WO2004010411A1 - Systeme et procede de distribution de donnees, serveur et programme de distribution de donnees, procede de creation de fichiers de compositions musicales, et support d'enregistrement - Google Patents

Systeme et procede de distribution de donnees, serveur et programme de distribution de donnees, procede de creation de fichiers de compositions musicales, et support d'enregistrement Download PDF

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Publication number
WO2004010411A1
WO2004010411A1 PCT/JP2003/009195 JP0309195W WO2004010411A1 WO 2004010411 A1 WO2004010411 A1 WO 2004010411A1 JP 0309195 W JP0309195 W JP 0309195W WO 2004010411 A1 WO2004010411 A1 WO 2004010411A1
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WO
WIPO (PCT)
Prior art keywords
data
music
singing voice
format
midi
Prior art date
Application number
PCT/JP2003/009195
Other languages
English (en)
Japanese (ja)
Inventor
Hirohito Kimoto
Original Assignee
Suns-K Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suns-K Co., Ltd. filed Critical Suns-K Co., Ltd.
Priority to JP2004522767A priority Critical patent/JPWO2004010411A1/ja
Publication of WO2004010411A1 publication Critical patent/WO2004010411A1/fr

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • G10H1/0058—Transmission between separate instruments or between individual components of a musical system
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/005—Device type or category
    • G10H2230/021—Mobile ringtone, i.e. generation, transmission, conversion or downloading of ringing tones or other sounds for mobile telephony; Special musical data formats or protocols herefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/016—File editing, i.e. modifying musical data files or streams as such
    • G10H2240/021—File editing, i.e. modifying musical data files or streams as such for MIDI-like files or data streams
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/031—File merging MIDI, i.e. merging or mixing a MIDI-like file or stream with a non-MIDI file or stream, e.g. audio or video
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011—Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/046—File format, i.e. specific or non-standard musical file format used in or adapted for electrophonic musical instruments, e.g. in wavetables
    • G10H2240/056—MIDI or other note-oriented file format
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
    • G10H2240/201—Physical layer or hardware aspects of transmission to or from an electrophonic musical instrument, e.g. voltage levels, bit streams, code words or symbols over a physical link connecting network nodes or instruments
    • G10H2240/241—Telephone transmission, i.e. using twisted pair telephone lines or any type of telephone network
    • G10H2240/251—Mobile telephone transmission, i.e. transmitting, accessing or controlling music data wirelessly via a wireless or mobile telephone receiver, analog or digital, e.g. DECT GSM, UMTS
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/315—Sound category-dependent sound synthesis processes [Gensound] for musical use; Sound category-specific synthesis-controlling parameters or control means therefor
    • G10H2250/455—Gensound singing voices, i.e. generation of human voices for musical applications, vocal singing sounds or intelligible words at a desired pitch or with desired vocal effects, e.g. by phoneme synthesis
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
    • G10H2250/591—DPCM [delta pulse code modulation]
    • G10H2250/595—ADPCM [adaptive differential pulse code modulation]
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/615—Waveform editing, i.e. setting or modifying parameters for waveform synthesis.

Definitions

  • the present invention relates to a data distribution system and method, a data distribution server, a data distribution program, a music file generation method, and a recording medium. More specifically, a data distribution system that distributes various compressed data such as compressed music data and video data using a network such as the Internet, and a human singing voice that can be distributed by the data distribution system.
  • the present invention relates to a method for generating a music file including BGM (Back Ground Music) and a data structure of the music file.
  • BGM Back Ground Music
  • ringtones were only small enough to repeat extremely monotonous pattern sounds.
  • MDI Music Instrument Digital Interface
  • the present applicant uses the music itself recorded on a CD (Compact Disc) as a ringtone of a mobile phone (a simple melody sound or a mere human sound). Instead of a voice, the melody of a human singing voice and BGM is used as the ringtone itself). In fact, a system that realizes such a service (hereinafter referred to as “chaku-uta system”) is also newly provided.
  • CD Compact Disc
  • chaku-uta system a system that realizes such a service
  • Some recent mobile phones have a playback player as an application.
  • Conventional mobile phones that do not support Java (registered trademark) can only use applications that are already installed.
  • using a mobile phone that supports JaVa allows users to download applications they want to use from the server and delete unnecessary application cases from the mobile phone.
  • the present invention has been made in view of such problems, and enables a user to download and play music data such as music without having to be aware of the mobile phone model and the version of the playback player.
  • the purpose is to provide a simple distribution method.
  • Another object of the present invention is to make it possible to easily change the program of a playback player, upgrade a version, etc., without considering compatibility with past music data.
  • Another object of the present invention is to make it possible to use a tune composed of singing voice and BGM as a ring tone even in a current mobile phone not provided with a large-capacity memory, an MP3 decoder, or the like.
  • a data distribution system is a data distribution system that distributes compressed data from a data distribution server to a requesting terminal.
  • Compression means for compressing data compressed by the compression means compressed data storage means for storing data compressed by the compression means in advance, and reproduction program storage means for storing reproduction programs corresponding to the respective specifications of the terminal in advance.
  • the requesting terminal receives a request for delivery of desired data, The corresponding compressed data is read from the compressed data storage means, and a reproduction program corresponding to the specification of the requesting terminal is read out from the reproduction program storage means, and the compressed data and the reproduction program are read from the requesting source.
  • the data distribution system is a music distribution system that distributes music data obtained by compressing all or a part of music to a requesting terminal from a music distribution server.
  • the transmission means includes an encapsulation means for logically encapsulating the compressed data and the reproduction program into one file.
  • a data distribution method is a data distribution method for distributing compressed data from a data distribution server to a requesting terminal.
  • the data to be distributed is compressed in advance and stored in a recording medium.
  • a reproduction program corresponding to each specification of the above terminal is created in advance and stored in a recording medium, and when a request for distribution of desired data is made from the above requesting terminal, the reproduction program corresponding to the request is transmitted.
  • the compressed data and the reproduction program corresponding to the specification of the requesting terminal are read out and transmitted to the requesting terminal.
  • Another aspect of the present invention is characterized in that the compressed data read from the recording medium and the playback program are logically encapsulated in one file, and the encapsulated file is transmitted.
  • the data distribution server of the present invention is a data distribution server that distributes compressed data to a requesting terminal, wherein the data distribution server stores compressed data to be distributed according to a predetermined method.
  • a reproduction program storage means for storing a reproduction program corresponding to each specification; The corresponding compressed data is read from the data storage means, and a reproduction program corresponding to the specification of the requesting terminal is read from the reproduction program storage means, and the compressed data and the reproduction program are transmitted to the requesting terminal.
  • the transmission means includes an encapsulation means for logically encapsulating the compressed data and the reproduction program into one file.
  • a data distribution program is a program for causing a computer to execute the processing procedure of the data distribution method described in claim 4, or a computer as the transmission means described in claim 6. It is a program to make it work.
  • the music file generation method of the present invention includes: a first step of extracting the singing voice from digital voice data composed of a mixture of singing voice and BGM to obtain a singing voice data in a PCM format; Generating the simulated singing voice data in MIDI format according to the singing voice extracted in the first step above, and adding the simulated singing voice data to the BGM data generated in the second step above.
  • a process of performing band limitation on digital audio data obtained by mixing the singing voice and BGM up to a predetermined frequency band corresponding to the singing voice is performed. It is characterized by.
  • the singing voice data in the PCM format generated in the second step and the singing voice data generated in the third step are included.
  • An adjustment process for synchronizing the playback timing with the input MIDI format BGM + simulated singing voice data is performed.
  • the music file generated in the fourth step includes MIDI playback control information for playing back the MIDI-format BGM generated in the third step + simulated singing data.
  • PCM reproduction control information for reproducing the singing voice data in the PCM format generated in the second step in synchronization with the simulated singing voice data.
  • the computer-readable recording medium of the present invention provides a simulation of a MIDI format generated in accordance with the singing voice of the PCM data, with respect to PCM data comprising singing voice data in the PCM format and BGM data in the MIDI format.
  • the music file includes MIDI playback control information for playing back the MIDI data, and PCM playback control information for playing back the PCM data in synchronization with the MIDI data. And features.
  • the present invention configured as described above, when a user selects and downloads desired compressed data, the user does not need to be aware of the specifications of the terminal and the version of the playback player. This greatly simplifies the download process. Further, according to the present invention, it is possible to easily change the program of the playback player, upgrade the version, and the like without considering compatibility with the past data.
  • the data amount of a music file can be reduced to a level that falls within the limited range of the file capacity for the ringtone of the current mobile phone type, and the quality of the reproduced sound can be reduced. Also above a certain level Can be maintained. As a result, the service of Chaku-Uta can be used even with existing mobile phones that do not have a large capacity memory or MP3 decoder.
  • FIG. 1 is a diagram showing a configuration example of a music distribution system according to the present embodiment.
  • FIG. 2 is a diagram illustrating a configuration example of a music file generation system according to the present embodiment.
  • FIG. 3 is a conceptual diagram showing a data structure of a music file according to the present embodiment.
  • FIG. 4 is a flowchart showing a processing procedure of the music file generation method according to the present embodiment.
  • FIG. 5 is a flowchart showing operations of music distribution and customer registration in the music distribution server according to the present embodiment.
  • FIG. 1 is a diagram showing a configuration example of a music distribution system according to the present embodiment.
  • FIG. 2 is a diagram showing a configuration example of a music file generation system according to the present embodiment.
  • 100 is a music file generation system for generating a music file 15 described later
  • 200 is a reproduction program generation system for generating a music reproduction program (music reproduction player) described later
  • 300 is music.
  • a music distribution server that distributes data (song files 15) is a mobile phone that receives music data in the evening.
  • Music distribution server 300 and mobile phone 400 is connectable to the Internet 500.
  • the music file generation system 100 of this embodiment includes a recording unit 1, a singing voice extraction unit 2, a background music generation unit 3, a MIDI adjustment unit 4, and a file generation unit 5. ing.
  • the recording unit 1 is for recording digital sound source data such as a CD and a DVD (Digital Versatile Disk) on a hard disk or the like of a computer in a WAV format.
  • digital sound source data such as a CD and a DVD (Digital Versatile Disk)
  • a commercially available CD can be set in the CD drive of a personal computer (hereinafter referred to as “PC”) and recorded on the internal hard disk of the personal computer to obtain a digital sound source file in WAV format. .
  • the WAV format is a standard audio file format of Windows (registered trademark), and is also called a WAVE format. It is specified as a storage format for recording digital audio signals. Any compression method can be used. By default, it supports compression methods such as the PCM (no compression) method and the AD PCM (Adaptive Differential Pulse Code Modulation) method.
  • PCM no compression
  • AD PCM Adaptive Differential Pulse Code Modulation
  • the singing voice extraction unit 2 extracts a desired number of bars (for example, the beginning of the song ⁇ the climax portion) from the WAV format digital sound source data 1 1 in which human singing voice and BGM are mixed, and then extracts the BGM. Discard and extract only human singing voice.
  • the digital sound source data 11 in WAV format is converted into singing voice data 12 in AD PCM format in accordance with the playback format implemented in the mobile phone.
  • the digital sound source data 11 sampled at 44.1 kHz corresponds to a predetermined frequency band (4 kHz or 8 kHz) corresponding to a human singing voice. Processing to limit the bandwidth up to Work. That is, the digital sound source data 11 is sampled at regular time intervals corresponding to 4 KHz or 8 KHz.
  • the mere sampling is in PCM format, but here the sound changes continuously, and the data amount is reduced by recording the difference from the immediately preceding sampling data. This is the AD PCM format.
  • the BGM generating unit 3 generates BGM data 13 in the MIDI format.
  • a personal computer is provided with a MIDI sound source, and BGM is generated by DTM (Desk Top Music) using an application program called sequence software installed on the personal computer.
  • the BGM data 13 generated here is the BGM corresponding to the part discarded by the singing voice extraction unit 2.
  • DTM is an example of a method for generating MDI data, and the present invention is not limited to this method.
  • the same original music as a digital sound source such as a CD can be created.
  • the singing voice data 1 2 was generated by greatly limiting the band width of the original digital sound source data 11, and the data volume has been significantly reduced.
  • the data size of BGM 13 is MDI format, the data amount is originally small. Therefore, the amount of data is much smaller than that of data simply cut out from a CD sound source and compressed in the MP3 format.
  • the singing voice data 12 extracted by the singing voice extraction unit 2 has deteriorated, and even if it is reproduced as it is, it can hardly be recognized as a human voice. If the sampling frequency at the time of extraction is increased, the degradation can be suppressed, but the data volume of the singing voice will increase. Therefore, in the present embodiment, the quality of the output singing voice is maintained at a certain level or more while avoiding the increase in the amount of singing voice data 12 by boosting the human singing voice by MIDI data. The method is taken. MI is used for that This is the DI adjustment unit 4.
  • the MIDI adjusting unit 4 In accordance with the pitch, tempo, timbre, volume, etc. of the singing voice extracted by the singing voice extracting unit 2, the MIDI adjusting unit 4 generates simulated singing voice data in the MIDI format that simulates the singing voice. Then, the simulated singing voice data is added to the BGM data to adjust the MDI data.
  • the adjustment of the MDI data is also performed by DTM, for example.
  • the file generation unit 5 stores the singing voice data 12 in the ADPCM format generated by the singing voice extraction unit 2 and the BGM + simulated singing voice data 14 in the MIDI format adjusted by the MIDI adjustment unit 4. Performs processing to process into two music files 15.
  • the music file 15 generated here was written out according to the format unique to the carrier of the mobile phone. For example, in the case of DOCOMO, a music file 15 in the MLD format is generated in accordance with MFI (Melody Format for i-mode: unit mode is a registered trademark). '
  • the singing voice data of the ADPCM and the simulated singing voice data of the MDI be played simultaneously without any delay. Therefore, when generating the music file 15 in the MLD format, an adjustment is made to synchronize the reproduction timing of the singing voice data 12 with the BGM + simulated singing voice data 14. Specifically, binary performance position information (starting and ending positions of performance, sounding time, etc.) defined in the MLD format is combined with singing voice data 12 and background music + simulated singing voice data 14. Set appropriately for both.
  • Each function of the music file generation system 100 Ck;! 5 are actually provided with a computer CPU or MPU, RAM, R ⁇ M, and the like, and can be realized by operating a program stored in the RAM or R ⁇ M.
  • FIG. 3 is a conceptual diagram conceptually showing the data structure of the music file 15.
  • an MLD file has three parts: a file header part that contains the identifier of the file itself, a data information part that contains information about the data of the file, and a track part that contains actual music data.
  • Fig. 3 schematically shows the structure of the track.
  • the music file 15 includes singing voice data 12 in ADPCM format and BGM + simulated singing voice data 14 in MIDI format.
  • the horizontal axis indicates the time direction, and the hatched portions indicate the playback timings of the background music 21, the simulated singing voice 22, and the singing voice 23, respectively.
  • the background music 21 of MIDI flows continuously from the beginning to the end, and the simulated singing voice 22 of MIDI flows at two points in the middle.
  • the image shows that at the same time as the simulated singing voice 22 flows, the singing voice 23 of ADPCM also flows.
  • the BGM + simulated singing voice data 14 in the MIDI format may be generated as separate MIDI data for the BGM 21 portion and the simulated singing voice 22 portion, or may be generated as one piece of MIDI data. Is also good.
  • the performance position information of BGM 21 and the performance position information of simulated singing voice 22 are set separately.
  • BGM 21 and simulated singing voice 22 are defined as chord data. In other words, at the timing when the simulated singing voice 22 does not flow, a chord of only the BGM 21 is generated. Defined.
  • the performance position information is set for the one MIDI data.
  • the performance position information of the singing voice 23 is set so that the singing voice 23 flows simultaneously with the simulated singing voice 22.
  • the music file 15 of the present embodiment includes the MIDI playback control information necessary for reproducing the BGM in the MIDI format + the simulated singing voice data 14 at an appropriate timing and the singing voice data 12 in the AD PCM format.
  • FIG. 4 is a flowchart showing a processing procedure of the music file generation method according to the present embodiment.
  • digital sound source data 11 such as ⁇ 0 ⁇ 13 ⁇ D is recorded in a WAV format on a hard disk of a computer by the recording unit 1 (step S 1).
  • the singing voice extracting unit 2 cuts out a desired portion (the beginning of the music / the rust portion, etc.) from the recorded digital sound source data 11 in the WAV format (step S2).
  • the cut-out portion is not limited to one location, but may be multiple locations. Also, the cut out portions may be connected to be combined into one.
  • the clipping process may be performed according to an instruction from a user using a keyboard, a mouse, or the like, or may be performed automatically by a computer.
  • the computer automatically performs this operation, for example, when cutting out the beginning of a song, it is possible to cut out the corresponding part automatically by specifying the number of measures to be cut out.
  • the rust portion it is possible to predict the rust portion by detecting the start of the back chorus, a change in volume, a change in melody, and the like, and automatically cut out the rust portion.
  • the singing voice extraction unit 2 further performs a process of band-limiting the cut-out digital sound source data 11 up to a predetermined frequency band (4 KHz or 8 KHz) corresponding to the human singing voice. Discard the human singing voice Extract the injuries (step S3). As a result, the singing voice data 1 2 in the AD PCM format is generated.
  • the cutout processing is performed based on an instruction from the user, the order of the processing in step S2 and step S3 may be reversed.
  • the processing corresponds to the part discarded by the singing voice extraction section 2.
  • the background music data 13 to be generated is generated in a MIDI format by, for example, DTM (step S4).
  • Step S5 the expression method is adjusted for each model in Music Markup Language (MML) (step S5).
  • the MIDI adjustment unit 4 generates a simulated singing voice data in the MIDI format that simulates the singing voice extracted by the singing voice extraction unit 2 and adds it to the BGM data to adjust the MIDI data (step S6). .
  • the order of the processes of steps S1 to S3 and the processes of steps S4 to S6 may be reversed.
  • the file generator 5 generates the AD PCM singing voice data 12 generated in steps S 1 to S 3 and the MIDI-format BGM + simulated singing voice data generated in steps S 4 to S 6. 14 is processed into one music file 15 (step S7).
  • the file is written in binary data according to the format of the mobile phone carrier.
  • docomo's MLD format has been described.
  • the music file 15 is generated according to the PMD format, and for J-phone company, the music file 15 is generated according to the SMD format. Multiple carrier music files 15 may be generated for one music.
  • the music distribution server 300 includes a music file acquisition unit 31, a playback program acquisition unit 32, a customer information acquisition unit 33, and a database ( DB) registration section 3, distribution music DB 35, distribution program DB 36, customer DB 37, force cellization section 38, customer information reference section 39, and communication section 40.
  • DB database
  • the music file acquisition unit 31 acquires the music file 15 generated by the music file generation system 100 into the music distribution server 300.
  • the reproduction program acquisition section 32 acquires the music reproduction program (music reproduction player including the decoder) generated by the reproduction program generation system 200 into the music distribution server 300.
  • the music file acquisition unit 31 and the reproduction program acquisition unit 32 specifically transmit the music file 15 and the music reproduction program to the music distribution server 300 via a recording medium such as a CD or a flexible disk.
  • the music file 15 or a music reproduction program is taken into the music distribution server 300 via the Internet 500 or another network (not shown).
  • the music reproduction program is for instructing the performance of BGM 21, simulated singing voice 22, and singing voice 23 according to the performance position information recorded in the music file 15.
  • This is a PCM playback control program that instructs the synthesizer built into the mobile phone to play the singing voice data 12 in ADPCM format, and MIDI playback that instructs the synthesizer to play BGM in the MIDI format + simulated singing voice data 14 Control program.
  • the specifications of applications that can be used on the mobile phone 400 are different for each mobile phone carrier. Therefore, this music playback program is also tailored to the differences in the specifications of each mobile phone carrier.
  • the customer information acquisition unit 330 stores various types of information about the customer (for example, name, user ID, password, carrier of the mobile phone 400 used by the customer, Model, etc.). Specifically, when the user first accesses the music distribution server 300 from the mobile phone 400 via the Internet 500, the user is requested to input information. (For example, by presenting an information input screen) to obtain necessary customer information.
  • information about the customer for example, name, user ID, password, carrier of the mobile phone 400 used by the customer, Model, etc.
  • the DB registering section 34 registers the music file 15 corresponding to various specifications acquired by the music file acquiring section 31 in the distribution music DB 35 as a music data file for a ringing song. Also, the music playback programs corresponding to the various specifications acquired by the playback program acquisition section 32 are registered in the distribution program DB 36. Also, the customer information acquired by the customer information acquisition unit 33 is registered in the customer DB 37.
  • the distribution music DB 35 constitutes a recording medium of the present invention.
  • the encapsulation unit 38 reads the music file 15 corresponding to the carrier and model of the mobile phone 400 used by the user from the distribution music DB 35 in response to the distribution request from the user, and A music playback program corresponding to the carrier and the model of the mobile phone 400 is read from the distribution program DB 36, and these are encapsulated to create a concatenation file.
  • the customer information reference section 39 refers to the customer DB 37 to determine the carrier and model of the cellular phone 400 used by the requesting user. , To the encapsulation unit 38.
  • Encapsulation is a process in which the binary data of the music file 15 and the binary data of the music playback program are combined into a single file, and the generated objects are self-contained and managed in a unified manner.
  • the (registered trademark) class distribution process it is implemented as a mechanism that activates the program when an incoming call arrives.
  • the method of encapsulating the music playback program in the music file 15 is based on a request for music distribution. There are a method of dynamically combining in terms of points, and a method of preparing a static combination in advance by batch processing in advance, and the present embodiment can correspond to both.
  • the file to be distributed can adopt either a method according to the Java file or a method according to the protocol of self-file reproduction by establishing an arbitrary file format.
  • the physical division configuration is not a problem, and it is necessary that the configuration be a logical single file configuration.
  • logical unity it is only necessary that the process of constructing the implementation environment satisfies the completeness in the operability when the user downloads music.
  • the communication unit 40 performs processing related to communication with the mobile phone 400 via the Internet 500. For example, a process of transmitting the customer information sent from the mobile phone 400 to the customer information acquisition unit 33 is performed. Also, it receives the distribution request of the desired music sent from the mobile phone 400 and transmits it to the encapsulation unit 38 and the customer information reference unit 39. In addition, it also performs a process of delivering the concatenation file generated by the encapsulation unit 38 to the requesting mobile phone 400.
  • a memory (not shown) in the mobile phone 400 that stores the music file 15 included in the concatenation file also constitutes the recording medium of the present invention.
  • Each functional block 3 in the music distribution server 300 described above:! ⁇ 34, 38 ⁇ 40 is a microcomputer (microcomputer) configured with a CPU or MPU, R ⁇ M, RAM, etc. The operation is controlled by a control unit (not shown) such as. Further, each of the DBs 35 to 37 is constituted by a recording medium such as a hard disk, for example, and as described above, each of the functional blocks 31 to 34, in the music distribution server 300, When 38 to 40 are configured by microcomputers, their functional configuration can be realized by software. In this case, the functional configuration of the music distribution server 300 can be realized by operating a program stored in RAM or ROM.
  • the present invention can be realized by recording a program that causes a computer to perform the function of each functional block on a recording medium such as a CD-R ⁇ M and reading the program into the computer.
  • a recording medium for recording the above program a flexible disk, a hard disk, a magnetic tape, an optical disk, a magneto-optical disk, a DVD, a nonvolatile memory card, and the like can be used in addition to the CD-ROM.
  • the above program may be downloaded in the evening through a network such as the Internet.
  • FIG. 5 is a flowchart showing the operations of music distribution and customer registration in the music distribution server 300.
  • the control unit (not shown) in the music distribution server 300 determines whether the mobile phone 400 has accessed the communication unit 40 (step S11). Access from mobile phone 400 The control unit further determines whether a password has already been set for the user of the mobile phone 400 (step S12). Here, it is determined whether or not access has been performed with a password input.
  • the control unit prompts the user to input customer information by presenting a predetermined information input screen to the mobile phone 400 using the communication unit 40. Then, the customer information acquisition unit 33 acquires the customer information input in response thereto, and the DB registration unit 34 registers the customer information in the customer DB 37 (step S13). Thereafter, the control unit issues a unique password to the user (step S14).
  • step S15 When it is determined that the password has already been issued to the user in step S12 above (when access is performed with password input) and when a new password is issued in step S14 above Then, the control unit performs an approval process on the password (step S15). If the passcode is incorrect, a warning message is output to that effect and the processing is interrupted.
  • the control unit presents a member-specific sound source menu screen to the mobile phone 400 using the communication unit 40 (step S16). Through this sound source menu screen, the user can request the music distribution server 300 to download a desired music. The control unit determines whether or not there has been a request to distribute the desired music from the mobile phone 400 (step S17), and if not, returns to the process of step S11.
  • the customer information reference unit 39 identifies the carrier and model of the requesting mobile phone 400 by referring to the customer DB 37, and encapsulates it in the encapsulation unit 3. 8 (step S 18).
  • the encapsulation unit 38 corresponds to the carrier and model reported from the customer information reference unit 39
  • the music playback program to be read is read from the distribution program DB 36, and the music file 15 corresponding to the carrier and model reported from the customer information reference section 39 in the music requested by the user is distributed to the music distribution DB 3 Read from step 5 and encapsulate them to create a concatenation file (step S 19).
  • attribute information of the music for example, music title, artist name, etc.
  • music title for example, music title, artist name, etc.
  • the communication unit 40 distributes the concatenation file created by the encapsulation unit 38 to the mobile phone 400 (step S20).
  • the mobile phone 400 that has received the concatenation file executes reproduction of the music file 15 by the music reproduction program included therein.
  • the music distribution server 300 distributes a music data (music file 15) in response to a request from the mobile phone 400. Since the carrier of the mobile phone 400 and the playback player corresponding to the model are encapsulated and distributed together, the user simply selects the desired music and downloads it. A playback player that meets the specifications of the mobile phone 400 can be automatically obtained, and the user does not need to be aware of this. In other words, the user does not need to check the mobile phone model and the version of the playback player each time, and can simplify the operation when downloading music data.
  • a digital sound source such as a CD is separated into a singing voice portion and a BGM portion, and the band of the singing voice portion is largely limited to ADPCM format to reduce the amount of data.
  • the data volume was reduced by generating data in MIDI format.
  • the data amount can be significantly reduced as compared with the conventional method in which a CD sound source or the like is simply cut out and compressed in the MP3 format.
  • the singing voice portion degraded by the band limitation is compensated by the MIDI data, the quality of the reproduced singing voice can be maintained at a predetermined level or more.
  • the Chaku-Uta service can be used even with a current mobile phone type that does not have a large capacity memory or an MP3 decoder.
  • the music file 15 is generated for a ringtone of a mobile phone.
  • the music file 15 of the present embodiment can be applied to a system that needs to reproduce music composed of singing voice and BGM with a small memory capacity.
  • a recording medium for storing the music file 15 a CD-R ⁇ M, a flexible disk, a hard disk, a magnetic tape, an optical disk, a magneto-optical disk, a DVD, a nonvolatile memory card, or the like can be used. Also constitute the recording medium of the present invention.
  • music data is distributed as a ringtone for a mobile phone
  • the present invention is not limited to this.
  • images and moving images can be considered as the data to be distributed.
  • PDA Persona 1 Digital Assistants
  • personal computers power navigation systems, game consoles, television receivers, record stores, convenience stores, etc.
  • An information terminal placed at the storefront is conceivable.
  • the present invention is useful for enabling a user to download and reproduce music data such as music without having to be aware of the model of a mobile phone or the version of a reproduction player.
  • the present invention makes it possible to easily change the program of a playback player, version up, etc. without considering compatibility with past music data. Useful to be able to.
  • the present invention is useful for making a song composed of singing voice and BGM available as a ring tone even in a current mobile phone not provided with a large-capacity memory, an MP3 decoder, and the like.

Abstract

Selon l'invention, chaque fois qu'un fichier de composition musicale est extrait et distribué à partir d'une base de données (DB) de compositions musicales (35) de distribution suivant une demande émanant d'un téléphone mobile (400), un lecteur de reproduction correspondant au téléphone mobile (400) est extrait à partir d'une DB de programmes de distribution (36) de façon à les distribuer ensemble. Ainsi, un utilisateur peut, seulement en choisissant la composition musicale désirée, acquérir automatiquement un lecteur de reproduction correspondant aux spécifications de son téléphone mobile (400) sans en être conscient. Aucune opération complexe n'est requise lors du téléchargement de données musicales.
PCT/JP2003/009195 2002-07-22 2003-07-18 Systeme et procede de distribution de donnees, serveur et programme de distribution de donnees, procede de creation de fichiers de compositions musicales, et support d'enregistrement WO2004010411A1 (fr)

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