to the beginning of the chorus section (fast forward), and is freed from the troublesome work of searching for the chorus section. Furthermore, reproduction can be jumped to the beginning of the repeat section of the next music structure by estimating or preparing the repeat section in the music other than the chorus in advance.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the concept of the embodiment of the music reproducing method of the present invention. In these embodiments, the music playback position is automatically jumped to the head of a section having a meaning in the music structure (a chorus section and a repeated section). Basically, the music structure of music sound data such as music sound signals and standard MIDI files is analyzed in advance, and the part of interest (user part) is repeatedly played in that part. Part), that is, a function capable of automatically jumping to a music structure feature section. The music acoustic data may be prepared on a music player such as a local electronic computer (server) or a CD player, or may be downloaded from a network.
[0028]
[Explanation of the first step]
Specifically, a plurality of music structure feature section designation data for designating a music structure feature section in the music is prepared in advance for the music acoustic data to be reproduced (first step). Most simply, a plurality of music structure feature section specification data for specifying a plurality of music structure feature sections based on a result of specifying a plurality of music structure feature sections while reproducing music acoustic data. Create Since this work is a manual work, it takes time, but actually humans (for example, not only ordinary people but also experts and music producers who have a deep understanding of music) judge music structure feature sections. In order to specify, for example, it is possible to obtain necessary music structure characteristic section designation data even for a music whose chorus section is difficult to understand. In the present embodiment, position data that represents the start position and end position of each of the plurality of music structure feature sections as the time required to actually reach the position after the performance is started.Or position data in music sound dataIt expresses as In this embodiment, a plurality of music structure feature section designation data is combined with music acoustic data to form one set.
[0029]
In the embodiment of FIG. 1, the music structure feature section is specified by using any one of the automatic chorus section detection method, the manual chorus section labeling method, and the tester behavior analysis method. Each method will be described below.
[0030]
[Automatic rust detection method]
In this method, a list of start points and end points of a chorus section or a repeated section in a music is automatically detected. This method can be applied to a large number of music because it does not require manual labor. In the automatic detection, an error may be included in the detection result. However, in practice, it is more convenient than a conventional listening device because the listener can find the playback position even if the accuracy is not perfect. The technique for this purpose is, for example, entitled “Chain section detection method in music acoustic signal” (Masataka Goto / Japanese Patent Application No. 2002-309519) or “Real-time music scene description system: Chorus section detection method”. It is described in a paper published by the inventor in 2002-MUS-47-6 (Vol. 2002, No. 100, pp. 27-34) of "Study Report of the Society for Music Information Science" (Non-Patent Document 1). Specifically, a technique for automatically detecting a list of start points and end points of a chorus section or a repeated section in a music piece in this method can be used. Prior to the above method, there was a method that always cuts and shows a certain part of the rust that appears many times in the sound signal of the music, but the start and end of the rust section I didn't know the point and couldn't handle the chorus modulation. The technique described in the paper published by this inventor is to comprehensively detect all the chorus sections that are repeated in the music by examining the interrelationships between various repeat sections, and the starting point and ending point thereof. Can be estimated. In addition, by introducing a similarity that can be determined to be repeated even after modulation, it is possible to detect a chorus section with modulation.
[0031]
[Manual chorus section labeling method]
On an editor capable of labeling rust and music structure, a human specifies it manually while listening to music. High accuracy but labor and time. This manual labeling is also effective for music and music genres that are difficult to detect automatically. It is also possible to manually correct the result on the editor using the result of automatic rust section detection. As an editor for this, the inventor can divide music and label rust, first melody (A melody), second melody (B melody), intro, interlude, ending, etc. for music structure labeling Developed an editor. The editor screen is shown in FIG. The horizontal axis shown in the upper half of this figure represents the entire music on the time axis (sec). The top mini-window is the power change, the second mini-window is the labeling result of each part of the music, the top row of the third mini-window is the list of rust sections, and the bottom 5 rows represent the repetitive structure. The lower half displays the enlarged labeling result of each part of the music while turning back the time axis of the whole music. On this editor, the user edits information on the position of the cursor represented by a vertical bar display. The playback / stop of the music can be freely controlled, and the cursor indicates the playback position of the music. The user can move the cursor freely, repeatedly hear the sound before and after the cursor, and put a break of each part of the music at an appropriate location. Then, the section between the breaks is labeled. In addition, this editor has an efficient work environment, such as having a function to quickly perform labeling work by labeling beats and bar breaks in advance and moving the cursor in beats and bars on the editor. Is provided. As an editing result on the editor, a list of the start point and end point of the chorus section and the repeat section in the music can be obtained.
[0032]
[Analyzer Analysis Method]
In this method, a part that has been listened to by a large number of past listeners is recorded, and an interval in which many listeners have listened is analyzed. The section thus obtained is estimated on the assumption that it is a chorus section (section in which the listener is interested). In addition to popular music, a section that has been frequently listened to is often a section that a typical listener wants to listen to, which is effective for a wide variety of music genres. Until this method is used repeatedly, this method can provide only functions that are not much different from those of conventional listening devices, but has the advantage of not requiring music content analysis or labeling in advance. It is also possible to combine with the above two methods. Specifically, this is done as follows. Basically, a histogram of the number of times of reproduction of each part in the music is created, and a part that is often reproduced is obtained from the histogram, and it is estimated that it is a chorus section. Examples of histograms are shown in FIGS. First, start with no description at all, and then use the typical playback operation buttons as before (press the fast-forward button many times to skip the middle), and the listener will search for the chorus section etc. listen. At that time, the entire music is divided into very short sections (for example, 10 msec), and the number of reproductions for each section is counted (a histogram is created). Normally, when the head of a chorus is found, the listener listens until the entire chorus has finished playing. If many listeners do this, the section that many listeners played with interest is long on the histogram. It can be obtained as a high-frequency section (a section that has been reproduced a lot) over the section. As an extension, when the number of playbacks is counted, a weight is added according to the length of a section that is continuously played back without button operation, and a larger value is added to the histogram as playback is longer. . As a result, only a short section is reproduced during the search for chorus, so that a small value is added to the histogram, and when a chorus is found, a large value is added to the histogram to reproduce a long section. In this way, the value of the chorus section in the histogram can be increased, and the chorus section can be obtained more appropriately.
[0033]
Note that the above process is not only executed by a single listening device, but also by connecting the listening devices to a wide area network such as the Internet, and how the listeners (users) around the world operate the same music. You can also add a histogram of what you listened to. As a result, the behavior analysis results of more listeners are reflected in the histogram, and the accuracy of obtaining the chorus section is improved. In the case of the tester behavior analysis method, it is effective to visualize the histogram, and it is possible to operate while visually observing where the previous tester listened well.
[0034]
To use the result of the listener behavior analysis method, a threshold having a histogram as shown in FIG.(Horizontal line in the figure)It is convenient to explicitly display the above as a chorus section (section in which a typical listener is interested) explicitly above or below the histogram. If the present invention is applied to the section defined in this way as a music structure feature section, the user can jump the playback position according to the selection by the interface in the same manner as the music structure feature section obtained by other methods. . Alternatively, as shown in FIG. 2C, as another display method instead of such a section, a smoothed function is obtained by smoothing the histogram, and a function (derivative) obtained by first-order differentiation in the time axis direction is obtained. Alternatively, a line segment (a plurality of lines) may be displayed at a time when the threshold is exceeded. These line segments represent points where the histogram has suddenly increased, and represent points where many listeners begin to listen (the start times of sections in which typical listeners are interested). Even in this case, when the user selects line segments through the interface, the reproduction position corresponding to the time of the line segments can be jumped and reproduced.
[0035]
[Explanation of the second step and the third step]
Next, in the method of the present embodiment, an interface for selecting an arbitrary music structure feature section from a plurality of music structure feature sections is prepared (second step). This interface will be described in detail later. Then, after starting the reproduction of the music acoustic data using the music acoustic data playback device, when the operator selects an arbitrary music structure feature section using the interface, the music structure feature corresponding to the selected arbitrary music structure feature section Based on the section designation data, the music acoustic data playback position by the music acoustic data playback device is changed to an arbitrary music structure feature section (third step). This change in the playback position is a jump to the head of a so-called music structure feature section. In the embodiment of FIG. 1, an image display unit is provided in the interface so that the music structure feature section can be seen visually while reflecting the contents of the music. This visualization will be described in detail later. Specifically, according to this embodiment, “Cueing of rust section”, “Cueing of previous music structure section (repeated section)”, “Head of next music structure section (repeated section)” , "Listen" is possible, and the listener can listen to only the chorus part or jump to the head of the previous and next music structure and listen to it.
[0036]
FIG. 3 is a block diagram showing the configuration of an embodiment of the music reproducing apparatus of the present invention for carrying out the method of the present invention. The music reproducing device 1 includes a music acoustic data reproducing device 3 that reproduces music acoustic data, and has a function of reproducing an arbitrary music structure feature section selected from a plurality of music structure feature sections in the music. In this example, for example, music acoustic data with music structure feature section designation data sent via a network is input to the data separation means 5. The data separation means 5 separates the music acoustic data and the music structure feature section designation data from the music acoustic data with the music structure feature section designation data, and the music acoustic data is stored in the music acoustic data storage means 7 to store the music structure. The feature section designation data is stored in the music structure feature section designation data storage means 9. The control unit 11 is connected to the music acoustic data playback device 3.When,Interface 13WithinThe image display unit 17 provided with the display 15 is controlled. The control unit 11 includes designated data adding means 12. The main parts of the music sound data reproducing device 3, the control unit 11, the designated data providing unit 12, the interface 13, and the image display unit 17 are realized by a computer (not shown) that can be operated by a program.
[0037]
The music structure feature section designation data storage means 9 stores music structure feature section designation data for designating a plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced. The interface 13 has a function of selecting an arbitrary music structure feature section from a plurality of music structure feature sections, as will be described in detail later. Also, the designation data giving means 12 reads out music structure feature section designation data for designating an arbitrary music structure feature section selected by the interface 13 from the music structure feature section designation data storage means 9 and gives it to the music acoustic data reproducing apparatus 3. . The music acoustic data playback device 3 operates in accordance with a command from the interface 13, and changes the playback position to the music structure feature section designated by the designated data, particularly when the music structure feature section designation data is given from the designated data adding means 12. To do. In the music playback device 1, even during playback of music, any music structure feature section selected by the interface 13 can be played back. Of course, the music / acoustic data reproducing apparatus 3 may be configured to be able to reproduce an arbitrary music structure feature section selected by the interface even when the music is not being reproduced.
[0038]
FIG. 4A includes a feature section designation data generation means 21 that automatically extracts a plurality of song structure feature sections in a song from music acoustic data and creates song structure feature section designation data, and includes an interface 13 ′. Shows a modified example of the music reproducing device 1 ′ of the present invention in which is independently present. If such a feature section designation data generation means 21 is provided, the present invention can be easily applied even when an existing music piece is reproduced. The feature section designation data generation means 21 may be configured so that the above-described automatic rust section detection method can be implemented. In the embodiment of FIG. 4A, an interface 13 'having one or more selection buttons is prepared as an independent device. In this interface 13 ', the selection button is constituted by a manual switch that is physically operated by a so-called finger. The selection button may be of a type that is operated by clicking on the screen displayed on the touch panel with a finger or pen, or by clicking with a mouse, and the structure thereof is arbitrary.
[0039]
Further, as shown in FIG. 4B, the image display unit 17 ′ including the interface 13 ′ may be configured as an independent device. In this example, the music acoustic data and the music structure feature section designation data are downloaded separately, and the music acoustic data storage means 7 and the music structure feature section designation data are directly used.StoreThe information is stored in the means 9.
[0040]
In the embodiment of FIG. 3 described above, the operation unit and the display unit of the interface 13 are both displayed on the display 15. Means for controlling the operation of the interface is built in the image display unit 17. FIG. 5A is a diagram illustrating an example of the configuration of the operation unit and the display unit of the interface 13 displayed on the display 15. In this example, the music acoustic data in which the length of the music acoustic data is displayed by the image display A using the time axis in the upper window W1, and the music acoustic data reproducing device 3 reproduces the music acoustic data at the same time. And a plurality of music structure feature sections are displayed by an image display B using a time axis, and various selection buttons SW1 to SW10 are also displayed on the display 15 by an image display C in the lower window W2. 17 is displayed.
[0041]
In the lower window W2, in order from the left side, a stop selection button SW1, a pause selection button SW2, a playback selection button SW3, and the head of the previous song are displayed.ShiA selection button SW4, a fast-reverse selection button SW5, a fast-forward selection button SW6, and a next song cue selection button SW7 are arranged side by side. Conventional symbols are drawn on these buttons. These selection buttons are the same as those used in the existing interface. The elapsed time from the beginning of the music is displayed above the stop selection button SW1.
[0042]
The interface used in the present embodiment further includes three selection buttons SW8 to SW10 called automatic jump buttons in the window W2. In order from the left, the first repeat section selection button SW8 for “finding the section of the previous music structure”, the second repeat section selection button SW9 for “finding the section of the next music structure”, and “rust” This is the chorus section selection button SW10 for “section heading”.
[0043]
When the chorus section selection button SW10 is pressed, a chorus section behind the current playback position (or the first chorus section if not behind) is searched and jumped to the start point. Normally, rust is repeated a plurality of times in the music, but each time this button SW10 is pressed, it is possible to jump between them in order. When the other two buttons SW8 and SW9 are pressed, the start point of the repeated section located immediately after or immediately before the current reproduction position is searched and jumped to the head thereof. When searching, the end point of the section is ignored.
[0044]
Next, the configuration of the window W1 (music structure display window) on the upper side will be described. There is a rust section display bar B1 at the top, and below it, five repeated section display bars B2 to B6 are displayed so that they can be visually recognized. In this example, a 5-stage repeated section display bar is used, but the number of display bars is arbitrary and is not limited to this embodiment. A mark of the same color as the color for displaying the section of the chorus section display bar B1 is displayed on the chorus section selection button SW10, and a mark of the same color as the color for displaying the sections of the section display bars B2 to B6 is displayed. It is displayed on the two buttons SW8 and SW9. As a result, an erroneous operation when the operator selects a button can be prevented. This example displays that five types of melody are being played repeatedly. The display A of the thin horizontal bar at the bottom is a playback position slider that informs the elapsed time in the music. In this example, the six display bars B1 to B6 are crossed.A vertical display bar I is provided. This vertical display bar IIs displaced in synchronization with the display mark a of the playback position slider A to display the current playback position. When such a display is used, music acoustic data can be reproduced by directly clicking each section (touching when using the touch panel), or the reproduction position can be changed by clicking the reproduction position slider. With the above interface and functions, the listener can listen to the chorus just by pressing a button after listening to the intro a little. The window W2 has two buttons, a first rust section selection button for “finding the previous rust section” and a second rust section selection button for “finding the next rust section”. May be. In this embodiment, one button is used for the following reason. (1) If the current chorus section selection button SW10 for “finding the chorus section” is repeatedly hit, after all the chorus sections have been made, the first section is returned to the first section, so that it is possible to move to the desired location in a short time. (2) When it is necessary to return to the past chorus section instantaneously, means for directly clicking the section in the music structure display window W1 is prepared. In addition, various parts can be selectively listened to while visually grasping the entire structure of the music piece.
[0045]
As shown in this example, when the structure of the chorus section or the repeated section in the music is visualized (whichever is acceptable), the listener can intro, the first type of melody (from the visualized screen) (A melody), the second kind of melody (B melody), rust, interlude, etc. can be grasped.
[0046]
FIG. 5B shows another interface display mode. In the interface shown in FIG. 5B, in addition to the first chorus section selection button SW10 used when the chorus section selection button jumps to the next chorus section, the second chorus section selection button for jumping to the previous chorus section. SW11 is provided. The other points are the same as the interface of FIG.
[0047]
FIG. 6 is used in the above embodiment.As shown in FIG.It is a block diagram which shows the algorithm of the program used when implement | achieving the interface 13.The So the interface isIn addition to the first chorus section selection button used when the chorus section selection button jumps to the next chorus section, a second chorus section selection button for jumping to the previous chorus section is provided.The
First, in step ST1, the rust section and the repeated section are visualized as display bars B1 to B6. In step ST2, the reproduction position is displayed by the vertical display bar I and the display mark a. When these displays are finished, in step ST3, stop selection button SW1, pause selection button SW2 andRegenerationIt is determined which one of the selection buttons SW3 is pressed (clicked or selected). If the stop selection button SW1 is pressed, the playback position of the music sound data is set to the head of the data, and the playback state is set to stop. If the pause selection button SW2 is pressed, playback is performed.StatusSet to pause. If the reproduction selection button SW3 is further pressed, the reproduction state is set to reproduction (the reproduction speed at this time is normal). When step ST4 ends, the process returns to step ST2, and the positions of the vertical display bar I and the display mark a are changed according to the reproduction position. If no selection button is pressed, the process proceeds to step ST5. In step ST5, it is determined whether or not the fast forward selection button SW6 or the fast reverse selection button SW5 is pressed. If either the fast-forward selection button SW6 or the fast-reverse selection button SW5 is pressed, the process proceeds to step ST6, and the playback speed is changed to fast-forward or fast-reverse only while the button is pressed, and then step In ST7, the playback state is set to playback. As a result, fast-forward or fast-reverse is executed while playing back. Note that the change of the reproduction position according to the change of the reproduction speed is displayed in step ST2, and the moving speed of the vertical display bar I and the display mark a is also changed.
[0048]
If neither the fast forward selection button SW6 nor the fast reverse selection button SW5 is pressed, the process proceeds to step ST8. In step ST8, it is determined whether or not the first and second chorus section selection buttons SW10 or SW11 are pressed for cueing the next chorus section. If either the first or second chorus section selection button SW10 or SW11 is pressed, the process proceeds to step ST9. In step ST9, it is set that the playback position or the playback position is displaced to the beginning of the next chorus section. Then, the process returns to step ST2 via step ST7, and the jump or displacement of the vertical display bar I and the display mark a is displayed. If it is confirmed in step ST8 that the selection button SW10 or SW11 is not pressed, the process proceeds to step ST10. In step ST10, it is determined whether the first and second repeated section selection buttons SW8 and SW9 for jumping to the beginning of the previous repeated section or the beginning of the subsequent repeated section are pressed. If any of the first and second repeated section selection buttons SW8 and SW9 is pressed, the process proceeds to step ST11. In step ST11, the playback position is displaced from the current playback position or playback position to the beginning of the next or previous repeat section. In step ST7, the reproduction state is set to reproduction, and the reproduction position display is changed in step ST2. In step ST10, if neither of the first and second repeated section selection buttons SW8 and SW9 is pressed, the process proceeds to step ST12.
[0049]
Step ST12 is provided when each section display on the display 15 becomes a selection button as it is. Also in this case, when each section is directly clicked (touched), the playback position is displaced to the beginning of the clicked (touched) section.Make. Thereafter, the process proceeds to step ST7, where the reproduction state is set to reproduction, and the process proceeds to step ST2, where the change of the reproduction position is displayed.
[0050]
If the selection button is not clicked in step ST12, the process proceeds to step ST14. In step ST14, it is determined whether or not an instruction operation for moving the mark a by clicking (touching) the mark a on the reproduction position slider has been performed. When the operation is performed, the process proceeds to step ST15, where the playback position is set as the movement destination of the slider mark a, and then the playback state is set to playback in step ST7, and the process returns to step ST2.
[0051]
FIG. 7 is a flowchart showing an algorithm for operation using the selection buttons SW1 to SW7. The operation according to the algorithm shown in FIG. 6 and the operation according to the algorithm of FIG. 7 proceed in parallel. If the selection buttons SW8 to SW11 are not pressed, reproduction is performed according to FIG. 6, and if the selection buttons SW8 to SW11 are pressed during the reproduction, predetermined steps of the algorithm of FIG. 6 are executed.
[0052]
6 and 7, the “playback state” includes stop, pause, and playback states, “playback position” is the elapsed time from the beginning of the music file, and “playback speed” A normal playback speed, a fast-forward playback speed, and a fast-rewind playback speed are included.
[0053]
The operation state of the interface 13 will be described with reference to FIGS. In the display bars B <b> 1 to B <b> 6, the black portion and the gray portion indicate the music structure feature section of the chorus section and the repeat section. In these drawings, the selection button in the pressed state is hatched for easy understanding. First, referring to FIGS. 8A to 8C and FIGS. 9A to 9C, the cue section cueing operation will be described. The state shown in FIG. 8A is a state immediately after the reproduction selection button SW3 is pressed and reproduction of certain music acoustic data is started. In this state, the vertical display bar I and the display mark a are at the initial position for reproduction. FIG. 8B shows a state where the reproduction state is continued. When the chorus section selection button SW10 is pressed once in this state, the state is as shown in FIG. In this state, the vertical display bar I and the display mark a jump to the head of the display of the rear chorus section, and the playback position is also displaced to the head of the first chorus section. When the chorus section selection button SW10 is pressed again after continuing the playback state for a while, as shown in FIG. 9A, the vertical display bar I and the display mark a are moved or jumped at the head of the display of the second chorus section. The playback position is also displaced to the beginning of the second chorus section. When the chorus section selection button SW10 is further pressed, as shown in FIG. 9B, the vertical display bar I and the display mark a move or jump to the top of the display of the third chorus section, and the playback position is also the third. Displaces to the beginning of the chorus section. When the chorus section selection button SW10 is further pressed, since there is no chorus section next, as shown in FIG. 9C, the vertical display bar I and the display mark a move or jump to the head of the first chorus section, The playback position is also displaced to the beginning of the first chorus section.
[0054]
Next, the operation of jumping the repeated section will be described with reference to FIGS. The state shown in FIG. 10A is a state immediately after the reproduction selection button SW3 is pressed and reproduction of certain music acoustic data is started. In this state, the vertical display bar I and the display mark a are at the initial position for reproduction. FIG. 10B shows a state where the reproduction state is continued. In this state, when the second repeated section selection button SW9 is pressed once, the state is as shown in FIG. In this state, the vertical display bar I and the display mark a jump to the head of the display of [second repeat section of display bar B4] of the nearest rear repeat section, and the nearest rear repeat section [display It is displaced to the head of the second repeated section of the bar B4. When the second repeat section selection button SW9 is pressed once again after continuing the playback state for a while, as shown in FIG. 11 (A), the [1st display bar B5 of the nearest rear repeat section in this state is displayed. The vertical display bar I and the display mark a jump to the head of the display of [repeated section of [], and are displaced to the head of the rear repeated section [the first repeated section of the display bar B5] whose reproduction position is the closest. When the second repeat section selection button SW9 is further pressed once, as shown in FIG. 11 (B), the display of [second repeat section of display bar B5] of the nearest repeat section in this state is displayed. The vertical display bar I and the display mark a jump to the top of the head, and are displaced to the head of the rear repeated section [second repeated section of the display bar B5] whose reproduction position is closest.
[0055]
Next, using FIG. 12 and FIG. 13, the operation of jumping forward in the repeated section will be described. The state shown in FIG. 12A is a state immediately after the reproduction selection button SW3 is pressed and reproduction of certain music sound data is started. In this state, the vertical display bar I and the display mark a are at the initial position for reproduction. FIG. 12B shows a state where the reproduction state is continued. When the first repeat section selection button SW8 is pressed once in this state, the state is as shown in FIG. In this state, the vertical display bar I and the display mark a jump to the head of the display of [the first repeat section of the display bar B4] of the nearest forward repeat section, and the nearest repeat section [display It is displaced to the head of the first repeated section of the bar B4. When the first repeat section selection button SW8 is pressed once again in this state, as shown in FIG. 13, it is closest in this state.forwardThe vertical display bar I and the display mark a jump to the top of the display of the repeat section [first repeat section of the display bar B6], and the nearest repeat section [first repeat section of the display bar B6] is the closest playback position. Displaces to the beginning of.
[0056]
As described above, by arbitrarily selecting the selection buttons SW8 to SW10, it is possible to reproduce an arbitrary music structure feature section selected by the interface 13.
[0057]
FIG. 14 shows an example of an interface screen actually created by the inventor.
[0058]
Next, the actual machine which implemented this invention more concretely and its result are demonstrated.
[0059]
The actual machine interface operates by using a file including a description of a rust section and a repetitive structure obtained using the rust section detection method.
[0060]
The GUI part of the actual machine, the engine part of the music sound reproduction apparatus, and the sound output device control part are implemented as separate processes that operate in a distributed environment so as to enhance scalability. For this purpose, a network protocol RACP (Remote Audio Control Protocol) that enables efficient sharing of acoustic signals and various control information on the network was designed and implemented based on it. RACP is a protocol obtained by extending RMCP (Remote Music Control Protocol) for transmission of acoustic signals.
[0061]
The actual machine was operated under four conditions depending on the presence or absence of two proposed functions (selection buttons SW8 to SW10 for jumping and music structure display). As a sample to be listened to, a song that the listener listens to for the first time was selected from 100 songs (RWC-MDB-P-2001 No. 1 to 100) of “RWC Research Music Database: Popular Music”. However, the music structure characteristic section designation data correctly obtained by the automatic chorus section detection method was used (the number of correct answers in 100 songs by the automatic chorus section detection method was 80). For reference, these 100 songs have been labeled with beats and bar breaks in advance for humans (music college graduates) to manually label these 100 songs using the manual chorus section labeling editor that we have developed. It took about 100 hours from the beginning. The four conditions and their operational results are described below. Here, for comparison between conditions, a function of directly clicking and reproducing a section on the visualized music structure is not used.
[0062]
[Condition 1] There is no proposed function (conventional).
[0063]
When the head part of the song was not rusted, the listener repeated the operation of pressing the fast-forward selection button after listening to it for a while until the rust appeared about 5-10 times. Fast-forwarding while listening little by little was time-consuming and annoying, but it was effective when you wanted to get a feel for the music.
[0064]
[Condition 2] There are no selection buttons SW8 to SW10, but there is a music structure display.
[0065]
It was effective to obtain feedback on how far the playback position should be fast-forwarded, and the listener evaluated it as more convenient than Condition 1. However, since the screen display shows the point beyond the current playback position, there has been a strong desire to jump to that point.
[0066]
[Condition 3] There are selection buttons SW8 to SW10, but there is no music structure display.
[0067]
After listening to the intro for the first time, repeatedly pressing the chorus section selection button SW10 and repeating the operation of pressing the second repeat section selection button SW9 used for “finding the section of the next music structure section” and listening a little The main way of listening is to listen carefully when rust comes out. The point of being able to listen while flying efficiently was evaluated and was preferred over Condition 2.
[0068]
[Condition 4] All the proposed functions are valid (corresponding to the embodiment).
[0069]
This is a trial listening method that provides the advantages of both condition 2 and condition 3, and was evaluated as the most convenient. In addition to the way of listening as in condition 3, the tendency to listen to the music structure as it moves freely increases, and after listening to rust, you can return to the first type of melody (A melody) or listen to the second half of the song. I listened to the repetition of the chorus.
[0070]
Condition 3 corresponds to the case where three selection buttons SW8 to SW10 are added to a normal media player, and it has been found that the condition 3 is more convenient than the normal player even if there is no music structure display. Moreover, from the condition 4, it was found that the visualization further helps the operation and is effective in listening to various parts of the music. Furthermore, it was confirmed that a listener who had not received any explanation about the function of the button or the contents of the display window grasped the meaning of the button even if it was used under the condition 4 in a short time.
[0071]
From the above, it has been confirmed that the interface functions practically and the listener can interactively intervene in the music reproduction by pressing the selection buttons SW8 to SW10 for jumping with the help of the music structure display.
[0072]
In the above embodiment, the interface operation unit is formed on the display. However, the interface may be configured using an actual switch such as an analog switch.
[0073]
The above-described embodiment is realized by installing a program in a so-called personal computer. However, for example, the present invention can of course be applied to various music sound players such as so-called radio cassettes, CD players, and DVD players.
[0074]
The interface used in the present embodiment is useful as a general music playback interface, and is obtained by adding an operation system for each section in the music to a conventional operation system for each music. Previously, you could skip songs you weren't interested in, but it wasn't easy to skip parts of interest that weren't interesting. The interface of the present invention has a great merit that “you can listen to what you want” without following the timeline of the original song. A random play function in units of sections can also be realized so that a random play (shuffle play) function in music units can be performed. Also, when listening to music while changing the music playback position interactively while watching the music structure in a scene that allows longer usage than trial listening, there is a tendency to listen more analytically than conventional appreciation. For example, there are scenes in which the entire music composition is confirmed, each section on the composition is listened to, and repeated sections are compared. Also, the result of visualizing the music structure is interesting and useful just by listening to music while looking at it.
[0075]
In addition to jumping the playback position to the beginning of a repeated section in a song, if you label a section that is not repeated (interlude, guitar solo, etc.), you can jump the playback position to the beginning.
[0076]
【The invention's effect】
According to the present invention, there is an advantage that a music structure feature section such as a chorus section can be easily reproduced using a music acoustic data reproducing apparatus by selection through an interface.
[0077]
In addition, if the present invention is used, it is possible to obtain a music sampler equipped with a “rusting out” function (rusting section selection button). By simply pressing the chorus section selection button, the test listener can jump the playback to the head of the chorus section (instant fast forward), which is advantageous in that it is freed from the troublesome work of searching for the chorus section. Furthermore, by presuming or preparing the repeated sections in the music other than the chorus in advance, there is an advantage that the playback can be jumped to the beginning of the repeated section of the next music structure.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a concept of an embodiment of a music reproducing method of the present invention.
FIG. 2A is a display of a screen for an editor for manual chorus section labeling, and FIGS. 2B and 2C are diagrams showing examples of histograms obtained by a listener behavior analysis technique.
FIG. 3 is a block diagram showing a configuration of an embodiment of a music playback device of the present invention.
FIG. 4A is a diagram showing a feature section specifying data generation unit that automatically extracts a plurality of song structure feature sections in a song from music acoustic data and creates song structure feature section designation data. It is a block diagram which shows the modification of a music reproduction apparatus, (B) is a block diagram which shows another modification.
FIG. 5 is a diagram illustrating an example of an interface display screen.
FIG. 6 is a flowchart showing an algorithm of a program used when realizing an interface.
FIG. 7 is a flowchart showing an algorithm of an interface operation when performing a normal reproduction operation.
FIGS. 8A to 8C are diagrams used for explaining selection of a chorus section.
FIGS. 9A to 9C are diagrams used for explaining selection of a chorus section.
FIGS. 10A to 10C are diagrams used to explain selection of a repeated section.
FIGS. 11A and 11B are diagrams used for explaining selection of a repetitive section. FIGS.
FIGS. 12A to 12C are diagrams used to explain selection of a repeated section.
FIG. 13 is a diagram used for explaining selection of a repetitive section.
FIG. 14 is a diagram showing a screen of an actually created interface.
[Explanation of symbols]
1 Music playback device
3 Musical sound data playback device
5 Data separation means
7 Music acoustic data storage means
9 Music structure feature section designation data storage means
1 1 Control unit
13 Interface
15 display
17 Image display

Claims (25)

A music reproducing method for reproducing the music acoustic data using a music acoustic data reproducing apparatus for reproducing music acoustic data,
A first step of preparing, in advance, a plurality of music structure feature section designation data for designating a music structure feature section in a song for the music acoustic data to be reproduced;
A second step of preparing an interface for selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
Based on the music structure feature section designation data corresponding to the arbitrary music structure feature section selected by the operator using the interface after starting the reproduction of the music acoustic data using the music sound data playback apparatus. And a third step of changing the music acoustic data playback position by the music acoustic data playback device to the arbitrary music structure feature section ,
The music structure feature section includes a rust section in the music and a repeating section in the music,
The interface prepared in the second step displays the length of the music sound data by image display using a time axis, and the music sound data playback device plays back the music sound data. It has an image display unit that displays the playback position of music acoustic data and the plurality of music structure feature sections by image display using the time axis,
The music reproducing method , wherein the interface has one or more selection buttons operated by an operator in order to select an arbitrary music structure feature section from the plurality of music structure feature sections . A method for playing back an arbitrary music structure feature section selected from a plurality of music structure feature sections in a song using a music sound data playback device for playing back music acoustic data,
A first step of preparing in advance a plurality of music structure feature section designation data for designating the plurality of music structure feature sections with respect to the music acoustic data to be reproduced;
A second step of preparing an interface for selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
A third unit for causing the music / acoustic data reproducing apparatus to reproduce the arbitrary music structure feature section based on the music structure feature section designation data corresponding to the arbitrary music structure feature section selected by the operator using the interface; Consisting of steps ,
The music structure feature section includes a rust section in the music and a repeating section in the music,
The interface prepared in the second step displays the length of the music sound data by image display using a time axis, and the music sound data playback device plays back the music sound data. It has an image display unit that displays the playback position of music acoustic data and the plurality of music structure feature sections by image display using the time axis,
The music reproducing method , wherein the interface has one or more selection buttons operated by an operator in order to select an arbitrary music structure feature section from the plurality of music structure feature sections .   In the first step, the plurality of music structure feature sections are specified by a person to specify the plurality of music structure feature sections based on the music acoustic data, and specify the plurality of music structure feature sections identified. The music reproduction method according to claim 1 or 2, wherein the music is reproduced.   In the first step, the plurality of music structure feature sections are identified based on statistical data of reproduction behavior when a plurality of listeners reproduce the target music acoustic data, and the plurality of music structure identified 3. The music playback method according to claim 1, wherein the plurality of music structure feature section specifying data for specifying a feature section is created. The plurality of music structure feature sections are composed of a plurality of climax sections indicating a rust portion of the music and a plurality of repeat sections indicating a repeated portion,
Music reproducing method according to claim 1 or 2, wherein the image display unit and displaying distinguishes between the plurality of repeated sections and the plurality of chorus section. The music according to claim 1 or 2 , wherein the one or more selection buttons include one or more chorus section selection buttons for selecting only the chorus section from the plurality of music structure feature sections. Playback method. 7. The music reproduction according to claim 6 , wherein the one or more chorus section selection buttons include a first chorus section selection button for selecting a previous chorus section and a second chorus section selection button for selecting a subsequent chorus section. Method. The one or more selection buttons include a first repetition interval selection button for selecting a previous repetition interval and a second repetition interval selection button for selecting a subsequent repetition interval when selecting the plurality of repetition intervals. The music reproduction method according to claim 1, wherein the music reproduction method is included.   The music reproducing method according to claim 1, wherein the one or more selection buttons are image display buttons displayed on the image display unit. The image display in which the said indicated on the image display unit a plurality of display chorus sections and the plurality of repeated sections, the operator operates to select a desired musical piece structure characteristic section from the plurality of musical structure characteristic section The music playback method according to claim 9 , wherein the music playback method is a button. A music playback device having a music acoustic data playback device for playing back music acoustic data and having a function of playing back an arbitrary music structure feature section selected from a plurality of song structure feature sections in a song,
An interface having a function of selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
Music structure feature section designation data storage means for storing music structure feature section designation data for designating the plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced;
Designation data providing means for providing the music sound data reproducing device with the music structure feature section designation data for designating the arbitrary music structure feature section selected by the interface;
The music acoustic data playback device changes the playback position to the music structure feature section designated by the music structure feature section designation data given from the designated data giving means when playing the music acoustic data. is configured to,
The music structure feature section includes a rust section in the music and a repeating section in the music,
The interface displays the length of the music acoustic data by image display using a time axis, and at the same time, the music acoustic data playback device playing back the music acoustic data and the music acoustic data playback position and the music acoustic data playback position. An image display unit having a function of displaying a plurality of music structure feature sections by image display using the time axis;
The music playback apparatus according to claim 1, wherein the interface includes one or more selection buttons operated by an operator to select an arbitrary music structure feature section from the plurality of music structure feature sections . A music playback device having a music acoustic data playback device for playing back music acoustic data and having a function of playing back an arbitrary music structure feature section selected from a plurality of song structure feature sections in a song,
An interface having a function of selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
Music structure feature section designation data storage means for storing music structure feature section designation data for designating the plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced;
Designation data providing means for providing the music sound data reproducing device with the music structure feature section designation data for designating the arbitrary music structure feature section selected by the interface;
The music / acoustic data reproducing apparatus is configured to execute the reproduction of the music / acoustic data with the music structure feature section designated by the music structure feature section designation data given from the designation data giving means as a playback position. And
The music structure feature section includes a rust section in the music and a repeating section in the music,
The interface displays the length of the music acoustic data by image display using a time axis, and at the same time, the music acoustic data playback device playing back the music acoustic data and the music acoustic data playback position and the music acoustic data playback position. An image display unit having a function of displaying a plurality of music structure feature sections by image display using the time axis;
The music playback apparatus according to claim 1, wherein the interface includes one or more selection buttons operated by an operator to select an arbitrary music structure feature section from the plurality of music structure feature sections . The music acoustic data is accompanied by the music structure feature section designation data,
The music reproducing apparatus according to claim 11 or 12 , wherein the music structure feature section designation data storage means reads and stores the music structure feature section designation data accompanying the music acoustic data. The apparatus further comprises characteristic section designation data generation means for automatically extracting the plurality of music structure feature sections in the music from the music acoustic data and creating the music structure feature section designation data. Item 13. The music playback device according to Item 11 or 12 . The plurality of music structure feature sections are composed of a plurality of climax sections indicating a rust portion of the music and a plurality of repeat sections indicating a repeated portion,
The music reproducing apparatus according to claim 10 or 11 , wherein the image display unit has a function of distinguishing and displaying the plurality of chorus sections and the plurality of repeated sections. The music according to claim 10 or 11 , wherein the one or more selection buttons include one or more chorus section selection buttons for selecting only the chorus section from the plurality of music structure feature sections. Playback device. The music reproduction according to claim 16 , wherein the one or more chorus section selection buttons include a first chorus section selection button for selecting a previous chorus section and a second chorus section selection button for selecting a subsequent chorus section. apparatus. The one or more selection buttons include a first repetition interval selection button for selecting a previous repetition interval and a second repetition interval selection button for selecting a subsequent repetition interval when selecting the plurality of repetition intervals. The music playback device according to claim 10 , wherein the music playback device is included. The interface includes one or more selection buttons operated by an operator to select an arbitrary music structure feature section from the plurality of music structure feature sections.
The music reproducing device according to claim 10 or 11 , wherein the one or more selection buttons are image display buttons displayed on the image display unit. The image display in which the said indicated on the image display unit a plurality of display chorus sections and the plurality of repeated sections, the operator operates to select a desired musical piece structure characteristic section from the plurality of musical structure characteristic section The music playback device according to claim 19 , wherein the image display unit is configured to be a button. A plurality of music structures in a music composition using a device comprising a computer, a display that operates based on a command from the computer, and a music sound data reproducing device that reproduces music sound data according to the command from the computer A program for causing the computer to realize a function of reproducing an arbitrary music structure feature section selected from a feature section,
A function of configuring an interface on the display for selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
A function constituting music structure feature section designation data storage means for storing music structure feature section designation data for designating the plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced;
A function that constitutes designation data giving means for giving the music sound data reproducing device the music structure feature section designation data that designates the arbitrary music structure feature section selected by the interface;
When the music / acoustic data is being reproduced, the music / acoustic data is reproduced so that the reproduction position is changed to the music structure feature section designated by the music structure feature section designation data given from the designation data giving means. apparatus and a function of providing an instruction e Bei configuration to realize said computer,
The function of configuring the interface on the display includes one or more selection buttons on the display including a chorus section selection button operated by an operator to select chorus sections included in the plurality of music structure feature sections. Has the function to form,
The function of configuring the interface on the display displays the length of the music acoustic data on the display by image display using a time axis, and the music acoustic data reproduction device reproduces the music acoustic data. The music acoustic data playback position and the plurality of music structure feature sections are further displayed on the display by image display using the time axis,
The plurality of music structure feature sections are composed of a plurality of climax sections indicating a rust portion of the music and a plurality of repeat sections indicating a repeat section,
The function of configuring the interface on the display distinguishes the plurality of chorus sections and the plurality of repeating sections and displays them on the display, and the plurality of chorus sections and the plurality of chorus sections shown on the display. It further has a function of displaying the repeated section as the one or more selection buttons operated by an operator in order to select an arbitrary music structure feature section from the plurality of music structure feature sections. A program for realizing a music player. A plurality of music structures in a music composition using a device comprising a computer, a display that operates based on a command from the computer, and a music sound data reproducing device that reproduces music sound data according to the command from the computer A program for causing the computer to realize a function of reproducing an arbitrary music structure feature section selected from a feature section,
A function of configuring an interface on the display for selecting an arbitrary music structure feature section from the plurality of music structure feature sections;
A function constituting music structure feature section designation data storage means for storing music structure feature section designation data for designating the plurality of music structure feature sections predetermined in correspondence with the music acoustic data to be reproduced;
A function that constitutes designation data giving means for giving the music sound data reproducing device the music structure feature section designation data that designates the arbitrary music structure feature section selected by the interface;
A configuration for causing the computer to realize a function of giving a command to the music acoustic data playback device so as to play back the music structure feature section designated by the music structure feature section designation data given from the designation data giving means. Bei example,
The function of configuring the interface on the display includes one or more selection buttons on the display including a chorus section selection button operated by an operator to select chorus sections included in the plurality of music structure feature sections. Has the function to form,
The function of configuring the interface on the display displays the length of the music acoustic data on the display by image display using a time axis, and the music acoustic data reproduction device reproduces the music acoustic data. The music acoustic data playback position and the plurality of music structure feature sections are further displayed on the display by image display using the time axis,
Wherein the plurality of musical structure characteristic section is composed of a plurality of chorus section showing the climax part of the music, a plurality of repeated sections showing between repeated Ward,
The function of configuring the interface on the display distinguishes the plurality of chorus sections and the plurality of repeating sections and displays them on the display, and the plurality of chorus sections and the plurality of chorus sections shown on the display. It further has a function of displaying the repeated section as the one or more selection buttons operated by an operator in order to select an arbitrary music structure feature section from the plurality of music structure feature sections. A program for realizing a music player. The music reproducing method according to claim 4, wherein a section where the number of times of reproduction by a plurality of listeners is large is determined as the plurality of music structure feature sections. 24. The music playback method according to claim 23, wherein data of a section in which the number of playbacks by the plurality of test listeners is large is collected from a plurality of test music playback devices connected to the network. 25. The music reproduction method according to claim 24 , wherein the data is in a state that can be visually recognized as a histogram, and the plurality of music structure feature sections are specified from the histogram.

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