CN109256010A - A kind of music teaching demo system - Google Patents
A kind of music teaching demo system Download PDFInfo
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- CN109256010A CN109256010A CN201811464753.2A CN201811464753A CN109256010A CN 109256010 A CN109256010 A CN 109256010A CN 201811464753 A CN201811464753 A CN 201811464753A CN 109256010 A CN109256010 A CN 109256010A
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- 230000033001 locomotion Effects 0.000 claims abstract description 38
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- 230000005540 biological transmission Effects 0.000 claims description 9
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- 238000009434 installation Methods 0.000 claims description 2
- 230000005057 finger movement Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 206010011469 Crying Diseases 0.000 description 10
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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Abstract
The invention discloses a kind of music teaching demo systems, including musical instrument of imparting knowledge to students, main control device, image capture device and video processor, teaching musical instrument obtains the midi signal generated when performance by MIDI trigger and is sent to main control device, main control device generates the virtual screen at teaching instrument playing position, and corresponding performance movement is shown on virtual screen according to midi signal, and it is sent to video processor, the image at image capture device acquisition teaching instrument playing position, and it is sent to video processor, the virtual screen received and image are sent to teaching demonstration equipment by video processor, to be used for music teaching.The virtual screen of finger movement and performance movement when the system can play an instrument teacher is broadcast to student, so that each student can clearly watch the finger movement of teacher and the key pressed by teaching demonstration equipment, conducive to student referring to study, it is widely used in the scenes such as multi-media classroom, electric steel classroom, the classroom MIDI.
Description
Technical field
The present invention relates to music education technical field, in particular to a kind of music teaching demo system.
Background technique
Music is a kind of art for reflecting mankind's actual life emotion, can cultivate one's taste, cause the emotional resonance of people.
In the today for focusing on quality-oriented education, deepen also influence people, especially child to a certain extent to musical understanding and study
The mode of thinking and three see.Therefore, often having family is child's registration instrumental music tutorial class, cultivates the interest to music, or
Adult is intended to seek the music education in terms of receiving instrumental music for hobby, or even has the people for having been provided with certain instrumental music basis
Want to further increase the playing ability of oneself and need to carry out music teaching.
Current music teaching mode generallys use one-to-many teaching pattern, and how teacher on dais plays pleasure if demonstrating
Device, student are gathered on dais after viewing, return to and carry out imitation rehearsal on the seat of oneself.But for music teaching, especially
For musical instrument teaching, the performance movement that student can see teacher clearly is very crucial, but above-mentioned teaching pattern can not allow all sometimes
The raw performance movement for all watching or seeing teacher, is unfavorable for student referring to study, leads to the reduction of learning efficiency.Even if institute
There is student that can see the performance movement of teacher clearly, but since teacher can only carry out performance movement with language while playing
Illustrate, such as illustrate the note played and the music theory of performance etc., so that the time of teaching one performance movement is longer, teaching
Progress is more slow.
Summary of the invention
(1) goal of the invention
To overcome above-mentioned at least one defect of the existing technology, the performance for allowing all students that can see teacher clearly is dynamic
Make, improves learning efficiency, and accelerate teaching process under the premise of not losing quality of instruction, the present invention provides following technical sides
Case.
(2) technical solution
As the first aspect of the present invention, the invention discloses music teaching demo systems, comprising:
Teaching musical instrument, equipped with MIDI trigger, the MIDI trigger is connect with main control device, when for that will play
The midi signal of generation is sent to the main control device；
The main control device, for generating the virtual screen at the teaching instrument playing position, according to the midi signal
Corresponding performance movement is shown on the virtual screen, and the virtual screen is sent to video processor；
Image capture device for acquiring the real image at the teaching instrument playing position in real time, and is sent to described
Video processor；
The video processor, for the virtual screen received and/or real image to be sent to teaching demonstration equipment.
In a kind of possible embodiment, the main control device include virtual screen generation module, MIDI identification module and
Output interface, the virtual screen generation module are used to generate the virtual screen at the teaching instrument playing position, the MIDI
Identification module on the virtual screen for showing corresponding performance movement, the output interface according to the midi signal
For the virtual screen to be sent to video processor.
In a kind of possible embodiment, the teaching demonstration equipment includes:
First display equipment, is connect, for receiving and playing institute with the video processor by digital visual interface
State the image that video processor is sent.
In a kind of possible embodiment, the main control device further includes for generating performance sound according to the midi signal
Sound and the sound acquisition module that performance sound is sent to the video processor, and/or, music teaching demonstration system
System further includes for acquiring the sound collection equipment played sound and performance sound is sent to the video processor in real time；And
And
The performance sound that the video processor is also used to receive is sent to the teaching demonstration equipment and plays out.
In a kind of possible embodiment, the teaching demonstration equipment includes:
Second display equipment, remotely connect with the video processor, for receiving at video described in simultaneously remote playing
The image and sound that reason device is sent.
In a kind of possible embodiment, the main control device further include: music theory information generating module, for according to described in
Midi signal identifies the note or chord of performance, generates music theory and parses picture, and is sent to video processor.
In a kind of possible embodiment, during the multiway images received are converted to split screen or drawn by the video processor
The form of picture is simultaneously sent to the teaching demonstration equipment.
In a kind of possible embodiment, the video processor is splicing video processor, and the splicing video is handled
Device passes through CATV line transmission vision signal.
In a kind of possible embodiment, the teaching musical instrument passes through MIDI-USB patchcord or USB data line or wireless
The midi signal generated when playing is sent to the main control device by MIDI transceiver.
In a kind of possible embodiment, described image acquisition equipment and/or the main control device and/or the teaching are drilled
Show that equipment is connect by HDMI wire or DVI line with the video processor.
In a kind of possible embodiment, the system also includes hanging apparatus, the hanging apparatus includes support bar group
Part and the sliding rail being slidably mounted on the support rod component, the sliding rail are installed on the side of the teaching musical instrument,
Described image acquisition equipment is slidably mounted on the sliding rail, and the performance position towards the teaching musical instrument.
In a kind of possible embodiment, the support rod component includes:
Support rod, one end are mutually fixed with fixed bearing structure；
Telescopic arm, one end are slidably mounted on the support rod, and the other end is controllably to separate/close branch
The direction extension/contraction of strut, the sliding rail are installed on the other end of the telescopic arm.
In a kind of possible embodiment, the first base being slidably connected with the sliding rail is provided on the sliding rail,
It is provided with the second base for rotating coaxially connection with the first base in the first base, is provided in the second base
With the globe joint of second base rotation connection, interconnecting piece is fixed on the globe joint, described image acquires equipment
It is fixed on the interconnecting piece.
In a kind of possible embodiment, the video processor is also used to show other electronic equipments hair connected to it
The teaching picture come, the teaching picture includes: lantern slide courseware, instructional video, teaching picture, teaching board.
As a second aspect of the invention, the invention discloses music teaching demenstration methods, comprising:
Generate the virtual screen at teaching instrument playing position；
The midi signal generated when playing is obtained in real time, shows phase on the virtual screen according to the midi signal
The performance movement answered；
The real image at the teaching instrument playing position is acquired in real time；
The virtual screen and/or the real image are shown in the form of split screen or picture-in-picture；Wherein,
The teaching musical instrument includes one or more of: electric crying musical instrument, chord crying musical instrument, aerophone, film crying musical instrument.
(3) beneficial effect
Music teaching demo system provided by the invention, has the following beneficial effects:
1, the virtual screen of finger movement and performance movement when teacher can play an instrument is broadcast to student, so that
Each student can clearly watch the finger movement of teacher and the key pressed by teaching demonstration equipment, be conducive to student
Referring to study, music teaching condition is improved, is widely used in the scenes such as multi-media classroom, electric steel classroom, the classroom MIDI.
2, by showing playing movement and playing key and be played simultaneously and play sound for teacher on teaching demonstration equipment
Sound enables student to cooperate music while viewing and emulating fingering and key, improves the quality of teaching.
3, by more teaching demonstration equipments of setting, the student to multiple classrooms music teaching can be carried out simultaneously, simultaneously
By the teaching demonstration equipment for acquiring the acoustic information of musical instrument and being sent to other live classrooms, so that the student in all classrooms is
Music can be cooperated while viewing and emulating fingering and key, realize more places teaching at scene.
4, teaching demonstration equipment obtains the content of courses that video processor uploads in real time by internet or cable television network
Audio, video data realizes remote music teaching, improves efficiency of teaching and resource utilization.
5, music theory is generated by the MIDI identification software of main control device and parses picture, to show note, chord and corresponding
Title and music score, realize the teaching of melody creation, while teacher being made to no longer need to explain note, music theory etc. and can be
It is born from capable viewing, teaching process is accelerated under the premise of not losing quality of instruction.
6, height and position and the horizontal position of image capture device are adjusted by hanging apparatus, it can be easily according to need
Ask the customized position shot and content.
Detailed description of the invention
It is exemplary below with reference to the embodiment of attached drawing description, it is intended to for the explanation and illustration present invention, and cannot manage
Solution is the limitation to protection scope of the present invention.
Fig. 1 is the structural block diagram of music teaching demo system first embodiment provided by the invention.
Fig. 2 is that the display picture of teaching demonstration equipment in music teaching demo system first embodiment provided by the invention shows
It is intended to.
Fig. 3 is the lifting in music teaching demo system first embodiment provided by the invention equipped with image capture device
The axonometric schematic diagram of device.
Fig. 4 is the schematic top plan view of Fig. 3.
Fig. 5 is the right side view of Fig. 3.
Fig. 6 is the flow diagram of music teaching demenstration method first embodiment provided by the invention.
Detailed description of the invention:
1 hanging apparatus
100 support rod components
101 support rods
102 clamping parts
110 telescopic arms
111 fixing ends
112 telescopic ends
113 pin holes
114 pin shafts
200 sliding rails
201 sliding slots
301 first bases
302 second bases
303 globe joints
304 interconnecting pieces
901 video cameras
902 fenders
903 desks
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.
It should be understood that in the accompanying drawings, from beginning to end same or similar label indicate same or similar element or
Element with the same or similar functions.Described embodiments are some of the embodiments of the present invention, rather than whole implementation
Example, in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than indicate their significance level and sequence
Deng.
Below with reference to the first embodiment for the music teaching demo system that Fig. 1 the present invention is described in detail provides.The present embodiment
It is mainly used in music and musical instrument teaching, the virtual screen of finger movement and performance movement when teacher can play an instrument
It is broadcast to student, so that each student can clearly be watched the finger movement of teacher and be pressed by teaching demonstration equipment
Key, be conducive to student referring to study, be widely used in the scenes such as multi-media classroom, electric steel classroom, the classroom MIDI.
As shown in Figure 1, music teaching demo system provided in this embodiment mainly includes: teaching musical instrument, main control device,
Image capture device and video processor.
Teaching musical instrument is the tool that uses when teacher carries out playing demonstration during music teaching for student, teacher side into
The demonstration side of row performance movement is explained, so that student better understood when the music theory knowledge played.Make in the present embodiment
For teaching musical instrument equipped with MIDI trigger, MIDI trigger is used to generate corresponding MIDI letter when playing and imparting knowledge to students musical instrument
Number.Wherein, MIDI (Musical Instrument Digital Interface), i.e. musical instrument digital interface, can use note
Digital controlled signal record music.Midi signal includes MIDI message, and MIDI message is the number description to music score, packet
Include the instruction such as note, control parameter.Musical instrument impart knowledge to students equipped with MIDI trigger, MIDI trigger connect with main control device, is used for
The midi signal generated when playing is sent to main control device, to be further processed.
It should be noted that teaching musical instrument includes one or more of: electric crying musical instrument, chord crying musical instrument, aerophone, film
Crying musical instrument.The work that teaching musical instrument in the present embodiment describes music teaching demo system using the piano in chord crying musical instrument is former
Reason, but it is understood that, teaching musical instrument can also be the musical instruments such as electronic organ, bass, violin, guitar, circular horn and drum, as long as
The musical instrument that MIDI trigger can be equipped with can be used as above-mentioned teaching musical instrument and be applied to music teaching provided in this embodiment and demonstrates
Music teaching is carried out in system.
Main control device is connect with teaching musical instrument, including virtual screen generation module, MIDI identification module and output interface, empty
Quasi- picture generation module is used to generate the virtual screen at teaching instrument playing position, and MIDI identification module is used for what foundation received
Midi signal shows corresponding performance movement on the virtual screen that virtual screen generation module generates, then by virtual screen
It is sent to video processor in real time.Main control device can use personal computer, and MIDI identification module is equipped with MIDI knowledge
Other software, for example, MIDI culous software or other can play the software of identical function, MIDI identification software can be set in master control
It is standby when connect with teaching musical instrument, it identifies the type of teaching musical instrument, such as identifies the piano used in the present embodiment, then void
Quasi- picture generation module is the virtual screen for producing piano performance position.The part that position, that is, musical instrument is interacted with hand is played, is
Musical instrument is operated and is caused the part of music by hand or hand held object, different musical instruments play position all in accordance with the construction of musical instrument itself and
Playing mode determines.Piano has 88 keys, and piano is as teaching musical instrument, and playing position is exactly each key, therefore MIDI
What identification module cooperation virtual screen generation module generated is the virtual screen of piano key.
MIDI identification module also identifies that performance acts, and for piano, performance movement is exactly the key for playing key
Movement, such as which or which key that teacher plays, it is to be understood that the performance movement of various teaching musical instrument not phase
Together, such as strike kind musical instrument, the position that performance movement is hit when being percussion instrument is played dynamic for violin
Work is which string pressed and/or which string of pulling when playing music device drawn.When teacher plays key, the MIDI trigger of piano
Midi signal comprising note corresponding to the key played is sent to the MIDI identification module of main control device, MIDI identification immediately
After module identifies the key played, corresponding display or mark are made on the corresponding key on virtual screen, to enable a person to
The clear key promptly found out when teacher plays.The key played is being made in virtual screen using MIDI identification module
After color is shown, the data of virtual screen are sent to video processor by output interface, are sent to after being handled by video processor
Teaching demonstration equipment, teaching demonstration equipment can show virtual screen, as a part of content of music teaching demonstration, tool
Body display mode is described below.
Specifically, video processor mainly include programmable logic device, video coding chip, video processor chip,
Microprocessor, memory, USB switch, processing circuit, DVI input interface, DVI ring outgoing interface, HDMI input interface, HDMI
Ring outgoing interface, SDI input interface, SDI ring outgoing interface, gigabit network interface/100-M network Ethernet, USB interface etc..Wherein, DVI input and output
Interface, HDMI input/output interface and SDI input/output interface are set on rear panel, and are separately connected respective processing electricity
One or more can be set in road, each input/output interface according to demand, and processing circuit is connect with programmable logic device, can compile
Journey logical device is connected with video coding chip, video processor chip and microprocessor simultaneously, for sending to input interface
Video data handled, and output interface is sent to by processing circuit, USB switch and USB interface are and micro process
Device connection provides more general interface, gigabit network interface and 100-M network Ethernet for networking for data transmission.Video processor is also
It may include that HDMI monitors that interface, LCD monitor interface etc. in advance in advance, for realizing premonitoring function.
Image capture device is electrically connected with video processor, for acquiring the practical figure at teaching instrument playing position in real time
Picture, and it is sent to video processor.Image capture device is pre-set to the performance position of alignment piano, i.e. key part,
In teacher's piano, image capture device can capture the movement of playing of teacher's hand, and will contain and play movement
Real image be sent to video processor, teaching demonstration equipment, teaching demonstration equipment are sent to after being handled by video processor
Real image can be shown, as a part of content of music teaching demonstration, be particularly shown mode and retouched below
It states.In order to be demonstrated to student for practical with playing image clearly, image capture device can use high-definition camera, to guarantee reality
The quality and clarity of border image, for example, by using GoPro video camera.
What video processor was used to send virtual screen and/or image capture device that the main control device received is sent
Real image is sent to teaching demonstration equipment, to be used for music teaching.Video processor supports the input of multi-channel video signal, energy
Enough while receiving the image data that image capture device and main control device are sent.Teaching demonstration equipment is that have setting for display screen
Standby, the data that can send video processor are shown, are seen together in the form of video broadcasting for a small amount of or numerous students
It sees, realizes the exemplary teaching of broadcast level.
Before music teaching demonstration starts, the image capture device key part of aligned piano and by key part
Real image be sent to video processor, main control device has also identified that teaching musical instrument is piano, generates piano
The virtual screen of key section is simultaneously sent to video processor.
After music teaching demonstration starts, image capture device real-time capture to teacher's hand performance is acted, and piano is certainly
The information such as the note played also are sent to main control device by the MIDI trigger of band, are identified by the MIDI identification software of main control device
Display is made on key virtual screen afterwards, therefore the received virtual screen of video processor and real image synchronously reflect
Playing for teacher is gone out.
The real image that image capture device acquires only can be sent to teaching demonstration equipment by video processor, then is imparted knowledge to students
Demonstration equipment only shows the image of practical piano key part, and each student is enabled clearly to view and emulate the hand of teacher
Movement；Main control device generation virtual screen only can also be sent to teaching demonstration equipment by video processor, then teaching demonstration is set
The standby picture for only showing virtual key part, enables each student clearly to view and emulate which qin teacher specifically presses
Key；Video processor can also show above-mentioned virtual screen and above-mentioned real image simultaneously, so that each student imparts knowledge to students in viewing
When demonstration equipment, the hand motion of teacher can either be seen, while can also see the corresponding key of the hand motion of teacher, be conducive to
Student improves music teaching condition referring to study, and can be applied to multi-media classroom, electric steel classroom and the classroom MIDI etc. fields
Scape has achieved the purpose that music teaching is demonstrated.
Particularly, the multiway images received can be converted to form and the transmission of split screen or picture-in-picture by video processor
To teaching demonstration equipment.Video processor support shows multi-channel video signal split screen display available or picture-in-picture, such as Maipu's view is logical
LED780H type and LED590H type four splicing video processors, can show four independent windows, can show simultaneously
The image in most four varying input signal sources, while input signal source can be up to eight tunnels, and all input signal sources
It can be rapidly switched to any delivery outlet.
When video processor shows virtual screen and real video simultaneously, output image can be divided into above and below
Two parts, upper part show virtual screen, and lower part shows real video, and makes the key and reality in virtual screen
The key of video image aligns, and will play movement and actual key with respect to position convenient for student.Video processor can also be instant
Switching output picture, such as close that display is therein to be inputted or new display inputs all the way all the way.
Further, image capture device can be set multiple, and each image capture device acquires different in real time respectively
The image at teaching instrument playing position, to carry out teaching demonstration for instrumental ensembling to music.For example, first image capture device is adopted
Collect the hand motion of First piano key, second image capture device acquires the hand motion of second piano key, Fig. 1
The dotted portion of middle upper left quarter represents second image capture device and second piano, and two pianos are respectively equipped with MIDI touching
Device is sent out, main control device can handle the midi signal that the MIDI trigger of two pianos is sent respectively, and be respectively sent at video
Device is managed, video processor can receive two-way key virtual screen and two-way key entity video image, and in reasonable conversion
It is all shown on teaching demonstration equipment afterwards.
Further, each image capture device can also acquire same the different of teaching musical instrument in real time respectively and play position
Real image, for carrying out better teaching demonstration to certain form of musical instrument.For example, first image capture device is adopted
Collecting electric guitar left hand hand motion (stopping), second image capture device acquires electric guitar right hand hand motion (string pulling), depending on
Frequency processor can receive key virtual screen all the way and two-way key entity video image, and all show after reasonable conversion
Show on teaching demonstration equipment.
In one embodiment, teaching demonstration equipment includes the first display equipment, and the first display equipment installation is on site
Place to operate schools is directly connected to or is transferred connection, for receiving and playing at video by digital visual interface and video processor
The image that reason device is sent.Specifically, the first display equipment is also installed on the classroom when Faculty and Students are in same classroom
It is interior, the image data that video processor is sent is received, and image data is played back in real time.Image data can be multichannel picture
Face is through video processor split screen or is converted to picture-in-picture form, such as the display screen of the first display equipment is divided into upper and lower two
Point, upper part shows key virtual screen, and lower part shows the key real video of image capture device acquisition.
First display equipment generallys use the equipment such as large high-definition screen curtain or projector, and Student oriented is installed on classroom wall
On, when student's quantity is more in classroom, the first display equipment can make every student see that teacher's plays movement and bullet
Play key.Simultaneously as teacher is when playing the piano as teaching musical instrument, piano can be synchronized and be made a sound, therefore student sees
To the first display equipment on the teacher's hand motion, the key in virtual screen and the sound of playing heard that show be synchronous
, music can be cooperated while viewing and emulating fingering and key and musicality to student's progress music teaching, improve quality of instruction.
It is understood that the first display equipment can be a component part in music teaching demo system.
In addition, video processor can be multichannel splicing video processor, which passes through CATV route
Transmission video signal.Opposite, the first display equipment is also possible to the large-screen splicing being made of muti-piece display screen and shows wall, spells
It connects video processor and converts the modes such as picture out picture or picture-in-picture for multiple signals input source, then picture split into for example multiple
Part, and exported respectively to each display screen.The spliced display wall being made of muti-piece display screen, display area is bigger, Neng Gouman
Foot carries out music teaching to more students simultaneously in bigger teaching region.Meanwhile with CATV route or other wired lines
The splicing video processor of signal is transmitted for the network video processor transmitted in a manner of internet etc. in road, and data pass
Defeated delay very little avoids situations such as picture is inconsistent, sound picture is asynchronous generation.
When a teacher teaches the student in the more than one classroom in some region, teacher is located in the A of classroom, but simultaneously
Also music teaching is done to the student for the classroom B for being located at the next door classroom A, and the student of classroom B can't hear teacher's bullet in the A of classroom
The sound of piano is played, this can make troubles to teaching, influence quality of instruction and teaching process.To solve this problem, in one kind
In embodiment, main control device further includes for generating performance sound according to midi signal and being sent to sound is played at video
The sound acquisition module of device is managed, and/or, which further includes for acquiring performance sound in real time and will drill
Play the sound collection equipment that sound is sent to video processor in real time.The performance sound hair that video processor is also used to receive
It send to teaching demonstration equipment and plays out.It is understood that one of them of sound acquisition module and sound collection equipment are
Achievable sound collection task, but the music teaching demo system can be provided simultaneously with the two components.Image capture device and
Sound collection equipment can be integration apparatus, such as can acquire the video camera of image and sound simultaneously.
Specifically, the first display equipment can be installed in the A of classroom and respectively in the B of classroom, and musical instrument of imparting knowledge to students, master control are set
Standby, image capture device and video processor are all set in the A of classroom, the first display equipment and video processor of classroom B
Connection.Teacher play teaching musical instrument piano when, classroom B first display equipment can equally show teacher play movement and
Play key, simultaneously because increase the acquisition of sound, the first display equipment in the B of classroom can also play out in the A of classroom
Identical music so that the indoor student of multiple religions view and emulate it is identical with the content of courses experienced, realize it is live morely
Point teaching.
In addition, the first display equipment being located in the B of classroom is also possible to be shown by the large-screen splicing that muti-piece display screen forms
Show wall, splices video processor for multiple signals input source and be converted into the modes such as picture out picture or picture-in-picture, then picture is split into
Such as multiple portions, each part are sent respectively to the display at the identical stitching position in different classrooms by signal output end
Screen forms identical display wall to multiple splicings by a video processor and carries out video output.
Existing music teaching mode mainly uses on-the-spot teaching, and teacher can only carry out face to the student for coming teacher scene
It awards, this is a kind of waste to teaching resource.In order to increase music teaching mode, the utilization rate to teaching resource is improved, in one kind
In embodiment, teaching demonstration equipment includes the second display equipment, and the second display equipment remotely connect with video processor, is used for
Receive the image and sound that simultaneously remote playing video processor is sent.The above-mentioned mode remotely connected can be remote by internet
Journey connection, is also possible to remotely connect by cable television network.
First display equipment is mainly used for on-the-spot teaching, and the second display equipment is mainly used for remote teaching.Second display
Equipment can be the equipment such as personal computer, tablet computer in student family.For teacher when carrying out music teaching, student passes through the
Two display equipment are connect with video processor, are received the image data and voice data that video processor is sent, are then broadcast
It puts, to realize that remote music is imparted knowledge to students.Wherein, voice data can be the sound acquisition module of main control device according to midi signal life
At performance sound, be also possible to acquire in real time by sound collection equipment and play sound.Student is visited by the second display equipment
Internet or cable television network are asked to obtain the content of courses audio, video data that video processor uploads in real time, realizes remote music
Teaching, has widened teaching method, has improved efficiency of teaching and resource utilization.
In addition, the second display equipment is also possible to the large-screen splicing being made of muti-piece display screen and shows wall, splice video
Multiple signals input source is converted the modes such as picture out picture or picture-in-picture by processor, then picture is split into such as multiple portions,
And it remotely exports to each display screen.Although remote transmission data may cause data to postpone to a certain extent, in network
When fast speed, it can be realized and show that wall carries out remote music education to student using large-screen splicing, eliminate territory restriction.
It is understood that the communication between students and teacher for convenience, the second display equipment and main control device can be with
It is equipped with microphone, student and teacher is allowed remotely to carry out speech exchange by modes such as internets.
As shown in Fig. 2, in one embodiment, main control device further includes music theory information generating module, music theory information is raw
It is used to identify the note or chord of performance according to midi signal at module, generates music theory and parse picture, and be sent to view in real time
Frequency processor.The MIDI identification software (MIDI culous software) that main control device is equipped with is in addition to empty in key according to midi signal
It is shown on quasi- picture and plays key accordingly, additionally it is possible to identify the note or chord played, and foundation according to midi signal
The note or chord played generate music theory parsing picture.Music theory parses and shows the note played and its title on picture, or and
String and its title, such as the left side of music theory parsing picture show corresponding music score, and right side is by row display " D min 7 ", " F 6/
The note names such as D ", " 6 sus2 sus4/D of C ".
Music theory parses picture can be with key virtual screen and key solid images one in the form of split screen or picture-in-picture
It is same to be shown on teaching demonstration equipment, such as in Fig. 2, video processor will show that screen is divided into upper, middle, and lower part, top
A1 is divided to show that music theory parses picture, middle part A2 shows that key virtual screen, lower part A3 show key entity picture.In teacher
It partially shows that teacher's hand plays movement when piano, under screen, the actual key played, top is partially shown in screen
Divide the title for showing position and note of the corresponding note in music score, teacher can be made to no longer need to explain note, pleasure in this way
Reason etc., and can be student and voluntarily watch and put question to, it has saved the time of teacher, teacher can be when student viewing music theory parses
Telling about for other content is carried out, further deepens understanding of the student to lecture contents, adds under the premise of not losing quality of instruction
Fast teaching process.
Further, main control device may be provided with DAW (Digital Audio Workstation) software, DAW software
Also known as wrirte music software, incorporate MIDI edit, record, the functions such as audio mixing, video, can be used in making music and production music score,
Such as Cubase software.Specifically, main control device is provided with Cubase software, during teacher's piano, lead to simultaneously
Cubase software development music score or production music are crossed, and the picture of manufacturing process is sent to video processor, and then by imparting knowledge to students
Demonstration equipment shows, the teaching for melody creation.When needed, the display of part on screen can be switched, it is soft with DAW
The picture of part replaces music theory to parse picture.
In one embodiment, teaching musical instrument passes through MIDI-USB patchcord or USB data line or wireless MIDI transmitting-receiving
The midi signal generated when playing is sent to main control device by device.Musical instrument impart knowledge to students equipped with midi interface, and main control device is usual
For personal computer, can use the transmission that MIDI-USB patchcord carries out midi signal at this time, the midi port of patchcord with
Musical instrument of imparting knowledge to students connects, and USB port is connect with main control device.If musical instrument of imparting knowledge to students supports USB interface communication, USB can be directly used
Data line, data line both ends are separately connected teaching musical instrument and main control device.If teaching musical instrument is built-in with wireless MIDI transceiver,
A wireless MIDI transceiver can be also inserted at the USB port of main control device, so that wired connection becomes being wirelessly connected.
In one embodiment, image capture device and/or main control device and/or teaching demonstration equipment pass through HDMI wire
Or DVI line connect and carries out data transmission with video processor.HDMI(High Definition Multimedia
Interface), i.e. high-definition media interface is a kind of totally digitilized video and sound transmission interface, can send and not press simultaneously
The audio and vision signal of contracting.HDMI wire is the data line for HDMI interface.DVI(Digital Visual
Interface), i.e. digital visual interface is equally used for sending unpressed digital video data to display equipment.DVI line is
Data line for DVI interface.
Image capture device generallys use video camera, and video camera can usually support HDMI interface or DVI interface to communicate, because
This can be connect with video processor by HDMI wire or DVI line and as wherein signal input sources all the way.
Main control device generallys use desktop PC, desktop PC can generally also support HDMI interface or
DVI interface communication, therefore can be connect by HDMI wire or DVI line with video processor and as another way signal input sources.
Usually high-clear display when teaching demonstration equipment is imparted knowledge to students at the scene, can generally also support HDMI interface or DVI
Interface communication, therefore can be connect by HDMI wire or DVI line with video processor and be exported as signal.
As shown in Figures 3 to 5, in one embodiment, which further includes hanging apparatus 1, is hung
Assembling device 1 include support rod component 100 and with the sliding rail 200 that is slidably mounted on support rod component 100, sliding rail 200
It is installed on the side of teaching musical instrument, image capture device is slidably mounted on sliding rail 200, and the performance of teaching-oriented musical instrument
Position.
Musical instrument impart knowledge to students by taking fender 902 as an example, fender 902 is placed on desk 903, and hanging apparatus 1 is set to electric steel
The edge of desk 903 is fixed in 902 rear side of qin, one end of support rod component 100, and other end setting is equipped with sliding rail 200, sliding
Rail 200 can be moved up and down controllably along support rod component 100, for adjusting height.It is mobile when needing to adjust height to slide
Rail 200 fixes the position of sliding rail 200 after height adjustment, by adjusting the height of sliding rail 200, can adopt to image
The size of key is adjusted in the real screen of collection equipment acquisition.Video camera 901 as image capture device is installed on cunning
It on rail 200, and can controllably be moved along sliding rail 200, for adjusting horizontal position.It is mobile when needing to adjust horizontal position
Video camera 901 fixes the position of video camera 901 after horizontal position is adjusted, by the horizontal position for adjusting video camera 901
It sets, occurs which key is adjusted in the real screen that can be acquired to video camera 901.
In one embodiment, support rod component 100 includes support rod 101 and telescopic arm 110.The one of support rod 101
End is mutually fixed with fixed bearing structure.One end of telescopic arm 110 is slidably mounted on support rod 101, and the other end is controllably
To the direction extension/contraction of separate/close support rod 101, sliding rail 200 is installed on the other end of telescopic arm 110.
Fixed bearing structure is the fixed structure of surrounding, such as places the desk 903 of fender, one end of support rod 101
It can be by clamping, is spirally connected, snap connection, such as shown in Fig. 3 to Fig. 5, one end of support rod 101 is fixed with clamping part
102, the edge of desk 903 is clamped and fastened on by clamping part 102.The desktop that support rod 101 is typically normal to desk 903 is set
It sets.Telescopic arm 110 is in hollow, and one end is fixing end 111, and the other end is telescopic end 112, and fixing end 111 is movably pacified
Loaded on support rod 101, such as illustrated in Fig. 3 to Fig. 5,111 sets of fixing end are clipped on support rod 101, and pass through rotation
The bolt of end is twisted to adjust clamping force, using the fixed telescopic arm 110 of frictional force, and when needing to adjust height, is reversely screwed
End bolt unclamps fixing end 111 and moves up and down or unload to be able to carry out.
The part of fixing end 111 connecting with telescopic end 112 is U-shaped, and the other side of telescopic end 112 is provided with sliding rail
200, therefore the part of telescopic end 112 connecting with fixing end 111 is also U-shaped, forms hollow after the two connection.Telescopic arm
110 telescopic ends 112 for being in are movably coupled to fixing end 111, specifically, offering in telescopic end 112 and fixing end 111
Multiple pin holes 113 are equipped with the pin shaft 114 for being fixed on telescopic end 112 in fixing end 111 in pin hole 113.Extract pin shaft
After 114, telescopic end 112 can be slided along fixing end 111, when telescopic end 112 is mobile, the also synchronizing moving of sliding rail 200, for adjusting
Save the horizontal position of video camera 901.After adjusting, two pin shafts 114 are at least inserted into every side, guarantee telescopic end 112
Steadily.
By telescopic arm 110 height adjustment and telescopic arm 110 in one direction (close to or far from fender
On 902 direction) Level tune, sliding rail 200 has been adjusted to positioned at the top of fender 902.Sliding rail 200, which is equipped with, to be slided
Slot 210, video camera 901 210 can move along the chute, to adjust video camera 901 in the other directions (along 902 qin of fender
The orientation of key) horizontal position, be finally completed the adjusting of 901 spatial position of video camera.
It, can be by adjusting its height and horizontal position, so that only taking electric steel when adjusting the position of video camera 901
A portion of all keys of qin 902, such as bass area is only shot, thus can be for the key of this part in teaching
Carry out specific aim teaching.
In the case where fender 902 itself is equipped with supporting leg, hanging apparatus 1 can equally be fixed on the back of fender 902
Side, or individually set up the supporting leg of a hanging apparatus.
Further, the first base 301 being slidably connected with sliding rail 200 is provided on sliding rail 200, first base 301 is used
In driving video camera 901 to move along sliding rail length direction, the horizontal position of video camera 901 is adjusted.It is provided in first base 301
The second base 302 of connection is rotated coaxially with first base 301, second base 302 is for driving video camera 901 with first base
301 central axises are rotary shaft rotation, and the rotational plane of video camera 901 is roughly parallel to horizontal plane, can adjust video camera 901
Direction.The globe joint 303 being rotatablely connected with second base 302 is provided in second base 302, globe joint 303 is used for band
Dynamic video camera 901 is that rotation point carries out multi-angle rotary with spherical center, can equally adjust the direction of video camera 901, also
The angle of shooting picture can be adjusted.Interconnecting piece 304 is fixed on globe joint 303, video camera 901 is fixed on interconnecting piece 304
On.
In one embodiment, video processor is also used to show the teaching that other electronic equipments connected to it are sent
Picture.During music teaching, teacher, which may may require that, explains the content of courses using auxiliary courseware, at this time can be with
The display picture for switching main control device replaces original key virtual screen and/or pleasure using the teaching picture of auxiliary courseware
Understand analysis picture.If other electronic equipments can be passed through but when key virtual screen and auxiliary courseware being needed to show simultaneously at this time
(such as laptop) is connect with video processor, and one of the signal input sources as video processor.Laptop
On show auxiliary courseware content, pass through control video processor, increase display auxiliary courseware teaching picture, without close
The picture or original any picture having shown that main control device provides.
Above-mentioned teaching picture includes: lantern slide courseware, instructional video, teaching picture, teaching board.Wherein, lantern slide class
Part, instructional video and teaching picture can be copied in advance in laptop and be opened, when needed at Switch Video
The video output of device is managed, to show lantern slide courseware, instructional video or teaching picture.Other above-mentioned electronic equipments can also be
Another image capture device, such as camera, camera is towards blackboard and shoots the writing on the blackboard of teacher and can control when needed
Video processor processed shows the writing on the blackboard content of teacher.For example, the picture of teaching display equipment is divided into four parts, bottom shows qin
Key entity part, middle part show key virtual part, and upper left-hand shows music theory parsing picture or DAW software picture, and top is right
Side shows the lantern slide courseware of laptop or the teaching board of camera production.
Below with reference to the first embodiment for the music teaching demenstration method that Fig. 6 the present invention is described in detail provides.The present embodiment
It can be used in implementing above-mentioned music teaching demo system, be mainly used in music and musical instrument teaching, teacher can be played an instrument
When finger movement and performance movement virtual screen be broadcast to student so that each student can be set by teaching demonstration
The standby finger movement for clearly watching teacher and the key pressed are conducive to student referring to study, improve music teaching condition,
It is widely used in the scenes such as multi-media classroom, electric steel classroom, the classroom MIDI.
As shown in fig. 6, music teaching demenstration method provided in this embodiment includes the following steps:
Step 100, the virtual screen at teaching instrument playing position is generated.
Teaching musical instrument in the present embodiment is by taking piano as an example.For piano equipped with MIDI trigger, main control device is (such as personal
Computer) it is connect with piano, and the type (i.e. piano) of musical instrument is identified in advance, then generate the performance position of piano, i.e. qin
The virtual screen at key position.Wherein, teaching musical instrument include one or more of: electric crying musical instrument, chord crying musical instrument, aerophone,
Film crying musical instrument.
Step 200, the midi signal generated when playing is obtained in real time, and phase is shown on virtual screen according to midi signal
The performance movement answered.
MIDI trigger can generate midi signal when playing, and midi signal includes the instruction such as note, control parameter, be used for
Record music.Main control device gets midi signal in real time, identifies the key played according to midi signal, and in the void of generation
The key played is shown on quasi-ization face.
Step 300, the real image at the instrument playing position of acquisition teaching in real time.
Piano upper lifting has image capture device, such as a video camera, video camera be aligned the key part of piano entity into
Row shooting, to acquire the real image of key part.
Step 400, virtual screen and/or real image are shown in the form of split screen or picture-in-picture.
The key virtual screen of generation is sent to video processor by main control device, and video camera also will real-time collected qin
Key solid images are sent to video processor, and as the signal input sources of video processor, video processor handles multiple signals
The data that source is sent, and the input of above-mentioned multiple signals is converted into split screen display available or picture-in-picture, it is then output to teaching demonstration and sets
It is standby.Teaching demonstration equipment can be the high-clear display with large screen, and student can be watched by high-clear display
Hand motion when teacher's piano and the key pressed.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of music teaching demo system characterized by comprising
Teaching musical instrument, equipped with MIDI trigger, the MIDI trigger is connect with main control device, is generated when for that will play
Midi signal be sent to the main control device；
The main control device, for generating the virtual screen at the teaching instrument playing position, according to the midi signal in institute
It states and shows corresponding performance movement on virtual screen, and the virtual screen is sent to video processor；
Image capture device for acquiring the real image at the teaching instrument playing position in real time, and is sent to the video
Processor；
The video processor, for the virtual screen received and/or real image to be sent to teaching demonstration equipment.
2. music teaching demo system as described in claim 1, which is characterized in that the teaching demonstration equipment includes:
First display equipment, is connect, for receiving and playing the view with the video processor by digital visual interface
The image that frequency processor is sent.
3. music teaching demo system as claimed in claim 1 or 2, which is characterized in that the main control device further includes being used for
The sound acquisition module played sound and performance sound is sent to the video processor is generated according to the midi signal,
And/or the music teaching demo system further include for acquire in real time play sound and will play sound be sent to it is described
The sound collection equipment of video processor；Also,
The performance sound that the video processor is also used to receive is sent to the teaching demonstration equipment and plays out.
4. music teaching demo system as claimed in claim 3, which is characterized in that the teaching demonstration equipment includes:
Second display equipment, remotely connect with the video processor, for receiving video processor described in simultaneously remote playing
The image and sound sent.
5. music teaching demo system as described in claim 1, which is characterized in that the main control device further include: music theory letter
Generation module is ceased, for identifying the note or chord of performance according to the midi signal, music theory is generated and parses picture, and send
To video processor.
6. the music teaching demo system as described in any one of claim 1-2,4-5, which is characterized in that the video processing
The multiway images received are converted to the form of split screen or picture-in-picture and are sent to the teaching demonstration equipment by device.
7. music teaching demo system as claimed in claim 6, which is characterized in that the video processor is at splicing video
Device is managed, the splicing video processor passes through CATV line transmission vision signal.
8. music teaching demo system as described in claim 1, which is characterized in that the teaching musical instrument is turned by MIDI-USB
The midi signal generated when wiring or USB data line or wireless MIDI transceiver are by performance is sent to the main control device.
9. music teaching demo system as described in claim 1, which is characterized in that the system also includes hanging apparatus, institutes
State the sliding rail that hanging apparatus includes support rod component and is slidably mounted on the support rod component, the sliding rail installation
In the side of the teaching musical instrument, described image acquisition equipment is slidably mounted on the sliding rail, and towards the teaching
The performance position of musical instrument.
10. a kind of music teaching demenstration method characterized by comprising
Generate the virtual screen at teaching instrument playing position；
The midi signal generated when playing is obtained in real time, is shown on the virtual screen according to the midi signal corresponding
Performance movement；
The real image at the teaching instrument playing position is acquired in real time；
The virtual screen and/or the real image are shown in the form of split screen or picture-in-picture.
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| CN110517168A (en) * | 2019-07-19 | 2019-11-29 | 森兰信息科技（上海）有限公司 | Piano sync instruction method, system and device based on SDI device |
| CN110767031A (en) * | 2019-10-28 | 2020-02-07 | 武强嘉华乐器有限公司 | Music teaching platform of VR technique |
| 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 |
| CN113658481A (en) * | 2021-08-06 | 2021-11-16 | 安徽多效信息科技有限公司 | Piano playing identification method based on deep learning |
| CN114022644A (en) * | 2021-11-05 | 2022-02-08 | 华中师范大学 | Bit selection method for multiple virtualized bodies in teaching space |
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