CN103544935A

CN103544935A - Automatic tuning harp shaft for stringed instruments

Info

Publication number: CN103544935A
Application number: CN201310469217.2A
Authority: CN
Inventors: 蔡金霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-01-29
Anticipated expiration: 2033-10-10
Also published as: CN103544935B

Abstract

The invention discloses an automatic tuning harp shaft for stringed instruments. A microcomputer chip is installed in the harp shaft. International eleven unit pitches are recorded into the chip in advance by a microcomputer control program, and piano C key is taken as the standard pitch to tune the eleven unit pitches. The microcomputer chip is installed at the rear end of the interior of the harp shaft. A motor is arranged at the front end of the interior of the harp shaft and connected with a rotary shaft through a speed changer. The microcomputer collects a signal indicating that a string is loosened through an audio sensor and sounds a voice frequency decibel, and the sound is converted into signal data; comparison and analysis data are formed by the signal data and tone and voice data stored in the microcomputer chip, and sent to a drive direct-current variable-frequency motor; the direct-current variable-frequency motor is powered by a lithium battery, and drives the rotary shaft to rotate to detect accuracy of voice frequency under the control of the microcomputer chip, so that the objective of tuning is achieved; a rotary shaft locking device is locked after toning; tuning base point buttons from low key to high key are sequentially arranged on the surfaces of harp shafts of an inner string and an outer string. The automatic tuning harp shaft is applicable to various stringed instruments.

Description

The full-automatic accordatura of the upper stringed musical instrument qin axle of tuning a stringed instrument

Technical field

The present invention relates to musical instrument technical field, the definite full-automatic accordatura of a kind of upper stringed musical instrument qin axle of tuning a stringed instrument that says.

Background technology

At present, adjacent two strings of all upper stringed musical instruments are all to differ 5 degree accordatura relations both at home and abroad, thereby limited the performance range width of bowed instrument, at present, some are all in the structure of qin cylinder to the improvement of urheen, Chinese Patent Application No. more than 200920015228.2 discloses a kind of name and has been called " tone color electronics audiovisual urheen " and the utility model discloses a kind of multi-timbral electronic audio-video two-stringed Chinese fiddle, and it has qin axle, qin bar, bow, qin cylinder; In qin cylinder one side, establish template, qin cylinder opposite side is established preposition secondary qin cylinder, and secondary qin cylinder one side is sound window, under secondary qin cylinder, has on audio amplifier, audio amplifier and fills loudspeaker; Under qin cylinder, have Qin Tuo, its built-in playing device fills video display on qin bar, and above-mentioned playing device is that pickup is amplified, tone power amplifier connects USB flash disk player circuit, and this player circuit connects display and forms.Be not change on the basis of the original feature of urheen, adopt advanced microelectric technique, can make to play and play combination, both can obtain tone color effect, again playback of audio-visual works at any time.It is a kind of improvement electronic erhu that carries accompaniment song that Chinese Patent Application No. 201120452697.8 discloses a kind of electronic erhu of improveing.Comprise scroll head, qin bar, qin cylinder, qin cylinder arranged outside has bridge, audio output port, accompany bent button and urheen button, in qin cylinder, acoustic pickup is set, frequency division digital circuit and integrated package, described acoustic pickup, frequency division digital circuit and integrated package by electric wire be fixed on qin cylinder in sound equipment be connected, sound equipment external power supply, qin cylinder end outer surface has sound window, stores a first piano accompaniment song in integrated package, by accompaniment during bent button piano companion song sound, urheen starts to sound simultaneously, plays more long-drawn-out refined and graceful stage effect; If user does not think piano accompaniment, can press urheen button, now become urheen solo.Improve electronic erhu and not only played good, the easy and simple to handle effect of sounding effect, more can add more audio, allow user and hearer better appreciate perfect Erhu playing bent, produced better stage effect.

Summary of the invention

The object of this invention is to provide the full-automatic accordatura of a kind of upper stringed musical instrument qin axle of tuning a stringed instrument, be arranged on bowed instrument (such as urheen, arena qin) and can expand 7 ranges, fundamentally solved the use limitation of middle foundation of a nation national stringed instrument, convenient tuning is at any time seted the tone.

The object of the invention is to be achieved through the following technical solutions,

The full-automatic accordatura of the upper stringed musical instrument qin axle of tuning a stringed instrument, is characterized in that: microcomputer chip is equipped with in qin axle inside, it is international that chip shifts to an earlier date typing by microcomputerized control program, and 11 unit tones that are adjusted to concert pitch accordatura with piano C are as follows:

BF ... bG ... bA ... bB ... C ... D ... E ... F ... G ... A ... B international standard pitch is as reference tone reftone;

In the inner back-end device of qin axle, there is microcomputer chip, front end is that direct current variable frequency motor connects qin axle by variator, qin axle is connected with suspension string, microcomputer chip collects in string pine string situation by audio sensor, sound audio frequency decibel once, convert signal data to, form comparative analysis data with the tonal sound audio data of microcomputer chip storage inside, be sent to again and drive on direct current variable frequency motor, direct current variable frequency motor is by the lithium battery power supply of fixing, then direct current variable frequency motor is under microcomputer chip is controlled, drive qin axle both forward and reverse directions detect back and forth audio frequency exact value and rotate, reach the object of the accordatura standard of tuning a stringed instrument, after aiming at tone, rotating shaft locking device is locked, do not rotating, on the surface of interior string qin axle and outer string qin axle, be provided with the button of tuning a stringed instrument to lofty tone by low-key successively, accordatura modified tone button and Song Xian button,

Accordatura modified tone button is to be arranged in the case surface of qin axle with following form, demonstrates:

c...... d...... e...... f...... g...... a...... bexterior string qin axle is installed 7 accordatura modified tone buttons

B f..b g.b a..b b... c...... d...... einterior string qin axle is installed 7 accordatura modified tone buttons.

Pilot lamp is housed on shell.Mix up after accuracy in pitch and tone, pilot lamp becomes green from redness, then postpones 3 seconds automatic light-off power-off locking strings afterwards, does not reach fixing not loose string while there is no instruction, does not also just exist while playing out of tune.

Advantage of the present invention is: because, adjacent two strings of all upper stringed musical instruments are all to differ 5 degree accordatura relations both at home and abroad, so, the full-automatic accordatura of the upper stringed musical instrument qin axle of tuning a stringed instrument is arranged on bowed instrument (such as urheen, four-stringed bowed instrument, middle Hu, jinghu, bowed stringed instrument with a thin wooden soundboard, recklessly high, plate urheen, beat qin, matouqin) on, can expand 7 ranges, fundamentally solved the use limitation of middle foundation of a nation national stringed instrument, convenient tuning is at any time seted the tone, by micro computer auto-alignment pitch, all computer automation can lock not loose string after adjusting accuracy in pitch, can instrumental ensemble with any musical instrument at any time, reach and play at any time any song one key and easily change mode.Therefore, this product utilization high-tech means completes accordatura and tunes a stringed instrument, and has thoroughly solved a loose string intractable difficult problem out of tune in all bowed instrument playing procedures, thereby allow any musical instrument of middle foundation of a nation national stringed instrument and the world reach perfect, instrumental ensembles.Invention application range of products :the stringed musical instrument on other such as urheen, four-stringed bowed instrument, middle Hu, jinghu, bowed stringed instrument with a thin wooden soundboard, high Hu, plate urheen, arena qin, matouqin, trichord, dulcimer, Zheng, violoncello, middle Ruan, violin, Chinese lute, guitar.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is exterior string qin axle schematic diagram of the present invention.

Fig. 3 is string qin axle schematic diagram in the present invention.

Fig. 4 is principle of work block diagram.

Fig. 5 is the schematic diagram that the present invention uses on urheen musical instrument.

In figure, 1 is battery, the 2nd, and microcomputer chip, the 3rd, motor, the 4th, variator, the 5th, qin axle, the 6th, the button of tuning a stringed instrument, the 7th, the button of setting the tone, the 8th, loose string button, 9 strings.

Embodiment

Embodiment 1

The present invention is used on two qin axles of exterior string in urheen, the inner back-end device of these two qin axles has microcomputer chip control system, front end is inside and outside two strings that gear shaft is hanging respectively urheen, microcomputer control system collects the interior exterior string of urheen in loose string situation by audio sensor, sound audio frequency decibel once, convert signal data to, form comparative analysis data with the tonal sound audio data of microcomputer chip storage inside, be sent to again and drive on direct current variable frequency motor, direct current variable frequency motor is by lithium battery power supply (need to be with 5V DC charger according to design), then direct current variable frequency motor is under microcomputer chip is controlled, driven gear axle both forward and reverse directions detects back and forth audio frequency exact value and rotates, reach the object of the accordatura standard of tuning a stringed instrument, aiming at tone backgear axle is not rotating, pilot lamp on shell becomes green from redness, postpone again 3 seconds automatic light-off power-off locking strings afterwards, reach fixing not loose string while there is no instruction, just do not exist while playing out of tune yet! on the surface of inside and outside string qin axle, be provided with in addition the accordatura modified tone button to lofty tone by low-key successively, with English alphabet, show and represent international accuracy in pitch,

c...... d...... e...... f...... g...... a...... b(7 accordatura modified tone buttons of urheen exterior string qin axle) bF....bG...bA..bB...C....D....E(7 accordatura modified tone buttons of string qin axle in urheen)

While needing turning gear wheel shaft to tune a stringed instrument after direct current variable frequency motor is received instruction, player can be according to playing music object mode height, with 14 concert pitch buttons, select flexibly, reach urheen and can freely select to change tune when playing the music track of different modes.

Because, urheen, four-stringed bowed instrument, middle Hu, jinghu, bowed stringed instrument with a thin wooden soundboard, high Hu, plate urheen, arena qin, matouqin, trichord, dulcimer, Zheng, violoncello, middle Ruan, violin, Chinese lute, guitar etc. on other inside and outside two string accordatura of stringed musical instrument all will to differ 5 degree be beat relation;

So, first with the microcomputerized control program entry of urheen exterior string qin axle c...... d...... e...... f...... g...... a...... bidentical pitch accuracy in pitch keynote is as the tuning basic point of urheen exterior string;

In urheen, string qin axle is also used the corresponding b of microcomputerized control program entry f..b g.b a..b b...... c...... d...... eidentical pitch accuracy in pitch keynote is as the tuning basic point of string in urheen; Inside and outside two strings of urheen form the corresponding relation that differs 5 degree pitches and arrange as follows on upper and lower two the qin axles of urheen:

With reference to principle of work block diagram, according to musical instrument, require any electronic technology personnel all can compile out program.Any instrumental music factory all can produce the present invention.

By micro computer auto-alignment pitch, all computer automations can lock not loose string after adjusting accuracy in pitch, can be at any time and any musical instrument He Zou, and reach and play at any time any song one key and easily change mode.Therefore, this product utilization high-tech means completes accordatura and tunes a stringed instrument, and has thoroughly solved a loose string intractable difficult problem out of tune in all bowed instrument playing procedures, thereby allow any musical instrument of middle foundation of a nation national stringed instrument and the world reach perfect, instrumental ensembles.

Embodiment 2

Corresponding the present invention can be installed to, four-stringed bowed instrument, middle Hu, jinghu, bowed stringed instrument with a thin wooden soundboard, high Hu, plate urheen, arena qin, matouqin, trichord, dulcimer, Zheng, violoncello, middle Ruan, violin, Chinese lute, guitar etc. are on other on stringed musical instrument.

Claims

1. go up the full-automatic accordatura of the stringed musical instrument qin axle of tuning a stringed instrument, it is characterized in that: microcomputer chip is equipped with in qin axle inside, it is international that chip shifts to an earlier date typing by microcomputerized control program, and 11 unit tones that are adjusted to concert pitch accordatura with piano C are as follows: bF ... bG ... bA ... bB ... C ... D ... E ... F ... G ... A ... B international standard pitch is as reference tone reftone, in the inner back-end device of qin axle (5), there is microcomputer chip (2), front end is that direct current variable frequency motor (3) connects qin axle (3) by variator, qin axle (3) is connected with suspension string (9), microcomputer chip (2) collects in the loose string situation of string (8) by audio sensor, sound audio frequency decibel once, convert signal data to, form comparative analysis data with the tonal sound audio data of microcomputer chip (2) storage inside, be sent to again and drive on direct current variable frequency motor (3), direct current variable frequency motor (3) is powered by the lithium battery of fixing (1), then direct current variable frequency motor (3) is under microcomputer chip is controlled (2), drive qin axle (5) both forward and reverse directions detect back and forth audio frequency exact value and rotate, reach the object of the accordatura standard of tuning a stringed instrument, after aiming at tone, rotating shaft locking device is locked, do not rotating, case surface at interior string qin axle and outer string qin axle is provided with the button of tuning a stringed instrument (6) to lofty tone by low-key successively, accordatura modified tone button (7) and loose string button (8).

2. the full-automatic accordatura of the upper stringed musical instrument according to claim 1 qin axle of tuning a stringed instrument, is characterized in that: accordatura modified tone button (7) is to be arranged in the case surface of qin axle with following form, demonstrates:

c...... d...... e...... f...... g...... a...... bexterior string qin axle is installed 7 accordatura modified tone buttons;

3. the full-automatic accordatura of the upper stringed musical instrument according to claim 1 qin axle of tuning a stringed instrument, is characterized in that: pilot lamp is housed on shell.