CN1953044B - Present and detection system and method of instrument performance based on MIDI file - Google Patents
Present and detection system and method of instrument performance based on MIDI file Download PDFInfo
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Abstract
This invention discloses a instrument play indication and test system and method based on MIDI files, which re-plays music through music MIDI files and then outputs the step or label onto display terminal for real time displaying error position to print into music book. This invention system comprises control module, memory, music book process module, play module, test module and also audio frequency input device, display device, audio output device and outer memory.
Description
Technical field
The present invention relates to a kind of instrument playing prompting and detection system and method based on the MIDI file, can be by MIDI technology real-time follow-up prompting performance progress, and the digital audio and video signals of the digital audio and video signals by relatively playing musical sound and MIDI file playback is with the detection playing effect.
Background technology
Act of music is brought the enjoyment of cultural life as the part of human spirit's civilization all the time for people, mould people's sentiment.And instrument playing also is the importance that people carry out the act of music activity as an important component part of music system.Yet contact greatly the crowd of instrument playing in the society, all belong to the amateur, concerning them, how to utilize the limited time, the hit pay dirk purpose of the melody works of playing out more more complicated of basic playing technique is only most realistic.
Along with development of computer, the electronization of music has produced far-reaching influence to the development of act of music.Especially the generation of MIDI technology and development brought huge variation for the traditional music technology.
MIDI is the standard that music signal transmits between electronic sound equipment, is exactly the standard language that musical instrument and computing machine use specifically, is a cover instruction; Its indication musical instrument is MIDI equipment musical notes, strengthens volume, generates acoustics etc.What MIDI transmitted is not voice signal, but issues the command signal that MIDI equipment or other device allow its produce sound or carry out certain action.Therefore the music file of midi format is the whole music score of recording musical and the overall process of performance.By source of sound and sequencer, the music file of midi format can play back again with the synthetic mode of electronics.And, since file logging be instruction information, so can be easy to edit melody and the reproduction music score.
Concerning non-professional player, will not be willing to learn by heart complicated tediously long music score.At the popular these days of Karaoke,, instrument playing fan's a great problem will be solved if instrument playing also can be made the form of Karaoke.
On the other hand with sing different, what instrument playing was pursued is as far as possible near former song, and notice that the playing effect of oneself is very difficult when as the player, will concentrate on playing, should be a good solution if can allow equipment estimate playing effect.
Summary of the invention
Fundamental purpose of the present invention provides a kind of instrument playing prompting and detection system based on the MIDI file, and major function is: one, by the MIDI file reproduction performance music score of need playing music and according to behind the rolling of performance progress and painted or the mark music score being outputed to display terminal; Two, show the position of makeing mistakes in the performance in the playing procedure in real time; Three, finish the back at a song and print whole Qu Lepu (the process error flag).
Another object of the present invention provides a kind of instrument playing prompting and detection method based on the MIDI file.
The technical scheme that realization foregoing invention purpose one is adopted is as follows: a kind of instrument playing prompting and detection system based on the MIDI file, and mainly comprise: module, playing module, detection module, voice input device, display device, audio output device and external memory storage made in control module, storer, music score captions;
Above-mentioned control module is the main control equipment of native system, it is responsible for receiving and handling the operation signal of upper level, according to result module, playing module and detection module made in above-mentioned storer, music score captions and send corresponding control signal, in whole workflow, be responsible for the orchestration work of each equipment simultaneously;
Above-mentioned storer is used for storing the melody associated documents: the audio-video document of accompaniment, MIDI file, the music score captions that the progress chasing function is arranged, text music score captions, music score text subtitle copy;
The storage condition of module according to melody associated documents in the fixed sturcture of MIDI file and the storer made in above-mentioned music score captions, generates text music score captions, text music score captions copy, follows the tracks of the single or all files in the music score captions;
Above-mentioned playing module mainly comprises accompaniment playing module and captions playing module;
Above-mentioned detection module mainly comprises: detection and mark module, MIDI playback reproducer, A → D converting means.
The demonstration rule of music-book information mainly is in the described tracking music score subtitle file: one, according to the specification of display terminal, stipulate the length that the every row of music score text shows; Two, screen shows the two spectrum texts of making merry simultaneously, wherein, and when following the tracks of progress, after dyeing finishes first trip music score text, the this journey text will conceal, and simultaneously the second spectrum text of making merry rises to first trip music score text, and next line music score text following closely will be read into and show second position of making merry spectrum; So circulation finishes up to melody.
The fixed sturcture of module according to the MIDI file made in the music score captions, reappear the performance sequence and the playing effect mark of the note signal that writes down in the MIDI file, and become text subtitle according to the format conversion of general music score, and be written in the storer, be above-mentioned text music score captions; If text music score captions exist and text music score captions copy does not exist, so text music score captions are duplicated portion, be above-mentioned text music score captions copy, be used to carry out error flag and output when melody finishes; By the calendar scheduling method, analyze each voicing phonemes time of writing down in the MIDI file, progress is accurately located and shown on the music score captions in modes such as real-time dyeing or marks, realize the function of progress chasing, and have this music score subtitle file of progress chasing effect to be written to storer, be above-mentioned tracking music score captions.
Above-mentioned playing module is after control module is sent the beginning play signal, if there is the accompaniment tone video file in melody, the accompaniment playing module will read the accompaniment tone video file from storer, and wherein audio frequency, video data are outputed to audio output device and display device respectively; The captions playing module will read from storer and follow the tracks of the music score subtitle file simultaneously, output to display device with certain rule; Play end when melody, according to the signal of playing end, control module is sent instruction to the captions playing module, requires it to read the text music score captions copy of process mark in the storer, outputs to display device.
The course of work of described detection module is: the sound wave that player's instrument playing sends is imported by voice input device (as microphone), the simulated audio signal of input arrives A → D converting means, and A → D converting means is converted to digital audio and video signals with simulated audio signal; Simultaneously, the MIDI file that the MIDI playback reproducer reads in from storer, playback reproducer becomes digital audio and video signals with the musical recording playback of MIDI file; Relatively reach mark module above-mentioned two piece of digital audio signal streams are compared,, determine whether mistake takes place by certain rule; If determine wrong the generation, to the music score captions in display device output, relatively reaching mark module will carry out mark in the above-mentioned wrong position that takes place; If determine wrong the generation, relatively reaching mark module will rewrite storer Chinese version music score captions copy, and the mark of errors present is written in the text music score captions copy.
The technical scheme that realization goal of the invention two is adopted is as follows: a kind of instrument playing prompting and detection method based on the MIDI file is characterized in that the inventive method may further comprise the steps:
A. according to the note signal of MIDI files specify, the corresponding relation of control signal restores general music score (staff, numbered musical notation etc.), simultaneously according to the phonation time of the phoneme that writes down, makes the tracking progress effect of captions with the effect of dyeing or mark;
B. after the user sends the instruction that strikes up, export the music score file that tracking progress effect is arranged, to reach the effect that prompting is played with certain rule;
C. by voice input devices such as microphones, obtain the player and play the sound signal sent and the simulated audio signal of catching is converted to digital signal;
D. after receiving the signal that strikes up, the MIDI file of former melody is carried out playback, draw digital audio and video signals;
E. compare two segment signals by certain rule;
F. music score being carried out error flag also is presented in another music score file copy that records storer on the terminal simultaneously in real time;
G. play and finish the back at the music score file copy of display terminal output through error flag.
The invention has the beneficial effects as follows: to the melody of many instrument playings, as long as have the MIDI file of the musical instrument that the player need play, just can produce the performance music score captions of progress chasing prompting effect automatically, if the MIDI file of all the other musical instruments or ready-made accompaniment music file are arranged, can with music score captions synchronous playing, make the player can enjoy the effect that many people instrumental ensemble.Allow the player can find in playing procedure that thereby the performance error of oneself adjusts in real time.After playing end, further understand and play the particular location of slipping up so that can note avoiding making a mistake in the performance next time.
The present invention popularizes easily, and cost is low.Because Karaoke to be having popularized a very long time in people life, people are similar to the performance hint system of Karaoke to this kind can be more acceptant.And detection system can be seen a kind of tutoring system as, and is remarkable to the self promotion effect of player's performance level.In addition because structure of the present invention and uncomplicated, and some functional modules of wherein using are similar with family existing multimedia device, install so can be applied in the digital TV set-top box, multi-media player etc. of family easily.
Description of drawings
Fig. 1 is an one-piece construction block diagram of system of the present invention;
Fig. 2 be the music score captions make module in system with the physical relationship synoptic diagram of other each functional part;
Fig. 3 be the structure of playing module and in system with the physical relationship synoptic diagram of other each functional part;
Fig. 4 be the structure of detection module and in system with the physical relationship synoptic diagram of other each functional part;
Fig. 5 is a major control process flow diagram of the present invention;
The main schematic flow sheet of Fig. 6 for playing about melody among the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the one-piece construction block diagram of a specific embodiment of system of the present invention.By shown in Figure 1, native system mainly comprises: module 12, playing module 13 and detection module 14 made in control module 10, storer 11, music score captions.In addition, also comprise voice input device 15, display device 16, audio output device 17 and external memory storage 18;
Above-mentioned storer 11 is to be used for the storage medium of the melody associated documents stored in the implementation.The melody associated documents mainly comprise 5 parts: the audio-video document 111 of accompaniment, MIDI file 112, the music score captions 113 that the progress chasing function is arranged, text music score captions 114, text music score captions copy 115.Wherein MIDI file 112 is a required file, and the audio-video document 111 of accompaniment is nonessential file.Though it is necessary files of this implementation that music score is followed the tracks of subtitle file 113, music score text subtitle file 114 and music score text subtitle wave file 115, owing to can generate in the method, so also belong to nonessential file.
Above-mentioned control module 10 is the main control equipment of this implementation, and it is responsible for receiving and handling the operation signal of upper level, according to result module 12, playing module 13 and detection module 14 is made in above-mentioned storer 11, music score captions and sends corresponding control signal; In whole workflow, be responsible for the orchestration work of each equipment simultaneously.
According to control flow (referring to Fig. 5) step S1, after control module 10 starts,, be responsible for nearly all control operation in control flow and the playing flow (referring to Fig. 6) until finish.
Its main operation of carrying out has:
A. control module 10 can respond the instruction of being sent by user or upper level control assembly, comprises startup, finishes, and plays, and stops to play etc.
B. the music data in 10 pairs of storeies 11 of control module detects, and judges the music data whether this music data requires.If not, storer 11 is sent the operation signal that reads and writes data from exterior storage medium.See control flow (referring to Fig. 5) step S5, S6.
C. the music data in the storer 11 is detected, judge whether this music data is complete.According to above-mentioned testing result, module 12 made in the music score captions send work order the music data integrality.See control flow step S7, S8.
D. in control flow and playing flow, in needs, storer 11 is sent control signal, make it make module 12, playing module 13 and detection module 14 and carry out data read-write operation, to satisfy the requirement that reads and writes data of the said equipment to the music score captions.
E. the music data coupling requires the file of melody and needs complete in play command and the storer 11 when the user sends, and control module 10 is sent instruction, and playing module 13 and detection module 14 are placed ready state.See the P1 step of playing flow (referring to Fig. 6).Send detection signal,, determine that each equipment that relates in the playing process is all ready by feedback information.See the P2 step of playing flow.
F. under the prerequisite of confirming each device ready, the MIDI playback apparatus 142 of the accompaniment playing module 131 of 10 pairs of playing modules 13 of control module, captions playing module 132 and detection module 14, detection and mark module 141 carry out synchronous operation.See the P4 step of playing flow (referring to Fig. 6).
G. carry out under the synchronous prerequisite of work at the MIDI playback apparatus 142 of guaranteeing the accompaniment playing module 131 of playing module 13, captions playing module 132 and detection module 14, detection and mark module 141, control module 10 pairs of above-mentioned accompaniment playing modules 131, captions playing module 132 and MIDI playback apparatus 142 send the beginning play instruction; Detection and mark module 141 and A → D conversion module 143 send the instruction of starting working in 10 pairs of detection modules 14 of control module simultaneously.See P5, P6, P7 step in the playing flow (referring to Fig. 6).
H. after receiving the signal that melody finishes, to the captions playing module send from read and output storage 11 through the instruction of the text music score captions copy 115 of mark.See playing flow (referring to Fig. 6) step P9, P10.
I. after receiving the signal that withdraws from, the text music score captions copy 115 in 10 pairs of storeies 11 of control module is carried out deletion actions, and each submodule of playing module 13, detection module 14 and subordinate thereof is sent out-of-work instruction.See playing flow (referring to Fig. 6) P12, P13.
J. if receive the signal that stops to play that the user sends in playing process after, 10 pairs of each functional modules of control module are sent the break-off signal, and carry out and above-mentionedly receiving the corresponding operating that is carried out behind the signal that withdraws from.See playing flow (referring to Fig. 6) P8, P12, P13.
Fig. 2 is that the working environment of module 12 in total system and and 11 of control modules 10, storer mainly operation associated made in the music score captions in the implementation of the present invention.According to control flow (referring to Fig. 5) step S7, if music data does not comprise music score tracking subtitle file 113 and music score text subtitle file 114 in the storer 11, then forward step S8 to, controller 10 sends instruction, and starting this module is that module 12 made in above-mentioned music score captions.
The main operation that this module is carried out has:
A. according to the fixed sturcture of MIDI file, reappear the performance sequence and the playing effect mark of the note signal of record in the MIDI file 112, and become text subtitle, be written in the storer 11, be above-mentioned text music score captions 114 according to the format conversion of general music score.
B. if text music score captions 114 exist and text music score captions copy 115 does not exist,, be above-mentioned text music score captions copy 115, be used to carry out error flag and output when melody finishes so text music score captions 114 are duplicated portion.
C. by the calendar scheduling method, analyze each voicing phonemes time of writing down in the MIDI file, progress is accurately located and shown on the music score captions in modes such as real-time dyeing or marks, realize the function of progress chasing, and have this music score subtitle file of progress chasing effect to be written to storer 11, be above-mentioned tracking music score captions 113.
D. finish the music score captions and make the work of module 12, control flow forwards step S9 to.
Fig. 3 is the detailed structure of playing module 13 in the implementation of the present invention, the working environment in whole realization proposal and and control module 10,11 of storeies, audio output device 17, display device 16 mainly operation associated.Playing module 13 mainly comprises: accompaniment playing module 131, captions playing module 132.
The main operation that this module is carried out has:
A. according to playing flow (referring to Fig. 6) P1, control module 10 places ready state with this module 13.
B. after control module 10 is sent the beginning play signal, if there is accompaniment tone video file 112 in melody, accompaniment playing module 131 will read accompaniment tone video file 112 from storer 11, and wherein audio frequency, video data are outputed to audio output apparatus and display device respectively; Captions playing module 132 will read from storer 11 and follow the tracks of music score subtitle file 113 simultaneously, with certain rule
1.Output to display device.See playing flow step P5, P6.
C. work as melody and play end, according to playing the signal that finishes, 10 pairs of captions playing modules 131 of control module send instruction, require it to read the text music score captions copy 115 of process mark in the storer 11, output to display device.See playing flow step P9, P10.The demonstration rule of wherein following the tracks of music-book information in the music score subtitle file 113 mainly is: one, according to the specification of display terminal, stipulate the length that the every row of music score text shows; Two, screen shows the two spectrum texts of making merry simultaneously, wherein, and when following the tracks of progress, after dyeing finishes first trip music score text, the this journey text will conceal, and simultaneously the second spectrum text of making merry rises to first trip music score text, and next line music score text following closely will be read into and show second position of making merry spectrum.So circulation finishes up to melody.
Fig. 4 is the detailed structure of detection module 14 in the inventive method, the working environment in total system and mainly operation associated with control module 10, storer 11, audio input device, display device.Detection module 14 mainly comprises: detection and mark module 141, MIDI playback reproducer 142, A → D converting means 143.
The main operation that this module is carried out has:
A. according to playing flow (referring to figure six) P1, control module 10 places ready state with this module 14.
B. send the beginning play signal according to control module 10, this module is started working.See playing flow step P7.
C. the sound wave that sends of player's instrument playing is by audio input device (as microphone), and the simulated audio signal of input arrives A → D conversion equipment 143, and A → D conversion equipment 143 is converted to digital audio and video signals with simulated audio signal.
D. simultaneously, the MIDI file 112 that MIDI playback apparatus 142 reads in from storer 11, playback apparatus becomes digital audio and video signals with the musical recording playback of MIDI file.
E. relatively reach 141 pairs of above-mentioned two piece of digital audio signal streams of mark module and compare,, determine whether mistake takes place by certain rule.
F. if determine wrong the generation, to the music score captions in display device output, relatively reaching mark module 141 will carry out mark in the above-mentioned wrong position that takes place.
G. if determine wrong the generation, relatively reaching mark module 141 will rewrite storer 11 Chinese version music score captions copies 115, and the mark of errors present is written in the text music score captions copy 115.
As shown in Figure 5, the control flow of native system is as follows:
S1. control module 10 and storer 11 are placed duty.
S2. control module 10 is waited for the steering order of upper level.
S3. if, forwarding S9 to for withdrawing from, instruction finishes; Then forward S4 if not to.
S4. if instruction is a certain song of broadcast, control module 10 is sent check data to storer, forwards S5 to; Then return the instruction that continues to wait for upper level if not, forward S2 to.
S5. if the existing data of storer then forward S7 to requiring the song coupling; Then forward S6 if not to.
S6. be because melody is not the requirement melody in the storer 11 owing to not matching, 10 pairs of storeies 11 of control module send from the instruction of a certain equipment read-write specific data.Reading finishes forwards S7 to.
S7. detect the music score captions and whether exist,, then forward S8 if not to if then forward S9 to.
S8. if melody is not made the music score captions in the storer 11, control module 10 starts the music score captions and makes module 12 and send the instruction of making the music score captions; If made the music score captions in the storer 11 but lack text music score captions copy 115, then text music score captions 114 are duplicated portion.Forward S6 to.
S9. control module 10 issues instructions to playing module 13, enters playing flow (referring to figure six).
S10. control module 10 is sent the instruction that quits work to all the other service parts after withdrawing from playing flow, forwards S2 to.
As shown in Figure 6, the playing flow of native system is:
P1. according to the instruction (melody in the playout storage) of control module 10, require playing module 13, detection module 14 to enter duty.
P2. control module 10 is sent detection signal, and whether detect playing module 13, detection module 14 and input-output device ready.
P3. if each working equipment is ready, enter step P4; Then forward step P2 if not to.
P4. working time of synchronous playing module 13 and detection module 14, be specifically related to detect in accompaniment playing module 131 in the above-mentioned playing module 13, captions playing module 132 and the above-mentioned detection module 14 and mark module 141, MIDI playback apparatus 142 these four operational modules synchronously.
P5, P6, the step of P7 for carrying out synchronously.
P5. the playing module 131 of accompanying is exported.Audio stream in the accompaniment file is carried out audio accompaniment output by audio output apparatus; Video flowing in the accompaniment file is carried out video output by display device.
P6. by captions playing module 132, the tracking music score captions 113 in the storer 11 are play, outputed to display device.
P7. with the testing result real-time mark of detection module 14 in the music score captions of output; Simultaneously the text music score captions copy 115 in the storer is carried out write operation, the result is kept in this document with mark.
P8. if in the playing process, control module 10 does not have the instruction that stops to play that receives from the user, enters step P9 after playing end; If the user has sent the instruction that stops to play in playing process, control module 10 is suspended the work of each equipment, and flow process forwards P12 to.
P9. melody is play and is finished, and control module 10 is sent silence signal to accompaniment playing module 131 and detection module 14, sends instruction to captions playing module 132 simultaneously, requires it to read the text music score captions copy 115 of process mark in the storer 11.
P10. by captions playing module 132 with text music score captions copy 115, output to display device by certain rule.
P11. wait for that the user imports, then enter step P11 if withdraw from signal, resumes step P9 then repeats to export text music score captions copy 115 if not.
P12. delete the text music score captions copy 115 that has passed through mark in the storer 11.
P13. playing flow finishes, and control module 10 is sent the work that instruction stops playing module 13, returns control flow.
Claims (6)
1. instrument playing prompting and detection system based on a MIDI file is characterized in that native system mainly comprises: control module (10), storer (11), music score captions making module (12), playing module (13), detection module (14), voice input device (15), display device (16), audio output device (17) and external memory storage (18);
Above-mentioned control module (10) is the main control equipment of native system, it is responsible for receiving and handling the operation signal of upper level, according to result module (12), playing module (13) and detection module (14) made in above-mentioned storer (11), music score captions and send corresponding control signal, in whole workflow, be responsible for the orchestration work of each equipment simultaneously;
Above-mentioned storer (11) is used for storing the melody associated documents: the audio-video document of accompaniment (111), MIDI file (112), the music score captions (113) that the progress chasing function is arranged, text music score captions (114), music score text subtitle copy (115);
Above-mentioned music score captions are made module (12) according to the fixed sturcture of MIDI file and the storage condition of the middle melody associated documents of storer (11), generate text music score captions (114), text music score captions copies (115), follow the tracks of the single or all files in the music score captions (113);
Above-mentioned playing module (13) mainly comprises accompaniment playing module (131) and captions playing module (132);
Above-mentioned detection module (14) mainly comprises: detection and mark module (141), MIDI playback apparatus (142), A → D converting means (143).
2. instrument playing prompting according to claim 1 and detection system is characterized in that the demonstration rule of music-book information in the described tracking music score subtitle file (113) mainly is: one, according to the specification of display terminal, stipulate the length that the every row of music score text shows; Two, screen shows the two spectrum texts of making merry simultaneously, wherein, during the tracking progress, after dyeing finishes first trip music score text, the this journey text will conceal, simultaneously the second spectrum text of making merry rises to first trip music score text, and next line music score text following closely will be read into and show second position of making merry spectrum, and so circulation finishes up to melody.
3. instrument playing prompting according to claim 1 and detection system, it is characterized in that the fixed sturcture of music score captions making modules (12) according to the MIDI file, reappear the performance sequence and the playing effect mark of the note signal of record in the MIDI file (112), and become text subtitle according to the format conversion of general music score, be written in the storer (11), be above-mentioned text music score captions (114);
When text music score captions (114) exist and text music score captions copies (115) do not exist, text music score captions (114) are duplicated portion, be above-mentioned text music score captions copies (115), be used to carry out error flag and when melody finishes, export;
By the calendar scheduling method, analyze each voicing phonemes time of writing down in the MIDI file, progress is accurately located and shown on the music score captions in modes such as real-time dyeing or marks, realize the function of progress chasing, and have this music score subtitle file of progress chasing effect to be written to storer (11), be above-mentioned tracking music score captions (113).
4. instrument playing prompting according to claim 1 and detection system, it is characterized in that above-mentioned playing module (13) is after control module (10) is sent the beginning play signal, when there is accompaniment tone video file (112) in melody, accompaniment playing module (131) will read accompaniment tone video file (112) from storer (11), and wherein audio frequency, video data are outputed to audio output device (17) and display device (16) respectively; Captions playing modules (132) will read from storer (11) and follow the tracks of music score subtitle file (113) simultaneously, output to display device (16) with certain rule;
Play end when melody, according to the signal of playing end, control module (10) is sent instruction to captions playing module (131), requires it to read the middle text music score captions copies (115) through mark of storer (11), outputs to display device (16).
5. instrument playing prompting according to claim 1 and detection system, the course of work that it is characterized in that described detection module (14) is: the sound wave that player's instrument playing sends is imported by voice input device (15) (as microphone), the simulated audio signal of input arrives A → D converting means (143), and A → D converting means (143) is converted to digital audio and video signals with simulated audio signal;
Simultaneously, the MIDI file (112) that MIDI playback reproducer (142) reads in from storer (11), playback reproducer becomes digital audio and video signals with the musical recording playback of MIDI file;
Relatively reach mark module (141) above-mentioned two piece of digital audio signal streams are compared,, determine whether mistake takes place by certain rule;
When determining wrong the generation, to the music score captions in display device output, relatively reaching mark module (141) will carry out mark in the above-mentioned wrong position that takes place;
When determining wrong the generation, relatively reaching mark module (141) will rewrite storer (11) Chinese version music score captions copies (115), and the mark of errors present is written in the text music score captions copies (115).
6. the instrument playing based on the MIDI file is pointed out and detection method, it is characterized in that the inventive method may further comprise the steps:
A. according to the note signal of MIDI files specify, the corresponding relation of control signal restores general music score (staff, numbered musical notation etc.), simultaneously according to the phonation time of the phoneme that writes down, makes the tracking progress effect of captions with the effect of dyeing or mark;
B. after the user sends the instruction that strikes up, export the music score file that tracking progress effect is arranged, to reach the effect that prompting is played with certain rule;
C. by voice input devices such as microphones, obtain the player and play the sound signal sent and the simulated audio signal of catching is converted to digital signal;
D. after receiving the signal that strikes up, the MIDI file of former melody is carried out playback, draw digital audio and video signals;
E. compare two segment signals by certain rule;
F. music score being carried out error flag also is presented in another music score file copy that records storer on the terminal simultaneously in real time;
G. play and finish the back at the music score file copy of display terminal output through error flag.
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| CN2006101224310A CN1953044B (en) | 2006-09-26 | 2006-09-26 | Present and detection system and method of instrument performance based on MIDI file |
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| CN2006101224310A CN1953044B (en) | 2006-09-26 | 2006-09-26 | Present and detection system and method of instrument performance based on MIDI file |
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| CN1953044B true CN1953044B (en) | 2011-04-27 |
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| CN2006101224310A Expired - Fee Related CN1953044B (en) | 2006-09-26 | 2006-09-26 | Present and detection system and method of instrument performance based on MIDI file |
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| CN109313861A (en) * | 2016-07-13 | 2019-02-05 | 雅马哈株式会社 | Musical instrument exercise system, playing practice implementing device, contents reproduction system and content reproduction device |
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| CN108899004B (en) * | 2018-07-20 | 2021-10-08 | 广州市雅迪数码科技有限公司 | Method and device for synchronizing and scoring staff notes and MIDI file notes |
| CN109192185B (en) * | 2018-08-20 | 2023-10-20 | 咪咕数字传媒有限公司 | Music score processing method and device and computer readable storage medium |
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| CN110111761B (en) * | 2019-03-28 | 2022-03-11 | 深圳市芒果未来科技有限公司 | Method for real-time following musical performance and related product |
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| EP1449184A1 (en) * | 2001-10-20 | 2004-08-25 | Hal C. Salter | An interactive game providing instruction in musical notation and in learning an instrument |
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| CN109313861B (en) * | 2016-07-13 | 2021-07-16 | 雅马哈株式会社 | Musical instrument practice system, performance practice implementation device, content playback system, and content playback device |
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