CN105895066A - Digitalized piano capable of network demonstration piano performing and real time video teaching - Google Patents
Digitalized piano capable of network demonstration piano performing and real time video teaching Download PDFInfo
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Abstract
A digitalized piano is disclosed and capable of network demonstration piano performing and real time video teaching. The digitalized piano comprises a mechanical piano, a computer host, a video information collection module, an audio information collection module, a key movement information collection module, a footboard movement information collection module, a key information and footboard information display screen, a touch display screen, a network data transmission module and a loudspeaker module. The computer host is connected with all modules via a USB bus. Via use of the digitalized piano disclosed in the invention, an entity teaching mode is replaced with a home self-learning mode and a network remote teacher guidance learning mode; piano learning demand in areas where high-quality piano teacher resources are not available can be met, and demand of users who hope to learn piano playing at home at low cost can be met.
Description
Technical field
The present invention relates to a kind of musical instrument, network can be carried out more particularly to one and play demonstration and real-time video
The digitized piano of teaching.
Background technology
In Chinese patent CN 203422918 U and CN 104464704 A, describe one there is teaching
The automatic Playing intelligence piano of function, its recoding unit is to be obtained by sensor data acquisition, is not
Recording, but key motion information acquisition storing.And utilize the playback function of automatic Playing for learning,
This is infeasible in the teaching process of reality.The study of piano performance, is that learner passes through auditory discrimination,
Then improve hands the performance of key is controlled, constantly circulate feedback, finally improve performance level, as
Fruit utilizes sound storage and playback to carry out intensive training, and its core is sound when sound when playing and playback
Guarantee information concordance as far as possible is wanted acoustically.Can guarantee that the highest conforming method is entered exactly at present
Row stereophonic recording, and the machinery of automatic Playing is fine in theory, but be substantially subjected to frictional resistance,
Mechanical precision, all parts of qin have the impacts such as different conditions at different time, and the sound of playback compares recording
Playback, the distortion factor is the biggest, it is impossible to meet teaching and the needs learnt by oneself.Automatic Playing be generally used for hotel,
The piano transformation put in coffee shop, also can have the sound that piano itself sends when not having player, this
Under scene, the distortion factor is also acceptable relatively greatly, and in teaching and self-learning process, this distortion factor is big
Cause and there is no practical value.
Can determine that with above-mentioned information, all patents being used for teaching in the way of machinery reduction playing information,
The purpose of teaching can not be reached in reality.
Present invention employs dual microphone is that user carries out stereophony recording, and adds speaker
Module, carries out the stereo playback of high-fidelity, and providing for the Web-based instruction and self-study most has field research meaning
Technological means, it is ensured that the effect of teaching.
Some patents also refer to utilize photographic head to carry out long-distance video teaching, but imparts knowledge to students for piano performance,
The utilization of pedal is critically important content, is described as the soul of piano performance, so without using shooting
Head shoots the movable information of pedal, then cannot complete the piano performance teaching of specialty.The present invention uses three
Group photographic head shoots simultaneously, includes the shooting of soft pedal, it is possible to complete network in reality
The piano performance demonstration of specialty and teaching.
Summary of the invention
The invention provides a kind of network that can carry out and play demonstration and the digitized piano of real-time video teaching,
Overcome the defect of above-mentioned prior art.
One aspect of the present invention it is possible to carry out network to play demonstration and the digitized of real-time video teaching
Piano includes: mechanical piano；It is arranged on the main frame within mechanical piano, in described main frame
Being equipped with software, this software includes recording mode and real time education pattern；Video information acquisition module, is used for adopting
Collect the screen information of player and the video information transmission collected storage are arrived described main frame；Sound
Frequently information acquisition module, for gathering the audio-frequency information played and by the audio information transmissions collected and store
To described main frame；
Key motion information acquisition module, for the movable information gathering key the described key that will collect
Motion information transmission and store to described main frame；
Pedal travel information acquisition module, for the movable information gathering pedal the described pedal that will collect
Motion information transmission and store to described main frame；Key information and pedal information display screen, be used for
Display key information and pedal information；Touching display screen, user can select on described touch display screen
Recording mode or real time education pattern；Network data transmission module, between different digitized pianos
Transmission data；Loudspeaker module, is used for playing audio-frequency information；Wherein, described main frame passes through USB
Bus and described video information acquisition module, audio-frequency information acquisition module, key motion information acquisition module,
Pedal travel information acquisition module, key information and pedal information display screen, touch display screen, network data
Transport module, loudspeaker module are connected.
According to other aspects of the invention, still further provides following favourable aspect:
--video information acquisition module is made up of the first photographic head, second camera and the 3rd photographic head；Described
First photographic head is arranged on main display top, can carry out real-time facial video exchange；Described second takes the photograph
As head is arranged on piano right plate side, and connect with a rotating support, be used for shooting different angle
The playing procedure of degree；Described 3rd photographic head is arranged on above lower side panel, for shooting the action of foot pedal.
--described audio-frequency information acquisition module is made up of the first mike and second microphone；Described first Mike
Wind is arranged on left side, and described second microphone is arranged on right side, described first mike and described second Mike
Both wind carries out two-channel stereo recording together.
--described key motion information acquisition module includes multiple photoelectric sensor, for gathering the motion of key
Information, the movable information of key comprises key motion sequential, key motion duration and key motion dynamics.
--described pedal travel information acquisition module includes multiple photoelectric sensor, for gathering the motion of pedal
Information, the movable information of pedal comprises pedal travel sequential, pedal travel duration and pedal travel dynamics.
--described touch display screen is arranged on the center of music stand.
--described key information and pedal information display screen are made up of multiple LED dot matrix display screens.
--described loudspeaker module includes first group of speaker and second group of speaker, described first group of speaker
Being arranged on the left side of described mechanical piano, described second group of speaker is arranged on the right side of described mechanical piano.
Above-mentioned various aspects of the invention can carry out arbitrary group in the case of without departing from the scope of the invention
Close or combine.
This patent mainly utilizes multiple piano renovation technique, specially for the purpose of ensureing learning effect, to be in
Learn by oneself and the learning style of network remote teacher's guidance substitutes entity teaching method, there is no high-quality with satisfied China
The piano study demand of piano teacher Resources Area, and wish lower cost be in association piano performance user
Demand.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of the digitized piano according to the present invention；
Fig. 2 is the composition schematic diagram of the network Piano Teaching system according to the present invention；
Fig. 3 is the axonometric chart of the digitized piano shown in Fig. 1, wherein particularly illustrates video information and gathers mould
Block, audio-frequency information acquisition module, loudspeaker module, touch display screen and key information and pedal information show
Display screen；
Fig. 4 is the axonometric chart of the digitized piano shown in Fig. 1, wherein particularly illustrates main frame, qin
Key motion information acquisition module c1 and pedal travel information acquisition module c2.
Detailed description of the invention
Below, by combining accompanying drawing, the digitized piano of present patent application is described in detail.
As it is shown in figure 1, illustrated therein is the composition schematic diagram of the digitized piano according to the present invention.Such as Fig. 1
Shown in digitized piano, including mechanical piano and main frame, main frame is total by USB
Line and video information acquisition module, audio-frequency information acquisition module, key motion information acquisition module, pedal fortune
Dynamic information acquisition module, key information and pedal information display screen, touch display screen, network data transmission mould
Block, loudspeaker module are connected, and constitute digitized piano described herein.Described network data transmission
Module is for transmitting data between two described digitized pianos.
Multiple digitized pianos interconnect, and constitute network Piano Teaching system, as shown in Figure 2.
Being described in detail above-mentioned modules below, the detailed view of these modules is at Fig. 3 and Tu
Shown in 4.
As shown in Figure 3, video information acquisition module is by the first photographic head a1, second camera a2 and
Three photographic head a3 compositions.First photographic head a1 is arranged on main display top, can carry out real-time face
Video exchanges.Second camera a2 is arranged on piano right plate side, and connects with a rotating support
Connect, for shooting the playing procedure of different angles.3rd photographic head a3 is arranged on above lower side panel, is used for clapping
Take the photograph the action of foot pedal.In use, taken the photograph by above-mentioned three of this video information acquisition module
As head gathers overall, the facial and video information of step pedal that user plays, and the information collected is led to
Cross usb bus transmit and store main frame.Audio-frequency information acquisition module by the first mike b1 and
Second microphone b2 forms；First mike b1 is arranged on left side, and second microphone b2 is arranged on right side,
First mike b1 carries out two-channel stereo recording together with second microphone b2.In the process of use
In, audio-frequency information acquisition module collects the audio-frequency information at scene, and the audio-frequency information collected is passed through USB
Bus transfer also stores main frame.Key information and pedal information display screen d2 are by multiple LED points
Battle array display screen composition, is used for showing key information and pedal information.Touch display screen d1 and be arranged on music stand
Center.Loudspeaker module includes first group of speaker e1 and second group of speaker e2, raises one's voice for first group
Device e1 is arranged on the left side of described mechanical piano, and second group of speaker e2 is arranged on the right side of described mechanical piano
Side.
As shown in Figure 4, key motion information acquisition module c1 includes multiple photoelectric sensor, is used for gathering qin
The movable information of key, the movable information of key comprises key motion sequential, key motion duration and key motion
Dynamics.By the motion information transmission of the key collected and described main frame is stored by usb bus.
Pedal travel information acquisition module c2 includes multiple photoelectric sensor, for gathering the movable information of pedal, steps on
The movable information of plate comprises pedal travel sequential, pedal travel duration and pedal travel dynamics.Total by USB
Motion information transmission the storage of the pedal collected are arrived main frame by line.Main frame f1 is arranged on
Inside mechanical piano, and being built-in with software, this software includes recording mode and real time education pattern, user
Recording mode or real time education pattern can be selected on described touch display screen.
Below the operating process under each operator scheme of the digitized piano according to the application is described.
1, after recording mode starts, user's playing music, the first photographic head a1, second camera a2 and
Three photographic head a3, the first mike b1, second microphone b2, key motion information acquisition module c1, step on
After the data information acquisition that user is played by plate motion information acquisition module c2, by network data transmission module
After connecting the Internet, upload onto the server and store.Student or other users can touch on display screen
By the softward interview the Internet of display, finding this item data, locally downloading play back, video passes through
Display screen is play, and mainly watches the action message of arm, wrist, hand-type；Audio frequency is broadcast by loudspeaker module
Put, mainly listen the demonstration sound of reality, the most do not use increasingly complex automatic playing system to play back,
Because automatic Playing is to use mechanical driving device to make piano key move, obtain again the result of sounding, as
Really the qin of teacher differs greatly in the case of tuning or other environment are different with the qin of student, then by certainly
The dynamic sound effect playing playback wants the effect being illustrative of to have big difference with teacher, does not reaches teaching request；
Key movable information is play by key information display screen, with rectangle along with moving that certain speed falls downwards
Draw and represent the key that will play, the rectangular long duration pinning key that represents is green by rectangular color
Color, yellow, redness, represent the light, moderate, firmly of the dynamics played respectively.Pedal information is with two feet
Fall downwards with the simplification shape of a connecting line segment, represent the sequential stepped on and lift of pedal.
2, after real time education pattern starts, user A is teacher, and user B is student, and any user is soft
Set up the Internet in part to connect, offer the virtual room of real time education, after another user enters, can start
Photographic head and mike, user is touching on display screen d1 it can be seen that the picture of three photographic head of oneself respectively
The picture of three photographic head of face and the other side, hears the sound of the other side.User A can click on recording, then qin
Key motion information acquisition module c1, pedal travel information acquisition module c2 start to gather the fortune of key and pedal
Dynamic information, user A clicks on after terminating to record, selects to transmit, then the data recorded are sent by the Internet
In the software of user B, after B receives, select playback, it is possible to show in key information and pedal information
Watching in display screen d2 and and then play, after user B plays, software is transported according to the key in user's B piano
The data that dynamic information acquisition module c1, pedal travel information acquisition module c2 gather, with the data of user A
Doing comparing calculation and mark, the project of contrast scoring has accuracy in pitch, rhythm and dynamics, closer to the data of A,
Then the score of user B is the highest.
It should be understood that above-described embodiment is illustrative and not restrictive.Any to above-described embodiment
The combination that carries out, combine or revise and fall within scope of the present application within.
Claims (10)
1. a digitized piano, it is possible to carry out network and play demonstration and real-time video teaching, described digitized
Piano includes:
Mechanical piano；
Being arranged on the main frame within mechanical piano, described main frame is built-in with software, this software
Including recording mode and real time education pattern；
Video information acquisition module, for gathering the screen information of player and the video information collected being passed
Described main frame is arrived in defeated and storage；
Audio-frequency information acquisition module, for gathering the audio-frequency information played the audio information transmissions that will collect
And store described main frame；
Key motion information acquisition module, for the movable information gathering key the described key that will collect
Motion information transmission and store to described main frame；
Pedal travel information acquisition module, for the movable information gathering pedal the described pedal that will collect
Motion information transmission and store to described main frame；
Key information and pedal information display screen, be used for showing key information and pedal information；
Touching display screen, user can select recording mode or real time education mould on described touch display screen
Formula；
Network data transmission module, for transmitting data between different described digitized pianos；
Loudspeaker module, is used for playing audio-frequency information；
Wherein, described main frame is by usb bus and described video information acquisition module, audio-frequency information
Acquisition module, key motion information acquisition module, pedal travel information acquisition module, key information and pedal
Information display screen, touch display screen, network data transmission module, loudspeaker module are connected.
Digitized piano the most according to claim 1, it is characterised in that: video information acquisition module by
First photographic head (a1), second camera (a2) and the 3rd photographic head (a3) composition；Described first shooting
Head (a1) is arranged on main display top, can carry out real-time facial video exchange；Described second shooting
Head (a2) is arranged on piano right plate side, and connects with a rotating support, for shooting not
Playing procedure with angle；Described 3rd photographic head (a3) is arranged on above lower side panel, is used for shooting foot and steps on
The action of pedal.
Digitized piano the most according to claim 1, it is characterised in that: described audio-frequency information gathers mould
Block is made up of the first mike (b1) and second microphone (b2)；Described first mike (b1) is installed
In left side, described second microphone (b2) is arranged on right side, described first mike (b1) and described the
Both two mikes (b2) carry out two-channel stereo recording together.
Digitized piano the most according to claim 1, it is characterised in that: described key movable information is adopted
Collection module (c1) includes multiple photoelectric sensor, for gathering the movable information of key, and the motion letter of key
Breath comprises key motion sequential, key motion duration and key motion dynamics.
Digitized piano the most according to claim 1, it is characterised in that: described pedal travel information is adopted
Collection module (c2) includes multiple photoelectric sensor, for gathering the movable information of pedal, and the motion letter of pedal
Breath comprises pedal travel sequential, pedal travel duration and pedal travel dynamics.
Digitized piano the most according to claim 1, it is characterised in that: described touch display screen (d1)
It is arranged on the center of music stand.
Digitized piano the most according to claim 1, it is characterised in that: described key information and pedal
Information display screen (d2) is made up of multiple LED dot matrix display screens.
Digitized piano the most according to claim 1, it is characterised in that: described loudspeaker module includes
First group of speaker (e1) and second group of speaker (e2), described first group of speaker (e1) is arranged on institute
Stating the left side of mechanical piano, described second group of speaker (e2) is arranged on the right side of described mechanical piano.
9. a digitized piano, it is possible to carry out network and play demonstration and real-time video teaching, described digitized
Piano includes:
Mechanical piano；
Being arranged on the main frame within mechanical piano, described main frame is built-in with software, this software
Including recording mode and real time education pattern；
Video information acquisition module, for gathering the screen information of player and the video information collected being passed
Described main frame is arrived in defeated and storage, and video information acquisition module is by the first photographic head (a1), the second shooting
Head (a2) and the 3rd photographic head (a3) composition；Described first photographic head (a1) is arranged on main display
Portion, can carry out real-time facial video exchange；Described second camera (a2) is arranged on piano right plate
Side, and connect with a rotating support, for shooting the playing procedure of different angles；Described
Three photographic head (a3) are arranged on above lower side panel, for shooting the action of foot pedal；
Audio-frequency information acquisition module, for gathering the audio-frequency information played the audio information transmissions that will collect
And storing described main frame, described audio-frequency information acquisition module is by the first mike (b1) and second
Mike (b2) forms；Described first mike (b1) is arranged on left side, described second microphone (b2)
Carry out double together with being arranged on both right side, described first mike (b1) and described second microphone (b2)
Channel stereo is recorded；
Key motion information acquisition module, for the movable information gathering key the described key that will collect
Motion information transmission and store to described main frame, described key motion information acquisition module (c1)
Including multiple photoelectric sensors, for gathering the movable information of key, the movable information of key comprises key fortune
Dynamic sequential, key motion duration and key motion dynamics；
Pedal travel information acquisition module, for the movable information gathering pedal the described pedal that will collect
Motion information transmission and store to described main frame, described pedal travel information acquisition module (c2)
Including multiple photoelectric sensors, for gathering the movable information of pedal, the movable information of pedal comprises pedal fortune
Dynamic sequential, pedal travel duration and pedal travel dynamics；
Key information and pedal information display screen, be used for showing key information and pedal information, and described key is believed
Breath and pedal information display screen (d2) are made up of multiple LED dot matrix display screens；
Touching display screen, user can select recording mode or real time education mould on described touch display screen
Formula, described touch display screen (d1) is arranged on the center of music stand；
Network data transmission module, for transmitting data between different described digitized pianos；
Loudspeaker module, is used for playing audio-frequency information, and described loudspeaker module includes first group of speaker (e1)
With second group of speaker (e2), described first group of speaker (e1) is arranged on the left side of described mechanical piano,
Described second group of speaker (e2) is arranged on the right side of described mechanical piano；
Wherein, described main frame is by usb bus and described video information acquisition module, audio-frequency information
Acquisition module, key motion information acquisition module, pedal travel information acquisition module, key information and pedal
Information display screen, touch display screen, network data transmission module, loudspeaker module are connected.
10. a network Piano Teaching system, including two or more as arbitrary in claim 1 to 9
Digitized piano described in Xiang.
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| CN201510485764.9A CN105895066A (en) | 2015-08-10 | 2015-08-10 | Digitalized piano capable of network demonstration piano performing and real time video teaching |
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