CN103150940A - Teaching system and teaching method of keyboard type musical instrument - Google Patents
Teaching system and teaching method of keyboard type musical instrument Download PDFInfo
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- CN103150940A CN103150940A CN2013100867093A CN201310086709A CN103150940A CN 103150940 A CN103150940 A CN 103150940A CN 2013100867093 A CN2013100867093 A CN 2013100867093A CN 201310086709 A CN201310086709 A CN 201310086709A CN 103150940 A CN103150940 A CN 103150940A
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Abstract
The invention provides a teaching system and a teaching method of a keyboard type musical instrument. The teaching system is characterized by comprising an information collection unit, a signal processing unit and an information output unit; the teaching system has various working modes, and the various working modes comprise an optimal fingering prompting mode, a fingering correcting mode, an evaluating mode and a teaching mode; and the various working modes can be selected by a user and have the functions of fingering prompting, fingering correcting, evaluating, demonstrating and teaching. The teaching system provided by the invention is widely applied to various keyboard type musical instruments comprising a piano, an electronic organ, an accordion, a pipe organ and the like; and the teaching system has a strong teaching function, the using method is simple and flexible, and the teaching system has a very extensive application prospect.
Description
Technical field
The present invention relates to the musical instrument teach technique, be specifically related to a kind of keyboard instrument teaching system and teaching method.
Background technology
Musical instrument is liked by numerous people is popular, but for new hand, musical instrument is played training spended time length and somewhat expensive; For the teacher, traditional teaching pattern inefficiency that seems, therefore the exploitation of intelligent teaching system is necessary.US Patent No. 20120064498A1 has reported a kind of based on computer implemented interactively musical instrument teaching system, it is comprised of musical instrument, interface, computing machine, the musical instrument the inside needs to embed the visual cues device, computing machine provides the control signal of teaching by software receiving interface signal the time, control the visual cues device of musical instrument the inside, be the visual signal prompt of user's performance hint, to reach the function of teaching.But the musical instrument teaching system that this invention relates to need to add the visual cues device, such as for guitar, need to increase corresponding visual cues device at each root string of guitar, therefore in order to realize that interactively teaching need to transform musical instrument itself, can't apply to widely in existing musical instrument.
US Patent No. 2005005761A1 has reported a kind of system of teaching music, it has realized the visual indication that musical instrument is played, but in the process that realizes, pilot lamp is positioned near the place musical instrument, shown in Figure 1 as the Figure of description of patent, pilot lamp is positioned at the top of keys of musical instrument.Because the indicator signal of vision is not presented on the button of musical instrument exactly, playing needs artificially signal designation and corresponding button are carried out corresponding in process, increased player's learning difficulty.In addition, such realization also needs a large amount of pilot lamp to be embedded into the musical instrument surface, is difficult to apply to widely in existing musical instrument.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of keyboard instrument teaching system and teaching method are provided.
The present invention adopts following technical scheme to realize:
A kind of keyboard instrument teaching system is characterized in that: described system comprises information acquisition unit, signal processing unit and information output unit.
The fingering when basic functional principle of system of the present invention is information acquisition unit collection user shoegaze and user's operational order, the information that the signal processing unit processes information acquisition unit collects, information output unit receives the signal that signal processing unit sends, thereby exports corresponding information.
Described information acquisition unit is used for gathering external information, and the information that collects is sent to signal processing unit with aspect.Described external information comprises music information, the volume coordinate information of human body, pressure information, acoustic information.
The volume coordinate information of described human body is the volume coordinate of human body.Described volume coordinate is the planimetric coordinates (x, y) of the spatial coordinate (x, y, z) of 3D or 2D, and described human body refers to play the human organ of keyboard instrument, comprises finger, toe etc.This information both can be used for analyzing fingering can also be as user's space instruction; For example, the people sees projection device interface, space out, system by the identification human body in the position at interface, space, thereby obtain command information; For example, the people sees the interface of projection device to the wall has a button on the interface, and the finger point gets on, and system identification is positioned on this button to finger, system for this button corresponding operation make corresponding behavior.
The pressure information of described collection is the dynamics size of user's button.
Described acoustic information is user's phonetic order; For example, the people sounds, and tells system to switch to certain mode of operation, and system identification people's sound, switch to corresponding mode of operation so;
Described signal processing unit is used for receiving the signal that information acquisition unit sends, and processes, and the signal after processing is sent to signal output unit;
Described information output unit is used for receiving the signal that signal processing unit sends, and signal is converted to corresponding information.Described information comprises visual information, pressure information, acoustic information.
The visual information of described prompting is the picture cues information of system; The picture cues information of described system comprises that projection goes out space community's face and direct projection goes out indication information to key.For example, projection goes out space community's face to wall, demonstrates fingering on the interface, space and points out the interface, estimates the interface, the interface that reports an error, operation interface etc.For example projection go out different colours laser to key, the prompting fingering.
The acoustic information of described prompting is the information of voice prompt of system; The information of voice prompt of described system comprises the duty of current system and to user's evaluation.For example, in the time of user's shoegaze, the human body servicing unit is sounded, and the current volume size is described, the duties such as mode of operation; After the user had played, the human body servicing unit was sounded, and estimated the user and played the height of level.
The pressure information of described prompting is the pressure that the human body servicing unit feeds back to human body; For example, when the user presses wrong button or button and points out fingering inconsistent, human body is applied an acting force, hinder user's button, the user knows that button is wrong.
Described keyboard instrument is to have key and each key of stationary arrangement order that the fixedly musical instrument of pitch is arranged.
Described keyboard instrument comprises piano, pipe organ, accordion or mellotron.
Described information acquisition unit can comprise following three kinds of building forms:
(1) music harvester and image collecting device;
(2) music harvester and human body servicing unit;
(3) music harvester, image collecting device and human body servicing unit.
Described information output unit can comprise following two kinds of building forms:
(1) projection arrangement;
(2) projection arrangement and human body servicing unit.
Described music harvester is used for gathering music information, the music information that collects is converted to signal, and this signal is sent to signal processing unit;
Described music harvester is to gather music information, and the music information that collects is converted to signal, and this signal is sent to the device of signal processing unit; Described music harvester possesses camera function, sound-recording function, scan function, and communication function includes but not limited to desktop computer, notebook computer or mobile intelligent terminal.
The equipment that possesses camera function can be Digital Video, digital camera; Having sound-recording function equipment can be recording pen, microphone; Equipment with scan function can be scanner, scanner; Equipment with communication function can be wireless aps, wireless bridge, wireless network card, antenna.
Described music information includes but not limited to that papery music score, electronic music etc. can be by the information of visual identity, real-time music, voice, live concerts, TV programme recording etc. can be by the information of Auditory identification, and MIDI, MP3, WAV etc. can be by the standard audio format files of signal processing unit.
Described image collecting device is used for human body image information is converted to signal, and sends to signal processing unit, includes but not limited to have desktop computer, notebook computer or the mobile intelligent terminal of image collecting function.
Described human body servicing unit can gather as required volume coordinate information, pressure information, the acoustic information of human body and above-mentioned information is converted to signal and send to signal processing unit; Can also receive the signal that signal processing unit sends and acoustic information, the pressure information that is converted into feedback.
Described human body servicing unit can inclusion information acquisition module and/or message output module.When the human body servicing unit belongs to information acquisition unit, human body servicing unit inclusion information acquisition module; When the human body servicing unit belongs to information output unit, human body servicing unit inclusion information output module; When the human body servicing unit had not only belonged to information acquisition unit but also had belonged to information output unit, human body servicing unit inclusion information acquisition module and message output module.
Described information acquisition module is physical message can be converted to the module of signal, includes but not limited to gyro sensor, pressure transducer, sound transducer etc.; Described message output module is to be converted to signal the module of physical message, includes but not limited to sound generator and pressure generator etc.Described gyro sensor is the volume coordinate information of human body to be converted to the device of electric signal; Described pressure transducer is pressure information to be converted to the device of electric signal; Described sound transducer is acoustic information to be converted to the device of electric signal; Described tactile generator is electric signal to be converted to the device of pressure; Sound generator is electric signal to be converted to the device of acoustic information.
Described human body servicing unit pattern can be shell-like thing (as gloves, footmuff, headgear etc.), pad (as touch pads, wrist pad etc.), forms seal ring or half seal ring ribbon (as hand strap, tape, waistband, wrist strap etc.), can be affixed on the paster of skin surface etc.
For example, the ghost gloves can gather the pressure information of human hands and ancon, and can feed back to the corresponding pressure of people.
Piano gloves (Piano Hands) have sounding effect, have on it and knock on any plane, and hand can play back this sound that converts piano to that knocks.
Described projection arrangement is used for receiving the signal of signal processing unit transmission and being converted into visual information.
Described projection arrangement is a kind of a kind of device that electric signal can be converted to the visual information that projects.Described visual information can be 2D visual information, 3D visual information or laser.Described projection arrangement comprises laser, DLP projector, 3D projector, 2D projector, at least one desktop computer, notebook computer or the mobile intelligent terminal with projecting function.The described mobile intelligent terminal intelligent terminal that is of portable form includes but not limited to various smart mobile phones, panel computer (as iPad etc.), palm PC, intelligent handheld device.
Described signal processing unit is used for receiving the signal that information acquisition unit sends, and processes, and the signal after processing is sent to signal output unit;
Described signal processing unit be can calculate, analyze, storage, signal is processed and signal sends equipment, described signal processing unit includes but not limited to computing machine, server, mobile intelligent terminal.
Described mobile intelligent terminal is to gather external information, can calculate, analyze and process, and can carry out the portable set of communication between different terminals, include but not limited to smart mobile phone, PDA, notebook computer, net book, panel computer, palm PC, intelligent handheld device, Pocket PC, Tablet PC.
System of the present invention can provide multiple-working mode, comprises the optimum fingering pattern of prompting, revises the fingering pattern, evaluation model, teaching pattern.
The optimum fingering pattern of described prompting refers to be operated in playing in process under this pattern, and system prompt is played the optimum fingering of keyboard instrument;
Described correction fingering pattern refers to be operated in playing in process under this pattern, the mistake of system prompt piano, and the playing way of correcting a mistake;
Described evaluation model refers to be operated in playing in process under this pattern, the Real-Time Evaluation user's of system performance situation and/or be operated in played a first song under this pattern after, system revalues user's performance situation;
Described teaching pattern is by imparting knowledge to students in the signal processing unit built-in tutoring system in inside and/or by music harvester importing tutoring system, in the process of playing by the optimum fingering pattern of prompting, revise any one or combination in any in fingering pattern and evaluation model, the user is imparted knowledge to students.
Keyboard instrument teaching system provided by the invention can be realized the switching to mode of operation, for example, what current teaching method adopted is the optimum fingering pattern of prompting, the user is by sending operational order, through signal processing unit processes, change mode of operation and be correction fingering pattern, thereby realize the switching of mode of operation.
The present invention also provides the teaching method of keyboard instrument teaching system, it is characterized in that comprising the following steps:
Information Monitoring: the information acquisition unit Information Monitoring, and the information that collects is sent to signal processing unit with aspect.
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and processes, and the signal after processing is sent to signal output unit;
Feedback information: receive the signal that signal processing unit sends, and signal is converted to corresponding information.
Based on above-mentioned 3 basic steps, make up according to the logical relation of working and to realize multiple-working mode.The teaching method of system of the present invention has multiple-working mode, comprises the optimum fingering pattern of prompting, revises fingering pattern, law enforcement evaluation model and teaching pattern.
The optimum fingering pattern of described prompting comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information, provide the optimum fingering information of initial prompting
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Particularly, the setting up procedure of described step (1) can comprise the following steps:
Gather user's operational order: the user sends space instruction and/or phonetic order, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, draw the optimum play fingering for this music information, and this fingering is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding of first group is sent to information output unit in the mode of signal.
Provide the optimum fingering information of initial prompting: information output unit receives signal, the optimum fingering information of output prompting.
For example, projection arrangement receives the 3D visual information that signal is translated into projection, indicates key corresponding to this group coding with different colours, is the optimum fingering of prompting; For example, the human body servicing unit receives signal and is translated into acoustic information, directly points out the user with what fingering button; The human body servicing unit receives signal and is translated into pressure information, finger is exerted pressure hinder the user and press and point out inconsistent button; For example, projection arrangement receives the laser that signal is translated into projection, indicates key corresponding to this group coding with different colours, is the optimum fingering of prompting;
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument according to the optimum fingering of prompting, volume coordinate information and/or the pressure information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends space instruction and/or phonetic order in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draw the current fingering of user; Then obtain the optimum fingering of current prompting from program coding, the actual key information that the user is current and the optimum fingering of current prompting are compared, and judge according to comparison result:
If the current button of user is consistent with the optimum fingering of current prompting, point out next group fingering, the program coding of next group is sent to information output unit in the mode of signal; And transmit an acknowledgment signal to information output unit, information output unit receives this signal, can send corresponding information and inform that the user plays correctly.
If the optimum fingering of the button that the user is current and current prompting is inconsistent, still point out current group of fingering, keep the program coding of current group is sent to information output unit in the mode of signal; And send and to report an error signal to information output unit, information output unit receives this signal, and the optimum fingering that can send which button that corresponding information informs that the user is current and current prompting is inconsistent.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of the optimum fingering of circulation execution realization prompting successively.
Fingering has two physical quantitys to determine, one is the position (x, y) of finger presses, and another is the dynamics F of finger presses.
As preferably, analyze the method that draws the current fingering of user in the signal treatment step in described step (3) and be: the volume coordinate information (x, y, z) with the human body that collects be basic, the acquisition time interval of combining information collecting unit
Calculate, coordinate figure is made first order derivative or pluriderivative on time t, and with above-mentioned coordinate figure, and first order derivative or pluriderivative are the basis, process the planimetric coordinates information (x that draws finger presses, y) and the force value F of finger presses, draw the current fingering of user by analyzing corresponding physical quantity.
As analyzing the method that draws the current fingering of user in the signal treatment step in preferred described step (3) be: with the volume coordinate information (x of human body, y, z) calculate the planimetric coordinates information (x, y) of finger presses for the basis; Directly draw the force value F of finger presses as the basis take the pressure information that collects.
Described correction fingering pattern comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information.
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Gather user's operational order: the user sends space instruction and/or phonetic order, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, this music information is converted to the standard music score, and this standard music score is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding that first group of standard music score is corresponding is as the comparison reference of user's button.
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument, volume coordinate information and/or the pressure information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends space instruction and/or phonetic order in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draw the current fingering of user; Then obtain current standard music score from program coding, the actual key information that the user is current and current standard music score are compared, and judge according to comparison result:
If the current button of user is consistent with current standard music score, switch program coding corresponding to next group standard music score as the comparison reference of next group button of user; And transmit an acknowledgment signal to information output unit, information output unit receives this signal, can send corresponding information and inform that the user plays correctly.
If the button that the user is current and current standard music score are inconsistent, still with the comparison reference of program coding corresponding to current group of standard music score as next group button of user; And send and to report an error signal to information output unit, information output unit receives this signal, can send corresponding information inform which key bullet mistake of user with correct key position.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of circulation execution realization correction fingering successively.
Described evaluation model comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information.
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Gather user's operational order: the user sends space instruction and/or phonetic order, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, this music information is converted to the standard music score, and this standard music score is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding that first group of standard music score is corresponding is as the comparison reference of user's button.
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument, volume coordinate information and/or the pressure information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends space instruction and/or phonetic order in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draws the current fingering of user and this fingering is stored in signal processing unit in the mode of program coding; Switch program coding corresponding to next group standard music score as the comparison reference of next group button of user; Then obtain current standard music score from program coding, the actual key information that the user is current and current standard music score are compared, make real-time evaluation in conjunction with the evaluation system that is stored in signal processing unit inside, send corresponding evaluation information to information output unit.
After if the user has played current song, the program coding that namely the standard music score of reference is corresponding has as a comparison switched to latter end.The program coding that current song standard music score is corresponding compares with program coding corresponding to play fingering that is stored in the current song of user of signal processing unit, make the complete evaluation of the user being played current song in conjunction with the evaluation system that is stored in signal processing unit inside, send corresponding evaluation information to information output unit.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of circulation execution realization evaluation fingering successively.
Described teaching pattern is by imparting knowledge to students in the signal processing unit built-in tutoring system in inside and/or by music harvester importing tutoring system, in the process of playing by the optimum fingering pattern of prompting, revise any one or combination in any in fingering pattern and evaluation model, the user is imparted knowledge to students.In described tutoring system, the user can select some ready-made music score exercises, also can allow piano automatically provide suitable exercise music score according to user's present level.In the process of playing to point out optimum fingering pattern that the user is indicated or to revise the fingering pattern, the user to be carried out error correction.
Method of the present invention can realize the switching to mode of operation, and for example, what current teaching method adopted is the optimum fingering pattern of prompting, the user is by sending operational order, through signal processing unit processes, change mode of operation and be correction fingering pattern, thereby realize the switching of mode of operation.Switching in step (1) setting steps of mode of operation completed.
The invention has the beneficial effects as follows:
1. the present invention gathers music signal in several ways, as by scanning music score, recording, shooting or adopt the mode of existing standard audio format file to gather music signal;
2. system of the present invention can be applicable to various keyboard kind musical instruments, applied range;
3. system bulk of the present invention is little, is easy to carry, and does not need to be arranged on keyboard instrument, can not change this body structure of keyboard instrument, affects voice effect;
4. method provided by the invention is simple, easily operates, and can satisfy different levels user's needs, has good applicability, is beneficial to universal;
The invention provides multiple-working mode, have the function of prompting, teaching, error correction, evaluation, be conducive to promote user's performance level, be applicable to the user of different levels, have broad application prospects.
Description of drawings
Fig. 1 is the block diagram of system of keyboard instrument teaching system of the present invention;
Fig. 2 is that the structure of keyboard instrument teaching system of the present invention forms schematic diagram;
Fig. 3 is the block diagram of system of embodiment 1;
Fig. 4 is camera head Information Monitoring schematic diagram of the present invention;
Fig. 5 is the optimum fingering work pattern of prompting of the present invention process flow diagram;
Fig. 6 is correction fingering work pattern process flow diagram of the present invention;
Fig. 7 is evaluation model workflow diagram of the present invention.；
Fig. 8 is the block diagram of system of embodiment 2;
Fig. 9 is the block diagram of system of embodiment 3.
Wherein: 1 is image collecting device, and 2 is the human body servicing unit, and 3 is projection arrangement, and 4 is signal processing unit, and 5 is the music harvester, and 6 is piano, and 7 is key, the 8th, and finger.
Embodiment
The below describes the present invention according to drawings and embodiments in detail.
As depicted in figs. 1 and 2, keyboard instrument teaching system of the present invention comprises information acquisition unit, signal processing unit and information output unit.
Described information acquisition unit is used for gathering external information, and the information that collects is sent to signal processing unit with aspect.Described external information comprises music information, the volume coordinate information of human body, pressure information, acoustic information.
Described signal processing unit is used for receiving the signal that information acquisition unit sends, and processes, and the signal after processing is sent to signal output unit;
Described information output unit is used for receiving the signal that signal processing unit sends, and signal is converted to corresponding information.Described information comprises visual information, pressure information, acoustic information.
Described information acquisition unit forms following three kinds:
(1) music harvester and image collecting device;
(2) music harvester and human body servicing unit;
(3) music harvester, image collecting device and human body servicing unit;
Described information output unit forms following two kinds:
(1) projection arrangement;
(2) projection arrangement, the human body servicing unit;
Keyboard instrument teaching system of the present invention comprises following several building form:
The block diagram of system of the present invention as shown in Figure 3.
Take with the finger piano as example, identify fingering and receive operational order by the mode of image, carry out teaching in the publish picture mode of picture of projection, can use following scheme:
System of the present invention comprises information acquisition unit, signal processing unit and information output unit.
Information acquisition unit is comprised of music harvester and image collecting device.The music harvester is used for gathering music information, and image collecting device is used for gathering the volume coordinate information of human body.
The schematic diagram of image collecting device Information Monitoring as shown in Figure 4.
Information output unit is projection arrangement.Projection arrangement is used for the visual information of output prompting.
Described information acquisition unit gathers the volume coordinate information of music information, human body, the visual information of described information output unit output prompting.
During system works projection arrangement directly with the image projection of operation interface to wall, when the user need to carry out the selection of mode of operation or switching, can be directly at the enterprising line operate of the operation interface that projects, the transmit operation instruction realizes selection or the switching of mode of operation to system.
With regard to the optimum fingering of described prompting, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, and system is pointed out according to song that the user plays, and is specially the optimum fingering information of display reminding on the image that projection goes out.Simultaneity factor identification user's play fingering judges whether and points out optimum fingering consistent, and points out corresponding information to the image that projects according to judgement.
The optimum fingering work pattern of prompting of the present invention process flow diagram as shown in Figure 5;
The optimum fingering pattern of described prompting comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information, provide the optimum fingering information of initial prompting
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Particularly, the setting up procedure of described step (1) can comprise the following steps:
Gather user's operational order: the user sends the space instruction, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, draw the optimum play fingering for this music information, and this fingering is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding of first group is sent to information output unit in the mode of signal.
Provide the optimum fingering information of initial prompting: information output unit receives signal, the optimum fingering information of output prompting.
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument according to the optimum fingering of prompting, the volume coordinate information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends the space instruction in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draw the current fingering of user; Then obtain the optimum fingering of current prompting from program coding, the actual key information that the user is current and the optimum fingering of current prompting are compared, and judge according to comparison result:
If the current button of user is consistent with the optimum fingering of current prompting, point out next group fingering, the program coding of next group is sent to information output unit in the mode of signal; And transmit an acknowledgment signal to information output unit, information output unit receives this signal, can send corresponding information and inform that the user plays correctly.
If the optimum fingering of the button that the user is current and current prompting is inconsistent, still point out current group of fingering, keep the program coding of current group is sent to information output unit in the mode of signal; And send and to report an error signal to information output unit, information output unit receives this signal, and the optimum fingering that can send which button that corresponding information informs that the user is current and current prompting is inconsistent.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of the optimum fingering of circulation execution realization prompting successively.
Fingering has two physical quantitys to determine, one is the position (x, y) of finger presses, and another is the dynamics F of finger presses.
Analyzing the method draw the current fingering of user in signal treatment step in described step (3) is: the volume coordinate information (x, y, z) with the human body that collects be basic, the acquisition time interval of combining information collecting unit
Calculate, coordinate figure is made first order derivative or pluriderivative on time t, and with above-mentioned coordinate figure, and first order derivative or pluriderivative are the basis, process the planimetric coordinates information (x that draws finger presses, y) and the force value F of finger presses, draw the current fingering of user by analyzing corresponding physical quantity.
Particularly, signal processing unit is according to the height coordinate z in the volume coordinate information physical quantity of finger and acquisition time interval
Calculate the force value F of finger presses.At first calculate the speed of pressing of current time finger
, utilize formula
Can be regarded as out the speed of pressing of finger
, wherein,
The current height coordinate value of expression finger,
The height coordinate value of the previous moment of expression finger.
Afterwards according to finger presses speed
With the acquisition time interval
Calculate the force value F of finger presses.Utilize formula
, F=ma can be regarded as out the force value F of finger presses.Wherein
The current speed of pressing of expression finger,
The speed of pressing of the previous moment of expression finger, a represents to point the current acceleration of pressing, and m represents the quality of key, and m presets according to the quality of actual key.
The planimetric coordinates information (x, y) of finger presses can directly obtain.
With regard to described correction fingering pattern, system of the present invention can be achieved as follows effect:
The user in the process of shoegaze, the knowledge other user's of system play fingering, and this fingering and song that the user plays are compared, judge whether to play wrong, and according to the corresponding information of judgement prompting to the image that projects.
Correction fingering work pattern process flow diagram of the present invention as shown in Figure 6;
Described correction fingering pattern comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information.
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Gather user's operational order: the user sends the space instruction, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, this music information is converted to the standard music score, and this standard music score is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding that first group of standard music score is corresponding is as the comparison reference of user's button.
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument, the volume coordinate information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends space instruction and/or phonetic order in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draw the current fingering of user; Then obtain current standard music score from program coding, the actual key information that the user is current and current standard music score are compared, and judge according to comparison result:
If the current button of user is consistent with current standard music score, switch program coding corresponding to next group standard music score as the comparison reference of next group button of user; And transmit an acknowledgment signal to information output unit, information output unit receives this signal, can send corresponding information and inform that the user plays correctly.
If the button that the user is current and current standard music score are inconsistent, still with the comparison reference of program coding corresponding to current group of standard music score as next group button of user; And send and to report an error signal to information output unit, information output unit receives this signal, can send corresponding information inform which key bullet mistake of user with correct key position.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of circulation execution realization correction fingering successively.
With regard to described evaluation fingering pattern, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, system identification user's play fingering, this fingering and song that the user plays are compared, and make real-time evaluation, with the information estimated to the image that projects, the current song of user play complete after, system makes total evaluation, with the information estimated to the image that projects.
Evaluation model workflow diagram of the present invention as shown in Figure 7;
Described evaluation model comprises the following steps:
(1) arrange: gather user's operational order, process signal corresponding to operational order, feedback operation information;
(2) collection of music information and processing: gather music information, process signal corresponding to music information.
(3) periodic duty: the step of Information Monitoring, signal processing, feedback information is carried out in circulation successively;
Gather user's operational order: the user sends space instruction and/or phonetic order, and information process unit gathers above-mentioned instruction corresponding informance, sends to signal processing unit with aspect.
Process signal corresponding to operational order: signal processing unit receives signal and processes, and sends treated signal to information output unit.
Feedback operation information: information output unit receives signal and feedback and the corresponding information of mode of operation.
Particularly, the collection of the music information of described step (2) and processing procedure can comprise the following steps:
Gather music information: the music harvester in information process unit gathers music information, and music information is converted to signal, sends to signal processing unit.
Process signal corresponding to music information: signal processing unit receives the signal that the music harvester sends, by processing this signal, this music information is converted to the standard music score, and this standard music score is stored in signal processing unit according to playing the form of sequential packet with program coding; The program coding that first group of standard music score is corresponding is as the comparison reference of user's button.
Particularly, the On The Cycle Working Process of described step (3) can comprise the following steps:
Information Monitoring: the user plays keyboard instrument, volume coordinate information and/or the pressure information of human body when information acquisition unit collection user plays keyboard instrument, and this information is input to signal processing unit with aspect.
If the user sends space instruction and/or phonetic order in this cyclic process, information acquisition unit can gather this instruction equally, and arrives signal processing unit with aspect, and turns back in the setting steps of step (1).
Signal is processed: signal processing unit receives the signal that information acquisition unit sends, and this signal is processed, and further analyzes and then draws the current fingering of user and this fingering is stored in signal processing unit in the mode of program coding; Switch program coding corresponding to next group standard music score as the comparison reference of next group button of user; Then obtain current standard music score from program coding, the actual key information that the user is current and current standard music score are compared, make real-time evaluation in conjunction with the evaluation system that is stored in signal processing unit inside, send corresponding evaluation information to information output unit.
After if the user has played current song, the program coding that namely the standard music score of reference is corresponding has as a comparison switched to latter end.The program coding that current song standard music score is corresponding compares with program coding corresponding to play fingering that is stored in the current song of user of signal processing unit, make the complete evaluation of the user being played current song in conjunction with the evaluation system that is stored in signal processing unit inside, send corresponding evaluation information to information output unit.
Feedback information: information output unit receives the signal that signal processing unit sends, and is converted into corresponding information and exports.
Thereby above-mentioned three steps are the function of circulation execution realization evaluation fingering successively.
Take with the finger piano as example, identify fingering and receive operational order by the mode of image, receive operational order in the mode of sound, with the projection picture of publishing picture, sound, the mode that finger is exerted pressure is carried out teaching, can use following scheme:
The block diagram of system of the present invention as shown in Figure 8.
Keyboard instrument teaching system of the present invention comprises information acquisition unit, signal processing unit and information output unit.
Information acquisition unit comprises music harvester and image collecting device.
Information output unit is projection arrangement, the human body servicing unit, and wherein the message output module of human body servicing unit comprises sound generator and pressure generator.
Described information acquisition unit gathers the volume coordinate information of music information, human body, visual information, the acoustic information of prompting and the pressure information of prompting of described information output unit output prompting.
During system works projection arrangement directly with the image projection of operation interface to wall, when the user need to carry out the selection of mode of operation or switching, can be directly at the enterprising line operate of the operation interface that projects, the transmit operation instruction realizes selection or the switching of mode of operation to system.
With regard to the optimum fingering of described prompting, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, and system is pointed out according to song that the user plays, and is specially: the optimum fingering information of display reminding on the image that projection device goes out; The human body servicing unit to finger exert pressure hinder the user press with point out inconsistent button and the prompting user that sounds directly with what fingering button.System identifies user's play fingering simultaneously, judge whether with point out consistent, and according to the corresponding information of judgement prompting to the image that projects, and the prompting of sounding.
With regard to described correction fingering pattern, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, the other user's of knowledge system play fingering, and this fingering and song that the user plays are compared, judge whether to play wrong, and point out corresponding information to the image that projects according to judgement, and the prompting of sounding.
With regard to described evaluation fingering pattern, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, and system identification user's play fingering is compared this fingering and song that the user plays, and makes real-time evaluation, with the information estimated to the image that projects and the prompting of sounding.The current song of user play complete after, system makes total evaluation, with the information estimated to the image that projects, and the prompting of sounding.
When if the user need to carry out the switching of mode of operation, can be directly at the enterprising line operate of the image that projects, the transmit operation instruction realizes the switching of mode of operation to system.
Embodiment 3
Take with the finger piano as example, identify fingering and receive operational order by the mode of image, with the projection picture of publishing picture, sound, the mode that finger is exerted pressure is carried out teaching, can use following scheme:
The block diagram of system of the present invention as shown in Figure 9.
System comprises information acquisition unit, signal processing unit and information output unit.
Information acquisition unit comprises music harvester, image collecting device and human body servicing unit.Wherein the information acquisition module of human body servicing unit comprises sound transducer and pressure transducer.
Information output unit is projection arrangement, the human body servicing unit.Wherein the message output module of human body servicing unit comprises sound generator and pressure generator.
This moment, information acquisition unit can collect music information, the volume coordinate information of human body, acoustic information, pressure information.Visual information, the acoustic information of prompting and the pressure information of prompting of information output unit output prompting.
During system works projection arrangement directly with the image projection of operation interface to wall, when the user need to carry out the selection of mode of operation or switching, can be directly at the enterprising line operate of the operation interface that projects, the transmit operation instruction realizes selection or the switching of mode of operation to system.Also can carry out by the direct control system of sounding selection or the switching of mode of operation.
With regard to the optimum fingering of described prompting, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, and system is pointed out according to song that the user plays, and is specially: the optimum fingering information of display reminding on the image that projection device goes out; The human body servicing unit to finger exert pressure hinder the user press with point out inconsistent button and the prompting user that sounds directly with what fingering button.System identifies user's play fingering simultaneously, judge whether with point out consistent, and according to the corresponding information of judgement prompting to the image that projects, and the prompting of sounding.
The method of described identification user's play fingering is: the plane space coordinate information take human body directly draws the planimetric coordinates information (x, y) of finger presses as the basis; Directly draw the force value F of finger presses as the basis take the pressure information that collects.
With regard to described correction fingering pattern, system of the present invention can be achieved as follows effect:
The user is in the process of shoegaze, the other user's of knowledge system play fingering, and this fingering and song that the user plays are compared, judge whether to play wrong, and point out corresponding information to the image that projects according to judgement, and the prompting of sounding.
Above-mentioned mode of operation only is not used in for explanation the present invention and limits the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. keyboard instrument teaching system, it is characterized in that: described system comprises information acquisition unit, signal processing unit and information output unit, wherein:
Described information acquisition unit is used for gathering external information, and the information that collects is sent to signal processing unit with aspect;
Described external information comprises music information, the volume coordinate information of human body, pressure information;
Described signal processing unit is used for receiving the signal that information acquisition unit sends, and processes, and the signal after processing is sent to signal output unit;
Described information output unit is used for receiving the signal that signal processing unit sends, and signal is converted to corresponding information;
Described information comprises visual information, pressure information, acoustic information.
2. keyboard instrument teaching system according to claim 1, it is characterized in that: described information acquisition unit comprises the music harvester, also comprises image collecting device and/or human body servicing unit.
3. keyboard instrument teaching system according to claim 1, it is characterized in that: described information output unit is projection arrangement or projection arrangement and human body servicing unit.
4. keyboard instrument teaching system according to claim 1 is characterized in that: described keyboard instrument is to have key and each key of stationary arrangement order that the fixedly musical instrument of pitch is arranged, and comprises piano, pipe organ, accordion or mellotron.
5. the described keyboard instrument teaching system of according to claim 1-4 any one, it is characterized in that: described music harvester is to gather music information, the music information that collects is converted to signal, and this signal is sent to the device of signal processing unit, have camera function, sound-recording function, scan function and communication function, comprise desktop computer, notebook computer or the mobile intelligent terminal of above function.
6. the described keyboard instrument teaching system of according to claim 1-4 any one, it is characterized in that: described image collecting device is used for human body image information is converted to signal, and send to signal processing unit, include but not limited to have desktop computer, notebook computer or the mobile intelligent terminal of image collecting function.
7. the described keyboard instrument teaching system of according to claim 1-4 any one, it is characterized in that: described projection arrangement is a kind of a kind of device that electric signal can be converted to the visual information that projects, comprise laser, DLP projector, the 3D projector, the 2D projector has desktop computer, notebook computer or the mobile intelligent terminal of projecting function.
8. the described keyboard instrument teaching system of according to claim 1-7 any one, it is characterized in that: described mobile intelligent terminal is for can catch external information, can calculate, analyze and process, and can carry out the portable set of communication between different terminals.
9. according to claim 1-8 described keyboard instrument teaching systems, it is characterized in that: described system has multiple-working mode, and described mode of operation comprises the optimum fingering pattern of prompting, revises the fingering pattern, evaluation model, teaching pattern.
10. the teaching method of a keyboard instrument teaching system is characterized in that comprising the following steps:
(1) Information Monitoring: image collecting device gathers the volume coordinate information of human body, and this information is input to signal processing unit with aspect; The human body servicing unit gathers the volume coordinate information of human body, pressure information; The music harvester gathers music information, the music information that collects is converted to signal, and this signal is sent to signal processing unit;
(2) signal is processed: signal processing unit receives from human body servicing unit, image collecting device and music harvester transmitted signal, and this signal is processed, and the signal after processing is sent to human body servicing unit and projection arrangement;
(3) feedback information: the human body servicing unit receives the signal of signal processing unit transmission and is converted into acoustic information, pressure information; Projection arrangement receives the signal of signal processing unit transmission and is converted into visual information.
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| CN110796919A (en) * | 2019-11-11 | 2020-02-14 | 上和弦(北京)教育科技有限公司 | Highly-integrated music teaching demonstration system |
| CN111667737A (en) * | 2020-05-29 | 2020-09-15 | 同济大学 | Intelligent guidance system for playing fingering |
| CN112150995A (en) * | 2020-09-25 | 2020-12-29 | 天津中德应用技术大学 | Digital piano with playing guide function |
| CN113160656A (en) * | 2021-04-19 | 2021-07-23 | 中国美术学院 | Guzheng playing prompting method and Guzheng teaching auxiliary system |
| CN113362679A (en) * | 2021-06-23 | 2021-09-07 | 平顶山学院 | Music score recognition board for music basic theory |
| CN113362679B (en) * | 2021-06-23 | 2023-05-12 | 平顶山学院 | Music basis theory is with understanding spectral plate |
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