CN106128215B - A kind of piano automatic Playing tutoring system - Google Patents

Abstract

The invention discloses a piano automatic performance teaching system in the technical field of piano teaching, which includes a bonding board, two sets of splints are arranged on the outer wall of the bonding board, a chute is opened on the body of the bonding board, and the sliding The inner cavity of the groove is provided with two groups of sliders, the splints are connected with the sliders by screws, a casing is arranged between the two groups of splints, and a display screen is arranged on the outer wall of the casing, and the left and right sides at the bottom of the display screen are The sides are respectively provided with a control board and a sound hole, the bottom of the inner cavity of the shell is provided with a speaker, and the left side of the speaker is provided with a control device, the control device includes a single-chip microcomputer, and the single-chip electromechanical two-way connection data conversion module The electrical input of the data conversion module is connected to the sound collection module, and the input end of the sound collection module is electrically connected to the output end of the microphone. This device has strong practicability, saves teaching funds, and is suitable for popularization.

Description

A piano automatic performance teaching system

technical field

The invention relates to the technical field of piano teaching, in particular to a piano automatic performance teaching system.

Background technique

With existing pianos, it is difficult for players to improve their performance skills, and it takes a long time to learn, which consumes too much energy and time. During the playing process, the teacher needs to guide and correct mistakes many times, and the teacher's energy is limited, so it is difficult to Guidance, for error correction, also mainly depends on the subjective judgment of the teacher, there is uncertainty in error correction, that is, whether the playing is correct, and there is no quantifiable guidance or comparison. This is also the reason for the high price of tutors who train piano performances. We need a device that can record our own performances and then be able to prescribe drugs. An automatic performance system is installed in the piano, and the automatic performance system performs any one or a combination of the following steps: 1. Play the music more than once in the normal way as a demonstration; 2. Play according to the way of rising or falling The music is used as a guide for teaching; 3. Play a part of the music, and the player plays another part of the music as an ensemble demonstration; in the preferred solution, it also includes the step of playing the built-in accompaniment music by the automatic playing system, the device The structure is complex and the music resources are few. Therefore, we propose a piano automatic performance teaching system.

Contents of the invention

The purpose of the present invention is to provide a kind of piano automatic performance teaching system, to solve the present piano teaching method proposed in the above-mentioned background technology mainly rely on the teacher's subjective judgment, there is uncertainty of error correction, that is, whether the playing is correct, lack of ability Quantitative guidance or comparison questions.

In order to achieve the above object, the present invention provides the following technical solutions: a piano automatic playing teaching system, comprising a bonding board, two groups of splints are arranged on the outer wall of the bonding board, and a chute is provided on the body of the bonding board, The inner cavity of the chute is provided with two groups of sliders, the splints are connected with the sliders by screws, a casing is arranged between the two groups of splints, a display screen is arranged on the outer wall of the casing, and the bottom of the display screen is The left and right sides of the housing are respectively provided with a control board and a sound hole, the bottom of the inner cavity of the shell is provided with a speaker, and the left side of the speaker is provided with a control device, the control device includes a single-chip microcomputer, and the single-chip electromechanical two-way connection A data conversion module, the electrical input of the data conversion module is connected to the sound collection module, the input end of the sound collection module is electrically connected to the output end of the microphone, and the electrical output of the single-chip microcomputer is respectively connected to the storage module and the information collection module. The output end of the storage module is electrically connected to the input end of the data port, the output end of the information collection module is electrically connected to the input end of the comparison module, and the output of the data conversion module is electrically connected to the loudspeaker and the envelope generation module respectively. The output terminal of the envelope generation module is electrically connected to the line spectrum linearization module, the output terminal of the line spectrum linearization module is electrically connected to the input terminal of the display, the electrical input of the single chip is connected to the input module, and the input module The electrical input is connected to the control board.

Preferably, electric fans and ventilation windows are respectively provided on the left and right side walls of the casing, and the locations of the electric fans and ventilation windows are on the same level.

Preferably, brackets are connected to the left and right outer walls of the loudspeaker, and the brackets are connected to the bottom of the inner chamber of the housing through screws.

Preferably, the right side wall of the splint on the left side and the left side wall of the splint on the right side are both provided with friction stripes, and the outer wall of the housing is provided with rubber gaskets matching the friction stripes.

Preferably, the data port is a USB port or a TF storage port.

Compared with the prior art, the beneficial effect of the present invention is: the automatic piano performance teaching system bonds the device to the piano or a place close to the piano through the bonding board, the bonding method is simple, the practicability is strong, and the bonding board The outer wall is connected with two sets of splints through the chute, and the splint is connected with the slider in the inner cavity of the chute through screws. When the screw and the slider are fastened, the splint is fixed, and the objects sandwiched between the two sets of splints are clamped. This clamping method is suitable for objects of various widths, and has wide applicability. The clamping surface of the splint is provided with friction stripes to increase the friction with the clamped object, making the clamping more stable. The inner cavity of the shell is equipped with a speaker , so that the recorded music can be played, and the functionality of the device is expanded. The collected music is compared with the stored music, and the difference between the two is displayed through the display screen, which is more intuitive and vivid. The device is practical and saves teaching. Funds, suitable for promotion.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural schematic diagram of bonding plate of the present invention;

Fig. 3 is a schematic diagram of the structure of the inner cavity of the shell of the present invention;

Fig. 4 is a functional block diagram of the control device of the present invention;

Fig. 5 is a diagram showing the steps of using the control device of the present invention.

In the figure: 1 bonding board, 2 splint, 3 shell, 4 display screen, 5 control board, 6 sound release hole, 7 chute, 8 speaker, 9 control device, 10 single-chip microcomputer, 11 data conversion module, 12 sound collection module , 13 microphones, 14 storage modules, 15 data ports, 16 information collection modules, 17 comparison modules, 18 envelope generation modules, 19 line spectrum linearization modules, 20 display, 21 input modules.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-5, the present invention provides a kind of technical scheme: a kind of piano automatic performance teaching system, comprises bonding plate 1, and the outer wall of described bonding plate 1 is provided with two groups of splints 2, and described bonding plate 1 The body of the body has a chute 7, the inner cavity of the chute 7 is provided with two groups of sliders, the splint 2 is connected with the slider by screws, and a casing 3 is arranged between the two groups of splints 2, and the casing The outer wall of 3 is provided with a display screen 4, and the left and right sides of the bottom of the display screen 4 are respectively provided with a control board 5 and a sound release hole 6, and the bottom of the inner cavity of the shell 3 is provided with a speaker 8, and the left side of the speaker 8 The side is provided with a control device 9, the control device 9 includes a single-chip microcomputer 10, the single-chip microcomputer 10 is electrically bidirectionally connected to a data conversion module 11, and the data conversion module 11 is electrically input and connected to a sound collection module 12, and the sound collection module 12 The input end of the single chip microcomputer 10 is electrically connected to the output end of the microphone 13, and the output end of the single-chip microcomputer 10 is electrically connected to the storage module 14 and the information collection module 16 respectively, and the output end of the storage module 14 is electrically connected to the input end of the data port 15. The output end of the information collection module 16 is electrically connected to the input end of the comparison module 17, and the data conversion module 11 is electrically connected to the loudspeaker 8 and the envelope generation module 18 respectively, and the output end of the envelope generation module 18 is electrically connected. connected to the line spectrum linearization module 19, the output end of the line spectrum linearization module 19 is electrically connected to the input end of the display 20, the electrical input of the single chip microcomputer 10 is connected to the input module 21, and the electrical input of the input module 21 is connected to control panel5.

Wherein, the left and right side walls of the housing 3 are respectively provided with an electric fan and a ventilation window, and the positions of the electric fan and the ventilation window are on the same horizontal plane, and the interaction between the electric fan and the ventilation window makes the heat generated by work discharged through the ventilation window. The left and right outer walls of the loudspeaker 8 are all connected with a bracket, and the bracket is connected with the bottom of the inner cavity of the shell 3 by screws, and the structure of the loudspeaker 8 is more stable during use by connecting the bracket with the shell 3. The right side wall of the splint 2 on the left side and The left side wall of the splint 2 on the right is provided with friction stripes, and the outer wall of the housing 3 is provided with rubber gaskets that are compatible with the friction stripes. The interaction between the friction stripes and the rubber gasket increases the friction between the casing 3 and the splint. The friction force between 2 makes the clamping between the shell 3 and the splint 2 more firm. The data port 15 is a USB port or a TF storage port. The data port 15 is convenient for backing up the recorded music and increasing the efficiency of learning.

Working principle: stick the adhesive plate 1 on the piano frame, adjust the angle through the action between the screw on the splint 2 and the slider in the inner cavity of the chute 7, and the control board 5 controls the circuit of the device, the playback progress, Some processes such as recording and playback functions, when starting recording, microphone 13 collects the repertoire played by the students, and the collected sound is collected by the sound collection module 12, and the collected sound is converted into computer language by the data conversion module 11, and passed through the single chip microcomputer 10. Distribution, the voice after converting the computer language is passed to the comparison module 17 through the information collection module 16, and the comparison module 17 compares the collected information with the pre-stored information, and the pre-stored information is called out from the storage module 14 and collected. For comparison, the comparison result is output to the loudspeaker 8 and the envelope generation module 18 through the data conversion module 11, and the envelope generation module 18 transmits the collected data to the line spectrum conversion module 19, and the line spectrum conversion module 19 will The received data is converted into line spectrum data and displayed through the display 20, so that the comparison between the results displayed through the speaker 8 and the display 20 is more vivid and specific, and learners can find problems more clearly.

A method for using a piano automatic performance teaching system has the following steps:

S1: Turn on the switch, play the music, the microphone 13 collects the music, and convert the music into information data through the sound collection module 12 and the data conversion module 11;

S2: save the information data through the storage module 14, and download and save the data through the data port 15;

S3: compare the saved information data with the existing standard music files in the storage module 14, and analyze the comparison results;

S4: If there is a deviation between the result and the standard score, the comparison result is converted into a line spectrum by the envelope generation module 18 and the line spectrum linearization module 19 and displayed on the display 20, and the standard file is played through the speaker 6, if the saved Information has no difference with the standard music file in the storage module 14, then directly skip;

S5: If the work is finished, the device will automatically stop working. If there is still a deviation in the comparison result, it will be switched back to playing, and the above actions will be repeated.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of piano automatic Playing tutoring system, including adhesive sheet (1), it is characterised in that：The outer wall of the adhesive sheet (1) is set Two groups of clamping plates (2) are equipped with, the ontology of the adhesive sheet (1) is provided with sliding slot (7), and the inner cavity of the sliding slot (7) is provided with two groups of cunnings Block, the clamping plate (2) are connect by screw with sliding block, and shell (3), the shell (3) are provided between clamping plate (2) described in two groups Outer wall be provided with display screen (4), be respectively arranged with control panel (5) and louver at left and right sides of display screen (4) bottom (6), the intracavity bottom of the shell (3) is provided with loud speaker (8), and control device is provided on the left of the loud speaker (8) (9), the control device (9) includes microcontroller (10), and the microcontroller (10) is electrically bi-directionally connected data conversion module (11), Electrically input connects sound acquisition module (12), the input terminal of the sound acquisition module (12) to the data conversion module (11) It is electrically connected the output end of microphone (13), the microcontroller (10) respectively electrically adopt by output connection memory module (14) and information Collect module (16), the output end of the memory module (14) is electrically connected the input terminal of data port (15), described information acquisition The output end of module (16) is electrically connected the input terminal of contrast module (17), the data conversion module (11) electrically output respectively Loud speaker (8) and envelope generation module (18) are connected, the output end of the envelope generation module (18) is electrically connected line spectrum Line module (19), the output end of the line spectrum line module (19) are electrically connected the input terminal of display (20), the monolithic Electrically input connection input module (21), the input module (21) electrically input connection control panel (5) to machine (10).

2. a kind of piano automatic Playing tutoring system according to claim 1, it is characterised in that：A left side for the shell (3) Right side wall is respectively arranged with electric fan and vent window, and the position of electric fan and vent window is in same level.

3. a kind of piano automatic Playing tutoring system according to claim 1, it is characterised in that：The loud speaker (8) Left and right outer wall is respectively connected with holder, and holder is connect by screw with the bottom of shell (3) inner cavity.

4. a kind of piano automatic Playing tutoring system according to claim 1, it is characterised in that：The left side clamping plate (2) The left side wall of right side wall and the right side clamping plate (2) be both provided with friction striped, the outer wall of the shell (3) is provided with and rubs The compatible rubber sheet gasket of rub piece line.

5. a kind of piano automatic Playing tutoring system according to claim 1, it is characterised in that：The data port (15) For USB port or TF storage ports.