CN103928021B - A kind of electroacoustic urheen - Google Patents
A kind of electroacoustic urheen Download PDFInfo
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- CN103928021B CN103928021B CN201410176082.5A CN201410176082A CN103928021B CN 103928021 B CN103928021 B CN 103928021B CN 201410176082 A CN201410176082 A CN 201410176082A CN 103928021 B CN103928021 B CN 103928021B
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Abstract
The invention discloses a kind of electroacoustic urheen, tone detecting device, tone color storage device, loudness detection device, bowing detection device, sound-effect processing equipment and the central controller including structure member, being arranged on structure member, central controller includes that audio frequency chooses module, bowing detection module, loudness detection module and audio effect processing module.During use, by user by button, pull the bow input tone, loudness and bowing information, then system recalls corresponding audio frequency according to input information from tone color storage device, and audio frequency does output after corresponding audio effect processing, whole process completely electronicization, system cost is low.
Description
Technical field
The invention belongs to infomation detection, audio effect processing field, relate to one and have and can gather user's playing information and audio
The electroacoustic urheen electronic system processed.
Background technology
The electroacoustic urheen in front two generations of main flow in the market.First generation electroacoustic urheen only adds on the basis of former urheen
Loudspeaker；The second generation is transferred to effect device after being gathered urheen voice signal by sound pick-up, exports the signal of telecommunication after treatment,
Play by power amplifier.The tonequality of the electroacoustic urheen in front two generations all be unable to do without the material of former urheen itself, the most just cannot break away from
High tone quality is equal to this market discipline of high cost.
The tonequality that the invention enables urheen breaks away from the constraint of material, and the urheen standard pronunciation file of high tone quality is deposited by recording
Storage is got up, and by electroacoustic urheen from operating to completely electronicization, the great number cost of electroacoustic urheen can be greatly lowered.
Summary of the invention
Technical problem: the present invention seeks to provide the user a kind of electronization electroacoustic urheen that degree is higher, cost is lower.
Technical scheme: the electroacoustic urheen of the present invention, including structure member, be arranged on structure member pitch detection dress
Put, tone color storage device, loudness detection device, bowing detect device, sound-effect processing equipment and central controller, its
Being characterised by, central controller includes that audio frequency chooses module, bowing detection module, loudness detection module and audio effect processing
Module；
Tone detecting device is made up of button and Hall element, gather respectively the fingering of user and hand position, confirm
Urheen tone information, and be transferred to audio frequency and choose module；
Tone color storage device is in order to store the standard pronunciation file of each tone of urheen；
Loudness detection device gathers string internal tension size when user plays by pressure sensor, and is transferred to loudness
Detection module；
Bowing detection device gathers the acceleration of the bow that user plays by acceleration transducer, and is transferred to bowing inspection
Survey module；
Audio frequency chooses module, detects the urheen tone information obtained according to tone detecting device, from tone color storage device
The standard pronunciation file transferring correspondence is transferred to sound-effect processing equipment；
Bowing detection module, detects, according to bowing detection device, the bow acceleration information that obtains, it is judged that whether user exists
Draw bow, so that it is determined that whether urheen is in playing state, and the playing state information of urheen is transferred to audio effect processing
Module；
Loudness detection module, detects loudness the device string internal tension size data that obtains of detection and is converted to urheen and drills
Play degrees of data, be then transferred to audio effect processing module；
Audio effect processing module, according to playing state information and the performance loudness data control sound-effect processing equipment of urheen: when
When urheen is in non-playing state, send out-of-work order to sound-effect processing equipment；When urheen is in playing state
Time, send the order started working to sound-effect processing equipment, and transmit Erhu playing loudness data to it；
Sound-effect processing equipment, the out-of-work order sent according to audio effect processing module, stop externally output audio frequency letter
Number；The order started working sent according to audio effect processing module and Erhu playing loudness data, store device by tone color
The audio signal of the standard pronunciation file of output is amplified backward external transmission according to Erhu playing loudness data.
In the preferred version of the present invention, electroacoustic urheen also includes PA-system, and audio signal is amplified by sound-effect processing equipment
After be transferred to PA-system and externally play.
In the preferred version of the present invention, in tone color storage device, the standard pronunciation file of each tone is named in a coded form
Storage；Urheen tone information is confirmed according to same coding rule and gives coding by tone detecting device, then will
Coding transmission chooses module to audio frequency；Audio frequency is chosen module and is transferred mark according to the coding received from tone color storage device
Quasi-sound file.
In the preferred version of the present invention, bowing detection module determines whether urheen is in playing state method particularly includes:
By the speed data that acceleration information Integral Transformation is bow of bow, if the speed of bow is not zero, then judge urheen
It is in playing state；Otherwise urheen is in non-playing state.
In the preferred version of the present invention, sound-effect processing equipment is filtered by audio effect processing module always according to the demand of user
Noise reduction controls: when user needs that audio signal is filtered noise reduction process, sends to sound-effect processing equipment and opens filter
The order of ripple decrease of noise functions；When user need not that audio signal is filtered noise reduction, send to sound-effect processing equipment
Close the order of filtering decrease of noise functions.
When sound-effect processing equipment receives the order opening filtering decrease of noise functions, after audio signal is amplified, then filter
Outwards transmit after ripple noise reduction；When receiving the order closing filtering decrease of noise functions, then after audio signal being amplified directly to
Outer transmission.
Tone detecting device, tone color storage device, loudness detection device, bowing detection device are with sound-effect processing equipment even
Connect central controller；Central processing unit output control signal is to tone detecting device, tone color storage device, loudness detection
Device, bowing detection device and sound-effect processing equipment.
First tone detecting device, loudness detection device and bowing detection device gathers the performance operation information transmission of user
To central controller, tone color storage device provides the audio signal of primary standard sound；Then, the software of central controller
After the performance operation information of user is processed by part, it is transferred to sound-effect processing equipment together with original audio signal；
Finally, sound-effect processing equipment will process after audio signal transmission to sound equipment, externally play.The program makes electroacoustic two
Whole playing procedure electronization recklessly, and reduce the cost of electroacoustic urheen.
In the electroacoustic urheen of the present invention, the audio files storage of each tone is in tone color storage device so that electroacoustic two
Before audio effect processing recklessly, tonequality is ensured, thus avoids and urheen material is had high request, reduce further electricity
The cost of manufacture of sound urheen.
Beneficial effect: the present invention compared with prior art, has the advantage that
The present invention contrasts existing electroacoustic urheen on market, has the advantages that electronic degree is high, cost of manufacture is low.City
Existing electroacoustic urheen on field, is all on the basis of wooden urheen, increases electroacoustic urheen effect device, as domestic honest
Bright 09A electroacoustic urheen and Roland EH-10A electroacoustic urheen etc., so, the tonequality of the existing electroacoustic urheen on market
Also it is to rely on the material of wooden urheen.Electronization degree height of the present invention is not only embodied on audio effect processing, the present invention's
Playing information collection, tone color storage are the most all able to electronization, so need not wooden urheen as carrier, so that
Material is required to reduce by the present invention, thus reduces cost, provides convenience for amateurish urheen fan.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of electroacoustic urheen of the present invention.
Fig. 2 is the schematic appearance of electroacoustic urheen of the present invention.
Fig. 3 is the button slide block schematic diagram of electroacoustic urheen of the present invention.
Fig. 4 is the bow schematic diagram of electroacoustic urheen of the present invention.
Fig. 5 is the sound-effect processing equipment workflow diagram of electroacoustic urheen of the present invention.
Fig. 6 is the bow state detection module flow chart of electroacoustic urheen of the present invention.
Fig. 7 is the audio effect processing block flow diagram of electroacoustic urheen of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is described in further details:
In the present embodiment, structure member is audio amplifier and the qin bar of imitative primary urheen, and control system is arranged in urheen audio amplifier,
Control system connects and controls PA-system.Control system is by tone detecting device, tone color storage device, loudness detection
Device, bowing detection device, sound-effect processing equipment and central controller are constituted, principle schematic as it is shown in figure 1, its
In each device be connected with central controller.
Hardware components is broadly divided into following device:
1, tone detecting device
The tone of urheen position and fingering are determined by the left hand of player, as in figure 2 it is shown, at the qin bar of electroacoustic urheen
On have six Hall elements A, B, C, D, E, F, for detect player position information, by Erhu music instrument bar
Having a guide rail parallel with qin bar, it is slide block M schematic diagram that guide rail has a slide block M, Fig. 3, and slide block M uses
Fingering in detection user.Specifically comprising the following steps that of pitch detection
(1) as in figure 2 it is shown, be first position between Hall element A, B, it is second between Hall element B, C
Position, it is the 3rd position between Hall element C, D, is the 4th position between Hall element D, E, Hall element
It is the 5th position between E, F；As it is shown on figure 3, the most corresponding place of button P1, P2, P3, P4, P5 is position
First to the 5th sound.When the magnet T on slide block produces through any one Hall element, hall element output voltage
Raw level change；When by any one button of sliding block, on slide block, corresponding button output level becomes low level.
(2) position, player being initialized as first position, if detecting there is level change in Hall element B output,
Player place is second position position；Player is currently second position position, if detecting, Hall element C exports
Level change occurs, and player place is the 3rd position position, if detecting, Hall element B output occurs level change
Time, player place is first position position；Player is currently the 3rd position position, if Hall element D being detected
There is level change in output, player place is the 4th position position, if detecting, Hall element C output occurs level
During change, player place is second position position；The like, then can confirm that player position information.
(3) if the pressed button of player is button P1, as it is shown on figure 3, then slide block output level Q1, Q2, Q3,
Q4, Q5 are the lowest, high, high, high, high；If the pressed button of player is button P2, then slide block output level
Q1, Q2, Q3, Q4, Q5 are the most high and low, high, high, high；The rest may be inferred, then can confirm that player's
Fingering information.
The tone information of Erhu playing detection obtained is converted into reference numeral.If detection obtains player institute opsition dependent
Be the Pn key of m handle, then urheen tone information reference numeral is " mn ".By this numbered transmission to central controller
Audio frequency choose module.
2, tone color storage device
The audio file of each tone of urheen of tone color storage device storage high-quality, enters the audio file of each tone
Line number, if this audio file correspondence urheen m handle, the n-th sound, the most numbered " mn ", by numbered transmission
To the tone color memory module of central controller.Tone color storage device can select chip I SD4004.
3, bowing detection device
The bowing of urheen is by the Determines of user's push-and-pull bow, as shown in Figure 4, and acceleration transducer MPU6050
It is arranged on bow, plays brief acceleration sensor player and detect the acceleration magnitude of bow in real time, and by bow
Acceleration information be transferred to the bowing detection module of central controller.
4, loudness detection device
The loudness of urheen sounding is determined by the dynamics of user's string pulling, and loudness detection device detects string by pressure sensor
Internal pulling force, so that it is determined that the dynamics of user's string pulling.As in figure 2 it is shown, electroacoustic urheen string is fixed on pressure sensing
On device K, player is when drawing bow, and bow can make the string of urheen produce deformation, so that string is to pressure sensing
Device K produces pulling force and causes pressure sensor K deformation, and the data detected are transferred to central authorities' control by pressure sensor K
The audio effect processing module of device processed, these data reflect the Tensity size within string.Pressure sensor can choose with
HX711 chip is as the bridge type pressure sensor of A/D chip.
(5) sound-effect processing equipment
Sound-effect processing equipment reads the order whether worked of audio effect processing module output in central controller, urheen is drilled
The data of degree of playing size and whether open the order of filtering decrease of noise functions, and the standard pronunciation of tone color storage device output
File.If reading the out-of-work order that audio effect processing module sends, then after stopping externally exporting audio effect processing
Audio signal；If not reading the out-of-work order that audio effect processing module sends, then tone color is stored device defeated
The audio signal of the standard pronunciation file gone out is amplified according to the data of Erhu playing loudness size, as shown in table 1, if
The data of Erhu playing loudness size are 3, then the audio signal of standard pronunciation file is amplified 3 times.If reading audio
What processing module sent opens the order of filtering decrease of noise functions, then the audio signal after amplifying is filtered noise reduction
After be transferred to PA-system；If not reading the order opening filtering decrease of noise functions that audio effect processing module sends, then
By the audio signal transmission after amplifying to sound equipment.Particular flow sheet is shown in Fig. 5.Sound-effect processing equipment can use
WM8731 chip.
(6) PA-system
PA-system receives the urheen audio signal after the audio effect processing of sound-effect processing equipment output, and externally plays.
Software for Design part includes with lower module:
(1) audio frequency chooses module
Audio frequency is chosen module and is obtained, according to tone detecting device detection, the numbering that urheen tone information is corresponding, stores from tone color
Device is transferred the standard pronunciation file of corresponding numbering, is transferred to sound-effect processing equipment.Audio frequency is chosen module and can be passed through
Verilog language realizes in PLD (FPGA).
(2) loudness detection module
Loudness detection module receives the pulling force information within string that loudness detection device records, and pulling force information is changed
The loudness information played for player is transferred to audio effect processing module.If pressure sensor is chosen with HX711 chip
As the bridge type pressure sensor of A/D chip, then the loudness size data corresponding relation such as table of pulling force data and performance
Shown in 1.Loudness detection module can be realized in PLD (FPGA) by Verilog language.
Table 1 pulling force data table corresponding with the loudness data of performance
| Sensors A D chip HX711 output data (hexadecimal) | Loudness data |
| 000000～400000 | 0 |
| 400001～500000 | 0.5 |
| 500001～600000 | 1.0 |
| 600001～700000 | 1.5 |
| 700001～800000 | 2.0 |
| 800001～900000 | 2.5 |
| 900001～A00000 | 3.0 |
| A00001～FFFFFF | 3.5 |
(3) bowing detection module
The acceleration information of the bow that bowing detection module records according to bowing detection device, the acceleration information to bow
It is integrated obtaining the speed data of bow.Judging the state of bow, if the speed of bow is not zero, then bow is in
Playing state；If the speed of bow is zero, bow is in non-playing state.Then the status information of bow is transferred to
Audio effect processing module.Particular flow sheet is shown in Fig. 6.Bowing detection module can be by Verilog language at FPGA
Device (FPGA) realizes.
(4) audio effect processing module
Audio effect processing module reads playing state information and the loudness detection mould of the urheen that the detection of bowing detection module obtains
The data of the Erhu playing loudness size that block detection obtains.If reading urheen to be in non-playing state, then at audio
Reason device sends out-of-work order；If reading urheen to be in playing state, then by Erhu playing loudness size
Data are transferred to sound-effect processing equipment.Audio effect processing module can also send to sound-effect processing equipment according to the demand of user
Whether open the order of filtering decrease of noise functions.Particular flow sheet is shown in Fig. 7.Audio effect processing module can pass through Verilog
Language realizes in PLD (FPGA).
The workflow of electroacoustic urheen of the present invention is as follows:
User inputs tone information by left hand key；Added by right hand fortune bow input string pulling force size data and bow
Speed data.Central processing unit calls respective standard sound file from tone color memory module according to tone information and is transferred to sound
Effect processing means, string pulling force size data and bow acceleration information are processed and are converted to loudness by central controller respectively
Information and bow status information, and it is transferred to sound-effect processing equipment；Sound-effect processing equipment is according to loudness information and bow stick shape
After state information carries out audio effect processing to standard pronunciation file, it is transferred to sound equipment；Sound equipment is externally play.
Above-mentioned specific embodiment is only presently preferred embodiments of the present invention, is not used for limiting the practical range of the present invention.I.e.
All equivalence changes made according to the content of the present patent application right and replacement, all should be used as the protection of the present invention
Scope.
Claims (5)
1. an electroacoustic urheen, tone detecting device, tone color storage device, loudness detection device, bowing detection device, sound-effect processing equipment and the central controller including structure member, being arranged on described structure member, described central controller includes that audio frequency chooses module, bowing detection module, loudness detection module and audio effect processing module；It is characterized in that, described tone detecting device is made up of button and Hall element, gather respectively the fingering of user and hand position, confirm urheen tone information, and be transferred to audio frequency and choose module；
Described tone color storage device is in order to store the standard pronunciation file of each tone of urheen；
Described loudness detection device gathers string internal tension size when user plays by pressure sensor, and is transferred to loudness detection module；
Described bowing detection device gathers the acceleration of the bow that user plays by acceleration transducer, and is transferred to bowing detection module；
Described audio frequency chooses module, detects the urheen tone information obtained according to tone detecting device, and the standard pronunciation file transferring correspondence from tone color storage device is transferred to sound-effect processing equipment；
Described bowing detection module, detects, according to bowing detection device, the bow acceleration information obtained, it is judged that whether user is drawing bow, so that it is determined that whether urheen is in playing state, and the playing state information of urheen is transferred to audio effect processing module；
Described loudness detection module, detects loudness the device string internal tension size data that obtains of detection and is converted to Erhu playing loudness data, be then transferred to audio effect processing module；
Described audio effect processing module, according to playing state information and the performance loudness data control sound-effect processing equipment of urheen: when urheen is in non-playing state, send out-of-work order to sound-effect processing equipment；When urheen is in playing state, sends the order started working to sound-effect processing equipment, and transmit Erhu playing loudness data to it；
Described sound-effect processing equipment, the out-of-work order sent according to audio effect processing module, stop externally exporting audio signal；The order started working sent according to audio effect processing module and Erhu playing loudness data, the audio signal of the standard pronunciation file that tone color stores device output is amplified backward external transmission according to Erhu playing loudness data.
Electroacoustic urheen the most according to claim 1, it is characterised in that this urheen also includes PA-system, described sound-effect processing equipment is transferred to PA-system after audio signal being amplified and externally plays.
Electroacoustic urheen the most according to claim 1, it is characterised in that in described tone color storage device, the standard pronunciation file of each tone stores in a coded form；Urheen tone information is confirmed according to same coding rule and gives coding by described tone detecting device, then to audio frequency, coding transmission is chosen module；Described audio frequency is chosen module and is transferred standard pronunciation file according to the coding received from tone color storage device.
4. according to the electroacoustic urheen described in claim 1,2 or 3, it is characterized in that, described bowing detection module determines whether urheen is in playing state method particularly includes: by the speed data that acceleration information Integral Transformation is bow of bow, if the speed of bow is not zero, then judge that urheen is in playing state；Otherwise urheen is in non-playing state.
5. according to the electroacoustic urheen described in claim 1,2 or 3, it is characterized in that, described audio effect processing module is filtered noise reduction control always according to the demand of user to sound-effect processing equipment: when user needs that audio signal is filtered noise reduction process, send the order opening filtering decrease of noise functions to sound-effect processing equipment；When user need not that audio signal is filtered noise reduction, send the order closing filtering decrease of noise functions to sound-effect processing equipment；
When described sound-effect processing equipment receives the order opening filtering decrease of noise functions, after audio signal is amplified, more outwards transmit after being filtered noise reduction；When receiving the order closing filtering decrease of noise functions, then direct out transmission after audio signal being amplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410176082.5A CN103928021B (en) | 2014-04-28 | 2014-04-28 | A kind of electroacoustic urheen |
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| CN103928021B true CN103928021B (en) | 2016-08-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875931A (en) * | 2017-04-07 | 2017-06-20 | 壹零（北京）乐器有限公司 | Sound effect control device and intelligent musical instrument |
| CN107945618A (en) * | 2018-01-18 | 2018-04-20 | 牡丹江师范学院 | A kind of urheen fingering training device |
| WO2019213911A1 (en) * | 2018-05-10 | 2019-11-14 | 深圳配天智能技术研究院有限公司 | Simulation device for bowed string instrument |
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|---|---|---|---|---|
| CN86103647A (en) * | 1986-04-24 | 1987-10-21 | 浙江省平阳县工业科学技术开发中心 | Electronic Hu Qin |
| CN202601180U (en) * | 2012-05-30 | 2012-12-12 | 邱文 | Electronic sound pick-up for urheen |
| CN202796035U (en) * | 2012-07-17 | 2013-03-13 | 徐海涛 | Electric urheen sensor device |
| JP5232532B2 (en) * | 2008-05-27 | 2013-07-10 | ローランド株式会社 | controller |
-
2014
- 2014-04-28 CN CN201410176082.5A patent/CN103928021B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103647A (en) * | 1986-04-24 | 1987-10-21 | 浙江省平阳县工业科学技术开发中心 | Electronic Hu Qin |
| JP5232532B2 (en) * | 2008-05-27 | 2013-07-10 | ローランド株式会社 | controller |
| CN202601180U (en) * | 2012-05-30 | 2012-12-12 | 邱文 | Electronic sound pick-up for urheen |
| CN202796035U (en) * | 2012-07-17 | 2013-03-13 | 徐海涛 | Electric urheen sensor device |
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| CN103928021A (en) | 2014-07-16 |
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