JP2007156280A - Sound reproduction device, sound reproduction method, and sound reproduction program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reproduce a sound such as music so that a user can always have a sense of unity with one's own movements without being made to feel unnaturalness such as a sense of incompatibility. <P>SOLUTION: The operation tempo of the user is detected via a movement information sensor 24 and a movement information analysis circuit 23, and a control section 10 retrieves music data having a tempo corresponding to the operation tempo from a recording medium in a music information storage device section 21 and reproduces the music data. When music data having the tempo corresponding to the operation tempo of the user cannot be retrieved, the control section 10 controls a music reproduction data generation device section 22 to reproduce one of a beep sound, a MIDI sound, and automatically generated music data having a tempo corresponding to the operation tempo of the user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to, for example, a device having a function of reproducing sound, such as a hard disk player, an MD (Mini Disc (registered trademark)) player, a portable information terminal with a music data reproduction function, a method used in an apparatus for reproducing sound, Regarding the program.

  In recent years, along with the spread of miniaturized and lightweight portable sound reproducing devices, music has come to be heard in scenes that have not existed before. For example, take a portable sound player outdoors and listen to music while walking, or listen to music while doing sports such as jogging or walking for health maintenance, health promotion, dieting, etc. Is widely practiced.

  In this case, when the tempo of the music to be reproduced matches the tempo of the user's action (for example, exercise such as walking, jogging, walking, etc.), a sense of unity between the action and the music can be obtained. For this reason, even if the tempo of the music to be played is different from the tempo of the user's movement or the tempo of the user's movement is suddenly changed, the user's movement and music are integrated so that a sense of unity can be obtained. An apparatus that detects the tempo of an operation and changes the tempo of music to be played in accordance with the change of the tempo of the operation is considered.

  For example, in Patent Document 1 described later, a motion worn or walking pace data is obtained from vibration or walking step data accompanying movement by a detector worn by the user on the body, and the music playback tempo is set according to the change. An apparatus for changing is disclosed. By using such a device, it is possible to continue exercise or to exercise efficiently according to the music to be played.

The above-described Patent Document 1 is as follows.
Japanese Patent Laying-Open No. 2005-156641

  Incidentally, the invention described in Patent Document 1 described above changes the playback tempo of the music being played in accordance with the user's operation tempo, and the music playback tempo is always set to the user's operation tempo. Can be followed. However, in order to change the playback tempo of the music being played back, there may be cases where the user is provided with music having a transient tempo from the start to the end of the change. Also, since the music to be played is generally ready-made, it is considered that some music is unsuitable for changes in the playback tempo.

  In view of the above, the present invention can reproduce sound such as music so that the user can always feel unity with his / her movement without giving the user any unnaturalness such as discomfort. The purpose is to do.

In order to solve the above-described problem, the sound reproducing device according to the first aspect of the present invention provides:
Detection means for detecting a user's movement tempo;
Search means for searching for music data having a tempo in which the difference from the user's motion tempo detected by the detection means is within a predetermined range;
A first reproduction means for reproducing the detected music data when the search means detects music data having a tempo that is different from a user's operation tempo within a predetermined range;
When the search means does not detect tempo music data whose difference from the user's motion tempo is within a predetermined range, a predetermined sound with a tempo corresponding to the user's motion tempo is generated. Sound generation means;
And a second reproduction unit configured to reproduce the sound generated by the sound generation unit.

  According to the sound reproducing device of the first aspect of the present invention, the user's motion tempo (speed of motion) is detected by the detecting means, and the difference between the detected motion tempo and the detected motion tempo is within a predetermined range. Music data is retrieved by the retrieval means. When the search means detects music data having a tempo that is different from the user's operation tempo within a predetermined range, the detected music data is reproduced by the first reproduction means.

  In addition, if the search means cannot detect music data having a tempo that is different from the user's operation tempo within a predetermined range, the sound generation means uses a predetermined tempo corresponding to the user's operation tempo. A sound is generated, and the predetermined sound generated is reproduced by the second reproducing means.

  Thus, in principle, music data with a tempo that differs from the user's motion tempo within a predetermined range is searched and played, so that the user is not given any unnaturalness such as a sense of incongruity. The music can be played so as to obtain a sense of unity with the operation. Further, even when music data having a tempo that is within a predetermined range of the user's motion tempo cannot be detected, a predetermined sound with a tempo that is within the predetermined range of the user's motion tempo is detected. Is generated and is played back, so that the user can always play and provide some sound so that the user can get a sense of unity with the operation without giving any unnaturalness to the user. To be able to.

  According to the present invention, when walking, jogging, or dashing for walking or exercise purposes in daily life, music with a tempo corresponding to the user's motion tempo is played back and played back with the user's motion. You can get a sense of unity with your music. Even when there is no music data whose difference from the user's motion tempo is within the predetermined range, a predetermined sound whose difference from the user's motion tempo is within the predetermined range is generated and reproduced. Therefore, it is possible to always reproduce some sound and provide it to the user so that a sense of unity with the user's operation can be obtained.

  Hereinafter, an embodiment of an apparatus, a method, and a program according to the present invention will be described with reference to the drawings. In the embodiments described below, an apparatus, method, and program according to the present invention are provided with, for example, a portable hard disk player, a portable MD (Mini Disc (registered trademark)) player, and a music data (music data) playback function. A case where the present invention is applied to a portable sound reproducing apparatus (music reproducing apparatus) such as a mobile phone terminal provided will be described as an example.

[Configuration of sound playback device]
FIG. 1 is a block diagram for explaining the sound reproducing apparatus of this embodiment. As described above, the sound reproducing device of this embodiment is a portable device, and can be reduced in size and weight, and can be easily carried and used by storing it in a pocket of clothes. It can be done. Therefore, it is suitable for use in reproducing and listening to music while exercising such as walking and jogging.

  As shown in FIG. 1, the sound reproducing device of this embodiment includes a control unit 10, a music information storage device unit 21, a music reproduction data generating device unit 22, a movement information analysis circuit 23, a movement information sensor 24, and an audio signal output. Processing unit 31, speaker 32, display circuit 33, display unit 34, key operation unit 41, microphone (described as a microphone in FIG. 1) 42, audio signal input processing unit 43, external terminal 51, I / F (interface) 52, a storage device unit 53, a communication I / F 61, a transmission / reception circuit 62, and a transmission / reception antenna 63.

  The control unit 10 controls each unit of the sound reproducing device. A CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, and a RAM (Random Access Memory) 13 are connected through a CPU bus 14. It is configured. Here, the CPU 11 can control each unit by executing a program and supplying a control signal generated in accordance with the program to the respective units, and is a main body of control. The ROM 12 stores and holds various programs executed by the CPU 11 and various data necessary for processing. The RAM 13 is mainly used as a work area (work area), for example, temporarily storing intermediate results of processing.

  The music information storage device unit 21 is a device portion that performs processing of reading music data recorded on a recording medium and writing music data to the recording medium. The recording medium is formed using a hard disk, a magneto-optical disk such as MD (Mini Disc (registered trademark)), an optical disk such as CD (Compact Disc) or DVD (Digital Versatile Disc), a semiconductor memory, or a semiconductor memory. There are various types such as an IC card memory and a magnetic tape. When the recording medium is, for example, a hard disk, the music information storage device unit 21 corresponds to a hard disk drive, and when the recording medium is an optical disk, the music information storage device. The unit 21 corresponds to an optical disk drive. In this embodiment, the music information storage device unit 21 will be described as a hard disk drive, for example.

  The music playback data generation unit 22 performs various processes on music data (music data) to be played back in accordance with control from the control unit 10. Specifically, as will be described later, music data to be reproduced is searched for and selected from a plurality of music data stored in the music information storage unit 21, and the reproduction order of the music data to be reproduced is determined. This is a part for performing processing such as automatically generating music data to be reproduced using parameters prepared in advance.

  The exercise information analysis circuit 23 is a portion that performs analysis processing and the like related to the user's exercise in accordance with control from the control unit 10 or the like. Specifically, it is a part that performs processing such as receiving detection output from the exercise information sensor 24 and analyzing it to detect the user's operation tempo (exercise tempo).

  In FIG. 1, the functions of the music reproduction data generation unit 22 and the exercise information analysis circuit 23 indicated by double-line blocks can also be realized by a program executed in the control unit 10. In other words, the functions of the music reproduction data generation unit 22 and the exercise information analysis circuit 23 can be realized by the function of the control unit 10.

  The movement information sensor 24 is used when the user is exercising (when operating) using one or more of various sensors such as an acceleration sensor, a vibration sensor, a shock sensor, and a pressure sensor. This can be detected. These detection outputs are supplied to the exercise information analysis circuit 23 as described above, and the exercise (motion) tempo of the user is detected.

  In the sound reproduction apparatus of this embodiment, the audio signal output processing unit 31 receives supply of audio data (music data or the like) to be reproduced supplied through the control unit 10, and converts this to D / A (Digital / Analog) is converted to form an analog audio signal for output. The analog audio signal from the audio signal output processing unit 31 is supplied to the speaker 32, and sound corresponding to the analog audio signal supplied thereto is emitted from the speaker 32.

  Although not shown, the audio signal output processing unit 31 is connected to an audio output terminal. When headphones or earphones are connected to the audio signal output processing unit 31, analog audio from the audio signal output processing unit 31 is connected. The signal is supplied to the headphones and earphones connected thereto through the audio signal output terminal, and the reproduced sound can be heard through the headphones and earphones. In this way, when headphones or earphones are connected to the audio output terminal, the reproduced sound is not emitted from the speaker 32.

  The display circuit 33 forms an image to be displayed on the display screen of the display unit 34 in accordance with control from the control unit 10. In this case, the display unit 34 uses a display element such as an LCD (Liquid Crystal Display) or EL (Electro Luminescence) panel, and has a relatively large display screen to display various information. It is something that can be done. On the display screen of the display unit 34, operation guidance, an error message, a title of reproduced music, other various character information, image information, and the like are displayed under the control of the control unit 10.

  The key operation unit 41 includes a plurality of operation keys and function keys, and is a part that receives input of instructions and information to be given to the sound reproduction device such as start and end of music reproduction and selection of music to be reproduced. . The microphone 42 picks up sound, converts it into an electric signal, and takes it in. An analog audio signal corresponding to the sound collected by the microphone 42 is supplied to the audio signal input processing unit 43, where A / D (Analog / Digital) conversion and the like are performed, and a music information storage device through the control unit 10. It is possible to record on the recording medium of the unit 21.

  The external terminal (external input / output terminal) 51 is a connection terminal with an external device. For example, it receives music data or the like from another sound reproduction apparatus and takes it in, or conversely, The music data can be supplied to the other external device from the sound reproducing apparatus of the embodiment. The I / F 52 takes the data supplied through the external terminal into the sound reproducing device of this embodiment and converts it into a format that can be processed, or conversely to other equipment. For example, data to be output is converted into data in a format that can be output.

  As will be described later, the storage device 53 stores and holds data to be stored, for example, various information such as identification information of reproduced music data, characteristic information of the music data, and operation tempo of the user. It is something that can be done. It is of course possible to store music data in the storage unit 53.

  Note that the storage device unit 53 is a device that reads various data recorded on a recording medium and writes various data to the recording medium, as with the music information storage device unit 21 described above. Part. The recording medium is formed using a hard disk, a magneto-optical disk such as MD (Mini Disc (registered trademark)), an optical disk such as CD (Compact Disc) or DVD (Digital Versatile Disc), a semiconductor memory, or a semiconductor memory. There are various types such as an IC card memory and a magnetic tape. When the recording medium is, for example, a hard disk, the storage device 53 corresponds to a hard disk driver. When the recording medium is an optical disk, the storage device 53 is an optical disk. Corresponds to the driver. In this embodiment, the storage device unit 53 will be described as an IC card memory drive, for example.

  In addition, the sound reproducing apparatus of this embodiment includes a communication I / F (interface) 61, and is connected to a network 100 such as the Internet, for example, and the target music data or the music data from a music database on the Internet. You can acquire information such as the title, genre, length (playback time), song tempo, and other characteristics information, and send various requests and information to the target party over the Internet. Yes.

  Further, for example, by connecting to a wireless LAN (Local Area Network) or the like through the transmission / reception circuit 62 and the transmission / reception antenna 63, music data, characteristic information thereof, and the like can be acquired, or other devices connected to the wireless LAN can be obtained. Request and information can be sent.

  Then, in response to an instruction input from the user received through the key operation unit 41, the control unit 10 controls each unit, and performs communication I / F 61, external terminal 51 and I / F 51, transmission / reception circuit 62, and transmission / reception antenna. The music data supplied through 63 and the characteristic information of the music data can be recorded on the recording medium of the music information storage device unit 21 through the control unit 10.

  Usually, a list of music (music list) stored and held as music data in the music information storage device unit 22 is formed by the control unit 10 and displayed on the display screen of the display unit 34 through the display circuit 33. Then, by selecting music data to be reproduced through the key operation unit 41 from the displayed music list display, the music data can be reproduced.

  In this case, the control unit 10 reads out the target music data from the music information storage device unit 21 in response to the reproduction instruction including the selection information of the music data received through the key operation unit 41, and reads it out as an audio signal output processing unit. 31. As described above, when music data is supplied to the audio signal output processing unit 31, an analog audio signal for output is formed as described above, and the headphones 32 connected to the speaker 32 or an external output terminal (not shown) The music corresponding to the music data can be heard through the earphone.

  In the sound reproducing device of this embodiment, for example, when receiving an instruction input for playing music according to the user's operation tempo through the key operation unit 41, the control unit 10 causes the exercise information analysis circuit 23. And the motion information analysis circuit 23 analyzes the motion information of the user acquired by the motion information sensor 24 to detect the motion tempo of the user.

  The control unit 10 controls the music reproduction data generation device unit 22 so that the music information storage device unit stores music data with a tempo that is different from the user's motion tempo detected by the exercise information analysis circuit 23 within a predetermined range. The music data stored in the recording medium 21 is searched. In this case, for example, music data having a target tempo is searched based on music information that is a list of reproducible music data recorded on the recording medium of the music information storage device unit 21.

  FIG. 2 is a diagram for explaining an example of a music list created on the recording medium of the music information storage device unit 21, for example, in the sound reproducing device of this embodiment. As described above, the music list is a list of music data stored in the storage medium of the music information storage device 21 and made reproducible by the sound playback device. As shown in FIG. It consists of information such as genre, length (playback time), song tempo, etc.

  Here, the title means the title of the music obtained by reproducing the music data, and here also has a role as an identifier of each music data. As shown in FIG. 2, the genre reproduces music data such as pops, HIP-HOP (hip hop), J-POP (Japanese pop music), R & B (rhythm and blues), and so on. This indicates the type of music obtained. The length (reproduction time) indicates the reproduction time of the music data, and the song tempo is the speed at the time of reproduction of the music data, and is the number of beats per minute (BPM: Beat Per Minutes). Further, as other information, various information related to music data such as artist name, date of sale, and other identification numbers can be managed.

  The title, genre, length (playback time), song tempo, etc. constituting the song list may be information provided on a CD (Compact Disc) along with music data or provided on the Internet. What is disclosed in the music information database is downloaded (acquired) and used.

  For example, when music data is supplied from an external device such as a CD player connected to an external terminal and is recorded on the recording medium of the music information storage unit 21, the music data is attached to the music data. When information such as the title, genre, length (reproduction time), and music tempo is received, the music list can be formed using the information.

  If information such as title, genre, length (playback time), song tempo, etc. is not provided along with the music data, it connects to the Internet through the communication I / F 61 and accesses a music information database provided on the Internet. Then, necessary information such as the title, genre, length (playback time), song tempo, etc. can be acquired (downloaded) and used to form a song list.

  Alternatively, the music tempo of the music data may be acquired by analyzing the music data acquired and recorded on the recording medium of the music information storage device unit 21 and used. In this case, the analysis of the music data may be performed by the control unit 10 or may be performed by the music reproduction data generation device unit 22.

  As shown in FIG. 2, the music list has been described as being composed of title, genre, length (playback time), music tempo, and other information for each music data, but the present invention is not limited to this. . In this embodiment, it is sufficient that there is at least information in which identification information for identifying each music data is associated with the music tempo for each music data. Further, the identification information of each music data is not limited to the title. As identification information for each song, for example, information given in advance that is unique to each song, such as ISRC (International Standard Recording Code), may be used.

  Then, the music reproduction data generation unit 22 refers to the music list as shown in FIG. 2 created on the recording medium of the music information storage unit 21, and the difference from the user's operation tempo is within a predetermined range. Search for music data with a tempo (music tempo). Here, the “predetermined range” when the difference from the operation tempo of the user is within the predetermined range is predetermined and can be changed by the user. For example, the difference from the user's operation tempo is set within ± 5.

  In this case, if the operation tempo of the user is “110”, for example, the difference in the music tempo of the target music data is ± 5, so that the range is “105” or more and “115” or less. , “105 ≦ song tempo ≦ 115”. According to this example, in the case of the music information shown in FIG. 2, only music C is searched (detected) as music data (music) to be reproduced.

  Of course, the range of the difference from the user's operation tempo can be set to an appropriate range such as within ± 10, within ± 9, or within ± 8. It is also possible to set the difference from the user's operation tempo to be ± 0 so as to detect music data having a tempo that matches the user's operation tempo. It is also possible to make the minus side range different from the plus side range, such as −10 or more and +5 or less.

  Then, the music data retrieved in the music reproduction data generating device 22 in this way is read from the recording medium of the music information storage device unit 21 and supplied to the audio signal output processing unit 31 where it is decoded. Both are converted into analog audio signals in a format to be supplied to the speaker 24, and this is supplied to the speaker 24. As a result, music corresponding to music data having a tempo corresponding to the user's operation tempo is emitted from the speaker 24, and the user can exercise while listening to the music.

  Further, in the sound reproducing device of this embodiment, when music data having a tempo corresponding to the user's operation tempo cannot be detected on the recording medium of the music information storage device unit 21, for example, communication I / O A music database connected to a high-frequency network such as the Internet is accessed through F, music data having a target tempo is downloaded, and the recording medium of the music information storage device unit 21 or the recording medium of the recording device unit 53 is downloaded. It can be stored and played back.

  In addition, when music data corresponding to the user's motion tempo cannot be detected, a beep sound corresponding to the user's motion tempo is emitted or the user's motion tempo is determined. The tempo MIDI sound can be emitted, or the automatically generated music data can be reproduced to emit the tempo according to the user's operation tempo.

  That is, when there is no music data corresponding to the detected operation tempo of the user, the sound reproducing device of this embodiment uses a beep sound, MIDI sound, music corresponding to automatically generated music data, or the like. By providing at a tempo corresponding to the operation tempo of the user, the user can always provide audio that can be integrated with the user's own operation.

  The beep sound is a so-called dial sound or signal sound used for a warning sound or the like, and can be emitted relatively easily.

  In addition, the phrase “tempo according to the user's operation tempo” means a tempo that includes a tempo that matches the user's operation tempo and that has a difference from the user's operation tempo within a predetermined range. . Therefore, it also includes generating and outputting beep sound, MIDI sound, or audio data such as a tempo that matches the user's operation tempo, a tempo slightly slower than the user's operation tempo, and a tempo slightly faster than the user's operation tempo. It is.

  In addition, when there is no music data according to the user's exercise tempo, which of the beep sound, the MIDI sound, and the music according to the automatically generated sound data is to be emitted at the time of manufacture, for example The sound to be used is determined in advance or selected by the user.

  For example, when it is desired to configure the sound reproducing device as inexpensively as possible, when there is no music data corresponding to the user's exercise tempo, a beep sound or MIDI sound is emitted. Also, if you want to enhance the functions as much as possible, if there is no music data according to the user's exercise tempo, it can be configured to emit music according to the automatically generated audio data, or What is necessary is just to comprise so that a user can select from three among a beep sound, a MIDI sound, and the music according to the music data produced | generated automatically.

  Moreover, since the sound reproducing apparatus of this embodiment is a portable type as described above and uses a battery as its power source, the remaining capacity of the battery is checked, and the remaining capacity falls below a predetermined value. In some cases, it is possible to configure the equipment to automatically select the sound to be used, such as using a beep sound and automatically generating sound data when there is a sufficient remaining capacity. It is.

  As described above, the sound reproducing apparatus according to this embodiment is similar to the conventional portable hard disk player, portable MD player, semiconductor memory player, and the like through the music list from the music data recorded on the recording medium. When the specified music data can be played and the user performs exercises such as walking, jogging, and running, the user's motion tempo is detected and the detected motion tempo of the user is detected. It is possible to search for and play back a music piece.

  If there is no music data corresponding to the user's motion tempo, the beep sound, MIDI sound, or the automatically generated music data at the tempo corresponding to the user's motion tempo Either one can be sounded.

[Details of operation of sound reproduction device]
FIG. 3 is a flowchart for explaining the operation in the case where the user's operation tempo is detected and some sound having a tempo corresponding to the user's operation is emitted. The process shown in FIG. 3 is mainly executed in the control unit 10 when an instruction input for playing music (music) according to the user's operation tempo is received through the key operation unit 41, for example. is there.

  First, when the control unit 10 receives an instruction input for playing music according to the user's operation tempo through the key operation unit 41, the control unit 10 controls the exercise information analysis circuit 23 and outputs a detection output from the exercise information sensor 24. Obtain (step S101). Then, the control unit 10 calculates the motion tempo of the user by controlling the motion information analysis circuit 23 and analyzing the detection output from the motion information sensor 24 (step S102).

  As described above, the motion information sensor 24 includes an acceleration sensor, a vibration sensor, a shock sensor, a pressure sensor, and the like, and the motion information analysis circuit 23 detects a detection output (detection waveform) from the motion information sensor 24. ) By detecting the period of the peak value, calculating the autocorrelation of the detection output to detect the periodicity, or performing frequency spectrum analysis to detect the periodicity. Detect the operation tempo. Of course, the user's operation tempo may be detected using other methods.

  The operation tempo is specifically the speed of the operation as described above. For example, when the user's operation is walking or running, the operation tempo is the number of steps per minute. Is the number of movements per minute, such as the number of jumps per minute.

  Then, the control unit 10 controls the music reproduction data generating device unit 22 and, as described with reference to FIG. 2, based on the user's motion tempo calculated by the exercise information analysis circuit 23, for example, music information storage A song list (music data) corresponding to the operation tempo is searched with reference to the song list created on the recording medium of the device unit 21 (step S103).

  In the search process in step S103, as described above, for example, music data having a music tempo that falls within a range of ± 5 of the user's operation tempo is searched. This is a process of searching for music data having a music tempo that falls within a predetermined range. Of course, music data having the same song tempo as the user's motion tempo is searched, music data having a song tempo equal to or higher than the user's motion tempo and not more than “+5” is searched, or the same as the user's motion tempo. It is also possible to search for music data having a music tempo of “−5” or higher. Such a range specification can be changed through the key operation unit 41.

  And the control part 10 judges whether the music of the tempo according to a user's operation | movement tempo was detected (step S104). When it is determined in step S104 that the music having the tempo corresponding to the user's operation tempo has been detected, the music data having the music tempo corresponding to the user's operation tempo is found in the search process in step S103. Is supplied to the audio signal output processing unit 31, reproduced, and output (sounded) through the speaker 32 (step S105).

  When a plurality of music data having a music tempo corresponding to the user's operation tempo is found in step S103, the control unit 10 determines music data (music) to be reproduced in a predetermined order in step S105. Try to play this. Specifically, according to a predetermined order such as the order in which the music tempo is close to the user's operation tempo, the predetermined genre order, the playback time is short, the title is in the order of 50 notes, or the like. The music data to be played back can be determined. Of course, a priority order is set in advance for each of the reproducible music data so that it can be followed, or as will be described later, the identification information of the replayed music data is retained as history information, Various methods can be used, such as giving priority to playback that has not been played back.

  When it is determined in step S104 that the music having the tempo corresponding to the user's operation tempo has not been detected, the control unit 10 controls the audio reproduction data generation unit 22 to generate a beep sound, MIDI sound, and automatic sound. A process of playing back any one of the music pieces corresponding to the generated music data is performed (step S106).

  Specifically, for example, when reproducing a beep sound, the control unit 10 controls the music reproduction data generation device unit 22 to beep at a tempo corresponding to the user's operation tempo detected in step S102. Is generated and supplied to the audio signal output processing unit 31 to emit a beep sound (for example, a beeping sound) at a tempo corresponding to the operation tempo of the user.

  When playing back MIDI sound, the control unit 10 controls the music playback data generating unit 22 to emit the MIDI sound at a tempo corresponding to the user's operation tempo detected in step S102. MIDI sound data is generated and supplied to the audio signal output processing unit 31 to emit a MIDI sound (for example, a drum sound) at a tempo corresponding to the operation tempo of the user.

  Also, when playing back music according to the automatically generated audio data, the control unit 10 stores, for example, in a recording medium of the music information storage device unit 21 or a storage medium of the storage device unit 53, as will be described in detail later. Using the parameters of the stored music generation parameter file and the sound source data prepared in advance, the music data of the music tempo corresponding to the user's operation tempo is automatically generated, and the audio data output processing unit By supplying to 31, the music (music) corresponding to the automatically generated music data is reproduced and emitted at a tempo corresponding to the operation tempo of the user.

  Note that information indicating which of the beeps, MIDI sounds, and music according to the automatically generated music data is to be reproduced is, for example, by the user via the key operation unit 41 in advance before use. It is inputted and stored and used in a recording medium of the storage device unit 53 or a non-volatile memory (not shown) provided in the sound reproduction device of this embodiment.

  Then, after the music data is reproduced for a predetermined time in the process of step S105, or after the process of generating the instructed voice for a predetermined time in step S106, the control unit 10 performs, for example, the exercise information sensor 24. Whether or not a predetermined end event has occurred, such as controlling the motion information analysis circuit 23 that receives the detection output from the control signal and stopping the user's motion (motion) or accepting a playback stop instruction input It is determined whether or not (step S107).

  If it is determined in step S107 that the end event has not yet occurred, the process from step S101 is repeated, and the music data to be reproduced is searched according to the newly calculated operation tempo for the user. Will be done. If it is determined in step S107 that a predetermined end event has occurred, the control unit 10 ends the process shown in FIG.

  In step S107, the motion information analysis circuit 23 that receives the detection output from the motion information sensor 24 is controlled, and the user's motion tempo is different from the motion tempo previously detected by a predetermined amount. When this occurs, it is possible to repeat the processing from step S101.

[Automatic generation of music data]
Next, the processing when music data is automatically generated and used in step S106 will be specifically described. FIG. 4 is a diagram for explaining an example of a music generation parameter file that is referred to when music data is automatically generated.

  As shown in FIG. 4, the music generation parameter file describes the genre, constituent instruments, rhythm, chord progression, performance style, and performance rules. As shown in FIG. 4, the genre is information for specifying the type of music based on the music data to be generated, and a plurality of information such as pops, rock, heavy metal,... Can be selected.

  The constituent musical instrument is information for specifying the sound source of the music piece based on the music data to be generated, and various usable sounds (instrument sounds) such as guitar, bass, drum,... Can be selected. Rhythm is information for specifying the rhythm of a music piece based on music data to be generated, and a plurality of information such as 2 beats, 4 beats, 8 beats, 16 beats,... Can be selected.

  The chord progression is information for specifying the chord progression of the musical composition based on the music data to be generated. In the case of this example, as shown in FIG. 4, there are large 4 such as “1: Major”, “2: Minor”, “3: Frequently used chord progression”, “4: Randomly create chord”. The chord progression that can be used for each of these four classifications can be selected.

  The performance style is information for specifying the performance style of the music based on the music data to be generated. In other words, the performance style is information for specifying an impression (feel) given to the listener by the music based on the music data to be generated. In this example, as shown in FIG. 4, a plurality of information such as J-POP style, 80s style, bright and gorgeous can be selected.

  And, for example, if the performance style is “Gorgeous”, the drum style cymbals and hi-hats are used frequently, and the side guitar with rhythm is used frequently. Thus, how to generate music data is determined for each selected performance style, such as generating music data.

  The performance rule is information for giving a change to the musical composition based on the music data to be generated. Specifically, as shown in Fig. 4, when adding bass after repetition, using an arpeggio playing guitar, or strengthening the bass or drum when emphasizing the rhythm, etc. It can be selected.

  When the music data is automatically generated, the control unit 10 arbitrarily combines elements such as genre, constituent instrument, rhythm, chord progression, performance style, etc. from the music generation parameter file shown in FIG. The music data having the tempo corresponding to the user's operation tempo is generated.

  For example, in the sound reproduction apparatus of this embodiment, as described above, when the function of the motion information analysis circuit 23 detects that the user's operation tempo is “120”, the control unit 10 controls The music reproduction data generating unit 22 to be generated generates the music data of the music having the tempo “120” (0.5 second per quarter note) using the information of the music generating parameter file shown in FIG. .

  In this case, for example, the music reproduction data generation unit 22 performs “genre = 1: pops”, “component instrument = 1: guitar, 2: bass, 3: drum”, “rhythm = 4: 16 beat”, “chord”. “Progress = 1: Major (1: C-F-G-C)”, “Performance Style = 6: Bright, 9: Cheerful, 11: Rhythmically (Rhythm Emphasis), 13: Chord Only” Necessary parameters are selected, and music data of the music having the tempo “120” is generated according to the selected parameters.

  The music data generated in this way is supplied to the music signal output processing unit 31 through the control unit 10, reproduced, and supplied to the speaker 32. Thereby, the music according to the automatically generated music data is emitted from the speaker 32. Here, the music data of the music having the tempo that matches the operation tempo “120” of the user is generated. However, the present invention is not limited to this. It is also possible to generate music data having a slightly faster tempo or a slightly slower tempo than the user's operation tempo.

  In addition, as described above, the control unit 10 may arbitrarily select the music generation parameter, and the control unit 10 may arbitrarily select the music generation parameter, or other various methods may be used. It is possible. For example, the parameters to be used by the user in advance are input through the key operation unit 41 and stored in, for example, a recording medium of the storage device unit 53, and music data is automatically generated using this. You can also.

  Further, in the sound reproducing apparatus of this embodiment, parameters used when music data is automatically generated in the past are stored as parameter use history information in the recording medium of the music information storage device unit 21 or the recording medium of the storage device unit 53. In addition, in accordance with this, a parameter used when new music data is automatically generated may be determined. For example, a combination of parameters that have already been used is not used, or conversely, a parameter that has been used in the past is used repeatedly, or a part of a combination of parameters that has been used in the past is changed and used. It can also be done.

  Further, information such as title, genre, constituent instrument, rhythm, chord progression, performance style, performance rule, etc. is acquired as music history information for the music data reproduced in the sound reproducing apparatus of this embodiment, and music information is stored. The data is stored in the recording medium of the device unit 21 or the storage device unit 53. When music data is automatically generated, parameters are set so that music data can be automatically generated according to the user's preference by referring to the playback history information recorded on a predetermined recording medium. May be selected.

  In this case, the titles and genres can be the titles and genres that exist in the above-mentioned music list, and other information such as constituent instruments, rhythms, chord progressions, performance styles, performance rules, etc. are provided on the Internet, for example. It is possible to obtain from the music information database by preparing in the music information database.

  The music information database is provided by, for example, a so-called record company or music publisher that provides existing music content (music data), or is maintained and managed by a general so-called music fan. It is possible to use what is provided in various forms such as managed ones.

  By using the playback history information, for example, in the case of a user who often plays bright, rhythmic music with a genre of pops, a rhythm of 16 beats, music data matching this is automatically generated. It is possible to select parameters so that they can be.

  As described above, the sound reproducing apparatus according to this embodiment can obtain a sense of unity between motion and music by selecting and playing music according to the user's motion tempo. In particular, in consideration of the case where there is no music having a tempo corresponding to the user's operation tempo, by presenting a beep sound corresponding to the operation tempo, MIDI sound, or music corresponding to the automatically generated audio data, The case where there is no reproducible music is eliminated, and a user who is performing some kind of operation is always able to obtain a sense of unity with sound such as music to be played.

  The sound reproduction device according to the above-described embodiment has been described as a portable sound reproduction device. Specifically, a portable hard disk player, a portable MD (registered trademark) player, a semiconductor memory player, The present invention can be applied to various portable sound reproduction devices (music reproduction devices) such as a mobile phone terminal having a music data (music data) reproduction function.

  Further, in the above-described embodiments, the sound reproducing device is a portable device, and has been described as being suitable for use in reproducing and listening to music while exercising such as walking and jogging. However, the movement (exercise) performed by the user is not limited to walking and jogging. For example, it may be one of various actions (exercises) such as walking, walking, jogging, running, and dashing.

  In this case, (1) walking, (2) walking, (3) jogging, (4) running, (5) dash, the operating speed (moving speed) increases in the order of (1) to (5). This means that the load on the person performing the operation increases. However, because there are individual differences in the movement speed (movement speed) in these movements, it is not possible to define the speed in a general numerical manner, and the section corresponding to the speed of each movement has different movements before and after. It may overlap with the section according to the speed.

  The distinction between (1) walking, (2) walking, (3) jogging, (4) running, (5) dash is not only physically moving, but also so-called room runners and bicycles used indoors. Even when exercise is performed indoors using a type training machine or the like, it is also possible to specify the type of exercise according to the intensity.

  For example, when exercising using a bicycle-type training machine, if you pedal the pedal very slowly, (1) walk around, and (2) walk around when you pedal the pedal so that the load of walking is applied. (3) When jogging the pedal so that a load of aerobic jogging is applied (3) When jogging, and when pedaling with a larger load, (4) Running or (5) Dash Even if the type of exercise performed by the user is different, (1) walking, (2) walking, (3) jogging, (4) running, 5) The exercise performed by the user can be managed by dividing the dash.

  Therefore, in the apparatus to which the present invention is applied, such as a sound reproducing device, the intensity of exercise is managed by the following categories: (1) walking, (2) walking, (3) jogging, (4) running, and (5) dash. In order for the user to perform exercises according to the purpose without difficulty, audio data such as music is reproduced and provided to the user to assist the user in performing various exercises. be able to.

  That is, the user's actions may be walking, walking, jogging, running, dash, bicycle jumping, boating, jumping such as jumping rope, aerobics dance, etc. As described above for the intensity of motion (exercise), when performing various motions by dividing (1) walking, (2) walking, (3) jogging, (4) running, and (5) dash. This invention can be used.

  In addition, in the case of playing a song according to existing music data having a tempo corresponding to the user's operation tempo, a beep sound, a MIDI sound, or a song corresponding to the automatically generated audio data, information indicating the operation tempo, One or both of the identification information of the reproduced music data is, for example, a recording medium of the music information storage device unit 21, a storage medium of the storage device unit 53, or an EEPROM (Electrically Erasable and Programmable ROM) provided in the control unit 10. Such information may be stored and retained as history information in a non-volatile memory. In this way, by storing history information relating to the tempo, it is possible to grasp how long and what tempo operation the user has continued after the operation (exercise) has ended. It can be used for self-motion (exercise) management and analysis.

  The sound reproducing device according to the embodiment described above is applied with the sound reproducing method according to the present invention. In particular, the processing described with reference to the flowchart of FIG. 3 corresponds to the sound reproducing method according to the present invention. It is processing. Moreover, the sound reproduction program according to the present invention can be realized by creating a program for executing the processing described with reference to the flowchart of FIG. By mounting the sound reproduction program according to the present invention on various sound reproduction apparatuses, the sound reproduction apparatus of the present invention can be realized relatively easily.

  Further, in the above-described embodiment, it has been described that any one of a beep sound, a MIDI sound, and automatically generated music data according to a user's operation tempo is reproduced. , Automatically generated voices of human voices, for example, “1、2、1、2 、 ...” and “One, Two, One, Two,…” are played at a tempo according to the user's operation tempo Then, the sound may be emitted.

It is a block diagram for demonstrating the sound reproduction apparatus with which one Embodiment of this invention was applied. It is a figure for demonstrating an example of the music list which is a list of the music data which can be reproduced | regenerated. It is a flowchart for demonstrating operation | movement at the time of detecting a user's operation | movement tempo and releasing some sound of the tempo according to this. It is a figure for demonstrating an example of the parameter file for music productions referred when generating music data automatically.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Control part, 11 ... CPU, 12 ... ROM, 13 ... RAM, 21 ... Music information storage part, 22 ... Music reproduction data generation part, 23 ... Movement information analysis circuit, 24 ... Movement information sensor, 31 ... Voice Signal output processing unit, 32... Speaker, 33... Display circuit, 34... Display unit, 41 .. key operation unit, 42 .. microphone, 43 .. audio signal input processing unit, 51. Storage unit 61: Communication I / F 62: Transmission / reception circuit 63: Transmission / reception antenna

Claims (22)

Detection means for detecting a user's movement tempo;
Search means for searching for music data having a tempo in which the difference from the user's motion tempo detected by the detection means is within a predetermined range;
A first reproduction means for reproducing the detected music data when the search means detects music data having a tempo that is different from a user's operation tempo within a predetermined range;
When the search means does not detect tempo music data whose difference from the user's motion tempo is within a predetermined range, a predetermined sound with a tempo corresponding to the user's motion tempo is generated. Sound generation means;
And a second reproduction unit configured to reproduce the sound generated by the sound generation unit. The sound reproducing device according to claim 1,
The sound reproducing device, wherein the sound generating means generates a beep sound. The sound reproducing device according to claim 1,
The sound reproducing device is characterized in that the sound generating means generates MIDI (Musical Instrument Digital Interface) sound. The sound reproducing device according to claim 1,
Storage means for storing and holding parameters for automatically generating music;
The sound reproduction device according to claim 1, wherein the sound generation unit generates music data having a tempo corresponding to an operation tempo of a user according to the parameter stored in the storage unit. The sound reproducing device according to claim 1,
The user's motion whose motion tempo is detected by the detecting means is at least one of walking, jogging, running, and dash. The sound reproducing device according to claim 1,
The sound reproducing apparatus according to claim 1, wherein the detecting means is configured using one of an acceleration sensor, a vibration sensor, and a pressure sensor. The sound reproducing device according to claim 1,
A sound reproducing apparatus comprising storage means for storing and holding one or both of information indicating a user's operation tempo and information about reproduced music data as history information. The sound reproducing device according to claim 7,
The storage device is any one of an optical disk, a magneto-optical disk, a magnetic tape, a hard disk, a semiconductor memory, and an IC card. The sound reproducing device according to claim 1,
Music data storage means for storing music data;
A connection means for enabling connection to a music database provided on a network,
The search means can search music data stored in the music data storage means and music data in the music database on the network that can be connected through the connection means. ,
The sound reproduction apparatus according to claim 1, wherein the music data storage means uses any one of an optical disk, a magneto-optical disk, a magnetic tape, a hard disk, a semiconductor memory, and an IC card as a recording medium. A detection process for detecting a user's movement tempo;
A search step of searching for music data having a tempo in which the difference from the user's motion tempo detected in the detection step is within a predetermined range;
A first playback means for playing back the detected music data when the search step detects music data of a tempo whose difference from the user's motion tempo is within a predetermined range;
In the search step, when music data having a tempo whose difference from the user's operation tempo is within a predetermined range is not detected, a predetermined sound having a tempo corresponding to the user's operation tempo is generated. Sound generation process,
A second reproduction step of reproducing the sound generated in the sound generation step. It is the sound reproduction method of Claim 10, Comprising:
In the sound generation step, a beep sound is generated. It is the sound reproduction method of Claim 10, Comprising:
In the sound generation step, a sound reproduction method characterized by generating a MIDI (Musical Instrument Digital Interface) sound. It is the sound reproduction method of Claim 10, Comprising:
In the sound generation step, music data having a tempo corresponding to a user's operation tempo is generated in accordance with the parameters stored in a storage unit that stores and holds parameters for automatically generating music. Sound reproduction method. It is the sound reproduction method of Claim 10, Comprising:
The sound reproduction method according to claim 1, wherein the user's motion for detecting the motion tempo in the detection step is at least one of walking, jogging, running, and dash. It is the sound reproduction method of Claim 10, Comprising:
In the detecting step, the user's operation tempo is detected using one of an acceleration sensor, a vibration sensor, and a pressure sensor. It is the sound reproduction method of Claim 10, Comprising:
A sound reproduction method comprising a history recording step of recording one or both of information indicating a user's operation tempo and information about reproduced music data as history information in a storage means. The sound reproduction method according to claim 16, wherein
The sound reproducing method according to claim 1, wherein the storage means is one of an optical disk, a magneto-optical disk, a magnetic tape, a hard disk, a semiconductor memory, and an IC card. It is the sound reproduction method of Claim 10, Comprising:
In the search step, the music data stored in the music data storage means of the own device and the music data in the music database on the network that can be connected through the connection means are to be searched,
The sound reproduction method according to claim 1, wherein the music data storage means uses any one of an optical disk, a magneto-optical disk, a magnetic tape, a hard disk, a semiconductor memory, and an IC card as a recording medium. In a computer mounted on an audio playback device that plays back music data,
A detection step for detecting a user's movement tempo;
A search step of searching for music data having a tempo that is different from a user's motion tempo detected in the detection step within a predetermined range;
A first reproduction step of reproducing the detected music data when the difference between the operation tempo of the user is within a predetermined range and the detected music data is detected in the search step;
In the search step, when music data having a tempo whose difference from the user's motion tempo is within a predetermined range is not detected, a predetermined sound having a tempo corresponding to the user's motion tempo is generated. A sound generation step;
And a second reproduction step for reproducing the sound generated in the sound generation step. The sound reproduction program according to claim 19,
In the sound generation step, a sound reproduction program that generates a beep sound. The sound reproduction program according to claim 19,
In the sound generation step, a sound reproduction program for generating MIDI (Musical Instrument Digital Interface) sound. The sound reproduction program according to claim 19,
In the sound generation step, music data having a tempo corresponding to a user's operation tempo is generated in accordance with the parameters stored in a storage unit that stores and holds parameters for automatically generating music. Sound reproduction program.

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