JP3799360B2 - Music sound reproducing device, music sound reproducing method, music sound reproducing program, and recording medium - Google Patents

Description

  INDUSTRIAL APPLICABILITY The present invention is a musical sound reproducing apparatus, a musical sound reproducing method, a musical sound reproducing program, and a musical sound reproducing program that are suitable for being applied to a process of reproducing a plurality of digital musical sound data while connecting the reproduction pitch and beat timing. The recording medium.

  Digital musical tone data can be relatively easily subjected to a process of continuously changing the playback speed during playback. In addition, a musical sound reproducing apparatus for enabling musical sound reproduction while performing such processing is already known (for example, Non-Patent Document 1).

According to such a musical sound reproducing apparatus, when two musical sounds are continuously reproduced, the two musical sounds can be reproduced while the reproduction pitches are matched and the beat timings are synchronized.
Pioneer Corporation, Twin CJ Player CMX-3000, [online], [March 22, 2004 search], Internet <URL: http://www.pioneer.co.jp/cdj/products/cmx3000.html >

  However, in the conventional musical sound reproducing apparatus, in order to connect and reproduce two musical sounds by matching the reproduction pitch and synchronizing the beat timing as described above, first, the heads of the bars are made coincident and then the reproduction pitch is changed. It was necessary to change and synchronize.

  Also, for example, in actual disc jockey (DJ) play, when two musical sounds are connected and reproduced, a certain musical sound is terminated at an arbitrary point in the musical sound, and then the next musical sound is reproduced in the musical sound. It is also possible to play from any point. Further, for the connection contents, a musical sound (hereinafter referred to as “subsequent musical sound”) reproduced following the preceding musical sound is referred to as a standard volume with respect to a musical sound reproduced in advance (hereinafter referred to as “preceding musical sound”). There are various processes such as a cut-in for starting playback by interrupting with, a crossfade for fading out a preceding musical tone while fading out a preceding musical tone, and a long crossfade with a longer crossfade time. It has been difficult for ordinary people to perform such playback processing while synchronizing both musical sounds as described above.

  The present invention has been made in order to solve these problems of the prior art, and an object of the present invention is to provide a music sound reproducing apparatus in which anyone can easily reproduce music data in the same way as a DJ. Another object is to provide a musical sound reproduction method, a musical sound reproduction program, and a recording medium storing the program.

A musical sound reproducing apparatus according to an aspect of the present invention is a musical sound reproducing apparatus for connecting a plurality of musical sounds, and for each musical sound to be reproduced, a sound data file associated with each other and at what position in the musical sound. A beat guide file to which a command comment indicating whether or not editing is possible is provided, a recording unit that at least temporarily records a plurality of musical sound data, and the plurality of musical sound data recorded in the recording unit A control unit that edits the sound data file so as to be connected according to the command comment, and a sound processing unit that outputs sound while connecting the plurality of sound data files according to the control of the control unit. The control unit replays the sound data file of the preceding musical sound, which is the musical sound to be reproduced in advance, and the preceding musical sound. When performing control for connecting the sound data file for subsequent tone is tone that is, edit in response to said command comments of the command comments and the subsequent tone of the preceding tone, be continuously reproduced It is characterized by.

  In addition, the musical sound reproducing apparatus, the musical sound reproducing method, the musical sound reproducing program, and the recording medium storing the same according to the present invention are characterized by the reproduction pitch of the preceding musical sound in the beat guide file included in each of the plurality of musical sound data. And at least one of the reproduction pitch of the preceding musical sound and the reproduction pitch of the subsequent musical sound is adjusted for continuous reproduction.

  According to the present invention, since a command comment is attached to the beat guide file of the musical sound data, the preceding musical sound and the subsequent musical sound are connected by connecting the sound data file of the preceding musical sound and the sound data file of the subsequent musical sound according to the contents of the command comment. Continuous playback is possible.

  The musical sound reproducing apparatus according to the present invention, for example, adjusts the reproduction pitch and beat timing of a musical sound by a predetermined method and connects a plurality of musical sounds to continuously reproduce a plurality of musical sound data in a desired style. Can be used for Hereinafter, with reference to the drawings, the configuration and operation of a musical tone reproducing apparatus according to an embodiment of the present invention will be described in detail.

[Configuration of music playback device]
[Body configuration]
As shown in FIG. 1, a musical tone reproducing apparatus according to an embodiment of the present invention performs a signal processing and control of internal components according to various computer programs, and a drawing process according to instructions from the control unit 1. In accordance with instructions from the control unit 1, an image processing unit 2 that executes and generates various image data related to musical tone reproduction processing, a display control unit 4 that controls display of image data generated by the image processing unit 2 on the display 3, and the like. An audio processing unit 6 that outputs audio through a speaker 5 after performing audio processing is provided.

  In addition, the musical sound reproducing apparatus is a disk driver for reading various computer programs and processing data such as a musical sound reproducing program 8 that realizes a musical sound reproducing process, which will be described later, recorded on an optical disk 7 such as a DVD-ROM or a CD-ROM. 9, a buffer function for temporarily storing various computer programs and processing data read from the optical disc 7, a RAM (Random Access Memory) 10 for realizing the working area function of the control unit 1, and digital data of musical sounds A ROM (Read Only Memory) 12 for storing various computer programs such as 11 (hereinafter abbreviated as musical tone data) and processing data, and a controller 13 operated by a user when inputting various instructions relating to musical tone reproduction processing Use telecommunication lines such as the Internet and LAN (Local Area Network) And a communication unit 14 for performing information communication process.

  In this embodiment, the musical sound reproduction program 8 is recorded in the optical disc 7, but the musical sound reproduction program 8 is stored in the ROM 12 by executing processing such as installation processing and download processing using the communication unit 14. You may remember it. Further, the music sound reproduction program 8 may be recorded on a recording medium other than the optical disk 7 such as a flexible disk. In this case, however, the disk driver 9 is replaced with a reading device corresponding to the form of the recording medium.

  Furthermore, in this embodiment, the musical sound data 11 is stored in the ROM 12, but the musical sound data recorded in the optical disc 7 is read out, the musical sound data is downloaded using the communication unit 14, etc. The musical sound data 11 may be introduced into the apparatus by other methods.

[Composition of music playback program]
The musical tone reproduction program 8 is composed of computer program code for causing the control unit 1 to execute a musical tone reproduction process to be described later. As shown in FIG. 2, the musical tone reproduction program for controlling the voice processing unit 6 to execute the musical tone reproduction process. A processing code 8a, an interface screen generation code 8b for controlling the image processing unit 2 to generate various image data related to the musical tone reproduction process, and an external device using the telecommunication line by controlling the communication unit 14. A communication processing code 8c for executing the communication processing and various processing data 8d used for the musical tone reproduction processing are provided.

[Composition of musical sound data]
As shown in FIG. 3A, the musical sound data 11 includes a sound data file 11a and a beat guide file 11b associated with each other for each musical sound.

  The sound data file 11a is composed of PCM (Pulse Code Modulation) sound source data, and is processed by the sound processing unit 6 to generate sound represented by a waveform signal as shown in FIG.

  The beat guide file 11b has information indicating the beat timing, the playback pitch indicating the playback speed, the head position of each measure, and the like. For example, as shown in FIG. 3B, the beat timing is indicated by the reproduction time from the head position of the sound data file for each of t1 to t5. The position of the head of each measure is indicated by a flag attached to each beat (in the above example, “0” and “1” described at the end of each performance time in FIG. 3B). It is.

  The beat guide file 11b is normally included in the musical sound data 11, but is not necessarily limited thereto. For example, the musical sound data is analyzed by a server device or the like, and the beat guide file obtained as a result thereof is analyzed. Can also be obtained through a communication line. The timing for creating the beat guide file is not particularly limited, and can be created at any occasion. For example, it can be downloaded at the request of the user. A beat guide file may be created and transmitted for a musical tone.

  In the present embodiment, the playback pitch is calculated from the beat timing information included in the beat guide file 11b. For example, the playback pitch is calculated in advance, and this is set as a numerical value in the beat guide file. It may be held.

  The reproduction pitch obtained in this way is a standard reproduction pitch as an initial value, and is a specific fixed value. On the other hand, in the musical tone connected reproduction process described later, the difference in reproduction pitch between the preceding musical sound and the subsequent musical sound is obtained, and at least one of the reproduction pitch of the preceding musical sound and the reproduction pitch of the subsequent musical sound is reproduced according to this difference. By changing the pitch value, both musical sounds can be reproduced continuously.

  In the present embodiment, the beat guide file 11b can further have a comment. The comment can be appropriately added to the beat guide file 11b by the user. Among these comments, the following are suggested to assist the musical sound reproduction processing in the present embodiment by suggesting the edited contents of musical sounds, and are called command comments. This command comment is a reserved word for the comment. Specifically, the command comments in this embodiment are: HEAD (head), LONG HEAD (long head), TAIL (tail), LONG TAIL (long tail), CUTIN (cut-in), SABI (rust), BRAK (break) ), DUB (dub). The meaning of each command comment will be described together with the description of the musical tone reproduction process using the command comment.

[Configuration of controller]
As shown in FIG. 5, the controller 13 is configured so that the user holds the grip portions 20 </ b> R and 20 </ b> L by gripping them with left and right hands. In addition, the controller 13 includes first and second operation units 21 and 22 and an analog operation unit 23R at positions where each thumb 20R and 20L can be operated with each thumb, for example, with the left and right hands gripped. , 23L are provided.

  The first operation unit 21 is provided with an upward direction key 21a, a downward direction key 21b, a right direction key 21c, and a left direction key 21d. The user can specify the operation target by using these instruction keys 21a, 21b, 21c, and 21d.

  The second operation unit 22 includes a Δ button 22a provided with a Δ-shaped mark, a × button 22b provided with a X-shaped mark, a ○ button 22c provided with a ○ -shaped mark, and a □ shape. □ button 22d provided with a mark of. These buttons 22a, 22b, 22c and 22d are assigned specific operation contents according to the operation targets specified by the instruction keys 21a, 21b, 21c and 21d, and the user can select appropriate buttons 22a. , 22b, 22c and 22d can be selected and pressed to perform an operation on the operation target specified by the instruction keys 21a, 21b, 21c and 21d.

  The analog operation units 23R and 23L can be tilted with the point a as a fulcrum, and can be rotated around the rotation axis b passing through the fulcrum a in such a tilted state. It has become. The analog operation parts 23R and 23L are configured to hold their positions in a standing state (state without inclination) as shown in FIG. 5 during a non-tilting operation (reference position). Then, when the tilt operation is performed while pressing the analog operation unit 23R or the analog operation unit 23L, the coordinate value (x, y) on the xy coordinates corresponding to the tilt amount and the tilt direction with respect to the reference position is detected. Is output to the control unit 1 as an operation output.

  The controller 13 also includes a start button 24 for instructing the control unit 1 to execute the musical sound reproduction program 8, a select button 25 for switching the monitor mode, and a mode for selecting an analog mode and a digital mode. And a selection switch 26. When the analog mode is selected by the mode selection switch 26, the light emitting diode (LED) 27 is controlled to emit light, the analog operation units 23R and 23L are activated, and when the digital mode is selected, the light emitting diode. 27 is extinguished, and the analog operation units 23R and 23L are deactivated.

  Further, the controller 13 is provided with a right button 28 and a left button 29 at positions where each of the gripping portions 20R, 20L can be operated with, for example, the index finger (or middle finger) of each hand in a state where the gripping portions 20R, 20L are gripped with the left and right hands. Yes. These buttons 28 and 29 are respectively arranged in parallel in the thickness direction of the controller 13 for operating a crossfader (= mixer) object displayed on the display 3 at the time of musical tone reproduction processing. It has second right buttons 28R1, 28R2, and first and second left buttons 29L1, 29L2.

  As described above, in the musical sound reproducing apparatus according to the embodiment of the present invention, the control unit 1 responds to the musical operation data 11 specified by the user according to the musical sound reproduction program 8 according to the user's operation input from the controller 13. A musical tone reproduction process is executed. The details of the musical tone reproduction process will be described below with reference to FIGS.

[Music playback process]
[Interface screen display processing]
The control unit 1 controls the disk driver 9 to read the musical sound reproduction program 8 in the optical disk 7 into the RAM 10 in response to the user setting the optical disk 7 on which the musical sound reproduction program 8 is recorded in the disk driver 9. . Thereafter, in response to the user depressing the start button 24 of the controller 13 and instructing the execution of the musical tone reproduction program 8, the control unit 1 is shown in FIG. 6 on the display 3 according to the interface screen generation code 8b. The image processing unit 2 is controlled to display and output the interface screen. When the interface screen is displayed on the display 3, the user refers to the information displayed in the interface screen and performs the following tone selection process and parameter change process while operating the controller 13. Then, the desired music data 11 can be reproduced. Moreover, the control part 1 controls the communication part 14 to perform transmission / reception of the data with the outside through an electric communication line according to the code 8c for communication processing as needed.

  The interface screen in the present embodiment is configured so that the user can reproduce two musical sound data 11 simultaneously. As shown in FIG. 6, the reproducible musical sound name is displayed and the musical sound data 11 to be reproduced is displayed. Musical tone selection windows 42a and 42b having cursors 41a and 41b indicating that the selected musical tone data 11 is selected, and turntable objects 43a and 43b in which record objects 50a and 50b (see FIG. 7) representing the selected musical tone data 11 are arranged. I have.

  In addition, the interface screen shown in FIG. 6 includes equalizer objects 44a and 44b for adjusting the frequency of the selected musical sound data 11, and a volume adjusting object 45a for adjusting the reproduction volume of the selected musical sound data 11. , 45b, pitch adjustment objects (pitch sliders) 46a, 46b for adjusting the reproduction pitch of the musical sound data 11, a crossfader object 47 for adjusting the mixing ratio of the two musical sound data 11, and two musical sound data The main component is a beat guide window 49 having a sync operation object 48 for adjusting the beat timing of 11 and a playback line 49a indicating the playback position of the musical sound data 11, and displaying the progress of the beat of each musical sound data 11. As an element.

  In this embodiment, the file name of the musical tone data 11 stored in advance in the ROM 12 is displayed as a reproducible musical tone name in the musical tone selection windows 42a and 42b, but the user operates the controller 13. Then, the file name of the musical sound data 11 stored in a place other than the ROM 12 may be displayed in accordance with the designation of the place where the file name of the musical sound data 11 is referred.

  Here, in this embodiment, when displaying a reproducible sound name in the sound selection windows 42a and 42b, the control unit 11 stores, for example, beat guide files 11b of a plurality of sound data 11 of three or more songs. A comparison is made, and a playlist is created so that the musical sound data 11 having relatively close reproduction pitches is collected, and the playlist is displayed in the musical tone selection windows 42a and 42b. At this time, for example, genre information may be further examined.

  Specifically, the control unit 11 randomly selects the first song in the playlist, and then checks the reproduction pitch (preceding song pitch) of the first song. If the playback pitch of the song changes midway, the playback pitch at a representative position such as the beginning of the song may be calculated. Next, the control unit 11 randomly selects music candidates to be included in the playlist, and calculates the playback pitch (following music pitch) of the music. If the difference between the preceding song pitch and the succeeding song pitch is larger than a predetermined value, the process is repeated again from the process of randomly selecting a song candidate to be included in the next playlist.

  If the difference between the preceding song pitch and the succeeding song pitch is smaller than a predetermined value, the song candidate is added to the playlist, and the playback pitch of the added song is set as the preceding song pitch. Returning to the process of randomly selecting candidate songs to be included in the list, the process continues.

  Further, when considering genre information, it is checked whether the genre of the preceding song and the candidate genre of the succeeding song satisfy a predetermined genre condition, and the succeeding song candidate is succeeded only when the genre information is satisfied. It can be a song. Here, the genre condition can be information that determines whether or not continuous reproduction is permitted for each combination of the genre of the preceding song and the genre of the succeeding song.

  When the playlist is displayed in the tone selection windows 42a and 42b as described above, the user operates the controller 13 to move the cursors 41a and 41b, thereby changing or reproducing the contents of the playlist. It is also possible to change the order of musical tones.

[Command comment addition processing]
When the order of the reproduced musical sounds is determined, a command comment for appropriately connecting the reproduced musical sounds can be added in accordance with the order. Specifically, as shown in FIG. 7, the control unit 1 records a record object 50a representing the musical tone data 11 of the preceding musical tone on the left or right turntable object 43a or 43b in accordance with the interface screen generation code 8b. Alternatively, the image processing unit 2 is controlled to display 50b. Similarly, the control unit 1 controls the image processing unit 2 to display the record object 50b or 50a representing the musical tone data 11 of the subsequent musical tone on the right or left turntable object 43b or 43a. In the state shown in FIG. 7, the record object 50a representing the musical sound data 11 of the musical piece D that is the preceding musical sound is displayed on the left turntable object 43a, and the musical piece F that is the subsequent musical sound is displayed on the right turntable object 43b. A record object 50b representing the musical sound data 11 is displayed.

  The record objects 50a and 50b display reproduction lines 51a and 51b indicating the reproduction position of the musical sound data 11, so that the user can visually recognize the reproduction position of the musical sound data 11, and the reproduction line 51a. , 51b are moved and displayed in accordance with the reproduction position of the musical sound data 11.

  As shown in FIG. 7, the control unit 1 refers to the beat guide file 11b of the musical sound data 11 indicated by the cursors 41a and 41b according to the interface screen generation code 8b, and beat timings of those musical sound data 11 The image processing unit 2 is controlled to display beat guide objects 52 a and 52 b representing the reproduction pitch in the beat guide window 49. Specifically, the control unit 1 first refers to the beat guide file 11b, extracts the beat timing (reproduction position) of the musical sound data 11 to be reproduced, and sets the time interval of the beat sound as the reproduction pitch according to the extracted timing. calculate. Next, as shown in FIG. 7, the control unit 1 is arranged at the beat position, and a plurality of beat timing display objects 53 (53a, 53b) to which the corresponding beat numbers (sequential numbers assigned to each beat) are assigned. ) And a pitch display object 54 (54a, 54b) arranged between the beat timing display objects 53, and controls display of the beat guide object 52 (52a, 52b). When a command comment is added to the beat guide file 11b, the control unit 1 visually displays the comment at a position in the beat guide object 52 corresponding to the beat with the command comment.

  In the musical sound reproducing apparatus according to the present embodiment, the user can rotate and move the reproduction line 51a or 51b provided on the record object 50a or 50b by rotating the analog operation unit 23R or 23L. When the user rotates the reproduction line 51a or 51b, the corresponding beat guide object 52a or 52b is also moved and displayed. In this way, the user can select a beat timing to which a command comment is to be added by aligning the beat timing display object 53a or 53b displayed on the beat guide object 52a or 52b with the reproduction line 49a.

  When the user presses the right direction key 21c in a state where the beat timing display object 53a or 53b corresponding to the beat timing to be selected overlaps with the playback line 49a, as shown in FIG. (Command comment) is displayed in a pull-down menu format, for example. In this state, the user can select which command comment is added to the beat timing by further pressing the down direction key 21b or the up direction key 21a. The decision to add a command comment is made by further pressing the ○ button 22c.

  Here, the meaning of each command comment in the present embodiment will be described. HEAD (head) indicates the start position of 4-bar fade-in. In other words, HEAD is a command for introducing music while changing the volume from the lowest volume to the specified volume within 4 bars, and the position where this command is added represents the position where the introduction is started. Similarly, LONG HEAD (long head) indicates the start position of 16-bar fade-in. TAIL indicates the starting position of 4-bar fade-out. LONG TAIL (long tail) indicates the start position of 16-bar fade-out. CUTIN (cut-in) indicates a cut-in position (stops the currently playing song and starts playing the next song). That is, it indicates the start when switching songs without using the fade effect. SABI indicates a reference position where a predetermined effect is applied to a musical sound. In other words, it indicates the beginning of the theme part of the song, and applies effects before and after. “BREAK” indicates that the DUB portion of another musical tone is overlapped for 16 bars from this position. DUB (dub) indicates that it is overlaid on the BRAKE part of another musical sound for 16 bars from this position.

  Of these eight types of command comments, CUTIN, HEAD, and LONG HEAD mean that it is desired to start playback of the musical sound from the beat timing to which it is attached, and are also referred to as start position instruction command comments. Further, TAIL and LONG TAIL mean that it is desired to end the reproduction of the musical sound at the beat timing to which it is attached or to use it as a reference for the end of the reproduction, and is also referred to as an end position instruction command comment. The end position instruction command comment attached to the preceding musical tone has a function of indicating a specific connection form by being paired with the start position instruction command comment attached to the subsequent musical sound.

  In this embodiment, the connection form determined by the pair of the end position instruction command comment and the start position instruction command comment is set so that priority is given to processing that requires only a short time. Specifically, even if the end position instruction command comment is either TAIL or LONGTAIL, if the start position instruction command comment is CUTIN, basically the beat with TAIL or LONG TAIL added The preceding musical tone ends at the timing, and the cut-in of the subsequent musical tone is started from the beat timing to which CUTIN is added. Regarding the combination of TAIL, LONG TAIL, HEAD, and LONG HEAD, four-bar crossfades are performed except for the combination of LONG TAIL and LONG HEAD. Only in the case of a combination of LONG TAIL and LONG HEAD, a long mix, that is, a crossfade over 16 bars is performed.

  Note that any number of start position instruction command comments and end position instruction command comments may be set in one musical tone. More specifically, a plurality of HEAD, TAIL, CUTIN, etc. may be provided in one musical tone. Also, for example, in one musical tone, an end position instruction command comment is added such that TAIL is added to the beat timing of the beat number 12 and HEAD is added to the beat timing of the beat number 16. A start position instruction command comment may be added at a beat timing later than the beat timing. Furthermore, the musical sound reproducing apparatus of the present embodiment is provided with a start position instruction command comment such as HEAD or CUTIN during the musical sound, and when there is no end position instruction command comment such as TAIL at the subsequent positions. When the musical sound data is sent to the reproduction process, the TAIL is set to be automatically inserted at an appropriate position. Therefore, the user is not nervous about the context of the start position instruction command comment and the end position instruction command comment.

  Here, the insertion position of the end position instruction command comment such as TAIL can be set to, for example, a beat timing representing the beginning of the previous bar by a predetermined number of bars greater than or equal to a predetermined number of bars from the start position instruction command comment.

  As described above, according to the present embodiment, the user can add a start position instruction command comment and an end position instruction command comment to an arbitrary beat timing, and therefore, an arbitrary reproduction position and a subsequent position in the preceding musical sound. It is possible to easily and appropriately connect an arbitrary reproduction position in the musical sound, and the connection form can be appropriately selected.

[Music connection playback processing]
The tone reproduction apparatus according to the present embodiment refers to the command comment added to each of the plurality of tone data 11 and each reproduction pitch, and appropriately connects and reproduces the tone data 11 as described below. be able to. In the present embodiment, the processing described below is included in the musical tone reproduction processing code 8a of the musical tone reproduction program 8, and the control unit 1 executes the following processing according to the musical tone reproduction processing code 8a. To do.

  FIG. 9 is a flowchart showing a musical tone reproduction process in the present embodiment. In the figure, first, in step S1, the control unit 1 refers to the beat guide file 11b of the preceding musical sound and the subsequent musical sound, and determines whether or not the difference between the reproduction pitches is equal to or smaller than a predetermined value (step S2). . In the present embodiment, the predetermined value is 8%. That is, it is determined whether or not the difference between the playback pitch of the preceding musical sound and the playback pitch of the subsequent musical sound is 8%.

  When the reproduction pitch of each of the preceding musical tone and the subsequent musical tone varies through the musical tone, the one obtained from the first predetermined number of beat timing groups of the beat guide file 11b of each musical tone is used. The playback pitch may be used. The reason why the playback pitch is specified in this way is not because the processing described below is impossible with other methods, but is merely for simplifying the processing described below, and the processing is complicated. In such a case, the playback pitch at the time of connection (at the time of fade-in, fade-out, cut-in, etc.) may be used as the playback pitch of the musical sound.

  When the difference between the playback pitches of the preceding musical sound and the subsequent musical sound is 8% or less, the control unit 1 first changes the playback pitch of the preceding musical sound so as to gradually approach the playback pitch of the subsequent musical sound (step S3). ). However, in the present embodiment, the playback pitch of the preceding musical sound is changed only up to 2%. Even if a change of 2% is added to the reproduction pitch of the preceding musical sound, if the reproduction pitch of the preceding musical sound and the subsequent musical sound are not synchronized, the reproduction pitch of the subsequent musical sound is changed to synchronize the two. In this way, when the desired playback end position of the preceding musical sound indicated by TAIL or LONG TAIL matches the desired playback start position of the subsequent musical sound indicated by CUTIN, HEAD, or LONG HEAD, the playback pitch of the preceding musical sound and the subsequent musical sound is matched. The playback pitches of the preceding musical sound and / or the subsequent musical sound are changed so that they are synchronized with each other. Note that the method of changing the reproduction pitch is performed by a widely known process such as changing the reading speed of the musical sound data.

  Further, the control unit 1 synchronizes the reproduction pitches of both musical sounds when the desired reproduction end position of the preceding musical sound matches the desired reproduction start position of the subsequent musical music as described above, and is added to the preceding musical sound. The connection form defined by the combination of the end position instruction command comment and the start position instruction command comment added to the subsequent musical tone is realized (step S4). For example, when the end position instruction command comment added to the preceding musical sound is LONG TIL and the start position instruction command comment added to the subsequent musical sound is LONG HEAD, the playback pitch of the preceding musical sound and the subsequent musical sound is 16 Crossfade is performed in a synchronized manner across the bars. When the end position instruction command comment added to the preceding musical sound is TAIL or LONG TAIL and the start position instruction command comment added to the subsequent musical sound is CUTIN, the reproduction pitches of both musical sounds are synchronized. The cut-in is performed above.

  Note that when performing the above-described reproduction pitch synchronization processing, for example, when the reproduction pitch of the preceding musical sound is 180 and the reproduction pitch of the subsequent musical sound is 168, the musical sound (continued) that is reproduced following the subsequent musical sound. When the playback pitch of the subsequent music is 178, when connecting the preceding music and the subsequent music, the playback pitch of the subsequent music is faster than 168 which is the original playback pitch of the subsequent music. It is good also as synchronizing as 174 which is a slower pitch than 178 which is a reproduction pitch of a succeeding musical tone. In this way, after the preceding musical sound and the subsequent musical sound are synchronized and the reproduction has moved to the subsequent musical sound, the subsequent musical sound is reproduced with 174 as the reproduction pitch.

If the playback pitch of the preceding musical tone is faster than the playback pitch of the subsequent musical tone and the playback pitch of the subsequent musical tone is faster than the playback pitch of the subsequent musical tone, the above is a pitch that is faster than the playback pitch of the subsequent musical tone. Similarly, if the playback pitch of the preceding musical tone is slower than the playback pitch of the subsequent musical tone and the playback pitch of the subsequent musical tone is slower than the playback pitch of the subsequent musical tone, the subsequent musical tone is It may be played back at a pitch slower than the playback pitch of the subsequent musical sound.

  On the other hand, if the difference between the reproduction pitches of the preceding musical sound and the subsequent musical sound is not less than 8%, the control unit 1 connects both musical sounds without synchronizing the reproduction pitches of both musical sounds.

  Specifically, if the difference between the playback pitches of the preceding musical tone and the subsequent musical tone is not less than 8%, the control unit 1 determines in step S5 whether the start position instruction command comment embedded in the subsequent musical tone is CUTIN. Judge whether or not.

  When the subsequent musical tone start position instruction command comment is CUTIN, the control unit 1 executes a so-called Stop & Go (stop and go) as a connection form of both musical tones (step S6). Here, “Stop & Go” means that the preceding musical tone is ended at the fourth measure from the position where the preceding musical tone end position instruction command comment is added, and the subsequent musical sound is usually moved from the position where the starting musical position instruction command comment is added after one beat. It is a connection form to be reproduced.

  In the above description, Fadeout & Cutin (fade out and cut in) may be executed instead of Stop & Go. Here, Fadeout & Cutin is a connection form in which the preceding musical sound is faded out over three bars, and then the subsequent musical sound is cut in at the position of the head of the next bar after the first musical bar has been released.

  If the difference between the playback pitches of the preceding musical sound and the subsequent musical sound is not within 8%, and the start position instruction command comment of the subsequent musical sound is not CUTIN, the control unit 1 in step S7, The crossfade is performed without synchronizing the playback pitch of the musical sound and the subsequent musical sound over four bars.

  As described above, according to the embodiment of the present invention, two musical sounds can be appropriately and easily connected and reproduced using a command comment.

  In this way, when multiple music sounds are connected and repeatedly played back repeatedly, what kind of sounds are connected and played by other people in what order, how are the sounds before and after a certain tone The desire to know whether or not there is a high probability that a particular musical sound will be used will grow in the user.

  In this embodiment, since what kind of musical sound is played in what order has already been created as a playlist, if it is shared with others, the above-mentioned desire is satisfied. Can do.

  More specifically, as shown in FIG. 10, the control unit 1 of the music sound reproducing device 100 according to the present embodiment transmits a playlist to the playlist database 200 through an electric communication line in accordance with a user instruction or automatically. The communication unit 14 is controlled to transmit. Similarly, playlists are transmitted and stored in the playlist database 200 from the tone reproduction apparatuses 101, 102, and 103 possessed by other users. In this way, the play list database 200 stores information about what musical sounds are played in what order. Therefore, the user refers to the playlist database 200, and what musical sound is connected and reproduced by other users in what order, and what musical sound is likely to be used before and after a certain musical sound. You can know if it is expensive.

  In addition, when a playlist created by a celebrity is registered in the playlist database 200, by acquiring it from the playlist database 200, a plurality of musical sounds selected by the celebrity can be enjoyed in the selected order. be able to.

  In addition, when a playlist of another user or the like is obtained as described above and an attempt is made to enjoy the musical tone reproduction process, there may be a musical tone that is not owned by the musical tone listed in the playlist. is there. In such a case, the control unit 1 controls the communication unit 14 to transmit a musical tone ID that is an insufficient musical tone ID to the music distribution shop or EMD (Electronic Music Distribution) shop, and corresponds to the musical tone ID. Music to be played can be purchased and downloaded from a music distribution shop or EMD shop.

  Also, if a command comment group input at the time of reproduction of the playlist is associated with the playlist and distributed, for example, a DJ mix created by another player or a celebrity can be enjoyed. That is, the musical sound reproducing apparatus 100 continuously reproduces a plurality of pieces of music based on the acquired playlist and command comment group. In this case, during playback (DJ mix), it may be desired to skip the currently played song and listen to the next song. In this case, if reproduction of the current song is stopped and data is reproduced from the beginning of the next song, the DJ quality is lost, and continuous reproduction of the song cannot be enjoyed.

  Therefore, in this embodiment, when the user gives an instruction to start playback of the next song, a command comment of HEAD or LONG HEAD is inserted at the head of the next song to be played back, and the current playback is performed. A TAIL or LONG TAIL command comment is inserted at the next beat timing of the middle song. As a result, a crossfade is performed from the currently playing song to the next song, and the songs are continuously played. Note that the length of the crossfade (whether HEAD and TAIL are used or LONG HEAD or LONG TAIL is used) may be set in advance by the user.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the description and the drawings that form part of the disclosure of the present invention according to this embodiment. For example, in the above-described embodiment, it is determined whether or not the process of synchronizing the reproduction pitch is performed depending on whether or not the difference between the reproduction pitches of the preceding musical sound and the subsequent musical sound is within 8%. The predetermined value set to 8% may be a variable value and may be changed for each genre.

  As described above, according to the embodiment of the present invention, a command comment is attached to the beat guide file having the reproduction pitch and beat timing of the musical sound data, and according to the contents of the command comment, the sound data file of the preceding musical sound and It is possible to continuously reproduce the preceding musical sound and the subsequent musical sound by connecting the sound data file of the subsequent musical sound. For example, an end position instruction command comment indicating the desired reproduction end position of the preceding musical sound is attached to the beat guide file of the preceding musical sound, and a start position instruction indicating the desired reproduction starting position of the subsequent musical sound is added to the beat guide file of the subsequent musical sound. By attaching command comments, it is easy to use these to match the desired playback end position of the preceding musical sound and the desired playback start position of the subsequent musical sound, and to continuously play the preceding musical sound and the subsequent musical sound. It becomes possible.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  Further, in the present specification, the term “unit” does not necessarily mean a physical means, but includes a case where the function of each unit is realized by software. Furthermore, the function of one part may be realized by two or more physical means, or the function of two or more parts may be realized by one physical means.

It is a block diagram which shows the internal structure of the musical tone reproduction apparatus by one embodiment of this invention. It is a block diagram which shows the structure of the musical tone reproduction program by one embodiment of this invention. (A) is a block diagram which shows the structure of the musical tone data by one Embodiment of this invention, (b) is a figure which shows an example of a beat guide file. It is a figure for demonstrating an example of the content of the sound data shown in FIG. It is a schematic diagram which shows the structure of the controller shown in FIG. It is a schematic diagram which shows the structure of the interface screen by one embodiment of this invention. It is a schematic diagram which shows the structure of the interface screen of the state by which two musical sound data were displayed on right and left. It is a figure for demonstrating the process which selects the command comment which is a reserved word, and adds it to a beat guide file. It is a flowchart which shows a musical tone reproduction process in this Embodiment. It is a figure for demonstrating the method of the musical tone acquisition for enabling transmission / reception of a playlist, and the reproduction | regeneration shown by the playlist.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Image processing part, 3 ... Display, 4 ... Display control part, 5 ... Speaker, 6 ... Sound processing part, 7 ... Optical disk, 8 ... Music reproduction program, 8a ... Music reproduction processing code, 8b ... interface screen generation code, 8c ... communication processing code, 8d ... processing data, 9 ... disk driver, 10 ... RAM, 11 ... musical sound data, 11a ... sound data file, 11b ... beat guide file, 12 ... ROM , 13 ... controller, 14 ... communication section, 49 ... beat guide window, 49a ... playback line, 51a, 51b ... playback line, 52, 52a, 52b ... beat guide object, 53, 53a, 53b ... beat timing display object, 54 , 54a, 54b ... pitch display objects, 100, 101, 102, 103 ... Sound reproducing apparatus, 200 ... playlist database, 300 ... music distribution shop.

Claims (20)

A musical sound playback device for connecting a plurality of musical sounds,
A plurality of sound data files associated with each musical sound to be reproduced, and a beat guide file to which a command comment indicating what editing is possible at which position in the musical sound is added . A recording unit for recording musical sound data at least temporarily;
A control unit that edits the sound data file of the plurality of musical sound data recorded in the recording unit so as to be connected according to the command comment ;
A sound processing unit that outputs sound while connecting a plurality of the sound data files according to the control of the control unit;
Before SL control unit, when performing previously controlled for connecting the sound data file for subsequent tone is the tone that is subsequently reproduced sound data file and the prior musical preceding tone is tone to be reproduced to, edited in response to said command comments of the command comments and the subsequent tone of the preceding musical tone reproducing apparatus characterized by continuously reproduced. The musical sound reproducing device according to claim 1,
The command comment includes a start position instruction command comment attached to the desired reproduction start position of the musical sound and an end position instruction command comment attached to the desired reproduction end position of the musical sound,
The control unit refers to the end position instruction command comment added to the beat guide file included in the preceding musical sound and the start position instruction command comment added to the beat guide file included in the subsequent musical sound. A musical sound reproducing apparatus, wherein a desired reproduction end position of the preceding musical sound is matched with a desired reproduction start position of the subsequent musical sound. The music sound reproducing device according to claim 1, wherein the beat guide file for each of the plurality of music data includes a reproduction pitch indicating a speed of reproducing the associated sound data file,
The control unit, when performing connection control between the sound data file of the preceding musical sound that is the musical sound that is reproduced in advance and the sound data file of the subsequent musical sound that is the musical sound that is reproduced following the preceding musical sound, Based on the relationship between the reproduction pitch of the preceding musical sound and the reproduction pitch of the subsequent musical sound, at least one of the reproduction pitch of the preceding musical sound and the reproduction pitch of the subsequent musical sound is adjusted for continuous reproduction. To play music. It is a musical sound reproduction apparatus of Claim 3, Comprising:
The control unit refers to the beat guide file of each of the preceding musical sound and the subsequent musical sound, and if the difference in the reproduction pitch between the preceding musical sound and the subsequent musical sound is equal to or less than a predetermined value, the preceding musical sound When the playback end desired position of the preceding musical sound matches the playback start desired position of the subsequent musical sound by gradually bringing the playback pitch of at least one of the subsequent musical sounds closer to the other playback pitch, A musical sound reproducing apparatus for continuously reproducing the preceding musical sound and the subsequent musical sound so that the reproduction pitches of the subsequent musical sounds are synchronized with each other. It is a musical sound reproduction apparatus of Claim 3, Comprising:
When the playback pitch of the preceding musical tone is faster than the playback pitch of the subsequent musical tone, and the playback pitch of the subsequent musical tone that is played following the subsequent musical tone is faster than the playback pitch of the subsequent musical tone, The control unit reproduces the subsequent musical sound at a pitch faster than the reproduction pitch of the subsequent musical sound, and the reproduction pitch of the preceding musical sound is slower than the reproduction pitch of the subsequent musical sound, and is changed to the subsequent musical sound. When the playback pitch of the subsequent musical tone to be subsequently played back is slower than the playback pitch of the subsequent musical tone, the control unit plays back the subsequent musical tone at a pitch slower than the playback pitch of the subsequent musical tone. A musical sound reproducing apparatus for controlling the voice processing unit. It is a musical sound reproducing device according to any one of claims 3 to 5,
When there are three or more musical sounds to be reproduced, the control unit sequentially reproduces musical sounds having a relatively close reproduction pitch in consideration of the reproduction pitch indicated by the beat guide file of each musical sound. In this way, the musical sound reproducing apparatus determines the reproduction order of the plurality of musical sound data. It is a musical sound reproduction apparatus as described in any one of Claims 1-6,
A musical sound reproducing apparatus, further comprising a communication unit for performing information communication processing using a telecommunication line. The musical sound reproducing device according to claim 7, wherein
The control unit includes a plurality of musical sounds listed in a playlist indicating a reproduction order of the plurality of musical sounds,
When the plurality of music data recorded in the recording unit are collated and it is determined that there is music data that is insufficient for reproduction of the music listed in the playlist, the music data that is insufficient is transmitted through a telecommunication line. The musical tone reproduction apparatus is characterized in that the communication unit is controlled so as to download the music, and the downloaded musical tone data is recorded at least temporarily in the recording unit. For each musical sound to be played, a plurality of musical sound data including a sound data file associated with each other and a beat guide file to which a command comment indicating what editing is possible at which position in the musical sound is added. , A musical sound reproduction method for reproducing the musical sound while connecting according to the command comment ,
The command comment of the preceding musical sound when connecting the sound data file of the preceding musical sound that is the musical sound that is reproduced in advance and the sound data file of the subsequent musical sound that is reproduced after the preceding musical sound. wherein the subsequent tone in response to a command comments, tone reproduction method characterized by reproducing said sound data file of the sound data file and the subsequent tone of the preceding tone contiguous with. A method for reproducing a musical sound according to claim 9,
Read the playback pitch indicating the speed of playback of the sound data file included in the beat guide file for each musical sound,
When the sound data file of the preceding musical sound that is the musical sound that is reproduced in advance and the sound data file of the subsequent musical sound that is reproduced following the preceding musical sound are connected, the reproduction pitch of the preceding musical sound wherein from the relationship between the playback pitch of the succeeding tone, by adjusting at least one of said playback pitch of the succeeding tone and the playback pitch of the preceding tone and tone reproduction method characterized by continuously reproduced . For each musical sound to be played, a plurality of musical sound data including a sound data file associated with each other and a beat guide file to which a command comment indicating what editing is possible at which position in the musical sound is added. A data recording process for at least temporarily recording in the recording unit;
A data connection process for connecting the sound data files of the plurality of musical sound data recorded in the recording unit according to the command comment ;
A musical sound reproduction program for causing a computer to execute sound output processing for outputting sound of the connected sound data file,
The beat guide file for each of the plurality of musical sound data further includes a process for enabling addition of a command comment indicating what editing is possible at which position in the musical sound,
In the data connection process, when connecting the sound data file of the preceding musical sound that is the musical sound that is reproduced in advance and the sound data file of the subsequent musical sound that is the musical sound that is reproduced following the preceding musical sound, preceding tone said command comments and the subsequent musical said command comments and tone reproduction program characterized by continuously reproduced in accordance with the of. A musical sound reproduction program according to claim 11,
The command comment includes a start position instruction command comment attached to the desired reproduction start position of the musical sound and an end position instruction command comment attached to the desired reproduction end position of the musical sound,
The data connection process refers to the end position instruction command comment added to the beat guide file of the preceding musical sound and the start position instruction command comment added to the beat guide file of the subsequent musical sound. Then, the musical sound reproduction program characterized by matching the desired reproduction end position of the preceding musical sound with the desired reproduction start position of the subsequent musical sound. A musical sound reproduction program according to claim 11,
A process of reading a reproduction pitch indicating a speed of reproducing the sound data file from a beat guide file of each of the plurality of musical sound data;
In the data connection process, when connecting the sound data file of the preceding musical sound that is the musical sound that is reproduced in advance and the sound data file of the subsequent musical sound that is the musical sound that is reproduced following the preceding musical sound, the playback pitch of the preceding tone and the relationship between the playback pitch of the succeeding tone, by adjusting at least one of said playback pitch of the succeeding tone and the playback pitch of the preceding tone, to play continuously A featured music playback program. A musical sound reproduction program according to claim 13,
The data connection process includes
A process of determining whether a difference in the reproduction pitch between the preceding musical sound and the subsequent musical sound is equal to or less than a predetermined value with reference to respective beat guide files of the preceding musical sound and the subsequent musical sound;
When the difference between the reproduction pitches is equal to or less than the predetermined value, when the desired reproduction end position of the preceding musical sound matches the desired reproduction start position of the subsequent musical sound, the preceding musical sound and the subsequent musical sound A musical sound reproduction program comprising: a process of gradually bringing at least one reproduction pitch of the preceding musical sound and the subsequent musical sound closer to the other reproduction pitch so that the reproduction pitches are synchronized with each other. A musical sound reproduction program according to claim 13,
The data connection process includes
A process for determining whether or not the playback pitch of the subsequent musical sound that is reproduced following the subsequent musical sound is faster than the reproduction pitch of the subsequent musical sound, and the reproduction pitch of the preceding musical sound is greater than the reproduction pitch of the subsequent musical sound. If the playback pitch of the subsequent musical tone is faster / slower than the playback pitch of the subsequent musical tone, the subsequent musical tone is played back at a faster / slower pitch than that of the subsequent musical tone. And a musical sound reproduction program. A musical sound reproduction program according to any one of claims 11 to 15,
When there are three or more musical sounds to be reproduced, the musical sounds having relatively close reproduction pitches are sequentially reproduced in consideration of the reproduction pitch indicated by the beat guide file of each musical sound. A musical sound reproduction program comprising a process for determining a reproduction order of the plurality of musical sound data. The musical sound reproducing device according to claim 1,
When the control unit receives an instruction to start playback of the next music data during playback of the music data, the currently played music data and the music data of the next song crossfade. tone reproducing apparatus and controlling so as to be continuously reproduced. A method for reproducing a musical sound according to claim 9,
When accepting the instruction to start the reproduction of the next music data in the reproduction of the tone data, the tone data being currently reproduced, and crossfade the tone data of the next track, continuously reproduced A method for reproducing a musical sound, characterized by: The musical sound reproduction program according to claim 11, further comprising:
When accepting the instruction to start the reproduction of the next music data in the reproduction of the tone data, the tone data being currently reproduced, and crossfade the tone data of the next track, continuously reproduced A musical sound reproduction program characterized by causing a computer to execute a process for   A computer-readable recording medium storing the musical tone reproduction program according to any one of claims 11 to 16 and claim 19.

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