JP2003084761A - Musical piece information reproducing device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform reproduction of delayed musical piece information even if the reception of a portion of the musical piece information is delayed without affecting the reproduction of the musical pieces thereafter. SOLUTION: The musical piece information reproducing device has a receiving means for receiving the musical piece information added with time information indicating reproduction start time and reproduction end time, a reproducing means for reproducing the received musical piece information and a control means for controlling the reproduction so as to end the reproduction of the musical piece information by the reproducing means before the reproduction end time when the receiving means completes the reception of the musical piece information after the reproduction start time of the musical piece information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music information reproducing device, and more particularly, to a music information reproducing device for realizing net cable broadcasting via a communication network.

[0002]

2. Description of the Related Art A personal computer or the like can connect to a music site on a communication network such as the Internet and select and listen to a desired music from a plurality of music prepared therein.

When the user wants to listen to a plurality of songs continuously using the above music site, it is necessary to select the plurality of songs one by one. In other words, it is difficult for the above music site to continuously reproduce appropriate music like BGM.

Patent application 200 by the same applicant as the present invention
According to the invention described in No. 1-194604, the problems of the above music site are solved, and the user can enjoy continuous reproduction of music on the Internet without performing troublesome work such as selecting a plurality of music one by one. It became so.

[0005]

When delivering music information or the like via a communication network such as the Internet,
There may be a delay in receiving the music information. If the received music information is simply played back each time it is received, once the reception of the music information is delayed, the reproduction of all the music after that is delayed.

An object of the present invention is to provide a music information reproducing apparatus capable of reproducing delayed music information without affecting the reproduction of music after that even if reception of some music information is delayed. Is to provide.

Another object of the present invention is to provide a music information reproducing apparatus in which the user can listen to the requested music in a perfect form while correcting the progress of music reproduction.

[0008]

According to one aspect of the present invention, a music information reproducing apparatus includes a receiving means for receiving music information to which time information indicating a reproduction start time and a reproduction end time is added, and the reception means. When the receiving means completes the reception of the music information after the reproduction start time of the music information and the reproduction means for reproducing the music information, the reproduction of the music information by the reproduction means ends by the reproduction end time. And control means for controlling.

[0009]

1 is a block diagram showing an example of a wired network system 100 according to an embodiment of the present invention.

The network system 100 includes a PC site (server) 1, a communication network 2 such as the Internet, a PC terminal or a mobile terminal (hereinafter referred to as a client) 3, and a relay station 4.

The PC site 1 is, for example, a WWW (World Wide Web) server on the Internet, and provides various information and the like in response to various requests from connected clients. The PC site 1 records a plurality of pieces of music information, and continuously transmits the music information to the client 3 according to a request from the client 3 connected via the communication network 2.

The client 3 is, for example, a personal computer, an electronic musical instrument having a communication function, or a mobile terminal such as a mobile phone. The client 3 uses the network browser or the like to access the PC site 1 and obtain the music information.

When the client 3 is a wireless mobile terminal, it connects to the communication network via the relay station 4. The relay station 4 transmits / receives wireless communication from a mobile terminal to relay communication with the communication network 2, and is, for example, a carrier of a mobile phone.

In the above-mentioned net wired system 100, the user operates the client 3 so that the P
By connecting to the C site 1, the music information stored on the PC site 1 can be continuously received and reproduced.

FIG. 2 is a block diagram showing a hardware configuration of a PC terminal or a mobile terminal which constitutes the client 3 according to the embodiment of the present invention. The PC site 1 has almost the same configuration as the client 3.

The bus 6 has a RAM 8, a ROM 7 and a CPU.
9, timer 10, detection circuit 11, display circuit 13, external storage device 15, sound source circuit 16, communication interface 1
8. The MIDI interface 19 is connected.

The RAM 8 has a working area for the CPU 9 which stores flags, registers or buffers, various parameters and the like. It also has a temporary storage area for temporarily storing the received music information. The ROM 7 can store various parameters and control programs, or programs for implementing the present embodiment.

The CPU 9 performs calculation or control according to a control program or the like stored in the ROM 7 or the external storage device 15. The timer 10 is connected to the bus 6 and receives the basic clock signal, interrupt processing timing, etc.
Supply to PU9.

The operator 12 is connected to the detection circuit 11,
For example, a keyboard for character input, a mouse, a keyboard for performance, etc. may be used as long as it can output a signal according to a user's input.

The display circuit 13 is connected to the display 14 and can display various information on the display 14. The user inputs various information and performs various settings by referring to the information displayed on the display 14.

The external storage device 15 includes an interface for the external storage device, and is connected to the bus 6 via the interface. The external storage device 15 is, for example, a floppy (registered trademark) disk drive (FDD), hard disk drive (HDD), magneto-optical disk (M
O) drive, CD-ROM (compact disc-read only memory) drive, DVD (Digital)
l Versatile Disc) drive, semiconductor memory, and the like.

The external storage device 15 stores a music information database (DB) according to the present embodiment, which will be described later, a music selection list, a transmission list, various parameters, various data, and a program for realizing the present embodiment. You can

By reading the control program or the program for realizing the present embodiment from the external storage device 15 into the RAM 8, the CPU 9 can be caused to perform the same operation as when the ROM 7 stores the control program or the like. . By doing so, it is possible to easily add a control program or the like and upgrade the version.

The communication interface 18 can be connected to a communication network 2 such as a LAN (local area network), the Internet, or a telephone line. The communication interface 18 is connected to the server computer (PC site 1) via the communication network 2 and the HDD. External storage device 15, or RA
Music information, control programs, programs for realizing the present embodiment, and the like can be downloaded from the server computer into the M8 or the like.

The communication interface 18 and the communication network 2 are not limited to wired ones, but may be wireless ones.
Also, both may be provided.

The tone generator circuit 16 is an external storage device 15 or R.
A musical tone signal is generated in accordance with music information recorded in the AM 8 or the like or a performance signal, a MIDI signal or the like supplied from the electronic musical instrument 20 or the like connected to the MIDI interface 19, and is supplied to the sound system 17.

The sound system 17, which includes a D / A converter and a speaker, converts the supplied digital tone signal into an analog signal and outputs it.

MIDI interface (MIDI I
/ F) 19 can be connected to the electronic musical instrument 20, other musical instruments, audio equipment, computers, etc., and can transmit and receive at least MIDI signals.

When used as the PC site 1, the tone generator circuit 16, the sound system 17, the MIDI interface 19, the electronic musical instrument 20, and the like used for reproducing music information may be omitted.

FIG. 3 is a block diagram showing the functions of the wired network system 100 according to the embodiment of the present invention. In addition,
Although illustration of communication network 2 is omitted, PC site 1
Then, the client 3 is connected via the communication network 2 such as the Internet.

The music selection section 21 of the PC site 1 uses the music information D
By referring to the contents of B22 (recorded music information and the like), music information to be reproduced is selected from a plurality of recorded music information and written in the music selection list 23. The music information may be selected randomly or may be selected so as not to overlap with the music information selected previously. Also,
You may make it select based on information, such as a genre of music information.

The music selection section 21 further receives a request request, which will be described later, and adds the music information indicated by the request request to the head of the music selection list 23 together with the request flag. If some requested songs have already been added, this requested song is added to the end of the requested song group.

The request flag is a flag indicating that the song is a requested song, and is information for distinguishing the song information automatically selected by the song selection unit 21 from the song requested by the user.

The music information DB 22 is, for example, a database of music information stored in the external storage device 15 (FIG. 2) or the like. Plural pieces of music information are stored in the music information DB. The stored music information is, for example, SMF.
It is automatic performance data in conformity with the (Standard MIDI File) format. Also, for example,
It is automatic performance data such as a ringing melody based on the simple MIDI standard for mobile communication terminals. In addition, any file such as an audio file or a moving image file that can be distributed via the network 2 may be used. Also, a plurality of types of music information may be recorded.

The music selection list 23 is stored in, for example, the external storage device 15 (FIG. 2) or the RAM 8 and records the reproduction order of the music information selected by the music selection section 21. The music selection unit 21 reads the reproduction order of the music information recorded in the music selection list 23, and gives the reproduction unit 24 an instruction to reproduce the music information according to the reproduction order.

The reproducing unit 24 reads the music information from the music information DB 22 according to the instruction from the music selecting unit 21, and sends the read music information together with the time information sent from the time determining unit 25 to the transmitting / receiving unit 27.

The time determination unit 25 determines the reproduction start time and end time of the music information based on the current time obtained from the clock 26 and the time length of the music information read by the reproduction unit 24. The determined reproduction start time and end time are sent to the reproduction unit 24 as time information. The clock 26 is a normal clock that measures an absolute time (time).

The transmission / reception unit 27 adds time information to the music information sent from the reproduction unit 24, and all the clients 3 registered in the transmission list sent from the transmission destination determination unit 28.
The music information to which the time information is added is transmitted to the transmission address of.

When performing streaming reproduction,
The above time information is added only to the first packet of music information.

The transmitter / receiver 27 receives the request request transmitted from the client 3 and sends it to the music selection unit 21 and also receives other request information, and the destination determination unit 2
Send to 8. Other request information transmitted from the client 3 includes a connection request for starting connection with the PC site 1 and requesting start of transmission of music information, a resend request for requesting resending of already transmitted music information, and the PC site 1. There is an end request for ending the connection with and requesting to stop the transmission of the music information. Each request information includes data representing the type of the above request information, a user ID, and a transmission address of the client 3.

When a resend request is received from the above request information, the client which has instructed the reproducing section 24 to read the music information corresponding to the resend request and has sent the resend request to the read music information. Send to the address of 3.

The transmission destination determination unit 28 writes (or deletes) the user ID and the transmission address of the client 3 in the transmission list 29 according to the request information received from the transmission / reception unit 27. In addition, the transmission destination determination unit 28 uses the transmission list 29.
Is read out and sent to the transmitting / receiving unit 27.

The transmission list 29 is stored in, for example, the external storage device 15 (FIG. 2), the RAM 8 or the like, and at least the user ID of the client 3 that transmits the music information.
And the transmission address is recorded. The user ID and the transmission address are added to the transmission list 29 by the connection request from the user, and they are transmitted by the termination request.
Deleted from 9.

The request instruction unit 30 of the client 3 transmits the request request, connection request, and end request instructions input by the user to the transmission / reception unit 31. Request instruction unit 30
Is composed of, for example, the operator 12 of FIG.

The transmission / reception unit 31 attaches a user ID, a transmission address and the like to the request instruction received from the request instruction unit 30 and transmits it as request information to the PC site 1. When the request instruction is a resend request, the request information further includes information indicating music information stored on the client side or data identifying music information desired to be resent.

The transmitting / receiving unit 31 also receives the music information transmitted from the PC site 1 and the time information included therein. The received music information and time information are temporarily stored in the storage unit 32.
Remember.

The temporary storage unit 32 is, for example, the RAM 8 of FIG.
Alternatively, the external storage device 15 stores the music information and the time information sent from the transmission / reception unit 31 until the reproduction ends.

When the current time obtained from the clock 34 matches the reproduction start time (time information) of the music information stored in the temporary storage unit 32, the pronunciation (reproduction) unit 33 starts reading the music information. And pronounce it sequentially. The clock 34
Is a normal timepiece that keeps an absolute time (time) like the timepiece 26 described above.

FIG. 4 is a flow chart showing the main processing performed by the PC site 1. In addition, this main process is
The PC site 1 is always activated from the time the power is on to the time it is off.

At step SA1, main processing is started, various flags and buffers are initialized, and the routine proceeds to the next step SA2.

In step SA2, it is determined whether or not a new connection request has been received. When a new connection request is received, the process proceeds to step SA3 indicated by a YES arrow. If no new connection request has been received, the process proceeds to step SA4 indicated by a NO arrow.

At step SA3, the user ID and the transmission address of the client which transmitted the connection request are added to the transmission list. A billing list is created for the user whose user ID has been added to the transmission list. The billing list includes
For example, the connection start time and the end time of the user are recorded, and the connection fee is calculated and recorded based on the record. The number of requests is also recorded, and the amount of money corresponding to the number of requests is also recorded as a usage fee. Then, it progresses to step SA4.

At step SA4, it is judged if a new end request is received. If a new end request is received, the process proceeds to step SA5 indicated by a YES arrow. If no new end request has been received, the process proceeds to step SA6 indicated by a NO arrow.

In step SA5, the user ID and the transmission address of the client that has transmitted the termination request are deleted from the transmission list, and the charges recorded in the user's charging list are charged to the charging account of the user created in advance. . The charging method is, for example, a credit card, bank transfer, postal transfer, electronic money or the like, and any method may be used. Then, it progresses to step SA6.

At step SA6, it is determined whether or not the number of pieces of music information registered in the music selection list is less than a predetermined number (for example, 10 pieces). If it is less than the predetermined number, the process proceeds to step SA7 indicated by a YES arrow. If not less than the specified number,
The process proceeds to step SA8 indicated by a NO arrow.

At step SA7, a new song (music information) is selected from the song information DB and added to the end of the song selection list. Then, it progresses to the following step SA8.

In step SA8, it is determined whether or not a new request request has been received. If a new request request is received, step SA indicated by a YES arrow
Proceed to 9. If no new request request has been received, the process proceeds to step SA10 indicated by a NO arrow.

At step SA9, the requested song of the received request request is added to the beginning of the selected song list together with the request flag. The requested song is added to the beginning of the song selection list so that it is preferentially played. If some requested songs have already been added, this requested song is added to the end of the requested song group. Then, it progresses to the following step SA10.

At Step SA10, it is judged whether or not the server administrator inputs a server (site) stop instruction. If there is a server stop instruction, the process proceeds to step SA11 indicated by a YES arrow to end the main process.
If there is no stop instruction, step SA2 indicated by a NO arrow
Then, the above process is repeated.

FIG. 5 is a flow chart showing the music selection list reproduction processing performed at the PC site 1.

In step SB1, the music selection list reproducing process is started (interruption is permitted), and the process proceeds to the next step SB2. The music selection list reproduction process is an interrupt process that is activated every predetermined time. The predetermined time is set depending on the reproduction method of the music information.

When performing streaming reproduction, since one piece of music information is divided into a plurality of data packets and transmitted, an interrupt is made at the time period for creating the data packets.

In the case of performing the download reproduction, the interruption is applied at a time cycle in which the download is completed by the reproduction start time of the music information to be transmitted. When a plurality of pieces of music information are transmitted at one time, the earliest reproduction start time among them should be in time.

At step SB2, a predetermined amount of music information to be transmitted this time is read from the music information DB. The music information is read out in the order registered in the music selection list. The predetermined amount read here is the amount of data required to perform a few seconds of reproduction when performing streaming reproduction, and is the amount of data for one song or a plurality of songs when performing download reproduction. Then, it progresses to the following step SB3.

At step SB3, the reproduction start time and end time of the music information read at step SB2 are determined from the time length of the music information and the current time, and these are added to the music information as time information. After that, the next step SB
Go to 4.

In step SB4, the music information to which the time information is added in step SB3 is transmitted to all the clients (transmission addresses) registered in the transmission list. Music information of the same content is simultaneously transmitted to all clients. Then, it progresses to the following step SB5.

At step SB5, the music information for which all the information has been transmitted is deleted from the music selection list. Then, the process proceeds to the next step SB6, and the music selection list reproduction process is ended.

FIG. 6 is a flowchart showing the main processing performed by the client 3. In the present embodiment, it is assumed that software for connecting to the PC site 1 such as a network browser has been started before starting this main process.

At step SC1, main processing is started in response to a user's connection request instruction, and at next step SC2.
Proceed to.

At step SC2, a connection request is sent to the server (PC site) to connect to the server. Then, it progresses to the following step SC3. The connection request includes the user ID of the client and the transmission address.

In step SC3, if there is received music information (including time information), it is stored in the RAM 8 or a temporary storage area created in the external storage device 15 or the like.
Then, it progresses to the following step SC4. The reception of music information is regularly confirmed. If there is no received music information, this step SC3 is skipped and the process proceeds to the next step SC4.

In step SC4, it is determined whether or not the user has operated the request. If there is a request operation, step SC5 indicated by a YES arrow.
Proceed to. If there is no request operation, the process proceeds to step SC6 indicated by a NO arrow.

The operation of the request is performed as follows, for example. First, a request list, which is a list of songs that can be requested to the server (for example, song information stored in the song information DB of the PC site 1) is requested, the request list is received, and the received list is shown in FIG. Display on the display 14. The user selects a music piece (request music piece) for which a request is desired from the displayed request list, and operates the request request transmission switch configured by the operator 12 or the like in FIG. Note that a plurality of music pieces may be requested at the same time.

At step SC5, the request request is transmitted to the server. In the request request, the requested song (requested song) selected in step SC4
And the user ID and transmission address of the client. Then, the next step SC6
Proceed to.

At step SC6, it is detected whether or not the reproduction process described later is stopped. If the reproduction process is stopped, the process proceeds to step SC7 indicated by a YES arrow.
If the reproduction process is not stopped, that is, if the music is being reproduced, the process proceeds to step SC12 indicated by a NO arrow.

In step SC7, the music information having the reproduction start time before the current time from the temporary storage area (reproduction start at the current time, or music information which has been reproduced but should not be reproduced yet). To search. Then, it progresses to the following step SC8.

At step SC8, it is determined whether or not the corresponding music information is extracted by the search at step SC7. YES if the corresponding music information is extracted
The process proceeds to step SC9 indicated by the arrow. If the corresponding music information is not extracted, the process proceeds to step SC12 indicated by a NO arrow.

In step SC9, it is determined whether or not the extracted music information is the request music requested in step SC4. This judgment is made based on the presence or absence of the request flag. If it is a requested song, YE
The process proceeds to step SC10 indicated by the arrow S. If it is not the requested song, the process proceeds to step SC11 indicated by a NO arrow.

At step SC10, the start position of the music piece (request music piece) to be reproduced is set as the read start position, the tempo data recorded in the music information is set as the reproduction tempo, and the reproduction processing described later is started ( Allow interrupt for playback processing). Then, step SC1
Go to 2. Although details of the reproduction of the requested music are not described in the flowcharts showing the reproduction processing of FIGS. 7 and 9, the requested music is reproduced to the end of the music information (end time is ignored) and reproduced without delay. Is set, the next music piece is set to be read, and if there is a delay, the reproduction process is stopped to perform the reproduction correction process.

At step SC11, a reproduction correction process described later is performed. Then, it progresses to step SC12.

In step SC12, it is detected whether or not the user has issued a connection end instruction to the server. If there is an end instruction, the next step SC1 indicated by a YES arrow.
Go to 3. If there is no end instruction, the process returns to step SC3 indicated by a NO arrow.

At step SC13, an end request is transmitted to the server, and the reproducing process is ended. The end request includes the user ID of the client and the transmission address. After that, the process proceeds to the next Step SC14 to end the main process.

As described above, when the music to be reproduced is the request music, regardless of the start time, step S
The reproduction from the beginning to the end of the music is reproduced as usual without performing the reproduction correction processing of C11. By doing so, even if the distribution of the music information is delayed, the entire music requested by the user (want to listen) can be preferentially listened to.

FIG. 7 is a flow chart showing a first example of the reproduction process performed by the client 3. In the first example, the reproduction start is delayed (the reception of the music information is delayed) by advancing the reproduction tempo in consideration of the reproduction delay time.
Get back.

At step SD1, the reproduction process is started and the process proceeds to the next step SD2. The reproduction process is an interrupt process activated at each reproduction resolution timing.

The reproduction resolution timing is, for example, M
When the IDI data is reproduced, the MIDI clock timing is used, and when the audio data is reproduced, the sampling cycle timing is used.

At step SD2, it is judged whether or not the current timing is the end timing of the music reproduction (whether or not the music information being reproduced has been reproduced to the end). If it is the end timing, step SD3 indicated by a YES arrow.
Proceed to. If it is not the end timing, the process proceeds to step SD4 indicated by a NO arrow.

At step SD3, it is determined whether or not the current time exceeds the reproduction start time included in the music information to be reproduced next. If the playback start time has passed, Y
The process proceeds to step SD6 indicated by the ES arrow. If the playback start time has not been reached, step SD5 indicated by a NO arrow
Proceed to.

At step SD4, the music information to be processed at this timing is read from the temporary storage area and the music is reproduced. After that, the process proceeds to the next Step SD7, and the reproducing process is ended.

At step SD5, the musical tone being reproduced is muted, and the head position of the music information to be reproduced next is set as the read start position. This allows the next song to be played as scheduled. Then, the process proceeds to step SD7 to end the reproduction process.

At step SD6, the pronunciation of the music information currently being reproduced is stopped and interruption of the reproduction processing is prohibited (processing is stopped). That is, since the start of the reproduction of the next music is delayed, the delay is set to the preparation state for controlling the delay in steps SC6 to SC11 in FIG. After that, the process proceeds to the next Step SD7 to end the reproduction process.

The music information that has been reproduced is deleted from the temporary storage area.

FIG. 8 is a flow chart showing a first example of the reproduction correction processing performed in step SC11 of FIG.

At step SE1, the reproduction correction process is started, and the process proceeds to the next step SE2.

At step SE2, the ratio of the time interval between the reproduction end time and the current time of the reproduced music and the time length of the reproduced music is calculated. Then, it progresses to the following step SE3.

At step SE3, the reproduction tempo is controlled based on the ratio calculated at step SE2. Then, it progresses to the following step SE4.

The processing of steps SE2 and SE3 is as follows.
For example, the current time is 12:00, the end time of the reproduced music is 12: 2, the reproduction time length is 3 minutes, and the original reproduction tempo is 10 minutes.
When it is 0, ratio = reproduction time length (3 minutes) / time interval (2 minutes) = 1.5, and new reproduction tempo = original reproduction tempo (100) × ratio (1.5) = 150. Become.

In step SE4, it is determined whether or not the reproduction tempo controlled in step SE3 (the calculated new reproduction tempo) is below a predetermined value. If it is less than the predetermined value, the process proceeds to step SE5 indicated by a YES arrow. If not less than the predetermined value, the process proceeds to step SE6 indicated by a NO arrow.

This is because if the playback tempo becomes too fast,
Because the atmosphere of the music being played changes significantly,
In order to avoid this, this is a process for setting a limit value for the reproduction tempo. The predetermined value (limit value) is preferably changed according to the original tempo of the reproduced music. For example,
Set to twice the original tempo.

At step SE5, the start position of the reproduced music is set as the read start position, the reproduction process of FIG. 7 is activated (interruption is permitted), and the reproduction tempo controlled at step SE3 is set as the reproduction tempo. Then, the process proceeds to step SE7 to end the reproduction correction process.

At step SE6, the start position of the reproduced music is set as the read start position, the reproduction process of FIG. 7 is activated (interruption is permitted), and the predetermined value at step SE4 is set as the reproduction tempo. Then, the process proceeds to step SE7 to end the reproduction correction process.

As described above, according to the first example, the reproduction can be ended at the reproduction end time by speeding up the tempo of the reproduced music in consideration of the time when the reproduction is delayed.

Further, since the limit value of the reproduction tempo is set, it is possible to prevent the reproduction tempo from becoming too fast and changing the atmosphere of the music.

FIG. 9 is a flow chart showing a second example of the reproduction process performed by the client 3. In the second example, by fading out the music whose reproduction is delayed, the reproduction of the music is forcibly terminated at the reproduction end time, and the delay of the reproduction start (the delay of the reception of the music information) is corrected.

At step SF1, the reproducing process is started and the process proceeds to the next step SF2. The reproduction process is an interrupt process activated at each reproduction resolution timing.

At step SF2, it is determined whether or not the reproduction is set to be ended by fading out.
The fade-out setting is performed in step S of FIG. 10 described later.
It is done in G4. If it is set to end the reproduction by fade-out, the process proceeds to step SF3 indicated by a YES arrow, and if not set, the process proceeds to step SF5 indicated by a NO arrow.

In step SF3, it is determined whether or not the current timing is the fade-out period. The fade-out period is a few seconds before the reproduction end time. If it is the fade-out period, the process proceeds to step SF4 indicated by a YES arrow. NO if not fade-out period
The process proceeds to step SF5 indicated by the arrow.

At step SF4, the volume of the reproduced music is reduced by a predetermined amount. The predetermined amount here is a numerical value such that the volume can be reduced to zero within the fade-out period. Then, it progresses to the following step SF5. After the fade-out, the volume is returned to the value before the fade-out in preparation for the reproduction of the next music.

In step SF5, it is determined whether or not the current time has reached the reproduction end time of the music. If the reproduction end time has been reached, the process proceeds to step SF6 indicated by a YES arrow. If the reproduction end time has not been reached, the process proceeds to step SF7 indicated by a NO arrow.

At step SF6, the musical tone being reproduced is muted, and the beginning position of the music information to be reproduced next is set as the read start position. Then, the process proceeds to step SF8 to end the reproduction process.

At step SF7, the music information to be processed at this timing is read from the temporary storage area and the music is reproduced. Then, the process proceeds to the next step SF8, and the reproducing process is ended.

FIG. 10 is a flow chart showing a second example of the reproduction correction processing performed in step SC11 of FIG.

At step SG1, the reproduction correction process is started, and the process proceeds to the next step SG2.

At step SG2, the reproducible time of the reproduced music is calculated from the current time and the reproduction end time of the reproduced music. Then, it progresses to the following step SG3.

In step SG3, it is determined whether or not the time length of the reproducible time calculated in step SG2 is equal to or more than a predetermined value. The predetermined value here is a time sufficient to reproduce the music. That is, when the reproducible time is equal to or less than the predetermined value, it means that the reproducible time of the music whose reproduction is delayed is extremely short, and therefore the music is not reproduced. Alternatively, the predetermined value may be set as a ratio to the time length of the music. If the playable time is equal to or longer than the predetermined value, YE
The process proceeds to step SG4 indicated by the arrow S. If the reproducible time is not longer than the predetermined value, step SG indicated by a NO arrow
Go to 6.

At step SG4, the reproduction music of this time is set to end by fading out. Then, it progresses to the following step SG5.

At step SG5, the head position of the reproduced music is set as the read start position, and the reproducing process of FIG. 9 is activated (interruption is permitted). Then, step SG7
Then, the reproduction correction process ends.

At step SG6, the next reproduction music piece is searched from the temporary storage area, control is performed so as to start reproduction at the reproduction start time of the reproduction music piece, and the reproduction processing of FIG. 9 is activated (interruption permitted). To). After that, step S
The process proceeds to G7 to end the reproduction correction process.

As described above, according to the second example, since the reproduced music is faded in and ended at the reproduction end time, the reproduction can be ended at the reproduction end time.

Further, since the reproduction is ended by the fade-out, it is possible to naturally shift from the music sent and received to the next music.

FIG. 11 is a flow chart showing a third example of the reproduction process performed by the client 3. In the third example, reproduction of the transmitted music is started by fade-in from the position corresponding to the current time, and the reproduction delay is corrected.

At step SH1, the reproduction process is started and the process proceeds to the next step SH2. The reproduction process is an interrupt process activated at each reproduction resolution timing.

At step SH2, it is determined whether or not the reproduction is started by fading in. Fade-in setting is performed in step SI3 of FIG. 12 described later.
Done in. If the reproduction is set to start by fade-in, step SH3 indicated by the YES arrow
If not set, the process proceeds to step SH5 indicated by a NO arrow.

At step SH3, it is judged if the current timing is the fade-in period. The fade-in period is a few seconds after the start of reproduction. If it is the fade-in period, the process proceeds to step SH4 indicated by a YES arrow. If it is not the fade-in period, the process proceeds to step SH5 indicated by a NO arrow.

At step SH4, the volume of the reproduced music is increased by a predetermined amount. The predetermined amount here is a numerical value such that the volume can be increased from zero to the reproduction volume of the current music piece within the fade-in period. Then, it progresses to the following step SH5.

In step SH5, it is determined whether or not the current time has reached the reproduction end time of the music. If the reproduction end time has been reached, the process proceeds to step SH6 indicated by a YES arrow. If the reproduction end time has not been reached, the process proceeds to step SH7 indicated by a NO arrow.

At step SH6, the musical tone being reproduced is muted, and the head position of the music information to be reproduced next is set as the read start position. Then, the process proceeds to step SH8 to end the reproduction process.

At step SH7, the music information to be processed at this timing is read from the temporary storage area and the music is reproduced. Then, the process proceeds to the next step SH8, and the reproduction process is ended.

FIG. 12 is a flow chart showing a third example of the reproduction correction processing performed in step SC11 of FIG.
The reproduction correction process according to the third example is used together with the reproduction process according to the third example.

At step SI1, the reproduction correction process is started, and the process proceeds to the next step SI2.

At step SI2, the position corresponding to the current time of the reproduced music is set as the read start position. afterwards,
Proceed to next step SI3.

At step SI3, it is set to start the reproduction of the reproduced music by fade-in. Then, it progresses to the following step SI4.

At step SI4, the reproduction volume of the reproduced music is set to zero. Then, it progresses to the following step SI5.

At step SI5, the reproduction process shown in FIG. 11 is activated (interruption is permitted). After that, step S
The process proceeds to I6 to end the reproduction correction process.

Also in the third example, the second
Similar to the example, if the reproduction time of the reproduced music is extremely short, the reproduction may not be performed.

As described above, according to the third example of this embodiment, since the reproduction of the reproduced music is started by fading in from the time corresponding to the current time, the reproduction can be ended at the reproduction end time. I can.

Further, since the reproduction is started by the fade-in, the received music can be naturally started.
Therefore, the music from the previous song is natural.

As described above, according to the embodiment of the present invention, even if there is a delay in the reception of the music information, the reproduction correction process can end the reproduction of the reproduced music at the reproduction end time. Can be played on time.

Further, according to the embodiment, it is possible to listen to the entire received music as much as possible without affecting the reproduction time of the music after that.

Further, according to the embodiment, when the time during which the reproduced music can be reproduced is extremely short, it is possible to prevent the reproduction, so that it is possible to reduce the unnecessary reproduction processing of the music information.

Further, according to the embodiment, since the music requested by the user is reproduced without performing the reproduction correction processing, the music desired by the user can be completely reproduced even if the reception of the music information is delayed. I can listen.

The client 3 according to the embodiment of the present invention can be used in any form such as an electronic musical instrument, a personal computer + application software form, a portable communication terminal such as a mobile phone, a karaoke device, a game device, and an automatic playing piano. You may take

The present invention has been described above with reference to the embodiments.
The present invention is not limited to these. For example, it will be apparent to those skilled in the art that various changes, improvements, combinations and the like can be made.

[0144]

As described above, according to the present invention,
Even if the reception of some music information is delayed, it is possible to reproduce the delayed music information without affecting the reproduction of music after that.

Further, according to the present invention, the user can at least listen to the requested song in perfect form while correcting the progress of the song reproduction.

[Brief description of drawings]

FIG. 1 is an online wired system 1 according to an embodiment of the present invention.
10 is a block diagram showing an example of No. 00.

FIG. 2 is a block diagram showing a hardware configuration of a PC terminal or a mobile terminal that constitutes the client 3 according to the embodiment of the present invention.

FIG. 3 is a net wired system 1 according to an embodiment of the present invention.
It is a block diagram showing the function of 00.

FIG. 4 is a flowchart showing a main process performed by the PC site 1.

FIG. 5 is a flowchart showing a music selection list reproduction process performed on the PC site 1.

FIG. 6 is a flowchart showing main processing performed by the client 3.

FIG. 7 is a flowchart showing a first example of a reproduction process performed by the client 3.

FIG. 8 is a flowchart showing a first example of reproduction correction processing performed in step SC11 of FIG.

FIG. 9 is a flowchart showing a second example of reproduction processing performed by the client 3.

FIG. 10 is a flowchart showing a second example of reproduction correction processing performed in step SC11 of FIG.

FIG. 11 is a flowchart showing a third example of reproduction processing performed by the client 3.

FIG. 12 is a flowchart showing a third example of reproduction correction processing performed in step SC11 of FIG.

[Explanation of symbols]

1 ... PC site, 2 ... communication network, 3 ... client, 4 ... relay station, 6 ... bus, 7 ... ROM, 8 ... RA
M, 9 ... CPU, 10 ... Timer, 11 ... Detection circuit, 12
... operator, 13 ... display circuit, 14 ... display, 15
... external storage device, 16 ... sound source circuit, 17 ... sound system, 18 ... communication I / F, 19 ... MIDI I / F, 20
... electronic device, 21 ... music selection section, 22 ... music information DB, 23
… Music selection list, 24… Playback unit, 25… Time determination unit, 2
6, 34 ... Clock, 27, 31 ... Transmission / reception section, 28 ... Destination determination section, 29 ... Transmission list, 30 ... Request instruction section, 32 ...
Temporary storage unit, 33 ... Sound generation unit, 100 ... Wired system

Claims (9)

[Claims] 1. A receiving means for receiving music information to which time information indicating a reproduction start time and a reproduction end time is added, a reproducing means for reproducing the received music information, and a receiving means for reproducing the music information. A music information reproducing apparatus having a control means for controlling reproduction of the music information by the reproducing means to be finished by the reproduction end time when the reception of the music information is completed after the start time. 2. The control means controls the reproduction tempo of the music information by the reproduction means to be accelerated.
The described music information reproducing apparatus. 3. The music information reproducing apparatus according to claim 1, wherein the control means determines a reproduction tempo based on a time length between a current time and a reproduction ending time of the music information. 4. The music information reproducing apparatus according to claim 3, wherein the control means determines the reproduction tempo to be a predetermined value or less. 5. The music information reproducing apparatus according to claim 1, wherein the control means controls the reproduction of the music information by the reproducing means to end by fading out at the reproduction end time. 6. The music information reproducing apparatus according to claim 1, wherein the control means controls the reproduction of the music information by the reproducing means so as to start the fade-in reproduction from a position corresponding to the current time. 7. The control means controls the reproducing means so as not to reproduce the music information when the time length between the current time and the reproduction end time of the music information is less than a predetermined length. Item 7. The music information reproducing device according to any one of items 1 to 6. 8. The apparatus further comprises transmitting means for transmitting a request request for music information desired to be received, and when the receiving means receives the requested music information, a reproduction start included in the requested music information. The music information according to any one of claims 1 to 7, wherein the reproduction of the requested music information is started from the time when the reproduction becomes possible after the time, and the reproduction means is controlled to reproduce the music information to the end as usual. Playback device. 9. A reception procedure for receiving music information to which time information indicating a reproduction start time and a reproduction end time is added, a reproduction procedure for reproducing the received music information, and the reception procedure for reproducing the music information. In order to make a computer execute a music information reproduction procedure having a control procedure for controlling the reproduction of the music information by the reproduction procedure to end by the reproduction end time when the music information is completely received after the start time. Program of.