CN102903277A

CN102903277A - Key practicing indicating device

Info

Publication number: CN102903277A
Application number: CN2012103227450A
Authority: CN
Inventors: 胡再国
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2012-09-04
Filing date: 2012-09-04
Publication date: 2013-01-30

Abstract

The invention provides a key practicing indicating device and relates to the field of instrument teaching, in particular to teaching of key type instruments. Playing is a familiar process, and beats can be mastered only after long-time practice. At present, a student is taught by playing the instruments, the efficiency is low, and the cost is expensive. To improve teaching effects of key type instruments and reducing labor intensity in teaching, the technical scheme is that the key practicing indicating device is composed of a computer, a signal line, a controller, a wire and light-emitting diodes. Music data are stored in a database file in the computer, the database data of the computer are transmitted to the controller through procedures and the signal line, after the controller translation is finished, the light-emitting diodes of keys are controlled to emit light. The key practicing indicating device has the advantages that music score is recorded into databases, a control system is started, repeated practice can be performed, and instruction workload of teachers is reduced; and the key practicing indicating device is favorable for accurate music score mastering by students and also favorable for rapid spread of teaching and popularization of instruments and reduces music teaching cost.

Description

Key exercise indicating device

Technical field

The present invention relates to the musical instrument teaching field, particularly the teaching of key kind musical instrument.

Background technology

Music is that note is arranged in chronological order, and bent writer writes out duration and the ordering of note, each note, and the player strictly plays by note duration and power, and the correctness of note order and corresponding duration characterizes player's level.

Play and be one and be familiar with process, beat is to need long-time exercise just can grasp.If teacher teaches by doing the student always, its efficient will be and be low, and labour intensity also is huge, and the student will obtain more outstanding teaching, and its tuition fee also will be relatively more expensive, and the universal of this musical instrument is restricted.

In science and technology relatively advanced today, adopt original instructing in words and by deeds, also fallen behind really very much.

Summary of the invention

Be the teaching efficiency that improves the key kind musical instrument, the labour intensity that reduces teaching, the present invention designs a kind of key exercise indicating device.

The present invention realizes that the technical scheme that goal of the invention adopts is:

The development degree of modern science and technology, the time precision of computing machine might be indicated each note duration and power by computing machine fully.

Device is comprised of computer, signal wire, controller, wire, light emitting diode.

In computer, every first music data adopts a data library file storage, data field comprises the power of per minute beat number, time series (take beat as chronomere), note, the duration of a sound (take beat as chronomere), beat, the time series starting point be 0,1/4 beat as 1,1/8 beat as 0.5,1/2 beat is as 2, by that analogy, whether note represents is 1-7 and high pitch, bass, semitone, and the duration of a sound is the time quantum (1/4 beat is as 1) that note continues.

The database data of computer is delivered to controller by program and signal wire, after the controller translation is finished, and the light emitting diode of control and each key, corresponding 2 light emitting diodes of each key, one glows, and the note of corresponding beat is strong; A green light, to note that should beat be a little less than, by the high level of wire output to this light emitting diode, then this light emitting diode is lighted, the time of lighting is by the control of note duration.

The invention has the beneficial effects as follows: when the music director teacher prepares lessons, only the exercise music score of Chinese operas need to be entered into database, behind instruction of papil, by opening control system, the student can repeat exercise, reduces teacher's guiding work amount; By the fluorescent lifetime of light emitting diode, the beat of accurately pointing out student's button to continue is conducive to the student and accurately grasps the music score of Chinese operas; Because database can copy, can once work, use many places, reduces the duplication of labour, also is beneficial to the fast propagation of teaching and popularizing of musical instrument, reduces the music teaching cost.

Description of drawings

Fig. 1 is key exercise indicating device.

Wherein, 1, computer, 2, signal wire, 3, controller, 4, wire, 5, light emitting diode.

Embodiment

In computer 1, adopt data database storing, data field comprises time shaft sequence (beat), note, the duration of a sound (beat), the time shaft starting point be 0,1/4 beat as 1,1/8 beat as 0.5,1/2 beat is as 2, by that analogy, whether note represents is that and high pitch, bass, the semitone of 1-7, and the duration of a sound is the time quantum (1/4 beat is as 1) that note prolongs.

The database data of computer 1 is delivered to controller 3 by program and signal wire 2, after controller 3 translations were finished, the light emitting diode 5 of control and each key was at high level of wire 4 outputs of this light emitting diode 5, then this light emitting diode 5 is lighted, and the time of lighting is controlled by the duration of a sound.

Note and high pitch, bass and semitone, can be defined as a field, also can be defined as two fields even three fields, such as 310,320,315,325 basses that can be expressed as respectively note 3 (with 1 expression), high pitch (with 2 expressions) and semitone (representing with 5), the efficient that how much generally depends on equipment of field, the efficient of equipment is high, and field can be more, and logging data is simplified.

Claims

1. key exercise indicating device is comprised of computer, signal wire, controller, wire, light emitting diode, it is characterized in that: in computer, every first music data adopts a data library file storage, database data utilizes program to be delivered to controller by signal wire, after controller translation is finished, thereby control light emitting diode luminous of the wire level control position of piano key of each light emitting diode.

2. key according to claim 1 is practised indicating device, it is characterized in that: corresponding 2 light emitting diodes of each key, and one glows, and the note of corresponding beat is strong; A green light, to note that should beat be a little less than; At high level of wire output of this light emitting diode, then this light emitting diode is lighted, and the time of lighting is by the control of note duration.

3. key according to claim 1 is practised indicating device, it is characterized in that: data field comprises the power of per minute beat number, time series (take beat as unit), note, the duration of a sound (take beat as chronomere), beat, the time shaft starting point is 0,1/4 beat is as 1,1/8 beat as 0.5,1/2 beat as 2, by that analogy, whether the expression of note is 1-7 and high pitch, bass, semitone, and the duration of a sound is the time quantum (1/4 beat is as 1) that note continues.