CN2932557Y - Digital string sound processing circuit and the electric Hu violin using the same - Google Patents
Digital string sound processing circuit and the electric Hu violin using the same Download PDFInfo
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- CN2932557Y CN2932557Y CN 200620122071 CN200620122071U CN2932557Y CN 2932557 Y CN2932557 Y CN 2932557Y CN 200620122071 CN200620122071 CN 200620122071 CN 200620122071 U CN200620122071 U CN 200620122071U CN 2932557 Y CN2932557 Y CN 2932557Y
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- string
- qin
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- tone color
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Abstract
The utility model discloses a digital chordotonal processing circuit, which comprises a power supply module, a clock pulse unit, a chordotonal collection module, a timbre processing module and a chordotonal reductive module. The utility model also discloses an electric hu qin which includes the digital chordotonal processing circuit, wherein the chordotonal processing circuit is arranged inside the musical instrument body and a boa skin resonance structure is not used any more. Because the utility model discards the boa skin resonance theory of the common hu qin and employs a vibration transducer to directly collect and apperceive the vibration of the string, the utility model can improve the tone, increase the volume of the high register, and realize simulating the timbre of the string musical machine at any pitch.
Description
Technical field
The utility model relates to a kind of electronic strianged music instrument, particularly relates to digital string sound treatment circuit and the electronic Hu Qin that contains this circuit.
Background technology
Chinese fiddle is one of most important musical instrument kind in the Chinese national music system, and its tone color uniqueness is soft and graceful, the playing technique uniqueness.The tone color characteristics of Chinese fiddle are from its boa skin resonant structure, but this structure is also brought some shortcomings, and noise is bigger, and high pitch Qu Yinliang decay rapidly.The high-grade Chinese fiddle of good tone color is to boa skin, wooden and requiring of doing manual work is high, so cost is very considerable.
At this shortcoming of Chinese fiddle, people did a lot of improvement and attempted.Comprise on the structure, the change in the selection, introduce method such as electronic circuit.Existing electronic Hu Qin mainly contains two kinds of implementations:
The one, on the basis that keeps the Chinese fiddle structure, introduce Analogic Electronic Circuits, utilize the electronic Hu Qin of the method simulation Chinese fiddle tone color of circuit resonance.Earlier convert vibrations of strings to electric signal, produce the Chinese fiddle timbre, through the circuit conditioning volume, convert acoustical vibration to by loudspeaker again again through the resonant mode voicefrequency circuit.This electronic Hu Qin can improve tonequality, increases the treble volume, but the resonant mode voicefrequency circuit is difficult to simulating the Chinese fiddle tone color on the pitch arbitrarily satisfiedly.
The another kind of realization is to adopt the keyboard-type structure to simulate the tone color of Chinese fiddle on musical instruments such as mellotron, but owing to keyboard structure is difficult to accurately reproduce the abundant playing skill of Chinese fiddle, so simulate effect is also undesirable.
In sum, lack a kind of tone color characteristics that both kept Chinese fiddle in the prior art, can overcome the electronics Chinese fiddle implementation of Chinese fiddle inherent defect again.
Summary of the invention
The technical matters that the utility model solves has provided a kind of digital string sound treatment circuit and has used the electronic Hu Qin of this circuit, can reproduce the tone color characteristics and the playing skill of Chinese fiddle, can overcome the intrinsic tonequality defective of Chinese fiddle again.
The utility model proposes a kind of digital string sound treatment circuit, comprising: power module, time clock unit, string sound acquisition module, tone color processing module polyphonic ring tone recovery module;
Described power module provides working power for other modules;
Described time clock unit provides time clock for the digital device in the circuit;
Described string sound acquisition module passes through sensor acquisition with the vibration string sound of Chinese fiddle, and converts digital signal to;
Described tone color processing module is with the digital signal of the synthetic string qin tone color of digitized string tone signal of string sound acquisition module output;
Described string sound recovery module converts the digital signal of the string qin tone color that the tone color processing module generates to electric signal.
Described string sound acquisition module comprises: vibration transducer, prefilter and analog to digital converter, vibration transducer are gathered the string vibration signal, and convert thereof into electric signal and output to prefilter; Prefilter filters out the noise frequency beyond the string qin audio frequency, and outputs to analog to digital converter; Analog to digital converter will be a digital signal through the string vibration electrical signal conversion of filtering.
Described tone color processing module comprises: processor unit, read-only memory unit, dynamic random storage unit; Read-only memory unit is used to preserve the frequency spectrum parameter of Chinese fiddle and the program code that processor unit need be carried out; The dynamic random storage unit is used for preserving the intermediate data that the processor unit processing procedure produces; Processor unit is used for the digitizing string tone signal that receives is carried out spectrum analysis, and synthesizes the digital signal of string qin tone color according to frequency spectrum parameter.
Described tone color processing module also comprises the erasable storage unit of the one or more data messages in a storage Chinese fiddle kind, Echo selection, the selection of string qin group tone color, and processor unit is according to the digital signal of the synthetic special string qin tone color of the configuration information in the erasable storage unit.
Described string sound recovery module comprises: digital to analog converter and postfilter, digital to analog converter converts the digital signal of the string qin tone color that receives to simulating signal, outputs to and filters the noise signal noise in the postfilter.
Described string sound recovery module also comprises power amplifier and loudspeaker, and power amplifier is to amplifying through the filtered simulating signal of postfilter, and exports by loudspeaker.
Described string sound recovery module also comprises the output interface adaptation unit, and the output interface adaptation unit is used for the simulating signal behind the rate ratio is outputed to audio sockets or MIDI socket.
Described circuit also comprises a reset circuit, is used to force the tone color processing module to resume work.
Described circuit also comprises human-computer interface module, and one or more data of the tone color kind of information that is used for the user is set, information volume, echo effect information, string qin group tamber effect information write erasable storage unit.
The utility model has also proposed a kind of electronic Hu Qin, and except comprising: qin bar, qin axle, string, bridge, qin tube, Qin Tuo, the bow, also comprise above-mentioned string sound treatment circuit, string sound treatment circuit places the qin body, does not re-use boa skin resonant structure.
The utility model adopts the direct perception vibrations of strings of vibration transducer collection owing to abandon the boa skin resonance principle of common Chinese fiddle, can improve tonequality, and increases the treble volume, and is implemented in simulation string qin tone color on any pitch.
Description of drawings
Fig. 1 is the utility model numeral string sound treatment circuit schematic diagram;
Fig. 2 is the circuit theory diagrams that adopt the utility model numeral string sound treatment circuit embodiment.
Embodiment
As shown in Figure 1, the utility model numeral string sound treatment circuit comprises: power module 11, time clock unit 12, string sound acquisition module 13, tone color processing module 14 polyphonic ring tone recovery module 15.Power module 11 provides working power for other modules; Time clock unit 12 provides time clock for the digital device in the circuit; String sound acquisition module 13 passes through sensor acquisition with the string sound, and converts digital signal to; Tone color processing module 14 is with the digital signal of the synthetic string qin tone color of digitized string tone signal of string sound acquisition module output; String sound recovery module 15 converts the digital signal of the string qin tone color that tone color processing module 14 generates to electric signal.The utility model passes through sensor acquisition string sound, and it is reduced into the signal of string qin tone color in tone color processing module 14, and processing can improve tonequality like this, and increases the treble volume, and is implemented in simulation string qin tone color on any pitch.
The circuit of embodiment is realized principle as shown in Figure 2, and circuit comprises: power module 11, time clock unit 12, string sound acquisition module 13, tone color processing module 14 polyphonic ring tone recovery module 15.
String sound acquisition module 13 comprises: vibration transducer 21, prefilter 22 and analog to digital converter 23, and vibration transducer 21 is gathered the string vibration signals, and converts thereof into electric signal and output to prefilter 22; Prefilter 22 filters out the noise frequency beyond the string qin audio frequency, and outputs to analog to digital converter 23; Analog to digital converter 23 will be a digital signal through the string vibration electrical signal conversion of filtering.
Tone color processing module 14 comprises: processor unit 25, read-only memory unit 24, dynamic random storage unit 26; Read-only memory unit 24 is used to preserve the frequency spectrum parameter of string qin and the program code that processor unit 25 needs are carried out; Dynamic random storage unit 26 is used for preserving the intermediate data that the processor unit processing procedure produces; Processor unit 25 is used for the digitizing string tone signal that receives is carried out spectrum analysis, and synthesizes the digital signal of string qin tone color according to frequency spectrum parameter.
Tone color processing module 14 also comprises the erasable storage unit of the one or more data messages in a storage Chinese fiddle kind, Echo selection, the selection of string qin group tone color, and processor unit 14 is according to the digital signal of the synthetic special string qin tone color of the configuration information in the erasable storage unit.
String sound recovery module 15 comprises: digital to analog converter 27 and postfilter 28, digital to analog converter 27 converts the digital signal of the string qin tone color that receives to simulating signal, outputs to and filters the noise signal noise in the postfilter 28.
String sound recovery module 15 also comprises power amplifier 29 and loudspeaker 30, and 29 pairs in power amplifier amplifies through postfilter 28 filtered simulating signals, and by loudspeaker 30 outputs.
Sound recovery module 15 also comprises output interface adaptation unit 31, and output interface adaptation unit 31 is used for and will outputs to audio sockets or MIDI socket through filtered simulating signal.
Reset circuit 32 is used to force tone color processing module 14 to resume work.
Human-computer interface module 33, one or more data of the tone color kind of information that is used for the user is set, information volume, echo effect information, string qin group tamber effect information write erasable storage unit.
Circuit shown in Figure 2 can be placed in the qin body of digital electronic Chinese fiddle, comprise in the Chinese fiddle: comprising: qin bar, qin axle, string, bridge, qin tube, Qin Tuo, bow, but abandoned the boa skin resonance principle of common Chinese fiddle, adopt vibration transducer 21 to gather direct perception vibrations of strings, be converted to input electrical signal, signal enters analog to digital converter 23 after pre-filtering, become digital signal.
Digital signal enters processor unit 25, in processor unit 25
1) digital signal is carried out spectrum analysis, judge the pitch that the player plays, be i.e. the fundamental signal of string vibration.Analyze player's playing technique simultaneously, as overtone, various bowing.
2) musical instrument kind and the playing technique of setting according to the player read the frequency spectrum table of musical instrument correspondence from read-only memory unit 24, calculates the amplitude of each frequency on the whole audible spectrum.The line linearity of going forward side by side stack becomes the full frequency band signal.
3) add Chinese fiddle group effect if the player sets, in processor,, calculate synthetic Chinese fiddle group's full frequency band signal according to the Chinese fiddle quantity of setting.
4), in processor, synthesize and added the full frequency band signal behind the echo effect if the player sets the interpolation echo effect.
Digital signal after processor unit 25 outputs are synthetic produces synthetic back simulating signal through digital to analog converter 27.Simulating signal drives loudspeaker 30 sounding through after filtering, amplifying, and forms Chinese fiddle sound.Digital signal or simulating signal also can be passed through other outputs, as earphone or MID socket, will synthesize the back signal and send external units such as those who answer or computing machine to.
Above-mentioned embodiment is illustrated the utility model with preferred embodiment, but the example of this imagery of just lifting for the ease of understanding should not be considered to be the restriction to the utility model scope.Equally, according to the description of the technical solution of the utility model and preferred embodiment thereof, can make various possible being equal to and change or replacement, and all these changes or replacement all should belong to the protection domain of the utility model claim.
Claims (10)
1. a digital string sound treatment circuit is characterized in that described circuit comprises: power module, time clock unit, string sound acquisition module, tone color processing module polyphonic ring tone recovery module;
Described power module provides working power for other modules;
Described time clock unit provides time clock for the digital device in the circuit;
Described string sound acquisition module passes through sensor acquisition with the vibration string sound of string qin, and converts digital signal to;
Described tone color processing module is with the digital signal of the synthetic string qin tone color of digitized string tone signal of string sound acquisition module output;
Described string sound recovery module converts the digital signal of the string qin tone color that the tone color processing module generates to electric signal.
2. circuit as claimed in claim 1 is characterized in that, described string sound acquisition module comprises: vibration transducer, prefilter and analog to digital converter, vibration transducer are gathered the string vibration signal, and convert thereof into electric signal and output to prefilter; Prefilter filters out the noise frequency beyond the string qin audio frequency, and outputs to analog to digital converter; Analog to digital converter will be a digital signal through the string vibration electrical signal conversion of filtering.
3. circuit as claimed in claim 1 is characterized in that, described tone color processing module comprises: processor unit, read-only memory unit, dynamic random storage unit; Read-only memory unit is used to preserve the frequency spectrum parameter of string qin and the program code that processor unit need be carried out; The dynamic random storage unit is used for preserving the intermediate data that the processor unit processing procedure produces; Processor unit is used for the digitizing string tone signal that receives is carried out spectrum analysis, and synthesizes the digital signal of string qin tone color according to frequency spectrum parameter.
4. circuit as claimed in claim 3, it is characterized in that, described tone color processing module also comprises the erasable storage unit of the one or more data messages in a storage string qin kind, Echo selection, the selection of string qin group tone color, and processor unit is according to the digital signal of the synthetic special string qin tone color of the configuration information in the erasable storage unit.
5. circuit as claimed in claim 1, it is characterized in that, described string sound recovery module comprises: digital to analog converter and postfilter, digital to analog converter converts the digital signal of the string qin tone color that receives to simulating signal, outputs to and filters the noise signal noise in the postfilter.
6. circuit as claimed in claim 5 is characterized in that, described string sound recovery module also comprises power amplifier and loudspeaker, and power amplifier is to amplifying through the filtered simulating signal of postfilter, and exports by loudspeaker.
7. circuit as claimed in claim 5 is characterized in that, described string sound recovery module also comprises the output interface adaptation unit, and the output interface adaptation unit is used for and will outputs to audio sockets or MIDI socket through filtered simulating signal.
8. as claim 1,2,3,5 arbitrary described circuit, it is characterized in that described circuit also comprises a reset circuit, be used to force the tone color processing module to resume work.
9. as claim 1,2,3,5 arbitrary described circuit, it is characterized in that, described circuit also comprises human-computer interface module, and one or more data of the tone color kind of information that is used for the user is set, information volume, echo effect information, string qin group tamber effect information write erasable storage unit.
An employing as claim 1-9 arbitrary as described in the electronic Hu Qin of string sound treatment circuit, comprise: qin bar, qin axle, string, bridge, qin tube, Qin Tuo, bow, it is characterized in that also comprise described string sound treatment circuit, described string sound treatment circuit places the qin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122071 CN2932557Y (en) | 2006-07-04 | 2006-07-04 | Digital string sound processing circuit and the electric Hu violin using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122071 CN2932557Y (en) | 2006-07-04 | 2006-07-04 | Digital string sound processing circuit and the electric Hu violin using the same |
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| CN2932557Y true CN2932557Y (en) | 2007-08-08 |
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| CN 200620122071 Expired - Fee Related CN2932557Y (en) | 2006-07-04 | 2006-07-04 | Digital string sound processing circuit and the electric Hu violin using the same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102194451A (en) * | 2010-03-18 | 2011-09-21 | 雅马哈株式会社 | Signal processing device and stringed instrument |
| CN105744443A (en) * | 2016-05-05 | 2016-07-06 | 广州博创乐器有限公司 | Digital audio processing method for string instrument |
| CN106098043A (en) * | 2016-06-12 | 2016-11-09 | 中北大学 | A kind of electronic violin and its implementation |
| CN107195289A (en) * | 2016-05-28 | 2017-09-22 | 浙江大学 | A kind of editable multistage Timbre Synthesis system and method |
| 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 |
-
2006
- 2006-07-04 CN CN 200620122071 patent/CN2932557Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102194451A (en) * | 2010-03-18 | 2011-09-21 | 雅马哈株式会社 | Signal processing device and stringed instrument |
| CN102194451B (en) * | 2010-03-18 | 2013-02-13 | 雅马哈株式会社 | Signal processing device and stringed instrument |
| CN105744443A (en) * | 2016-05-05 | 2016-07-06 | 广州博创乐器有限公司 | Digital audio processing method for string instrument |
| CN105744443B (en) * | 2016-05-05 | 2019-07-09 | 广州博创乐器有限公司 | Digital audio processing system for stringed musical instrument |
| CN107195289A (en) * | 2016-05-28 | 2017-09-22 | 浙江大学 | A kind of editable multistage Timbre Synthesis system and method |
| CN106098043A (en) * | 2016-06-12 | 2016-11-09 | 中北大学 | A kind of electronic violin and its implementation |
| 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 |
| CN111684519A (en) * | 2018-05-10 | 2020-09-18 | 深圳配天智能技术研究院有限公司 | Simulation device for bowed stringed instrument |
| CN111684519B (en) * | 2018-05-10 | 2024-01-12 | 深圳配天机器人技术有限公司 | Simulation device for bowstring musical instrument |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Dayong Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 Termination date: 20090804 |