JP4697166B2 - Music playback control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a music reproduction controller which learns music that a user prefers in response to user's operation for music data being reproduced and which reproduces music data with such reproduction probability that matches user's preference. <P>SOLUTION: A setting part 3 sets reproduction priority for each of a plurality of music data stored in a data storage part 2, and changes reproduction priority set for music data being currently reproduced by a music data reproduction part 8 in response to cuing operation or skip operation detected by an operation detection part 9. Further, a reproduction control part 7 selects music data according to reproduction probability corresponding to the reproduction priority set for each reproduction candidate music data and makes a music data reproduction part 8 reproduces the data. The reproduction control part 7 stops the reproduction of the music data being actually reproduced and starts reproducing next music data when the skip operation is detected, and starts reproducing the music data being actually reproduced from the start position of the music data when the cuing operation is detected. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

The present invention relates to a music playback control apparatus suitable for listening to a plurality of songs.
In particular, the present invention is suitable for a music reproduction control device for a portable music player in which a user (user) reproduces music while performing aerobic repetitive exercise such as walking, jogging, and dancing.

Conventionally, in a portable music player in which a large number of songs are stored, for example, an MP3 (MPEG-1 Audio Layer-III) player, the songs are played continuously (album playback) in a predetermined order, or the songs are played in a random order ( Or shuffle playback).
In this way, when playing multiple songs, even if a song that matches the user's preference happens to be played, the next song may not always have a preference because the music tempo and tone may be different from the previous song. A song that suits your needs is not played, and a song that doesn't suit your taste may be played.

Conventionally, several patent literatures are known as techniques relating to the tone of music.
There is a method of searching for a song desired by a user based on a subjective impression on the song (see Patent Document 2).
Extract physical features of the acoustic signal (spectrum change, average number of pronunciations, pronunciation aperiodicity, beat period, beat period ratio, beat intensity 1, intensity 2, beat intensity ratio), and add this to the music The subjective impression is converted into a numerical impression value and registered in the music database. When the user inputs a search requirement related to a subjective impression, a predicted impression value of the music is calculated from this, and the music database is searched using the predicted impression value and the like as a key, and a plurality of music is output as candidate songs. The music selection means selects music by a user's selection operation or a predetermined music selection procedure.

In addition, a car stereo device (see Patent Document 2) that performs music selection / playback corresponding to individual sensibilities using a search keyword (corresponding to tune) is known. Here, for each piece of content information (music data), a “feature word list” including index values for about ten types of feature words is prepared for each individual user.
A desired search keyword is input by each user. The search keyword is set of about 5 0-100 type.
Based on the sensitivity table in which the correlation value between the search keyword and each feature word is recorded and the above feature word list, one or more pieces of content information matching the search keyword are selected from the plurality of music data. The sensitivity table is appropriately updated by a learning algorithm according to the user's individual sensitivity.

There is also known a music selection device (see Patent Document 4) that can present music that matches the sensitivity of the user. The data storage device stores the music data and the characteristic values of the characteristic parameters including the chord change degree (three types) of the music data, the beat, the beat maximum level, the average amplitude level, the maximum amplitude level, and the key.
Further, for each sensitivity word, the average value level and the unbiased variance value for the above-described feature parameter are stored as a default database according to age and gender or as a personal learning database.
The music is selected using the default database or the personal learning database according to the user's age, sex, and sensitivity word input.

However, the techniques described in Patent Documents 1 to 3 described above select music by instructing the tone of music. In other words, since it is necessary to select a fixedly determined search requirement, it is necessary to consider what search requirement is specified to select a favorite song. Therefore, even if I listened to the song being played and felt that it was my favorite song, I couldn't immediately imagine the search requirements.
In addition, since music elements other than the tune, for example, the music tempo are not taken into account, there is a problem that the user's preference cannot always be reflected only by instructing the tune.

On the other hand, a playback apparatus (see Patent Document 4) is known that can evaluate user's preference for music and perform automatic playback sequentially by appropriately selecting music that reflects the user's preference.
For example, if a skip button is pressed during playback of a song, playback stops and the evaluation value that reflects the user's preference in the playback content before skipping based on the time difference from the playback start time of the song to the skipped time And the preference information is created by registering in association with the reproduction content.
Also, an evaluation method such as registering an evaluation value +3 is described for the music played after the “return skip” (cue) operation.
In addition, an embodiment including an evaluation mode plus button and an evaluation mode minus button for the user to consciously evaluate the song manually while playing the song is also described. It is possible to add gradation to this button by the number of times it was pressed and the strength of the button pressed, but it is stated that the user's preference is measured by the time difference from the start of song playback until the plus or minus button is pressed. ing.

When the re-evaluation button is pressed, the digging up evaluation mode is set. Select a song with a low evaluation value of 0 or less and display it on the display, select a song on the screen, and press the play button to start playing the song. It is described that the evaluation value becomes, for example, +2 and can be dug up.
In the automatic music selection / playback mode, a music with a high evaluation value is selected, and music selection information is placed in the playlist. The control unit refers to the playlist, sequentially reads out the audio data of the reproduced music, and automatically reproduces the selected music in sequence.
In addition, it is also described that a preference is used to randomly select a song that is highly preferred by the user from among stored songs and automatically reproduce it. However, it does not describe how to realize it.
However, with the technique described in Patent Document 4 described above, a song with a low evaluation value is not reproduced, and a song with a high evaluation value is always reproduced. Although a mode for re-evaluation is provided, a complicated operation is required.
JP 2002-278547 A (paragraphs of FIG. 1, 0136, 0137) JP 2003-132985 A JP 2005-209276 A JP 2005-190640 A

  The present invention has been made to solve the above-described problems. When music data is selected from a music data storage device in which a plurality of music data is stored and reproduced by the music data reproduction device, the present invention is actually reproduced. An object of the present invention is to provide a music playback control device that learns a user's favorite song by user operation on music data, and selects and plays music data with a playback probability that matches the user's preference. is there.

According to the present invention, a plurality of music data is stored in a music data storage device together with each music tempo , and the music data is selected from the music data storage device. A music playback control device for playing back, wherein an operation detecting means for detecting an operation for raising a playback priority or an operation for lowering a playback priority by a user, a music tempo instructing means for instructing the music tempo , A playback priority is set for each piece of music data, and during playback of the music data, in response to an operation for raising the playback priority detected by the operation detecting means or an operation for lowering the playback priority, and setting means for changing a reproduction priority is set for the music data, the music tempo is instructed by the music tempo specifying means Case, one or a plurality of music data having a music tempo of substantially the same value as indicated music tempo value from among the plurality of music data stored in the music data storage device, selected for playback candidate music data Then, one piece of the music data is selected from the reproduction candidate music data according to a reproduction probability corresponding to the reproduction priority set for each reproduction candidate music data by the setting means, and the music data reproduction is performed. The apparatus has a reproduction control means for reproducing the apparatus.
According to a second aspect of the present invention, a plurality of music data are stored in a music data storage device together with their respective tunes, and the music data selected from the music data storage device is reproduced by the music data playback device. A playback control device, comprising: an operation detection means for detecting an operation for raising a playback priority by a user or an operation for lowering a playback priority; a music tone instruction means for instructing a music tone; and playback priority for each of the music data Is set for the music data currently being played back according to the operation for raising the playback priority or the operation for lowering the playback priority detected by the operation detection means during playback of the music data. When the tune is instructed by the setting means for changing the playback priority and the tune instructing means, the tune has substantially the same tune as the instructed tune 1 A plurality of music data are selected as reproduction candidate music data from the plurality of music data stored in the music data storage device, and each reproduction candidate music is selected from the reproduction candidate music data by the setting means. It has a reproduction control means for selecting one piece of the music data according to the reproduction probability according to the reproduction priority set for the data and causing the music data reproduction apparatus to reproduce it.
According to a third aspect of the present invention, a plurality of music data is stored in a music data storage device together with each music tempo and tune, and the music data is selected from the music data storage device and stored in the music data reproducing device. A music playback control device to be played back, an operation detecting means for detecting an operation of raising a playback priority by a user or an operation of lowering a playback priority, a music tempo and music tone instruction means for instructing the music tempo and music tone, In accordance with an operation for setting a playback priority for each of the plurality of music data and raising or lowering the playback priority detected by the operation detection means during playback of the music data, The setting means for changing the reproduction priority set for the music data being reproduced, and the music tempo and music tone instruction means When an easy tempo and a tune are instructed, one or more music data having a music tempo that is substantially the same as the instructed music tempo and having substantially the same tune as the instructed music tempo A reproduction candidate music data is selected from among a plurality of music data stored in a music data storage device, and the reproduction set for each reproduction candidate music data by the setting means from the reproduction candidate music data It has a reproduction control means for selecting one piece of the music data according to the reproduction probability corresponding to the priority and causing the music data reproduction apparatus to reproduce it.
Therefore, according to the first to third aspects of the present invention, the music data satisfying the instructed music tempo and / or music tone condition can be selected, and an operation for raising the playback priority for the music data currently being played back. Alternatively, the user's favorite music can be easily learned by detecting an operation for lowering the playback priority.
When music data is selected, the learning result can be reflected by selecting and reproducing the music data according to the selection probability according to the reproduction priority.
Since the playback priority determines the selection probability, not only those with a high playback priority are played back, but also those with a low playback priority are played back .

The invention described in claim 2 is applicable to the music listening mode (music appreciation).
The inventions described in claims 1 and 3 are applicable to the free mode (free movement). In this case, the repetitive motion tempo detecting means for detecting the repetitive motion tempo when the user is repetitively exercising, and a value corresponding to the value of the repetitive motion tempo detected by the repetitive motion tempo detecting means described above. Music tempo (and tune ) instruction means for instructing music tempo ( and tune) is provided.
Above reproduction control means, when the music tempo (and tune) is instructed by the music tempo (and tune) instruction means described above, having a music tempo of substantially the same value as indicated music tempo value (and 1 or a plurality of music data ( which has substantially the same music tone as the instructed music tone) is selected as a reproduction candidate music data from a plurality of music data stored in the music data storage device described above, and the reproduction candidates described above From the music data, one piece of the above-mentioned music data is selected according to the reproduction probability corresponding to the reproduction priority set for each reproduction candidate music data by the above-described setting means, and is reproduced on the above-described music data reproduction apparatus. Let
Accordingly, the music data is reproduced on the assumption that the music tempo follows the repetitive motion tempo of the exercise.

The above- described inventions according to claims 1 and 3 are applicable to the assist mode (exercise support). In this case, it further has heart rate detecting means for detecting the heart rate when the user is performing repetitive exercise.
The setting means described above sets an initial music tempo value and a target heart rate.
The music tempo (and tune) instruction means described above uses the initial music tempo value set by the setting means as an initial value, and is set by the heart rate detected by the heart rate detection means and the setting means described above. The above-described music tempo value (and tune) is instructed so that the difference from the target heart rate corresponding to the target exercise intensity becomes small.
The reproduction control means described above has a music tempo that is substantially the same value as the music tempo value indicated by the music tempo (and music tone) instruction means (and has a music tone that is substantially the same as the indicated music tone). Or a plurality of music data are selected as reproduction candidate music data from among the plurality of music data stored in the music data storage means, and each reproduction candidate music data is selected from the reproduction candidate music data by the setting means. One piece of the music data described above is selected in accordance with the reproduction probability corresponding to the reproduction priority set for the above and is reproduced by the music data reproduction apparatus described above.
Therefore, the music tempo is changed from the set initial value so that the heart rate approaches the target heart rate corresponding to the target exercise intensity, and the heart rate is related to the exercise intensity. , You will be able to exercise at the target exercise intensity. As a result, it is possible to exercise suitable for the user's exercise purpose.

According to a fourth aspect of the present invention, in the music reproduction control device according to any one of the first to third aspects, the operation detecting means performs a skip operation of the user during reproduction of the music data. And when the skip operation is detected by the operation detection means, the playback control means stops the playback of the music data currently being played back and starts the playback of the next music data, and the setting The means lowers the reproduction priority set for the music data currently being reproduced when the operation detecting means detects the skip operation.
The skip operation is interpreted as an indication that the user does not like the music data being played back. Therefore, if the priority is lowered by the skip operation, it is not necessary to provide an operator for specifically reducing the priority, and the priority can be lowered without the user being aware of it.

According to a fifth aspect of the present invention, in the music reproduction control device according to any one of the first to fourth aspects, the operation detecting means is a cueing operation of the user during reproduction of the music data. And when the operation detecting means detects the cueing operation, the reproduction control means starts reproduction of the music data currently being reproduced from the start position of the music data, and the setting means When the cueing operation is detected by the operation detecting means, the reproduction priority set for the music data currently being reproduced is increased.
The cueing operation is interpreted as an indication that the music data being played is preferred. Therefore, if the priority is raised by the cueing operation, it is not necessary to provide an operator for raising the priority, and the priority can be raised without the user being aware of it.

Repetitive motion tempo detection means, heart rate detection added when used in free mode or assist mode, each function of operation detection means, setting means, reproduction control means in the invention described in any one of the above-mentioned claims Each function of the means and the music tempo instruction means can be realized as a function executed by each step of the music reproduction control program using a computer.
In the invention described in each of the above-mentioned claims, the music data storage device and the music data playback device may be integrated with the music playback control device of the present invention, respectively, or separately, and the music playback of the present invention. The control device may be wired or wirelessly connected.

According to the present invention, a user's favorite music can be learned by a user's operation on the music data currently being played, and the music data can be selected and played with a playback probability that matches the user's preference. effective.
Here, not only a favorite song is selected, but a song that does not suit the taste may be selected. As a result, the user can continue exercising without getting tired of the reproduced music.

FIG. 1 is a functional configuration diagram for explaining an embodiment of the present invention.
This embodiment has a function suitable for a user (user) not only playing music but also playing music while performing repetitive exercise.
When simply playing music, it is used in the music listening (music appreciation) mode, and when playing music while performing repetitive exercise, it is used in the exercise (exercise) mode.
This exercise mode is further divided into a free (free movement) mode and an assist (exercise support) mode. However, the apparatus may be provided with any one mode.

The free mode is a mode in which the user listens to music while freely walking or running at an arbitrary walking tempo or running tempo (hereinafter referred to as repetitive motion tempo). A music tempo having a value corresponding to the repetitive motion tempo is reproduced following the change of the user's repetitive motion tempo.
The assist mode is a mode that supports the user's repetitive movement according to the exercise plan, and instructs the music tempo value so that the difference between the user's heart rate and the target heart rate corresponding to the target exercise intensity is small. To do. If the user performs repetitive exercise at a repetitive motion tempo corresponding to the music tempo of the music to be played, the user can perform an optimal exercise.

  In FIG. 1, 1 is a music data acquisition unit and 2 is a data storage unit. The music data acquisition unit 1 acquires desired music data selected by the user from the music database via the Internet and a personal computer, or a large number of music data recorded on a medium such as a hand-held CD (Compact Disk). The desired music data is acquired from the data, and the acquired music data is stored and stored in the data storage unit 2.

The music data acquisition unit 1 stores the original music tempo value in the data storage unit 2 together with the music data when acquiring the music data. When music data is subjected to time-axis compression / decompression processing, the music tempo changes significantly. The original music tempo means the music tempo in the original waveform data that has not been subjected to such processing.
If the music tempo value is not included in the acquired music data file, the original music tempo is extracted by automatically analyzing the music data. The automatic analysis is performed by an external device such as a personal computer or the music data acquisition unit 1 of this device.

Further, when acquiring the music data, along with the music data, the music tone of the music data (hereinafter, the digitized one may be referred to as a music tone evaluation parameter) is stored in the data storage unit 2.
The tone of music generally represents a psychological feeling received from the contents (music) of music data. For example, in the patent document (Japanese Patent Laid-Open No. 2002-278547), “severeness, goodness, refreshingness, simplicity, softness” is exemplified as “subjective impression of music”.
In the patent document (Japanese Patent Application Laid-Open No. 2003-132805), “search keyword” includes “cheerful music”, “music to be cut”, and “music to be heard”.
In the patent document (Japanese Patent Application Laid-Open No. 2005-209276), examples of “sensitivity words” include “noisy”, “quiet”, “bright”, “sad”, “healed”, and “settlement”. Yes.

In the use in the free mode and the assist mode, music playback is performed in association with repetitive motion, so that the “musical tone” of the music data focuses on one viewpoint of making the music tempo feel fast and slow. The evaluation value (one-dimensional numerical value) is calculated as a “musical tone evaluation parameter”. In the specification of the present application, this “musical tone evaluation parameter” is named “excite degree”.
Even if the music tempo values are the same, it is known that when people listen, the music tempo is heard as if there is a difference in the music tempo, "rhythmic songs", "bright songs", "smooth songs""Belongsto" up-tempo music ".
On the other hand, “relaxing songs” or “relaxing songs” relatively belong to “downtempo songs”.

Therefore, “excite degree” is defined as a music tone evaluation parameter in which, for example, 100 is the one that makes the music tempo feel the fastest, and 1 is the one that makes the slowest feel. This “excite degree” is close to the evaluation of brightness “bright-dark”. This assessment is closely related to whether or not it is motivated.
The larger the song evaluation parameter value, the faster the music tempo is, the more motivated and energetic, the lower the song evaluation parameter value, the slower the music tempo, the less motivated It is a calm tone.

In the above-mentioned patent document (Japanese Patent Application Laid-Open No. 2002-278547), a plurality of physical features of an acoustic signal (spectrum variation, average number of pronunciations, pronunciation aperiodicity, beat period, beat period ratio, beat intensity 1, beat (Strength 2, beat intensity ratio) is extracted, converted into an impression value obtained by quantifying the subjective impression of the music, and registered in the music database.
Therefore, a correlation coefficient between a plurality of physical feature amounts of an acoustic signal when music data is reproduced and the above-mentioned “excite degree” is designed in advance. Next, if a plurality of physical feature amounts of an acoustic signal are detected for a certain music data, and the sum is calculated by multiplying each physical feature amount by the respective correlation coefficient, the “excite degree” of the music data is calculated. The value is calculated.

Further, in the patent document (Japanese Patent Laid-Open No. 2005-209276), the chord change degree (three types), beat, beat maximum level, average amplitude level, maximum amplitude level, and key are described as characteristic values of music data. Yes.
In this case, a correlation coefficient between a plurality of feature values when music data is reproduced and the above-mentioned “excite degree” is designed in advance. Next, if a plurality of feature values are detected for a piece of music data, and the sum is calculated by multiplying each feature value by the respective correlation coefficient, the “excite degree” value of the music data is calculated.

Further, in the patent document (Japanese Patent Laid-Open No. 2003-132805), index values for feature words such as “brightness”, “darkness”, “fun”, “energetic”, “goodness”, etc., are given for music. Are listed.
In this case, a correlation coefficient between the above-described feature word and the above-mentioned “excite degree” is designed in advance. In addition, index values of a plurality of feature words are set for each music data. As a result, if the sum is calculated by multiplying each index value by the respective correlation coefficient, the “excite degree” value of the music data is calculated.

In the “music listening” mode, since there is no relevance to repetitive motion, it is not necessary to limit the musical tone to the “excite degree” described above. The user may instruct the tune.
Also, a plurality of music tones determined from a plurality of viewpoints, and values of respective music tone evaluation parameters may be set for each music data. In this case, when instructing the “musical tone” of the music data to be reproduced, the value is calculated for a plurality of “musical tone evaluation parameters”, and each value is evaluated individually, or the sum of each value is finally calculated. It may be evaluated as a total value of a simple tune.

The data storage unit 2 described above also stores data for music selection processing such as the number of reproductions of each music data and reproduction priority points.
The music data stored in the data storage unit 2 is preferably in a waveform data format.
However, it may be a performance data format in which music is recorded with performance data representing the pitch and length of notes such as MIDI sequence data.
However, even in the performance data format, the file includes the music tempo value. The value of the music tempo is a value that is intentionally set in advance, such as the value of the music tempo when the electronic musical instrument is played when the performance data is generated. When playing the performance data, as a general rule, the music data is played back at a music tempo value set in advance.
In the case of performance data format, changing the music tempo value does not change the pitch. Therefore, there is no sense of incongruity even if the value of the music tempo at the time of reproduction is changed within a small range from the set music tempo.
When it is allowed to change the music tempo value during playback from the set music tempo value, the music data in the performance data format is replaced with the music tempo value that is allowed during playback instead of the music tempo value itself. A range (for example, a maximum value and a minimum value of the range) may be included.
There is also a method in which a plurality of performance data format music data is not stored in the data storage unit 2 in advance. When conditions (music tempo values and / or music tone evaluation parameter values) are instructed by the music tempo and music tone instruction unit 6, music data in a performance data format that satisfies the specified conditions is automatically generated (automatic music) and automatically generated. The music data may be stored in the temporary storage unit of the data storage unit 2.

Reference numeral 9 denotes an operation detection unit that detects various operations by the user, and outputs the operation detection output to the setting unit 3 and the like. In an actual apparatus, a number of functions can be set with a small number of switches by performing a setting operation using a menu display method.
Reference numeral 3 denotes a setting unit which sets parameter values for controlling a music tempo instruction unit 6 and a reproduction control unit 7 to be described later by various operations described above, and stores them in the memory in the setting unit or the data storage unit 2. To do. The parameters include, for example, the current mode, user personal information (including physical information), initial music tempo, and target exercise intensity.

Reference numeral 4 denotes a repetitive motion tempo detection unit that detects a repetitive motion tempo when the user is walking or running. Used in free mode. For example, it is detected how many times a step (one step) without distinguishing between the right foot and the left foot occurs per unit time (eg, 1 minute).
The repetitive motion tempo detection unit 4 removes a repetitive motion tempo value that has fluctuated greatly temporarily, or takes a moving average value over several steps.
Reference numeral 5 denotes a heart rate detection unit, which detects a heart rate during repetitive exercise while the user is walking or running. Used in assist mode. Since the heart rate and the pulse rate are the same value, the terminology is unified into the heart rate in the embodiment of the present invention.

Reference numeral 6 denotes a music tempo and music tone instruction unit which instructs at least the value of the music tempo to the reproduction control unit 7 in the free mode and the assist mode. When instructing the value of the music tempo, the value of the music tone evaluation parameter suitable for the exercise state may also be instructed.
In addition to this, the music tempo and music tone instruction unit 6 may instruct only the value of the music tone or music tone evaluation parameter in the music listening mode.
The music tempo / musical tone instruction unit 6 acquires data such as a reproduction position, a music tempo value, and a musical tone evaluation parameter value of the music data currently being reproduced from the data storage unit 2.

Reference numeral 7 denotes a reproduction control unit having a reproduction control function similar to that of a conventional music data reproduction apparatus such as an MP3 player, and a music tempo value and / or music tone evaluation parameter designated by the music tempo and music tone instruction unit Is selected from a plurality of music data stored in the data storage unit 2 and is reproduced by the music data reproduction unit 8.
The music data reproduction unit 8 reproduces the music data selected by the reproduction control unit 7 at the original music tempo regardless of whether the music data is in the waveform data format or the performance data format, and the acoustic signal is reproduced by a speaker or headphones. Output to.

The music tempo and music tone instruction unit 6 selects an arbitrary song from a plurality of music data stored in the data storage unit 2 in the music listening mode, and starts playback, pauses playback, Exit.
In addition, it has functions such as album playback (sequential playback of a plurality of songs in a predetermined order, for example, the order stored in the data storage unit 2), shuffle playback (sequential playback of a plurality of songs in a random order), and the like.

In the free mode, the music tempo and music tone instruction unit 6 instructs a music tempo having a value corresponding to the value of the repetitive motion tempo detected by the repetitive motion tempo detection unit 4, as will be described later with reference to FIG.
More specifically, the music tempo / musical tone instruction unit 6 uses the value of the repetitive motion tempo detected by the repetitive motion tempo detection unit 4 as the music tempo of the music data that is actually reproduced by the music data reproduction unit 8. When the value deviates from the predetermined range based on the value, the music tempo having a value that matches the repetitive motion tempo value described above is indicated.

Alternatively, the music tempo and tune indication unit 6 continues the state where the value of the repetitive motion tempo is out of the first predetermined range from the value of the music tempo of the music data currently being reproduced. A music tempo having a value corresponding to the value of the repetitive motion tempo when the state where the fluctuation falls within the second predetermined range may be indicated.
The reproduction control unit 7 is substantially the same value as the music tempo value instructed by the music tempo and music tone instruction unit 6 (including the instructed value itself), more specifically, based on the instructed music tempo value. Music data having a music tempo within a predetermined range is selected from a plurality of music data stored in the data storage unit 2, and the music data reproduction unit 8 reproduces the selected music data.
When playing music data in the performance data format in which the range of music tempo values allowed at the time of playback is set, the performance data format in which the range of music tempo values including the designated music tempo value is set is played. What is necessary is just to select music data.

Here, the value of the music tempo may be equal to the value of the repetitive exercise tempo, but the music tempo is frequently changed, making it difficult to listen to music.
Therefore, the music tempo and music tone instruction unit 6 may not instruct to change the music tempo value until a predetermined time (for example, 30 seconds) has elapsed after the reproduction of the newly selected music data is started. In this case, the music tempo value is not instructed to change for the music data to be reproduced first at the start of exercise until the predetermined time described above has passed.
The data storage unit 2 may not store any music data (waveform data format music data) having a music tempo equal to the instructed music tempo value. Therefore, the one within the predetermined range is selected.
Therefore, when a sufficient number of music data (waveform data format music data) having a music tempo equal to the designated music tempo value is stored, music having a value equal to the designated music tempo value is stored. Only music data having a tempo may be selected.

When the music tempo value indicated by the music tempo and music tone instruction unit 6 is not changed, the reproduction control unit 7 changes the previously selected music data until the reproduction end position of this music data (see FIG. 4). When the music data playback unit 8 plays back the music data and reaches the playback end position of the music data, the playback of the next newly selected music data is started.
Therefore, the reproduction control unit 7 sets a plurality of music data stored in the data storage unit 2 to the next music data having a music tempo that is substantially the same value as the music tempo and the music tempo instruction unit 6. Select from data.

On the other hand, in the assist mode, as will be described later with reference to FIGS. 10 to 12, the music tempo and music tone instruction unit 6 uses the initial music tempo value set by the setting unit 3 as an initial value, and a heart rate detection unit. The music tempo value is set so that the difference between the actual heart rate [bpm] detected by 5 (actual exercise intensity) and the target heart rate [bpm] corresponding to the target exercise intensity set by the setting unit 3 is small. Instruct. At that time, the music data playback unit 8 indicates, for example, a value obtained by raising or lowering the percentage by the music tempo value of the music data currently being played back.
If the user changes his / her repetitive exercise tempo to match the music tempo, the actual heart rate is induced to approach the target heart rate corresponding to the target exercise intensity, so the user can perform repetitive exercise at the target exercise intensity. become able to.

More specifically, the music tempo and music tone instruction unit 6 sets the value of the music tempo to be instructed when the actual heart rate exceeds the first predetermined range from the target heart rate (when it falls within the warning range). In order to reduce the difference between the actual heart rate and the target heart rate corresponding to the target exercise intensity, the value is immediately changed based on the value of the music tempo of the music data currently being reproduced. The reproduction control unit 7 newly selects music data having a music tempo having a value corresponding to the designated music tempo and causes the music data reproduction unit 8 to reproduce it.
On the other hand, when the playback section of the music data currently being played ends, the second predetermined range (the actual heart rate is within the first predetermined range described above from the target heart rate corresponding to the target exercise intensity) If it exceeds the appropriate range, the music tempo of the music data being played is set so that the difference between the actual heart rate and the target heart rate corresponding to the target exercise intensity is reduced. The music data having the music tempo corresponding to the changed music tempo value is played back to the playback control unit 7 after the playback section of the music data currently being played ends. To instruct. The reproduction control unit 7 newly selects music data having a music tempo value corresponding to the changed music tempo value, and causes the music data reproduction unit 8 to reproduce it.
When the actual heart rate does not exceed the second predetermined range (appropriate range) described above from the target heart rate corresponding to the target exercise intensity by the end of the playback section of the music data currently being played back The music tempo and music tone instruction unit 6 directly instructs the music tempo value that has been instructed so far. The reproduction control unit 7 receives the next music data having a music tempo substantially the same as the value of the music tempo instructed by the music tempo and tune key designating unit 6, of the plurality of music data stored in the data storage unit 2. Choose from.

Here, another specific example will be described. When the actual heart rate exceeds the first predetermined range (when it reaches the warning range), the music tempo and tune indication unit 6 has the music data that is currently being reproduced, as in the specific example described above. Change immediately based on the music tempo value. Further, the music tempo and music tone instruction unit 6 also displays the music data that is actually being reproduced even when the actual heart rate is within the first predetermined range and exceeds the second predetermined range (appropriate range). It may be changed immediately based on the value of the music tempo. In this case, the amount of music tempo change (for example, the change rate [%]) is set to a value smaller than that in the warning range.
In this specific example, as mentioned earlier in the description of the playback control unit 7, after starting the playback of the first music data at the start of exercise and after starting the playback of the newly selected music data, a predetermined time (for example, 30 seconds), if the music tempo and tune indication unit 6 does not instruct to change the music tempo value even if the actual heart rate exceeds the first and second predetermined ranges, the playback music Data changes can be prevented from occurring frequently.

The initial music tempo value described above is set at the start of repetitive exercise.
The target heart rate (target exercise intensity) described above is set to a predetermined constant value during the main exercise period of repetitive exercise. In the motion start stage of repetitive motion, it increases in proportion to the elapsed time from a predetermined initial value, and reaches the predetermined constant value described above when the main motion period of repetitive motion is reached. In the exercise end stage of the repetitive exercise, it is set so as to decrease from the predetermined constant value described above in proportion to the elapsed time and to have a predetermined final value at the end of the exercise.
In the above description, the music tempo and music tone instruction unit 6 compares the actual heart rate with the target heart rate corresponding to the target exercise intensity, but the heart rate [bpm] and the exercise intensity [%] (predicted maximum heart rate Since it is possible to convert “percentage of reserve capacity”, the actual exercise intensity and the target exercise intensity may be compared.
In the present specification, when the target heart rate and the heart rate (actual heart rate) are referred to, these include cases where the target heart rate and the exercise strength (actual exercise strength) are converted and compared.
Note that the playback control unit 7 may play the music data for connection before switching to the playback of the newly selected music data from the currently played music data.

FIG. 2 is an explanatory diagram showing functions realized by the configuration shown in FIG.
In one embodiment, there are three modes: a music listening mode, a free mode, and an assist mode. Some functions are not applicable depending on the mode. Even if it is applicable, it can be set not to be applied. Therefore, O / X is indicated when applicable. The notation Δ / x indicates that some functions are applicable.
Each function will be described below with reference to the block diagram of FIG.

  The first function is a function for preferentially reproducing either music data format or performance data format as music data to be reproduced. Applicable to all modes. The value of the priority selection probability can be set by selecting one of a plurality of preset values prepared in advance using the operator, for example.

The second function is a function of selecting a music to be reproduced next by designating a music tempo and / or music tone that is substantially the same as the music tempo and / or music tone of the music data currently being reproduced. As for the music tempo, for example, music data having a value within a range of ± 3% of the music tempo value [bpm] currently being reproduced is selected.
When the music data is being reproduced, the user operates the hold operator when he / she feels it is a comfortable song that matches his mood and desire to exercise.
Although applicable in all modes, it is common to apply to the music listening mode.
However, in the assist mode, the music tempo is instructed according to an exercise plan suitable for the user, and this hold operation fixes the music tempo value to the same value as the music tempo of the currently played song. In this case, the original function is impaired. Therefore, there are cases where it is better to apply the hold function only to the tune, or to prohibit the application entirely. However, it can also be used as a function for temporarily stopping the assist mode.

The third function is a function that learns a user's favorite song, selects and plays a favorite favorite song with priority. This function allows a user to indicate whether a song is currently being played or not, so that a song having a higher user preference is played with a higher playback probability at the time of subsequent music selection.
This function is applicable to all modes. However, when there are conditions such as the instructed music tempo and / or tone, this function is played with a higher playback probability for songs that satisfy these conditions and that have a higher user preference among the playback candidate data. So that

A configuration for realizing the third function will be described below with reference to FIG.
The user performs an operation to increase the playback priority when the music data being played is suitable for his / her preference with respect to the music data currently being played, and the playback priority is set when the user feels that the music data is not preferred. Perform the lowering operation.
The setting unit 3 sets a playback priority for each of the plurality of music data stored in the data storage unit 2 and increases the playback priority detected by the operation detection unit 9 during playback of the music data ( For example, the music data playback unit 8 changes the playback priority currently set for the music data currently being played back in response to a cueing operation) or an operation for lowering the playback priority (for example, a skip operation).
The playback priority point may be increased each time an operator that increases the playback priority is operated, and the playback priority point may be decreased every time an operator that decreases the playback priority is operated. The playback priority makes it easier for the music data preferred by the user to be played when music data is selected from the next time onward, and makes it difficult for music data not preferred by the user to be played back.

The reproduction control unit 7 selects the music data stored in the data storage unit 2 or the reproduction candidate music data satisfying a predetermined condition according to the reproduction priority set for each reproduction candidate music data by the setting unit 3. The music data is selected according to the reproduction probability and is reproduced by the music data reproduction unit 8.
When the operation detection unit 9 detects a skip operation, the reproduction control unit 7 stops reproduction of the music data currently being reproduced and starts reproduction of the next music data. This skip operation can be interpreted as an intention to dislike the music data being played back. Therefore, the operation for lowering the playback priority may be a skip operator operation.
When the operation detecting unit 9 detects a cueing operation, the reproduction control unit 7 starts reproduction of the music data currently being reproduced from the head position of the music data.
This cueing operation can be interpreted as an intention to prefer the music data being played back. Therefore, the operation for raising the playback priority may be the operation of the cue operator.

The reproduction priority value described above is stored in the data storage unit 2 in association with each music data together with a plurality of music data, for example.
The setting unit 3 updates the reproduction priority of each music data by rewriting the reproduction priority of each music data stored in the data storage unit 2.
The reproduction control unit 7 obtains the reproduction priority set for each reproduction candidate music data set by the setting unit 3 by reading the reproduction priority of each music data stored in the data storage unit 2. Can do.
Thus, by storing the reproduction priority in the data storage unit 2, the reproduction priority can be set according to the past operation history. The playback priority of each stored music data can be reset to the initial value.

The reproduction candidate music data described above may be all music data stored in the music data storage device. However, when there is a predetermined condition determined in advance, a part of the music data satisfies this condition.
In addition to the music tempo and tune described above, for example, there are reproduction histories (those with a small number of reproductions) as the above-mentioned predetermined conditions.

It should be noted that the operation for increasing the playback priority or the operation for decreasing the playback priority by the user is not limited to increasing or decreasing the priority each time the operator is operated.
As in the technique described in Patent Document 4 (Japanese Patent Laid-Open No. 2005-190640) described in the background art, the priority may be determined in accordance with the time length from the start of music data reproduction until the operation. Good. In this case, the playback priority set for the music data may be reset and a playback priority corresponding to the time length may be set again, or the time priority described above may be cumulatively added for each operation. May be increased or decreased.

Also, when the music data contains information on various characteristic elements such as music tempo, music tone, genre (music work classification), composer, lyricist, artist, performance time, etc., it is actually reproduced. Instead of setting the playback priority for the music data itself, the playback priority may be set for the contents of each feature element (or one feature element) of the music data currently being played.
The reproduction priority of each music data itself may be the sum of the reproduction priorities assigned according to the contents of the characteristic elements of the music data.
In this case, even if the music data is not currently being played back, the playback priority of the music data that is the same as the currently played music data or within the same value range is increased or decreased. . The content of this feature element may be expressed as a numerical value or a numerical value range.

More specifically, a playback priority is assigned to a music tempo range and a tune evaluation parameter range.
It is assumed that the music data currently being reproduced has a music tempo in the range of 145 or more and less than 155 and a music tone evaluation parameter in the range of 35 or more and less than 45. When an operation to increase or decrease the playback priority is performed, the playback priority of the music tempo range (145 or more and less than 155) and the music tone evaluation parameter range (35 or more and less than 45) are increased or decreased. The playback priority of any music data is the playback priority assigned to the range of music tempo of this music data (for example, 155 or more and less than 165) and the range of the tone evaluation parameter of this music data (for example, 35 or more and less than 45) ) Is the sum of the playback priorities assigned to.

The fourth function is a function for selecting a tune having a tone suitable for exercise.
Even if the music tempo values of a plurality of songs are the same, the psychological effect of the music tempo given to the user differs depending on the song. Therefore, when listening to music while exercising, it is a function that selects music on the condition of a tune suitable for the user's exercise in addition to the music tempo.
Applicable to free mode and assist mode.

The fifth function is a function for setting the value of the music tempo (repeated notification tempo) to a value suitable for the user when assisting exercise by reproducing (outputting) the music signal (notification signal).
In addition to being applicable to the assist mode, the correction of the music tempo (repetition notification tempo) value at the start of exercise and the fastest music tempo (fastest repetition notification tempo) value in repetitive exercise can also be applied in the free mode. is there.
Here, the fastest music tempo (fastest repeated notification tempo) will be described.
It is known that there is a fastest repetitive motion tempo suitable for a certain form of exercise (walking, jogging, etc.). For example, if the repetitive exercise tempo is increased during the walking exercise, it becomes impossible to maintain the walking exercise form, and it is desirable to exercise in the jogging exercise form.
The music tempo guides the user to exercise at the same repetitive motion tempo, so the fastest value, that is, the fastest music tempo (fastest repetitive notification tempo) is also set for the music tempo (repetitive notification tempo). However, the value needs to be suitable for the user.

In FIG. 1, exercise is supported by playing back music data, but it is not always necessary to play back music data. By generating a simple electronic sound, beat sound, or rhythm sound, or flashing the light emitting element, a notification signal having a repeated notification tempo is output.
In this case, in FIG. 1, “a data storage unit 2 and a music data reproduction unit 8 in which a plurality of music data are stored together with respective music tempos” is a notification unit, a reproduction control unit 7 is a notification control unit, a music tempo and a music tone instruction. The unit 6 becomes a functional block called a repeated notification tempo instruction unit.

FIG. 3 is an explanatory diagram showing the data structure of the data storage unit 2 shown in FIG.
As shown in FIG. 3A, the data storage unit 2 stores a plurality of music data files. The music data file has a waveform data format and a performance data format. For example, each music data file is filed. In the illustrated example, the area is divided for each data format, but may be mixed.
Waveform data formats include waveform data formats compressed by various compression methods such as WAV format (uncompressed waveform data format) and MP3 (MPEG-1 Audio Layer-III).
The performance data format includes a MIDI sequence format such as SMF (Standard MIDI File) in which a MIDI message and event timing data are described as a pair.
These music data files are managed by a music management data list. When the music management data list is not provided, the music management data of each music data file may be included in each music data file.

FIG. 3B shows an example of music management data for one music data file (waveform data format) in the music management data list.
The management number specifies the music data file. The song name is the song name of the music data. Copyright information such as composer name and artist name, and music genre name may be added. The type data indicates a waveform data format.
The music tempo is the original music tempo.

As described above with reference to FIG. 1, the music tone evaluation parameter is a numerical expression of the music tone (excite degree) of the music data.
The number of times of reproduction is the number of times this music data has been reproduced so far, and is a kind of reproduction history. Unless it is reset, it is saved even if the power is turned off. It may be reset at the end of one exercise period (session).
The reproduction priority (reproduction priority point) is a parameter that determines the reproduction probability when a plurality of songs are randomly selected and reproduced. During one session, the setting is changed according to an operation for raising the playback priority and an operation for lowering the playback priority, and is reset when the session ends. Alternatively, the data may be stored until the power is turned off, or may be stored until the power is turned off until the power is reset.

The music data start address (the start address of the music data file) and the music data length (the data length of the music data file) indicate the storage area of each music data file in the data storage unit 2.
If the storage area of the music data file can be referred to by the management number attached to the music data file, the music data head address and music data length need not be described.
The playback start position is the playback start position in each music data, the time (seconds) from the start position of the music data (song) or the clock (unit that subdivides the time of one beat, the time corresponding to one clock is music (Changes according to the tempo value).
The reproduction end position represents the reproduction end position in each music data in units of time or clock from the start position of the music data (song).

FIG. 3C shows an example of management data for a music data file (performance data format) in the music management data section.
This is the same as the waveform data format shown in FIG. The type data indicates the performance data format.
As described with reference to the data storage unit 2 of FIG. 1, the music tempo may describe a music tempo value or a range of music tempo values.

FIG. 4 is an explanatory diagram schematically showing the music contents of the music data stored in the data storage unit 2 shown in FIGS. 1 and 3.
This figure schematically shows how music is recorded in the music data file on the basis of the playback time axis.
4 (a) to 4 (d) show the music contents of the music data for each music length.
A music data file in an actual waveform data format includes a header, a tag, and the like in addition to waveform sampling data. The music data file in the performance data format also includes a header and the like. In FIG. 4, these additional data are ignored.

A song (music data) generally includes a prelude and a follower.
The introduction part is an introductory part played before entering the subject. In this specification, it simply means the beginning of a song. In the prelude part, there is a case where the music tone is different from the following parts in the composition method, and it is a music tone that feels the start of the music. Also, it may start from a silent period or play only with accompaniment.
The ending part is the part after the theme ends. In this specification, it simply means the end of a song. In the follower, there is a case where the tone of music changes greatly due to the composition method and the end of the song is felt. It may be an accompaniment performance or it may end in a silent period.

Therefore, in the free mode and the assist mode, the music data reproduction unit 8 reproduces the music data excluding the prelude part and the follower part. The reproduction start position and the reproduction end position are described in the music management data so that the prelude part and the follower part are excluded.
The prelude part and the follower part are preferably detected by automatic analysis of music, but may be determined simply by the length of time. For example, the prelude part is 20 seconds from the start position of the music data, and the follower part is 60 seconds after the end position of the music data.
On the other hand, in the music listening mode, it is preferable that the music data playback unit 8 plays back the music (music data) from the start position to the end position.
Hereinafter, the playback section in the free mode or the assist mode will be described.

The music shown in FIG. 4A has a predetermined reproduction time, for example, less than 1 minute. If the reproduction time length is too short, the music data is frequently switched and it becomes difficult to hear, so it is not a reproduction target in the embodiment of the present invention.
The music shown in FIG. 4B has a predetermined reproduction time of, for example, 1 minute to 3 minutes, and is to be reproduced.
The music shown in FIG. 4C has a playback time of a predetermined time, for example, more than 3 minutes, and is set as a playback target within a predetermined time of 3 minutes. In the example shown in the figure, a playback section is determined in which the start position of the follower part is the playback end position. Instead of this, a playback section whose playback start position is the prelude section end position may be determined.
However, when the number of songs having a certain music tempo value and the music tempo in the vicinity thereof is small, the maximum section excluding the prelude part and the follower part may be set as the playback section without setting an upper limit.

FIG. 4D is an example in which the music tempo changes in a song (music data) exceeding a predetermined allowable range (for example, ± 5 [%] or ± 3 [bpm]).
In this case, each playback section having a substantially constant music tempo is used as an independent song (music data) having a different music tempo. However, the condition is that each reproduction time is a predetermined value, for example, 1 minute or more and 3 minutes or less.
The music management data for the music data file in FIG. 4 (d) is different from that in FIGS. 4 (a) to 4 (c).
For example, different management numbers are assigned to the first and second playback sections. The music tempo and tune evaluation parameter indicate different values for the first and second playback sections.
The music data head address and music data data length indicate the same values for the first half of the management data and the second half of the management data. The playback end position of the first half playback section and the playback start position of the second half playback section coincide with the tempo change position.

FIG. 5 is a hardware configuration diagram for realizing the embodiment of the present invention shown in FIG.
As a specific example, a case where the present invention is realized as a portable music playback device incorporating an acceleration sensor is shown. This device is worn by the user near his / her waist or arm, and the heart rate detector for the earlobe is provided in the headphones.
In the figure, 11 is a CPU (Central Processing Unit), 12 is a flash ROM (Read Only Memory)
) Or a small and large-capacity hard magnetic disk. Reference numeral 13 denotes a RAM (Random Access Memory).

The CPU 11 implements the functions of the present invention by using firmware (control program) stored in the flash ROM 12. The RAM 13 is used as a temporary data storage area necessary for the CPU 11 to perform processing.
The flash ROM 12 is also used as the data storage unit 2 shown in FIG. 1, and stores a plurality of music data and a music management data list.
When the CPU 11 selects music data from the music data stored in the flash ROM 12, the CPU 11 temporarily stores the selected music data in the RAM 13. When reproducing the music data, the CPU 11 transfers the music data temporarily stored in the RAM 13 to the waveform reproduction unit 20.

An operation unit 14 is a push button switch for turning on / off the power source, making various selections and making various settings. Reference numeral 15 denotes a display unit, which is a liquid crystal display that displays setting input contents, music playback status, and results after exercise. In addition, a light-emitting diode may be provided to repeatedly turn on and blink.
The setting operation is performed by a menu selection method. Each time the menu button on the operation unit 14 is pressed, the menu items to be displayed on the display unit 15 are sequentially switched, and the setting contents in each menu item are pressed by, for example, pressing one of the two selection buttons or pressing both simultaneously. Select and press the menu button to confirm the selected settings.

  Menu items include music playback mode (music listening mode, free mode, assist mode), exercise type selection (walking, jogging, etc.) in assist mode, song selection order mode selection (album, random), hold Playback control such as hold release, cueing, skip, etc., selection of exercise pace (pace up, pace down), input of personal information (including body information), confirmation of changed setting data, and other settings.

Reference numeral 16 denotes a repetitive motion tempo detector. For example, it is a 2-axis or 3-axis acceleration sensor or a vibration sensor, and is built in the body of an exercise music player. The movement of the user's body, that is, the impact when one step (step) is advanced with the right or left foot is detected. The well-known thing currently used for the pedometer can be used.
The repetitive motion tempo detector 16 or the CPU 11 executes an algorithm for extracting the timing of the walking step based on the output of the acceleration sensor, measures the time length of one step, and calculates the repetitive motion tempo.

  Reference numeral 17 denotes a heart rate detector. A heart sound is detected, a pulse is detected, or a change in blood flow is detected, and a heart rate is substantially detected. In an embodiment of the present invention, a heart rate detector coupled with headphones to a cord is used, and the clip is attached to the earlobe only when the heart rate needs to be detected.

Reference numeral 18 denotes a master clock (MCLK) that determines the timing of processing executed by the CPU 11, and a real-time clock (RTC) that keeps operating even when the power is off.
The power source 19 is a built-in battery. An AC power adapter can also be used. In addition, power can be supplied from an external device via a USB terminal described later.
The music data reproduction circuit 20 receives music data selected by the CPU 11 and instructed to be reproduced from the RAM 13, converts it into an analog signal, amplifies it, and outputs it to a headphone, an earphone, a speaker 21 and the like.

The music data reproduction circuit 20 inputs digital waveform data and reproduces analog waveform data. If it is compressed waveform data, decompression processing is performed first to reproduce analog waveform data. The music data reproduction circuit 20 has a MIDI synthesizer function, inputs performance data, synthesizes a musical tone signal, and reproduces analog waveform data.
The music data reproduction circuit 20 may be realized by an individual hardware block according to the input data format. A part of the processing may be realized by executing a software program in the CPU 11.

The server device 23 includes a database that stores a large number of music data. The personal computer (PC) 22 accesses the server device 23 via the network, and the user selects desired music data and downloads it to its own storage device.
Next, when the downloaded music data does not include music tempo and music tone evaluation parameters, the personal computer 22 executes a program for analyzing them.

The music tempo and music tone evaluation parameters acquired by the analysis are stored in its own storage device together with the downloaded music data. Further, the music data is analyzed, and the other music management data shown in FIG. 3 is acquired and stored.
The personal computer (PC) 22 also analyzes music data stored in its own HD (Hard Disk) and music data taken from a recording medium such as a CD (Compact Disc), along with the music data, music tempo, Music management data such as tune evaluation parameters may be acquired and stored.
Techniques for automatically extracting music tempo by analyzing music data in the waveform data format are well known in Japanese Patent Application Laid-Open Nos. 64-21498 and 8-201542.

When acquiring the music data, the CPU 11 transfers the music management data from the personal computer 22 to the flash ROM 12 via the USB terminal and stores it.
When update firmware is prepared in the server device 23, the firmware stored in the flash ROM 12 can be updated via a personal computer.
A plurality of music data with music management data stored in the flash ROM 12 can be stored as preset data when the apparatus is shipped from the factory.

This device can also be realized as a mobile phone terminal or PDA (Personal Digital Assistant).
The device can also be implemented in a stationary manner for indoor exercise, for example when running on a treadmill.
The specific examples described above are all music playback devices. However, at least one of the music playback function, the data storage unit, and the music data writing function is provided in an external device, so that the music playback control function is provided. The present invention can also be realized as an apparatus having only the above.
Specifically, the music playback function, the music data storage function, and the music data acquisition function are realized by an existing music data playback device such as an MP3 player, and a music playback control interface is provided in the existing music data playback device. A device having only a music playback control function is externally attached via this interface.

  In the configuration shown in FIG. 5, the data storage unit 2 uses the flash ROM 12, but instead of this, a music data reproduction system is constructed with the storage device of the personal computer 22 as the data storage unit 2 of FIG. Or connecting to the server device 23 via the network without going through the personal computer 22 and constructing a music data reproduction system including the network using the database itself of the server device 23 as the data storage unit 2 in FIG. May be.

FIG. 6 is a flowchart of main processing showing an operation example of one embodiment of the present invention.
The CPU 11 shown in FIG. 5 executes processing of each step according to the firmware. The processing is started by turning on the power switch.
In S31, the apparatus is initialized. If there is an input operation in S32, the process proceeds to S33, and the device settings shown in detail in FIG. 7 are made.
In S34, when the reproduction flag is ON (S55 in FIG. 7 (device setting) described later), the process proceeds to S35, and the reproduction process shown in detail in FIG. 8 is executed.
In S36, when the music selection flag is ON (S69 in FIG. 8 (playback process) described later), the process proceeds to S37, the music selection process shown in detail in FIG. 13 is executed, and the process proceeds to S38. In S38, the number of reproductions of the selected music data stored in the music management data list (FIG. 3) is incremented by 1, the song selection flag is turned off, and the process returns to S32.

FIG. 7 is a flowchart for explaining S33 (device setting) in FIG. 6 (main processing).
The device setting is performed by a menu selection method, but in this flowchart, the processing will be described focusing on what is set.
If the input operation is the setting of the user's personal information (including physical information) in S41, the process proceeds to S42, and the input of personal information according to the user such as gender and calendar age is accepted. The input data is registered in the flash ROM (12 in FIG. 5) as personal information.

If the input operation is a pace-up operation or a pace-down operation described with reference to FIGS. 1 and 2 in S44, the process proceeds to S45. Only when the current playback is in the assist mode, the process proceeds to S46.
In S46, if it is a pace-up operation, the pace-up flag is turned on. If it is a pace-down operation, the pace-down flag is turned on, and the process proceeds to S47.
In S47, the exercise target parameters and physical information stored in the flash ROM (12 in FIG. 5) are rewritten, and the process proceeds to S48.

If the input operation is the skip operation or the cue operation described with reference to FIGS. 1 and 2 in S48, the process proceeds to S49.
If the input operation is a skip operation, the music data currently being reproduced is reduced by reducing (for example, -1) the reproduction priority point of the music data currently being reproduced in the music management data list (FIG. 3). Reduce the playback probability of.
Also, by turning on the skip flag, the reproduction of the music data currently being reproduced is stopped in S62 and S63 of FIG. 8 (reproduction processing) described later, and the song selection flag is turned on in S78.

On the other hand, if the input operation is a cueing operation, it is actually reproduced by increasing the reproduction priority point (for example, +1) of the music data currently being reproduced in the music management data list (FIG. 3). Increase the playback probability of music data.
When the cue flag is turned ON, the reproduction is resumed from the reproduction start position of the music data being reproduced at S64 and S65 in FIG. 8 (reproduction processing) described later.

In S50, if the input operation is the hold operation described with reference to FIG. 1 and FIG. This is instructed as a condition for selecting music data to be played, and the hold flag is turned ON.
The instructed music tempo is a selection condition in S122 of FIG. 14 to be described later, and the instructed music tone evaluation parameter is a selection condition in S132 of FIG. 16 to be described later.
If the input operation is mode selection in S52, the process proceeds to S53, and the instructed mode (music / listening mode, free mode, assist mode) is set.

If the input operation is a reproduction start operation in S54, the process proceeds to S55, and the reproduction flag is turned ON. While the reproduction flag is ON, the process proceeds from S34 to S35 of FIG. 6 (main process) described above, and the reproduction process of FIG. 8 is executed.
In S56, if the input operation is a reproduction stop operation, the process proceeds to S57, and the reproduction flag is returned to OFF.
In S58, processing is executed according to other operations.
The first function, which is described with reference to FIGS. 1 and 2, is an operation for setting a priority data format, an operation for setting whether to enable or disable the second to fifth functions, In the fifth function, there is an operation for determining and storing the corrected value of the exercise target parameter and the value of the physical information.

FIG. 8 is a flowchart for explaining S35 (reproduction process) in FIG. 6 (main process).
If it is the music listening mode, the process proceeds from S61 to S62.
If the skip flag is ON in S62, the process proceeds to S63, the skip flag is turned OFF, the process proceeds to S69, the music selection flag is turned ON, and the process returns to S36 in FIG. 6 (main process). As a result, playback of the current playback song is interrupted. From S36 in FIG. 6 (main processing), the processing proceeds to music selection in S37 (FIG. 13).

On the other hand, if the skip flag is OFF in S62 of FIG. 8, the process proceeds to S64, and if the cue flag is ON, the process proceeds to S65 and is stored in the RAM (13 in FIG. 5). The playback start position of the music data being played back is instructed to the music data playback circuit (20 in FIG. 5), the cue flag is turned off, and the process proceeds to S66.
In S66, the music data at the current playback position is played back by the music data playback circuit (20 in FIG. 5), and the process returns to FIG. 6 (main processing).
If the cue flag is OFF in S64, the process proceeds to S67, the next reproduction position of the music data currently being reproduced is instructed, and the process proceeds to S68.
In S68, if the current playback position is not the playback end position, the process proceeds to S66, and if it is not the playback end position, the process proceeds to S69, and the music selection flag is turned ON.

Next, in the free mode, the process proceeds from S61 to S70 and S71 described above. If the hold flag is ON, the process proceeds to S62, and the same process as the music listening mode described above is performed.
On the other hand, if the hold flag is OFF in S71, the process proceeds to S72, and the repetitive motion tempo of the user detected by the repetitive motion tempo detector (16 in FIG. 15) is acquired.

In S73, the music tempo in the free mode is instructed.
That is, the repetitive motion tempo is detected and a music tempo corresponding to the repetitive motion tempo is designated. This processing will be described using a specific example with reference to FIG.
If an instruction to immediately change the value of the music tempo is given in S74, the process proceeds to S69, and the song selection flag is turned ON. On the other hand, if there is no instruction to immediately change the music tempo, the process proceeds to S62, and the same process as in the music listening mode is performed.

Next, in the assist mode mode, the process proceeds from S61 to S70, S75, and S76. In S76, if the hold flag is ON, the process proceeds to S62, and the same process as in the music listening mode is performed.
On the other hand, if the hold flag is not ON in S76, the process proceeds to S77, and the heart rate of the user is acquired by the heart rate detector (17 in FIG. 5).
In S78, the music tempo in the assist mode is instructed. That is, the value of the music tempo is instructed according to the user's actual exercise intensity (or actual heart rate) and the target exercise intensity (or target heart rate).

This processing will also be described later using a specific example with reference to FIGS. There are cases where the music tempo value is instructed to be changed immediately, and when the currently played song ends and the next playback music data is selected, the music tempo value is changed and instructed. .
After the process of S78, the process proceeds to S74. When an instruction to immediately change the music tempo is given, the music selection flag is turned on at S69. The process proceeds and the same process as in the music listening mode is performed.
If the assist mode is not set in S75 described above, the process proceeds to S79, other processes are performed, and the process returns to S38 in FIG. 6 (main process).

FIG. 9 is an explanatory diagram showing S73 (instruction for music tempo in free mode) in FIG.
The repetitive motion tempo detector (16 in FIG. 5) outputs a step timing (start timing) for each step of walking. The CPU (11 in FIG. 5) measures the time (step time) required for one step of walking, and based on the measurement result, the number of walking steps per minute [bpm] (Beat Per Minutes: beats / minute) Is calculated as the value of the repetitive movement tempo. Actually, a moving average for a plurality of steps is taken.
On the other hand, the music tempo value of the song currently being reproduced is acquired. The unit of music tempo is also [bpm].

  In the illustrated example, it is assumed that the repetitive motion tempo is 125 [bpm] (black circle) and the music tempo of the music data A currently being reproduced is 123 [bpm] (white circle, one-dot chain line). The repetitive motion tempo value [bpm] is out of the predetermined range (1) (123 ± 3 [bpm]) from the music tempo 123 [bpm] and changes, for example, as shown by the arrow in the figure to 135 [bpm]. In this case, the repetitive movement tempo 135 [bpm] (broken line) is set as the value of the music tempo to be newly designated.

When a new music tempo value is instructed, the music selection flag is turned on in S69 through S73 and S74 in FIG. 8 (reproduction processing) described above.
As a result, a predetermined range (2) based on the newly designated music tempo 135 [bpm] (broken line) in S105 of FIG. 13 (tune selection), which will be described later, which is the process of S37 of FIG. 6 (main process). ) (135 ± 135 × 3% [bpm]), and satisfying other conditions (value of tune evaluation parameter, number of playbacks, playback priority points) to be described later after S104 Music data to be performed, in the illustrated example, music data B of 133 [bpm] (white circle) (one-dot chain line) is selected from music data stored in the flash ROM (12 in FIG. 5), and RAM (FIG. 5) is selected. 13). Thereafter, the predetermined range (3) (133 ± 3 [bpm]) centered on the music tempo 133 [bpm] of the newly selected music data B is compared with the repetitive motion tempo.

  On the other hand, in the song selection when the playback position of the music data A that is currently being played is the playback end position (FIG. 4), the music tempo value that was previously instructed (for example, the current repetitive motion tempo) If the hold flag is ON, the music tempo value 123 [bpm] of the music data A currently being played is selected. Is designated as the value of the music tempo of the music data to be reproduced next.

The predetermined ranges (1) and (3) described above are set to ± (predetermined difference) from the “music tempo value” of the music data currently being played back, but are substantially the same as this “music tempo value”. It may be within the range, and may be “music tempo value” ± (predetermined ratio% of this “music tempo value”).
On the other hand, the predetermined range (2) described above may be the repetitive motion tempo after change ± (predetermined difference). It may be substantially the same value as the repetitive exercise tempo after the change.

FIG. 10 to FIG. 12 are explanatory diagrams showing S78 (instruction of music tempo in assist mode) in FIG. 8 (playback processing) as a specific example.
FIG. 10 is an explanatory diagram illustrating an example of setting items for the setting unit 3 illustrated in FIG. 1.
FIG. 10A shows an outline of setting items. The personal information includes date of birth, sex, height, weight, resting heart rate, etc., and mainly relates to the assist mode.
The resting heart rate is the heart rate when waking up. This value is measured and input by a heart rate detector 17 (FIG. 5) attached to the apparatus, or a user inputs a value measured by a commercially available heart rate monitor.

The user must also enter the maximum heart rate, but the user usually does not know his / her maximum heart rate, so it is based on the calendar age obtained from the date of birth entered and the current date. And calculate using the following formula.
Maximum heart rate = 220-calendar age …………… (1)
Based on the resting heart rate and the maximum heart rate, n [%] of the predicted maximum heart rate reserve, that is, the heart rate corresponding to n% HR Reserve is calculated by the following equation.
Heart rate equivalent to n% HR Reserve =
(Maximum heart rate-Resting heart rate) x n / 100 + Resting heart rate ……… (2)
Here, the predicted maximum heart rate reserve (HR Reserve) is (maximum heart rate−resting heart rate).
n [%] is exercise intensity, which is a ratio based on the predicted maximum heart rate reserve. 0 [%] when the heart rate is at rest, and 100 [%] when the heart rate is at maximum.

The exercise intensity n [%] is converted by the following equation.
Exercise intensity n [%] =
(Heart rate-Resting heart rate) / (Maximum heart rate-Resting heart rate) x 100 (3)
Hereinafter, the heart rate actually measured by the heart rate detector (17 in FIG. 5) is referred to as the actual heart rate, and the exercise intensity converted by the equation (3) is referred to as the actual exercise intensity.

As the mode setting item, one of the music listening mode, free mode, and assist mode is selected. In the assist mode, one exercise form is further selected from the walking mode, jogging mode, running mode, and the like.
Other setting items include ON / OFF (valid / invalid) setting of various functions described in S58 of FIG. 7 (device setting), exercise time setting, and the like. When the set exercise time is over, the music data playback is ended or the cool-down stage is entered.
In the assist mode, an exercise plan suitable for the user is automatically determined based on the exercise form, personal information of each user, exercise time, and the like.

10 (b) and 10 (c) show items in which numerical values are specifically set according to the exercise plan when “jogging mode” or “walking mode” which is one exercise mode of the assist mode is selected. It is shown.
In the assist mode, one exercise period (session) starts from a warm-up phase, then ends in a main exercise phase and finally a cool-down phase.
The warm-up stage is a stage until a predetermined time elapses after the start of exercise. In this embodiment, the target exercise intensity is gradually increased. The cool-down stage is a stage from a predetermined time before the end of exercise to the end of exercise. In this embodiment, the target exercise intensity is gradually reduced.
Even in the free mode described above, a warm-up stage and a cool-down stage may be provided before and after the exercise stage instructing the music tempo following the repetitive movement tempo.

In the example shown in the jogging mode of FIG. 10B and the walking mode of FIG. 10C, the execution time and the optimal target exercise intensity for the user are set in each exercise stage.
In the main exercise stage of FIG. 10B, the target exercise intensity is a constant value of 70 [%], and in the warm-up stage, the target exercise intensity is 30 [%] as an initial value, and the target exercise intensity 70 in the main exercise stage is 70%. Up to [%], for example, linearly increases, and in the cool-down phase, for example, the target exercise intensity in the main exercise phase is reduced from 70 [%] to 50 [%] as the final value, for example, linearly.
In addition, if the instruction to change the music tempo value is not given until a predetermined time (for example, 30 seconds) has elapsed after the start of exercise, the target exercise intensity within the predetermined time (for example, 30 seconds) is the music tempo. Not reflected in value instructions.

In addition, an initial music tempo value 145 [bpm] is set as a music tempo instruction value for music data to be reproduced first at the start of exercise (also at the start of the warm-up stage).
An upper limit (the fastest music tempo value 200 [bpm]) is set to the music tempo value indicated by the music tempo and tune tone instruction unit 6 shown in FIG. As described regarding the fifth function with reference to FIGS. 1 and 2, it is known that there is a fastest value in the value of the repetitive exercise tempo according to the exercise form. An upper limit is set.
If the actual exercise intensity is 65% or higher, which is the lower limit of the appropriate range at the start of the cool-down phase, the music tempo is 7% lower than the playback music tempo of the currently played song. A value is indicated at the beginning of this cool-down phase.
About FIG.10 (c), since only setting values differ, description is abbreviate | omitted.

  In this embodiment, the user's actual exercise intensity (actual heart rate) is compared with a predetermined range based on the target exercise intensity (target heart rate) [%] from the start of exercise to the end of exercise. The exercise plan is set to support the user so that the music tempo can be changed and the exercise suitable for the user can be performed.

  FIG. 10D shows items displayed on the display unit (15 in FIG. 5) after the exercise is completed. The travel distance is calculated by calculating the stride from the height and multiplying it by the number of steps. The calorie consumption is calculated from the work amount. The amount of fat burning is calculated from the time when the actual exercise intensity is 70%.

FIG. 11 is a first explanatory diagram showing a specific example of S78 (music tempo instruction in assist mode) in FIG. 8 (playback processing).
The process for designating the music tempo value is as follows.
Based on the actual heart rate (HR) [bpm] detected by the heart rate detector 17 (FIG. 5), the actual exercise intensity [%] is calculated based on the equation (3) described above. In the following description, the actual heart rate is converted into the actual exercise intensity and compared with the target exercise intensity.
As the actual exercise intensity, it is desirable to use a value obtained by taking a moving average, for example, taking a moving average of about 20 seconds immediately before.
When the actual exercise intensity of the user in the current exercise elapsed time does not exceed the appropriate range from the target exercise intensity, the music tempo is not changed.

The example shown in the figure is a specific example of the motion in the main motion stage of the jogging mode. The target exercise intensity is 70 [%], and the appropriate range is 65 [%] or more and 75 [%] or less based on this. It is said. In addition, the range exceeding 85 [%] above and the range exceeding 55 [%] below is set as the warning range based on the target exercise intensity 70 [%].
The appropriate range and the warning range described above are determined by the difference from the “target exercise intensity”, but may be a predetermined ratio% of the “target exercise intensity” from the “target exercise intensity”.
In the warm-up stage of the jogging mode, the appropriate range is set to (current target exercise intensity −5) [%] or more and 75 [%] or less. The warning range is a range that exceeds 85 [%] and a range that exceeds (% at the current target exercise intensity −15) [%].
In the cool down phase of jogging mode, only the warning range is set, and the range exceeds 75%.

The actual exercise intensity is, for example, 67 [%] (actual heart rate 138 [bpm]) (black square) at the beginning, and from this value, 51 [%] (actual heart rate 120 [bpm]) (white square) As a result, the music tempo value is immediately changed so as to reduce the difference between the actual exercise intensity and the target exercise intensity when entering the lower warning range.
For example, the current music tempo indication value is 165 [bpm], and the music tempo 167 [bpm] (in the predetermined range (1) (165−165 × 0.03 or more and 165 + 165 × 0.03 or less) based on this value is used. Music data C having a white circle and a one-dot chain line is actually reproduced. At this time, the music tempo 167 [bpm] of the music data C is immediately increased by 5 [%] as shown in the figure, that is, a music tempo of 167 × 1.05 = 175 [bpm] (broken line) is designated.

  When a new music tempo value is instructed, the song selection flag is turned on in S69 through S78 to S74 in FIG. 8 (playback processing). As a result, the predetermined range (2) (175) based on the instructed music tempo value 175 [bpm] in S105 of FIG. 13 (music selection), which will be described later, shows details of S37 of FIG. 6 (main processing). Music data within ± 175 × 0.03) is selected and playback is started.

When the music data D having the music tempo value 177 [bpm] (white circle) satisfies the selection conditions other than the music tempo value in FIG. 13 (song selection), this music data D is finally selected and the music data D is selected. The data is reproduced in the data reproduction circuit (20 in FIG. 5).
On the other hand, when the actual exercise intensity is, for example, 87 [%] (actual heart rate 160 [bpm]) and enters the upper warning range, the music tempo indication value is set to the music tempo 167 [bpm]. ] Is immediately reduced by 5 [%] to indicate the music tempo.

If the user's actual exercise intensity (actual heart rate) does not fall within the warning range, the music data C is reproduced until reaching a predetermined reproduction end position. Before reaching the playback end position, the actual exercise intensity changes to 60 [%] (actual heart rate 130 [bpm]) and does not fall within the warning range, but if it is below the appropriate range, the music to be indicated The tempo value is changed according to the direction in which the actual exercise intensity has deviated.
In the example shown in the figure, the instruction value of the music tempo is increased by 5 [%] based on the music tempo 167 [bpm] (white circle) of the music data C currently being reproduced. On the other hand, when the value fluctuates above the appropriate range, the music tempo indication value is set to a value 5% lower than the music tempo value 167 [bpm] of the music data C, and the music data currently being played back This is a condition for selecting a music data to be played after the playback is finished.
On the other hand, when the actual exercise intensity is within the appropriate range, the next music selection is performed without changing the music tempo value to be instructed.

When the playback position of the music data C currently being played is the playback end position (FIG. 4), the song selection flag is turned on in S69 from S78 in FIG. 8 (playback processing) through S74 and S62 to S68.
As a result, in the processing after S105 in FIG. 13 (song selection) described later, the music tempo value 177 [bpm] is within the range of ± 3 [%] of the changed music tempo instruction value, and the music Music data D that satisfies selection conditions other than the tempo value is selected, and reproduction of the music data D is started.
Even when the reproduction is started, the process proceeds to S69, the music selection flag is turned ON, and the music is selected.

The predetermined ranges (1) and (2) described above are the “music tempo value” ± (predetermined ratio% of the “music tempo value”) that is currently instructed. It is good also as (predetermined difference). Any range that is substantially the same as the “music tempo value” may be used.
On the other hand, the instruction value of the music tempo may be a value obtained by adding or subtracting a predetermined value based on the music tempo of the music data C currently being reproduced.

FIG. 12 is a second explanatory diagram showing S78 (music tempo instruction in assist mode) in FIG. 8 (playback processing) as a specific example.
The music tempo initial value [bpm] and the fastest music tempo value specified at the start of exercise are based on the values of the setting items before exercise as described with reference to FIGS. 10B and 10C. Value is set.
Also, the value of the music tempo to be instructed is instructed according to the set value of the target exercise intensity.
Here, in the playback in the assist mode, the music tempo is suitable for the user in S78 of FIG. 8 (playback processing) by the pace up / pace down operation detected in S44 and S45 of FIG. 7 (device setting). Modify the value so that it can be indicated.

FIG. 12A is an explanatory diagram showing, as a specific example, processing for correcting and changing the value of the music tempo by a pace up / pace down operation. In the figure, the vertical axis represents the music tempo.
First, the correction of the initial music tempo will be described with reference to the lower part of FIG.
The initial music tempo value is set to 145 [bpm], which is instructed at the start of the warm-up stage, that is, at the start of exercise, and through S78 to S74 in FIG. Become.
As a result, the range (1) (145−145 × 0.03) centered on this initial music tempo value in the processing after S105 in FIG. 13 (song selection), which will be described later, shows the details of S37 in FIG. 6 (main processing). [Bpm] or more and 145 + 145 × 0.03 [bpm] or less), and music data that satisfies a selection condition other than the music tempo value, for example, music data E having a music tempo value of 146 [bpm] is selected.

When the user performs a pace-up operation or a pace-down operation, the pace-up flag or the pace-down flag is turned on in S46 of FIG. 7 (device setting).
If the pace up flag or pace down flag is turned ON within 30 seconds after the start of exercise in S78 of FIG. 8 (reproduction processing), the music tempo value is set to the music data E currently being reproduced. The tempo value 146 [bpm] is increased by 5% (146 + 146 × 0.05 [bpm]) or 5% decreased (146−146 × 0.05 [bpm]).
After this process is completed, the pace up flag or the pace down flag is returned to OFF.

In the example shown in the figure, the pace down flag is turned on within 30 seconds after the start of exercise, and the music tempo value is corrected to 139 [bpm].
In steps S78 to S74 in FIG. 8 (reproduction processing), the music selection flag is turned on in S69, and the processing after S105 in FIG. 13 (music selection), which will be described later, showing details of S37 in FIG. The corrected music tempo value has a music tempo value of 140 [bpm] within a range of ± 3% (2) centered on 139 [bpm], and selection conditions other than the music tempo value are also satisfied. The music data F is newly selected and its reproduction is started.
If the pace-up flag or pace-down flag is turned ON again within 30 seconds after the start of exercise, the music data currently being played, for example, the music tempo value 140 [bpm] of the music data F described above is used as a reference Next, the music tempo of a value increased by 5% or decreased by 5% is designated.

Next, the processing when the fastest music tempo value is instructed will be described with reference to the upper part of FIG.
When the fastest music tempo value 200 [bpm] in jogging mode is currently instructed, the music tempo is within the range (5) between 200−200 × 0.03 [bpm] and 200 + 200 × 0.03 [bpm] based on this value. Music data having a value is selected. For example, music data G having a music tempo of 198 [bpm] is selected.

When the pace-up flag is turned on, in S78 of FIG. 8 (playback processing), the music tempo value to be designated is a value obtained by increasing the music tempo value 198 [bpm] of the music data G currently being played by 5%. Change to correct. After finishing the process, set the flag back to OFF.
On the other hand, when the pace down flag is turned ON, the music tempo value to be instructed is set to a value obtained by lowering the music tempo value 198 [bpm] of the music data G currently being reproduced by 5%. After finishing the process, set the flag back to OFF.

The illustrated example is a case where the pace-up flag is turned on, and the music tempo value to be instructed is corrected to 208 [bpm].
In steps S78 to S74 in FIG. 8 (reproduction processing), the music selection flag is turned on in S69, and the processing after S105 in FIG. 13 (music selection), which will be described later, showing details of S37 in FIG. Music that has a music tempo value of 209 [bpm] within a range of ± 3% (6) centered on the indicated music tempo value of 208 [bpm], and that satisfies selection conditions other than the music tempo value Data H is newly selected and its reproduction is started.

If the pace up flag or pace down flag is turned ON again when the fastest music tempo value is currently instructed, the music data currently being reproduced, for example, the music tempo value 209 of the music data H described above is used. Based on [bpm], the music tempo of the value increased by 5% or decreased by 5% is designated again.
When the pace-up operation is performed, only the pace-down operation can be performed next. When the pace-down operation is performed, the pace-up operation can be performed next. Control may be limited.

Next, processing in the jogging mode will be described with reference to the center of FIG.
When 165 [bpm] is set as the current music tempo value, a song within the range (3) of ± 3 [%] from this setting value is selected. For example, music data I having a music tempo of 166 [bpm] is selected.
When the pace-up flag or pace-down flag is turned ON, the music tempo value to be instructed is immediately increased by 5% of the music tempo value of the music data I currently being reproduced in S78 of FIG. 8 (reproduction process). Alternatively, the value is reduced by 5%. After this processing is completed, the pace-up flag or pace-down flag is returned to OFF.

The illustrated example is a case where the pace-up flag is turned on, and the music tempo value to be instructed is set to 174 [bpm].
Through S78 to S74 in FIG. 8 (reproduction processing), the song selection flag is turned ON in S69. As a result, in the processing after S105 in FIG. 13 (music selection), which will be described later, showing details of S37 in FIG. 6 (main processing), a range of ± 3% centered on this music tempo value 174 [bpm] (4 ), The music data J having the music tempo value 176 [bpm] and satisfying the selection conditions other than the music tempo value is newly selected, and the reproduction thereof is started.
The predetermined ranges (1) to (6) in FIG. 12A are set to ± (predetermined ratio% of the “music tempo value”) from the currently designated “music tempo value”. The “music tempo value” may be ± (predetermined difference).

  As described above, when the user performs a pace up / pace down operation, the instruction value of the music tempo is immediately changed. However, even if the music tempo is changed immediately, the indication value of the subsequent music tempo value is still a value that allows the user's actual exercise intensity to be within the appropriate range based on the target exercise intensity. The person has to perform the pace-up / pace-down operation many times.

Therefore, in the assist mode, when the user performs a pace up / pace down operation, a process of changing the target heart rate is performed.
In the main exercise stage, the function may be limited so that the user performs a process of changing the target heart rate only for a pace up / pace down operation.
FIG. 12B is an explanatory diagram of processing for changing an exercise plan in the assist mode.
The current actual exercise intensity of the user is 67 [%] (actual heart rate 138 [bpm]). Here, if the user performs a pace-up operation or a pace-down operation, the music tempo of the music data to be reproduced is changed as shown in the center of FIG. Since the user changes the repetitive motion tempo following the music tempo of the music data to be reproduced, the actual heart rate of the user changes.

The value after change of the actual heart rate, which is detected after the pace up / pace down operation, in the illustrated example, 150 [bpm] is acquired. In order to detect the value after the change of the actual heart rate, for example, the value of the actual heart rate after a predetermined time estimated that the actual heart rate has changed may be detected.
Create an exercise plan in which the acquired actual heart rate value of 150 [bpm] is the target exercise intensity of 70 [%].
Thereafter, the music tempo value is instructed by correcting the exercise plan with the actual heart rate after the pace-up / pace-down operation as the target heart rate, and instructing the value of the music tempo.

In the example shown in the figure, the maximum corresponding to exercise intensity 100 [%] so that the actual heart rate 150 [bpm] after the pace up / pace down operation becomes the target heart rate corresponding to the target exercise intensity 70 [%]. Set the heart rate setting to 188 [bpm]. As a result, the conversion rate between exercise intensity and heart rate is changed.
Here, the above-mentioned maximum heart rate was estimated from the calendar age using equation (1). Therefore, changing the maximum heart rate as described above corresponds to changing the calendar age. In other words, the calendar age after the change is the physical fitness age, and the music tempo is designated according to the exercise plan according to the physical fitness age. In the illustrated example, the physical strength age is corrected to 32 years old.

In the subsequent period during the exercise period, the conversion rate between the exercise intensity and the heart rate is corrected. Therefore, even if the actual heart rate value is the same as before, the actual exercise intensity value changes. The value of the music tempo is indicated by determining whether the changed actual exercise intensity is within the appropriate range or the warning range based on the target exercise intensity that has not been changed.
When the actual heart rate is used, the actual heart rate is compared with the target heart rate corrected.

As described with reference to FIG. 12A, within 30 seconds after the start of the exercise, the music tempo of the music data F to be reproduced as a result of specifying the music tempo by correcting the initial music tempo value 145 [bpm] If the music tempo value 140 [bpm] is saved in the flash ROM (12 in FIG. 5) as the initial music tempo value (exercise target parameter) at the start of exercise, it will be exercised the next time or later. Sometimes an initial music tempo value modified according to the user's athletic ability can be used.
Even when the music tempo value specified by correcting the initial music tempo value 145 [bpm] is stored as the initial music tempo value at the start of exercise, the numerical value itself does not change much. However, it is preferable to store the value of the music tempo value of the music data that is actually reproduced and listened to by the user.

Similarly, the music tempo value 209 [bpm of the music data H to be reproduced as a result of specifying the music tempo by correcting the fastest music tempo in the exercise main stage described with reference to FIG. ] May be stored in the flash ROM (12 in FIG. 5) as the fastest music tempo value in the main exercise stage (which can also be said to be a kind of exercise target parameter) when one exercise period ends.
Even when the specified music tempo value is stored by correcting the fastest music tempo value, the stored numerical value itself does not change much. However, it is preferable to store the value of the music tempo value of the music data that is actually reproduced and listened to by the user.

  On the other hand, with regard to the correction of the music tempo in the main exercise stage described with reference to FIG. 12B, the corrected age value (physical information) is set to the user's age (physical age), and one exercise period is set. If it is stored in the flash ROM (12 in FIG. 5) when it is finished, the music tempo value will be specified in the next and subsequent exercises according to the exercise plan modified according to the user's exercise ability. . In place of the age value, the maximum heart rate (exercise target parameter) may be corrected and stored.

  The physical condition of the user changes from day to day. Therefore, a confirmation message is displayed after the exercise is finished, and the exerciser saves physical information such as the corrected initial music tempo value, exercise target parameters such as the fastest music tempo value in the main exercise stage, and the age (physical age) of the user. It is desirable to save the changed setting value when permitting.

FIG. 13 is a flowchart for explaining S37 (music selection process) in FIG. 6 (main process).
This process is performed in S69 of FIG. 8 (reproduction process) when an instruction to immediately change the music tempo is given at the time of disclosure of reproduction or when the music data being reproduced is at the reproduction end position. This is executed when the song selection flag is turned ON.
The conditions referred to for selecting music data are as follows. Those satisfying the higher order are registered in the reproduction candidate list, and the registered ones are narrowed down to those satisfying the next order.

The first condition determined in S101 to S109 relates to the first function described with reference to FIGS. This is a condition that the music data is in the data format (waveform data format or performance data format) in which the priority probability is set in advance, and the music data has substantially the same music tempo as the designated music tempo value.
The second condition determined in S111 to S112 is a condition that music data with a small number of reproductions so far is selected.
The third condition determined in S114 is related to the second function and the fourth function described with reference to FIGS. The condition is that the music data has a music tone evaluation parameter substantially the same as the music tone evaluation parameter of the reproduced music data held by the user, or the music data has a music tone evaluation parameter suitable for exercise.
The fourth condition determined in S116 is related to the third function described with reference to FIGS.
This is a condition that music data is selected with a reproduction probability corresponding to a reproduction priority point obtained as a result of learning a song preferred by the user.

In the following, description will be given in order.
In S101, the reproduction candidate list is initialized.
In S102, if the setting is to prioritize the waveform data format (S58 in FIG. 7 (device setting)), the process proceeds to S103, and if it is the music listening mode, the process proceeds to S104 (in this embodiment, music If the tempo value is not a condition), the processing after S110 is performed on the waveform data format music data, and if not, the processing proceeds to S105.
In S105, among the plurality of waveform data format music data stored in the flash ROM (12 in FIG. 5), there is music data having the music tempo value within the specified range of the designated music tempo. It is determined whether or not.

Here, the value of the music tempo is instructed in S51 of FIG. 7, or in S73 or S78 of FIG. 8, as already described. There are cases where an instruction is given to change immediately, and there are cases where an instruction is given to select the next music data after the music data currently being reproduced has reached the reproduction end position.
As shown in a specific example with reference to FIG. 9, FIG. 11 and FIG. It is determined whether or not there is music data in the waveform data format having the music tempo value within the range of “instructed music tempo value” +3 [bpm] or less.
If there is at least one waveform data format having the music tempo value within the specified range, the process proceeds to S104. If not, the process proceeds to S106 even if the waveform data format has priority. Then, the music data in the performance data format is processed, and the processes after S110 are performed.

On the other hand, if the performance data format is prioritized in S102 (S58 in FIG. 7 (device setting)), the process proceeds to S107, and the priority selection probability is set (S58 in FIG. 7 (device setting)). If so, the process proceeds to S108, and priority is set according to the predetermined priority selection probability.
For example, if the selection probability of music data in the waveform data format is set to 75%, the process proceeds from S109 to S103 with a probability of 75%, and the process proceeds from S109 to S106 with a probability of 25%.

As a premise of the above-described processing, at least one piece of performance data format music data having a music tempo value substantially the same as the indicated music tempo value is stored for all possible music tempo values. ing.
Instead of storing a plurality of performance data format music data, music data in a performance data format having an instructed music tempo value may be automatically generated. When selecting a tune, music data in a performance data format having a tune to be instructed may be automatically generated.
When setting the range of the music tempo value in the music data in the performance data format in either the stored music data in the performance data format or the music data in the automatically generated performance data format, in S111 described later, The instructed music tempo value is selected within the range of the music tempo value set in the music data in the performance data format.

If the music listening mode is not set in S110, the process proceeds to S111, and the specified music tempo value is set to the same condition as in S105 described above (with the music tempo value within the predetermined range of the specified music tempo). Music data having a waveform data format or performance data format satisfying the above-mentioned music data and having a small number of reproductions is preferentially registered in the reproduction candidate list, and the process proceeds to S113. Details of this processing will be described later with reference to FIG.
On the other hand, if the mode is the music listening mode, the process proceeds to S112, and among all the music data, those with a small number of times of reproduction are preferentially registered in the reproduction candidate list. Since this process corresponds to the case where the music tempo is not designated in S111, detailed description thereof is omitted.
Note that whether or not to give priority to the one with the smaller number of reproductions may be set by a user's operation.

In S113, if the automatic tone selection function is ON (S58 in FIG. 7 (device setting)), the process proceeds to S114, and the music data registered in the reproduction candidate list is limited to those having the optimum tone.
In other words, the reproduction candidate music data registered in the reproduction candidate list in S111 or S112 is re-registered only for those having the music tone evaluation parameter having substantially the same value as the indicated music tone evaluation parameter value. Detailed processing will be described later with reference to FIGS. 16 and 17.

In S115, if random playback is ON (S58 in FIG. 7 (device setting)), the process proceeds to S116, and one or a plurality of music data registered in the playback candidate list is selected according to the playback priority point. One piece of music data is selected with the selected probability, and the process proceeds to S118. Detailed processing will be described later with reference to FIGS.
On the other hand, if random playback is OFF, the process proceeds to S117, and a predetermined condition such as a management number (management number in the music management data list shown in FIG. 3) is selected from the music data registered in the playback candidate list. The music data having the smallest value of) is selected, and the process proceeds to S118. Note that in S112, music data with a small number of times of reproduction is registered in the reproduction candidate list. Therefore, in the next processing in S112, the music data having the smallest management number is selected, and the management numbers are ordered. Will be played.
In S118, the music data selected in S116 or S117 is read from the flash ROM 12 in FIG. 5 and written in the RAM 13, and the process returns to S38 in FIG.

FIG. 14 is a flowchart for explaining S111 in FIG. 13 (music selection processing).
In S121, the process up to S125 is executed for all music data.
In S122, among the plurality of waveform data format music data stored in the flash ROM (12 in FIG. 5), a value substantially the same as the value of the instructed music tempo, in other words, a predetermined range of the instructed music tempo The music with the music tempo value is extracted one by one.

In S123, for example, the number of reproductions so far during the session (one continuous exercise period in the exercise mode and one continuous reproduction period in the music listening mode) is detected. The number of reproductions is stored in the music management data list shown in FIG.
When the number of reproductions is less than K times (K is a positive integer and the initial value is 1), the process proceeds to S124, and this music data is added to the reproduction candidate list, while the number of reproductions is K times. If it is above, the process proceeds to S125 without executing S124, and returns to S121 again. In S122, the next music data having a music tempo value within a predetermined range of the designated music tempo is extracted, Thereafter, the same processing is executed.

When K is the initial value 1, when all music data extracted in S122 within the specified range of the specified music tempo has not been played back, the process proceeds to S124, and this music is added to the playback candidate list. Data will be added.
When all the music data having a music tempo value within the specified range of the music tempo is completed, the process proceeds to S126. At this time, the number of music data pieces registered in the reproduction candidate list If there is more than one song, the process proceeds to S127, the value of K is returned to the initial value 1, and the process returns to S113 in FIG.

  However, if there is no music data registered in the playback candidate list, that is, if all music data within the specified range of the specified music tempo has been played once or more, the process proceeds to S128. Then, K = K + 1 = 2 is set, the process is returned to S121 again, and the processes of S121 to S126 are executed again. In the second iterative process, music data having the number of reproductions of 2 is registered in the reproduction candidate list in S123.

In S126, when there is no music data registered in the reproduction candidate list, that is, when music data within the specified range of the designated music tempo has been reproduced more than twice, S128 The process is advanced to K = K + 1 = 3, the process returns to S121 again, and the processes of S121 to S126 are executed again.
As a result of the same iterative process, the music data having the smallest number of reproductions in the past session among the music data within the specified range of the designated music tempo will eventually have at least one song (with the smallest number of reproductions). A plurality of music data may be present), and are registered in the reproduction candidate list.

FIG. 15 is an explanatory diagram showing the process in the flowchart of FIG. 14 as a specific example.
When the instructed music tempo value is 160, the number of times of reproduction is shown for music data within a predetermined range (-3% or more and +3 or less) and having a music tempo value of 155.2 to 164.8.
In the illustrated example, the smallest value of the number of reproductions is 1, so that the music data management numbers 04, 18, 23, 35, 67, 74, 79, 81 are registered in the reproduction candidate list.

FIG. 16 is a flowchart for explaining S114 in FIG. 13 (processing for limiting the music data in the reproduction candidate list to those having the optimal music tone).
In S113 of FIG. 13, the following processing is executed when the automatic tone selection is ON or when the hold flag is ON.
FIG. 17 is an explanatory diagram showing the processing in the flowchart of FIG. 16 as a specific example.
It represents the relationship between exercise and music tone evaluation parameters. In the example shown in the figure, the tune evaluation parameter (excite degree) is an integer value of 1 or more and 100 or less, and this range is divided into three regions.
That is, the range of the music tone evaluation parameter suitable for the warm-up stage is set to 70 to 100, and the music tone evaluation parameter value (value to be the uptempo) that makes the music feel fast is selected.
The range of the music tone evaluation parameter suitable for the cool-down stage is set to 1 or more and less than 30, and the value of the music tone evaluation parameter that makes the music tempo feel slow (the value that becomes the downtempo) is selected.
The range of the music tone evaluation parameters suitable for the normal stage is 30 or more and less than 70, and the middle range.

In S131 of FIG. 16, if the hold flag is ON, the process proceeds to S132, and a predetermined range based on the tune evaluation parameter of the music data currently being reproduced (for example, a range exceeding −5 to +5 or less). Instruct. In S133, the hold flag is returned to OFF and the process proceeds to S134.
On the other hand, if the hold flag is OFF in S131, the process proceeds to S135, and the exercise stage is determined in S135.
If the result of determination is that it is in the warming-up stage, the process proceeds to S136, and the range of tune evaluation parameters shown in FIG. 17 (from 70 to 100) is selected. If it is the cool-down stage, the process proceeds to S138, and the range of the tone evaluation parameters shown in FIG. 17 (1 to less than 30) is selected. In the other mode, that is, in this embodiment, in the main motion stage in the assist mode, the free mode, or the music listening mode, the process proceeds to S137 and the range of the tune evaluation parameter shown in FIG. 30 to less than 70).

Next, the process proceeds to S139, and it is determined whether or not the exercise stage described above has changed.
When the exercise stage changes, the process proceeds to S104, and the music tone evaluation parameter range selected in S136, S137, and S138 is instructed as it is suitable for exercise. If the exercise stage has not changed, the process further proceeds to S141 to determine whether or not the exercise pace has changed. In the music listening mode, it is determined that there is no change in the exercise pace.

In the free mode, the repetitive movement tempo detector 16 (FIG. 5) always detects the repetitive movement tempo in the free mode. Therefore, when the value of the repetitive movement tempo increases, it is determined that the movement pace has increased. When the repetitive exercise tempo value decreases, it is determined that the exercise pace has decreased.
On the other hand, if the repetitive exercise tempo is detected in the assist mode, it can be determined whether the exercise pace has increased or decreased as in the free mode.
However, if the repeated exercise tempo is not detected, it is determined that the exercise tempo has increased when the actual heart rate detected by the heart rate detector 17 (FIG. 5) increases, and the exercise tempo decreases when the actual heart rate decreases. It is determined that

By dividing the change rate of the exercise pace into three predetermined ranges, it is determined whether the exercise pace is paced up, kept, or paced down. Note that the set value of the relative range may be different between the free mode and the assist mode.
In S141, when the pace is up, the process proceeds to S142, and a predetermined relative range (relative range based on the current value) for changing the tune evaluation parameter from the current value at the time of pace up is selected.
In FIG. 17, seven current values a to e are illustrated as the current values of the music tone evaluation parameters according to the current exercise stage. In the example shown in the figure, the relative range is set to a range exceeding +5 and +15 or less from the current value of the tune evaluation parameter for the current values a to e in any range.

In S141, when keeping (exercise pace maintenance), the process proceeds to S143, and a predetermined relative range for changing the tune evaluation parameter from the current value is selected during keeping. For any of the current values a to e in any range, the relative range is set to a range of more than −5 and not more than +5 from the current value of the tune evaluation parameter.
On the other hand, when the pace is lowered, the process proceeds to S144, and when the pace is lowered, a predetermined relative range for changing the tune evaluation parameter from the current value is selected. For any of the current values a to e in any range, the relative range is set to a range of more than +5 and not more than +15 from the current value of the music tone evaluation parameter.

In S140 in which the process proceeds from S142 to S144 described above, the condition of the tone evaluation parameter range (absolute range) according to the exercise stage selected in S136 to S138 and the range (relative range) selected in S142 to S144. Those satisfying the above conditions at the same time are indicated as the range of the tone evaluation parameters suitable for the exercise.
Accordingly, the hatched area in FIG. 17 is excluded in order to move to the range of the tune evaluation parameter corresponding to the adjacent movement stage.

In the example shown in FIG. 17, there is no overlap in the range of music tone evaluation parameters suitable for the cool-down stage, normal stage, and warm-up stage. However, the range may be set so as to partially overlap.
Further, the relative range at the time of pace up, at the time of keep, and at the time of pace down is a positive / negative symmetric range centering on the current value, but it may be asymmetric in the positive and negative directions although it is based on the current value. Further, the width of the relative range may be different depending on the pace-up, keep-up, and warm-up.

In S134, the following processing up to S148 is repeatedly executed for all music data registered in the reproduction candidate list, and after the same processing is performed for all music data, the processing proceeds to S149. The reproduction candidate list is created so as to satisfy the conditions of the music tempo and the number of reproductions in S111 (FIG. 14) of FIG. 13 (music selection).
In S145, music data is extracted one by one from all music data listed in the reproduction candidate list.
In S146, it is determined whether or not the music tone evaluation parameter of the extracted music data is within the predetermined range of the music tone evaluation parameter instructed in S132 or S140. If it is within this range, the process proceeds to S147, and this music data is added to the temporary candidate list. If it is not within the predetermined range, the process returns from S148 to S134. This primary candidate list is used in the process from S134 to S148.

In S149, it is determined whether or not there is one or more music data in the temporary candidate list. If there is, the process proceeds to S150, and the contents of the reproduction candidate list are completely rewritten using the contents of the temporary candidate list to update the reproduction candidate list, and the process returns to S115 of FIG.
On the other hand, if no song is registered in the temporary candidate list in S149, the process proceeds to S151, and the predetermined range of the optimum tune parameter specified in S132 or S144 is set based on, for example, the center of the predetermined range. Increase width by 33%.

  In the next step S152, if the optimal tone parameter range after expansion is not the entire range of the optimal tone parameter (range of 1 to 100), in other words, the range of 1 to 100 must be included. For example, the process is returned to S134, and the process from S134 is executed again using the extended optimum tune parameter range as a new reference. If the optimal tune parameter range after expansion reaches the full range, it means that there is no music data with the optimal tune tone in the playback candidate list, so the original playback candidate list is not included in the condition of the tune evaluation parameter. The processing returns to S115 in FIG. 13 without changing.

  This will be described using a specific example shown in FIG. If the exercise stage is the main exercise period, the current music tone evaluation parameter value is the current value c (50), and the exercise pace change is “keep”, the range of the music tone evaluation parameter exceeds 45.55 It becomes as follows. As a result, the music data of management numbers 04, 18, 35, 79, and 81 are registered in the updated reproduction candidate list.

FIG. 18 is an explanatory diagram showing the processing of FIGS. 16 and 19 as a specific example.
In the specific example shown in FIG. 15, for the music data of management numbers 04, 18, 35, 79, 81 registered in the reproduction candidate list, the reproduction priority point and the reproduction probability corresponding to the reproduction priority point are set. The parameter value of the calculation process is shown.
The music management data shown in FIG. 3 describes playback priority points. The reproduction priority point is given an initial value when music data is taken into the flash ROM 12 (FIG. 5). Typically, the same value is uniformly given without considering the contents of the music data.
Even when the music data is shipped from the factory with the flash ROM 12 (FIG. 5) stored in advance, the same initial value is given as the playback priority point. In the illustrated example, the initial value is 10 points.

As described with reference to S48 and S49 in FIG. 7 (device setting), when a certain music data is being played, if there is a skip operation, the playback priority point is reduced and a cue operation is performed. When it was processing to increase the playback priority point.
For example, when the music data of the management number 18 is being played back and the playback priority point is 10, if a skip operation is performed, the playback priority point is set to −1 (a predetermined value is subtracted) and 9 Change to On the other hand, when the music data of the management number 79 is being played and the playback priority point is 11, when the cueing operation is performed, the playback priority point is incremented by +1 (the predetermined value is added) to 12. change.

While a plurality of music data are being reproduced, the reproduction priority points of each music data are updated by a skip operation or a cueing operation in the music management data lists of FIGS. 3B and 3C.
Note that the playback priority points are sequentially updated with the initial values stored at the flash ROM 12 by the user's skip operation and cue operation. Alternatively, when the power switch of this apparatus is turned on, all the playback priority points in the music management data list of FIGS. 3B and 3C may be reset to the initial values.
Alternatively, it may be set to an initial value according to a reproduction priority point reset operation or a user operation. The user may be provided with a setting function for giving arbitrary playback priority points to each music data.

FIG. 19 is a flowchart for explaining S116 (processing for selecting a song with a reproduction probability corresponding to the reproduction priority) in FIG. 13 (music selection).
In S161, the initial value of the reproduction probability parameter is set to zero. The reproduction probability parameter is a numerical value used as the denominator of the reproduction probability.
In S162, the process up to S166 is performed for all music data in the reproduction candidate list, and then the process proceeds to S167. As a result, the reproduction priority points of all music data are cumulatively added.
In S163, it is determined whether or not the function for learning the music preferred by the user (third function in FIG. 2) is ON (S58 in FIG. 7 (device setting)). If it is ON, the process proceeds to S164. Proceed.
In S164, for each music data registered in the reproduction candidate list shown in FIG. 18, the reproduction probability parameter is updated by adding the reproduction priority point to the reproduction probability parameter.

On the other hand, when the learning function described above is OFF, the process proceeds to S165, and a predetermined equal playback priority point is set to 1 for each music data registered in the playback candidate list (see FIG. 3), the playback priority point stored in the music management data list 3 is not updated), and the playback probability parameter is updated by adding a predetermined equal playback priority point to the playback probability parameter every time it is repeated. To do.
The process of S165 is for realizing uniform random selection by the process of S166 and subsequent steps. Instead, it is determined that the learning function is OFF before S162, and instead of the processing of S162 to S166, the reproduction probability of each music data is set to 1 / (the music data in the reproduction candidate list). (Number of songs).

The processing from S167 onward determines the reproduction probability of each music data using the value of the reproduction priority point updated according to the number of skip operations / cue operations performed on the music data being reproduced. This is a process for reproducing with a selection probability reflecting the user's preference.
First, in S167, one random value is generated. The random value is a uniformly distributed random number, and is set to take a value of 1 to 100 in the illustrated example.
In S168, the reproduction probability comparison value is initially set to 0. The reproduction probability comparison value is a numerical value for comparison with the random value obtained in S167, and is assigned to each music data by the following iterative process.

In S169, for all music data in the reproduction candidate list, the following processing up to S172 is repeated with the conditions shown in S172, and the processing proceeds to S173.
In S170, the reproduction probability of each song is calculated by the following equation.
Play probability (expressed in% in the example shown) = (play priority point / probability parameter) x 100
In S171, the value of the reproduction probability calculated in S170 is added to the reproduction probability comparison value.
In S172, while the random number value obtained in S167 is larger than the reproduction probability comparison value obtained in S171, the process returns to S169, but when the reproduction probability comparison value becomes larger, the process proceeds to S173. The management number when the repetition process is completed is acquired, and the music data of this management number is selected as music data to be reproduced.

FIG. 18 described above shows the loop count, reproduction probability, and reproduction probability comparison value when it is assumed that the repetitive processing has been performed for all music data without providing the condition of S172.
When the iterative process is executed in order from the first music data in the reproduction candidate list, when the loop count is 1 (first process), the reproduction probability 20 and reproduction probability comparison value 20 of the music data (management number 04) are Thereafter, when the number of loops is 5, the reproduction probability 20 of the music data (management number 81) and the reproduction probability comparison value 100 are calculated.

In the specific numerical values described above, for example, when the random number value 5 is generated in S167, when the number of loops is 1, the repetition process ends in S172, the process proceeds to S173, and the process at the end of the repetition process is completed. Get the management number. That is, the music data with the management number 04 is selected by the loop count 1.
If the random number 70 has been generated in S167, when the number of loops is 4, the repeat process ends in S172, the process proceeds to S173, and the management number at the end of the repeat process is acquired. That is, the music data with the management number 79 is selected based on the number of loops 4.

The random number generated in S167 uniformly generates a value from 1 to 100, whereas the interval between adjacent reproduction probability comparison values is proportional to the reproduction probability of the music data in the reproduction candidate list corresponding to this interval. It is a size. As a result, the probability of being selected in proportion to the value of the reproduction probability increases.
As a result, the music data that the user skipped during playback is less likely to be selected later, and the music that the user has cueed during playback is less likely to be selected later. growing.

In the above description, walking, jogging, and running have been described as examples of repetitive motion.
However, the present invention is suitable for listening to music while performing repetitive exercises such as exercise, gymnastics, and dance using a training machine such as a bicycle ergo meter, tredmill, strength machine, etc. Applicable. Depending on the type of repetitive motion, an acceleration sensor may be attached to an appropriate part of the human body, an acceleration characteristic to be one step of the iteration may be determined, and an algorithm for detecting this one step of the iteration may be designed.
In this case, in the free mode, instead of the walking pitch, a repetitive motion tempo (the number of repetitions per unit time) determined by one step time of repetition as a unit is detected according to each repetitive motion. In the assist mode, an initial value of the repetitive motion tempo is set instead of the initial value of the walking pitch. The target exercise intensity (target heart rate) is set similarly.

In the above description, the music content of the musical sound data has not been described. The music content is not limited to the musical instrument performance, but may be anything that can feel a beat, such as vocals only or vocals with accompaniment. If necessary, a music genre may be set, and music data having an appropriate music tempo may be selected within the set music genre.
The above description has been made on the assumption that a plurality of music data is reproduced at the music tempo. However, in the above description, the technique for instructing the music tempo according to the repetitive exercise tempo or the heart rate, and the technique for instructing the music tempo in the warm-up stage or the cool-down stage will be described with reference to FIGS. Similar to the fifth function, it is premised on a technique for changing the repetitive notification tempo of the notification signal or a technique for reproducing predetermined music data by changing its original music tempo as in the prior art. It can also be applied to cases.

It is a functional block diagram for demonstrating one Embodiment of this invention. It is explanatory drawing which shows the function implement | achieved by the structure shown in FIG. It is explanatory drawing which shows the data structure of the data storage part shown in FIG. It is explanatory drawing which shows typically the music content of the music data stored in the data storage part shown in FIG. 1, FIG. It is a hardware block diagram which implement | achieves one Embodiment of this invention shown in FIG. It is a flowchart of the main process which shows the operation example of one Embodiment of this invention. It is a flowchart explaining S33 of FIG. It is a flowchart explaining S35 in FIG. It is explanatory drawing which shows S73 of FIG. 8 by a specific example. It is explanatory drawing which shows an example of the setting item with respect to the setting part 3 shown in FIG. FIG. 9 is a first explanatory diagram showing S89 of FIG. 8 as a specific example. FIG. 9 is a second explanatory diagram showing S89 of FIG. 8 as a specific example. It is a flowchart explaining S37 of FIG. It is a flowchart explaining S111 of FIG. It is explanatory drawing which shows the process of FIG. 14 by a specific example. It is a flowchart explaining S114 of FIG. It is explanatory drawing which shows the process of FIG. 16 by a specific example. It is explanatory drawing which shows the process of FIG. 16, FIG. 19 by a specific example. It is a flowchart explaining S116 of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Music data acquisition part, 2 ... Data storage part, 3 ... Setting part, 4 ... Repetitive exercise tempo detection part, 5 ... Heart rate detection part, 6 ... Music tempo and music tone instruction | indication part, 7 ... Playback control part, 8 ... Music data playback unit, 11 ... CPU, 12 ... Flash ROM, 13 ... RAM, 14 ... Operation unit, 15 ... Display unit, 16 ... Repetitive motion tempo detector, 17 ... Heart rate detector, 20 ... Music data playback circuit, 22 ... Personal computer, 23 ... Server device

Claims (5)

A plurality of music data is stored in a music data storage device together with each music tempo , and the music data is selected from the music data storage device and played back on the music data playback device.
An operation detecting means for detecting an operation for raising the reproduction priority by the user or an operation for lowering the reproduction priority;
Music tempo instruction means for instructing the music tempo;
In accordance with an operation for setting a playback priority for each of the plurality of music data and raising or lowering the playback priority detected by the operation detection means during playback of the music data, A setting means for changing the playback priority set for the music data being played;
More the music tempo by the music tempo specifying means when indicated, to one or a plurality of music data having a music tempo of substantially the same value as indicated music tempo value, stored in the music data storage device from the music data, 1 is selected as the reproduction candidate music data, from among the reproduction candidate music data, in accordance with the reproduction probability corresponding to the reproduction priority set for each reproduction candidate music data by said setting means number of the music data is selected, the reproduction control means for reproducing the music data reproduction apparatus,
A music playback control device comprising:   A plurality of music data are stored in a music data storage device together with respective music tones, a music playback control device for selecting the music data from the music data storage device and causing the music data playback device to play back the music data,
  An operation detecting means for detecting an operation for raising the reproduction priority by the user or an operation for lowering the reproduction priority;
  A music tone instruction means for instructing a music tone;
  In accordance with an operation for setting a playback priority for each of the plurality of music data and raising or lowering the playback priority detected by the operation detection means during playback of the music data, A setting means for changing the playback priority set for the music data being played;
  When the music tone is instructed by the music tone instruction means, one or a plurality of music data having substantially the same music tone as the instructed music tone is reproduced from a plurality of music data stored in the music data storage device. Select as candidate music data, and select one piece of music data from the reproduction candidate music data according to the reproduction probability according to the reproduction priority set for each reproduction candidate music data by the setting means. , Reproduction control means for causing the music data reproduction device to reproduce,
  A music playback control device comprising:   A music playback control device, wherein a plurality of music data is stored in a music data storage device together with each music tempo and tone, and the music data is selected from the music data storage device and played back on the music data playback device,
  An operation detecting means for detecting an operation for raising the reproduction priority by the user or an operation for lowering the reproduction priority;
  Music tempo and music tone instruction means for instructing the music tempo and music tone;
  In accordance with an operation for setting a playback priority for each of the plurality of music data and raising or lowering the playback priority detected by the operation detection means during playback of the music data, A setting means for changing the playback priority set for the music data being played;
  When the music tempo and tune key are instructed by the music tempo and tune key instruction means, the music tempo and the tune key have a music tempo that is substantially the same value as the instructed music tempo value, and substantially the same tune key as the instructed music key. One or more music data are selected as reproduction candidate music data from a plurality of music data stored in the music data storage device, and each reproduction candidate is selected from the reproduction candidate music data by the setting means. Reproduction control means for selecting one piece of the music data in accordance with the reproduction probability according to the reproduction priority set for the music data, and causing the music data reproduction apparatus to reproduce the music data;
  A music playback control device comprising: The operation detection means detects the user's skip operation during reproduction of the music data,
The playback control means, when the skip operation is detected by the operation detection means, stops playback of the music data currently being played back and starts playback of the next music data,
The setting means lowers the reproduction priority set for the music data currently being reproduced when the skip operation is detected by the operation detection means.
Music playback control apparatus according to any one of claims 1 to 3, characterized in that. The operation detection means detects a cueing operation of the user during reproduction of the music data,
When the cueing operation is detected by the operation detecting means, the reproduction control means starts reproduction of the music data currently being reproduced from the start position of the music data,
The setting means raises the reproduction priority set for the music data currently being reproduced when the cueing operation is detected by the operation detection means.
Music playback control apparatus according to any one of claims 1 to 4, characterized in that.

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