CN201465339U - Assistant teaching instrument for electronic musical instrument - Google Patents
Assistant teaching instrument for electronic musical instrument Download PDFInfo
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- CN201465339U CN201465339U CN2009200870593U CN200920087059U CN201465339U CN 201465339 U CN201465339 U CN 201465339U CN 2009200870593 U CN2009200870593 U CN 2009200870593U CN 200920087059 U CN200920087059 U CN 200920087059U CN 201465339 U CN201465339 U CN 201465339U
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- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of the musical instrument, in particular to an assistant teaching instrument for an electronic musical instrument, which comprises a main control circuit, a numeral notation and staff notehead display circuit, an interface circuit, a MIDI or USB interface of the electronic musical instrument, and a power supply, wherein the main control circuit is respectively and electrically connected with the numeral notation and staff notehead display circuit and the interface circuit, the interface circuit is electrically connected with the MIDI or USB interface of the electronic musical instrument, and the power supply respectively supplies power to the main control circuit and the numeral notation and staff notehead display circuit. The utility model is based on the common musical instrument, through accessing the MIDI or USB interface of the electronic musical instrument to the assistant teaching instrument, the utility model can improve the teaching function of the electronic musical instrument, and facilitate the learner better understanding and learning the knowledges of the numeral notation and staff and the relation thereof though combining the electronic musical instrument.
Description
Technical Field
The utility model relates to a technical field of music teaching aid especially relates to an electronic musical instrument assists teaching instrument.
Background
Traditional basic music theory teaching is boring, learners are not easy to master music knowledge and skills, and the learners can influence the improvement of music practice ability of the learners, so that the thinking of music is rigid, and the learners lose the interest of learning music. Along with the development of social economy, electronic musical instruments enter families and schools in China to be popularized, are introduced into teaching, but are greatly limited in teaching effect, and the existing common electronic musical instruments are not teaching devices, are musical instruments, do not have the characteristics of teaching music and are not visual, vivid, flexible and mobile. Therefore, how to add the teaching function of the electronic musical instrument becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electronic musical instrument assists teaching instrument to realize that music theory and teaching are synchronous, perfect electronic musical instrument's teaching function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the main control circuit is respectively and electrically connected with the numbered musical notation and staff symbol head display circuit and the interface circuit, the interface circuit is electrically connected with the MIDI or USB interface of the electronic musical instrument, and the power supply respectively provides power for the main control circuit and the numbered musical notation and staff symbol head display circuit.
The main control circuit comprises a main controller, a memory, a decoder, a selector and a driver, wherein the main controller is electrically connected with the memory, the decoder, the selector and the driver respectively.
The simple and staff symbol head display circuit mainly comprises a driver, a serial-parallel converter, a key part and a lamp part for displaying, wherein the lamp part for displaying is electrically connected with the serial-parallel converter.
The numbered musical notation and staff symbol head display circuit can be played, numbered musical notation notes and staff musical notes can be independently operated to play and sound, and each musical note symbol head can realize luminous synchronous display; when the electronic musical instrument plays and sounds, the pitch information is synchronously displayed on the numbered musical notation and staff head display circuits through the interface circuit.
The utility model has the advantages of it is following and positive effect:
1) on the basis of a common electronic musical instrument, an auxiliary teaching device is accessed through a MIDI or USB interface of the electronic musical instrument, so that the teaching function of the electronic musical instrument is perfected;
2) the learner can better understand and learn the numbered musical notation knowledge, the staff knowledge and the connection between the numbered musical notation knowledge and the staff knowledge by combining the electronic musical instrument;
3) low cost, easy popularization and easy popularization of music teaching.
Drawings
Fig. 1 is a circuit structure diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the symbol button part and the display part of the present invention.
Fig. 3 is a schematic diagram of an interface circuit according to the present invention.
Fig. 4 is a diagram showing the connection relationship between the interface of the present invention and the MIDI interface of the electronic musical instrument.
Wherein,
1.1-main control circuit, 1.2-numbered musical notation and staff symbol display circuit, 1.3-interface circuit, 1.4-power supply, 1.5-MIDI or USB interface of electronic musical instrument, 2.1-main controller chip (IC1), 2.2-decoder chip (IC2), 2.3-data selector chip (IC3), 2.4-serial-parallel conversion chip (IC4), 2.5-serial-parallel conversion chip (IC5), 2.6-display LED, 2.7-numbered musical notation symbol, 3.1-main controller chip (IC1), 3.2-teaching device interface plug-in, 3.3-optical coupling conversion chip (IC6), 4.1-teaching device interface plug-in and 4.2-electronic musical instrument interface plug-in.
Detailed Description
The invention will be further explained by the following specific embodiments with reference to the drawings:
the utility model provides an electronic musical instrument assists teaching instrument, specifically adopt following technical scheme, see fig. 1, this electronic musical instrument assists teaching instrument includes main control circuit 1.1, numbered musical notation and staff sign head display circuit 1.2, interface circuit 1.3, electronic musical instrument's MIDI or USB interface 1.5, power 1.4, main control circuit 1.1 is connected with numbered musical notation and staff sign head display circuit 1.2 and interface circuit 1.3 electricity respectively, interface circuit 1.3 is connected with electronic musical instrument's MIDI or USB interface 1.5 electricity, power 1.4 provides the power for main control circuit 1.1 and numbered musical notation and staff sign head display circuit 1.2 respectively.
The main control circuit 1.1 comprises a main controller, a memory, a decoder, a selector and a driver, wherein the main controller is respectively electrically connected with the memory, the decoder, the selector and the driver; the numbered musical notation and staff symbol display circuit 1.2 mainly comprises a driver, a serial-parallel converter, a key part and a lamp part for display, wherein the lamp part is electrically connected with the serial-parallel converter; the interface circuit 1.3 mainly includes an optocoupler converter, MIDI or USB interface and other peripheral devices.
The working principle of the electronic musical instrument teaching aid after being powered on is described in detail with reference to fig. 1 as follows: after the system is powered on, the main control circuit 1.1 always scans whether the keys are pressed down, when the numbered musical notation and the numbered musical notation symbol head in the numbered musical notation symbol head display circuit 1.2 or the numbered musical notation symbol head are played, the main control circuit 1.1 scans the key value, sends an instruction to the display circuit 1.2, lights the lamp corresponding to the pressed numbered musical notation symbol head, and simultaneously sends the key value to the MIDI or USB interface 1.5 of the electronic musical instrument through the interface circuit 1.3, so that the electronic musical instrument sounds, and acousto-optic synchronization is realized; when the electronic musical instrument is played, the main control circuit 1.1 acquires the pressed key value from the MIDI or USB interface 1.5 of the electronic musical instrument through the interface circuit 1.3, sends the key value to the numbered musical notation and staff symbol head display circuit 1.2, and lights the symbol head lamp corresponding to the key value to realize acousto-optic synchronization.
The played numbered musical notation and staff symbol head display circuit 1.2 can be operated, numbered musical notation notes and staff note symbols heads can be independently operated to play and sound, and each note symbol head can emit light and be synchronously displayed. When the electronic musical instrument is played, the corresponding note head of each played key on the auxiliary teaching device of the electronic musical instrument is lightened, the phoneme of the key in a numbered musical notation system and a staff system is synchronously displayed, and the acousto-optic synchronization is realized.
The electronic musical instrument teaching aid can be in two-way communication with an electronic musical instrument (such as an electronic organ, an electric piano and the like) with a common MIDI or USB interface through an own interface circuit 1.3. On one hand, the electronic musical instrument auxiliary teaching instrument can produce sound through the interface by means of the sound source component of the electronic musical instrument, and on the other hand, the electronic musical instrument synchronously displays the key position information played by the electronic musical instrument on the auxiliary teaching instrument through the interface circuit; the auxiliary teaching device can also communicate with a computer through an interface circuit 1.3 of the auxiliary teaching device, and sound is produced by means of a sound card of the computer.
Fig. 2 shows a schematic circuit diagram of the symbol head key part and the display part of the present invention, IC1 is a main controller chip 2.1, IC2 is a decoder chip 2.2, IC3 is a data selector chip 2.3, IC4 is a serial-to-parallel converter chip 2.4, IC5 is also a serial-to-parallel converter chip 2.5, and IC2 decoder chip 2.2 and IC3 data selector chip 2.3 are combined together, which can be extended to 256 keys at most, as shown in the symbol head 2.7 key in fig. 2; the serial-to-parallel converter is extended behind the IC4 serial-to-parallel converter chip 2.4 and the IC5 serial-to-parallel converter chip 2.5 according to actual needs, thereby increasing the number of LED2.6 lamps required to be displayed.
The working principle of the symbol key part and the display part circuit is as follows: after the system is powered on, the IC1 main controller chip 2.1 cyclically scans the key value of the key 2.7 all the time, if a key is pressed, the state of the T0 pin of the IC1 main controller chip 2.1 changes, the IC1 main controller chip 2.1 determines whether the key is pressed according to the state of T0, if yes, the key value at this time is the key value corresponding to the pressed key, the IC1 main controller chip 2.1 sends the corresponding control word to the IC4 serial-parallel converter chip 2.4, the IC5 serial-parallel converter chip 2.5 and the like according to the obtained key value, and lights the lamp corresponding to the pressed key.
Fig. 3 is a schematic diagram of an interface circuit according to the present invention. IC1 is main controller chip 3.1, IC6 is optical coupling converter chip 3.3, the interface circuit is made into standard MIDI interface 3.2, can also be made into USB interface according to the actual need, here explain the realization principle with MIDI interface.
After the key is pressed, the IC1 master controller chip 3.1 lights the corresponding lamp according to the obtained key value, and simultaneously sends ten data bits and 31.25k bit stream according to the key value from the pin TXD2 of the IC1 master controller chip 3.1, the MIDI OUT of the interface plug-IN 4.1 through the teaching device is connected with the MIDI IN of the interface plug-IN 4.2 of the electronic musical instrument, as shown IN fig. 4, the interface of the utility model is connected with the MIDI interface of the electronic musical instrument, and the bit stream is sent to the electronic musical instrument to make it sound.
When playing an electronic musical instrument, the electronic musical instrument is connected with the MIDI IN of the interface plug-IN 4.1 of the teaching device through the MIDI OUT of the electronic musical instrument interface plug-IN 4.2 of the electronic musical instrument, as shown IN fig. 4, and then is isolated and voltage-converted by the IC6 optical coupler converter chip 3.3, ten data bits and 31.25k bit streams are output from the pin 6 of the IC6 optical coupler converter chip 3.3 and sent to the T1 pin of the IC1 main controller chip 3.1, as shown IN fig. 4, the key pitch information pressed by the electronic musical instrument is obtained after sampling by the IC1 main controller 3.1, and then corresponding control words are sent to the IC4 serial-parallel converter chip 2.4, the IC5 serial-parallel converter chip 2.5 and the like according to the information, and lights corresponding lamps of the simple key part and the staff part on the auxiliary teaching device are lightened.
Claims (4)
1. An electronic musical instrument teaching aid, comprising:
the musical notation and staff symbol head display device comprises a main control circuit (1.1), a numbered musical notation and staff symbol head display circuit (1.2), an interface circuit (1.3), a MIDI or USB interface (1.5) of an electronic musical instrument and a power supply (1.4), wherein the main control circuit (1.1) is electrically connected with the numbered musical notation and staff symbol head display circuit (1.2) and the interface circuit (1.3) respectively, the interface circuit (1.3) is electrically connected with the MIDI or USB interface (1.5) of the electronic musical instrument, and the power supply (1.4) provides power for the main control circuit (1.1) and the numbered musical notation and staff symbol head display circuit (1.2) respectively.
2. The electronic musical instrument teaching aid according to claim 1, wherein:
the main control circuit (1.1) comprises a main controller, a memory, a decoder, a selector and a driver, wherein the main controller is electrically connected with the memory, the decoder, the selector and the driver respectively.
3. The electronic musical instrument teaching aid according to claim 1, wherein:
the simple and staff symbol head display circuit (1.2) mainly comprises a driver, a serial-parallel converter, a key part and a lamp part for displaying, wherein the lamp part for displaying is electrically connected with the serial-parallel converter.
4. The electronic musical instrument teaching aid according to any one of claims 1, 2 or 3, wherein:
the numbered musical notation and staff symbol head display circuit (1.2) can be played, numbered musical notation notes and staff musical notes can be independently operated to play and sound, and each note symbol head can realize luminous synchronous display; when the electronic musical instrument plays and sounds, pitch information is synchronously displayed on the numbered musical notation and staff head display circuits (1.2) through the interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200870593U CN201465339U (en) | 2009-07-03 | 2009-07-03 | Assistant teaching instrument for electronic musical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200870593U CN201465339U (en) | 2009-07-03 | 2009-07-03 | Assistant teaching instrument for electronic musical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465339U true CN201465339U (en) | 2010-05-12 |
Family
ID=42392687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200870593U Expired - Fee Related CN201465339U (en) | 2009-07-03 | 2009-07-03 | Assistant teaching instrument for electronic musical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160657A (en) * | 2021-02-09 | 2021-07-23 | 衡阳师范学院 | Piano teaching auxiliary system |
-
2009
- 2009-07-03 CN CN2009200870593U patent/CN201465339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160657A (en) * | 2021-02-09 | 2021-07-23 | 衡阳师范学院 | Piano teaching auxiliary system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100703 |