CN204010661U - A kind of qin acoustic pickup - Google Patents
A kind of qin acoustic pickup Download PDFInfo
- Publication number
- CN204010661U CN204010661U CN201420326571.XU CN201420326571U CN204010661U CN 204010661 U CN204010661 U CN 204010661U CN 201420326571 U CN201420326571 U CN 201420326571U CN 204010661 U CN204010661 U CN 204010661U
- Authority
- CN
- China
- Prior art keywords
- qin
- pickup
- box
- loudspeaker
- microphone
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- Expired - Fee Related
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Abstract
The utility model proposes a kind of qin acoustic pickup, comprise microphone, loudspeaker, also comprise the pickup box of sealing, and prime amplifier, audio-frequency power amplifier, described microphone is placed in pickup box and is connected to the input end of prime amplifier by passing the tone frequency channel wire of described pickup box, and the output terminal of described prime amplifier is connected on loudspeaker via audio-frequency power amplifier.The utility model is simple and reasonable for structure, can utilize pickup box and closure and resonance, can pick up the beautiful sound that qin sends, can separate with environment noise around again, improve greatly the tonequality of pickup, also avoided tuning up positive feedback that loudspeaker the produces problem of uttering long and high-pitched sounds simultaneously.
Description
Technical field
The utility model relates to musical instrument field, particularly relates to a kind of qin acoustic pickup.
Background technology
The articulation type of qin is: elastomeric one end is fixed, stir the other end with hand, after finger breaks away, elastic body will be replied the state when static, the kinetic energy of putting aside on elastic body when stirring can once not release, therefore produce regular damped vibration back and forth, and then produce the sound of fixed frequency.According to this principle, utilize the elastic body of many unlike materials, thickness, length, just can obtain the sound of different tone colors and different frequency.
Due to very little for the elastomeric Oscillation Amplitude pronouncing in qin, what be difficult to listen sees the sound that it produces, and therefore, in the time using qin to play, often needs with acoustic pickup, qin sound is picked up and amplified.Existing acoustic pickup, conventionally need to be the scroll head of qin by placing on the wooden desk of qin, make wooden desk become a resonant, again with the microphone qin of moving close to, pick up the qin sound of sympathetic response amplification and be converted to electric signal, then after utilizing loudspeaker further to amplify, broadcast original qin sound, reach with this performance requirement that meets stage, theater.
But the small qin sound that elastic body sends can make a lot of audio frequency further decay after propagating in open air, especially high-frequency sound and trickle overtone can seriously be decayed in the propagation of air, make audio distortions, and the sound that causes microphone to obtain is very shrivelled; Meanwhile, microphone also can pick up the noise in environment, if by large loudspeaker Kai get Tai, can make again the noise in environment turn back in microphone in order to amplify qin sound, and the critical defect that causes positive feedback to utter long and high-pitched sounds.
Summary of the invention
The problem that the utility model exists for above-mentioned prior art, provides a kind of qin acoustic pickup, and for small qin sound is picked up out, isolation that again can be relative with environmental noise, makes qin sound be able to fidelity.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of qin acoustic pickup, comprise microphone, loudspeaker, also comprise the pickup box of sealing, and prime amplifier, audio-frequency power amplifier, described microphone is placed in pickup box and is connected to the input end of prime amplifier by passing the tone frequency channel wire of described pickup box, and the output terminal of described prime amplifier is connected on loudspeaker via audio-frequency power amplifier.
Can pass through pickup box isolation environment noise, simultaneously pickup box can with the sympathetic response of qin sound, after qin sound is amplified, pick up for microphone, then by tone frequency channel wire, the electric signal of qin sound is inputed to prime amplifier to amplify audio frequency, then by being exported by loudspeaker after audio-frequency power amplifier amplifying power.It is simple and reasonable, can utilize pickup box and closure and resonance, can pick up the beautiful sound that qin sends, can separate with environment noise around again, improve greatly the tonequality of pickup, also avoided tuning up positive feedback that loudspeaker the produces problem of uttering long and high-pitched sounds simultaneously.
Tub that described pickup box is tetragonal body shape, described tub attached bag is drawn together box body and the lid hinged with box body.By tub and the sympathetic response of qin sound, can keep the melodious limpid speciality of qin sound, its audio is good, and tub easily obtains, and cost of manufacture is low, and lid is set, and is also easy to adjust the microphone in tub.
The utility model has the advantages that: simple and reasonable for structure, can utilize pickup box and closure and resonance, can pick up the beautiful sound that qin sends, can separate with environment noise around again, improve greatly the tonequality of pickup, also avoided tuning up positive feedback that loudspeaker the produces problem of uttering long and high-pitched sounds simultaneously; By tub and the sympathetic response of qin sound, can keep the melodious limpid speciality of qin sound, its audio is good, and tub easily obtains, and cost of manufacture is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Description of reference numerals: 1, pickup box; 2, microphone; 3, prime amplifier; 4, audio-frequency power amplifier; 5, loudspeaker; 6, tone frequency channel wire; 7, box body; 8, lid.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Figure 1, a kind of qin acoustic pickup, comprise microphone 2, loudspeaker 5, also comprise the pickup box 1 of sealing, and prime amplifier 3, audio-frequency power amplifier 4, described microphone 2 is placed in pickup box 1 and is connected to the input end of prime amplifier 3 by passing the tone frequency channel wire 6 of described pickup box 1, and the output terminal of described prime amplifier 3 is connected on loudspeaker 5 via audio-frequency power amplifier 4.
Principle of work of the present utility model is:
Can isolation environment noise by pickup box 1, pickup box 1 meeting and the sympathetic response of qin sound simultaneously, after being amplified, picks up for microphone 2 qin sound, by tone frequency channel wire 6, the electric signal of qin sound is inputed to prime amplifier 3 to amplify audio frequency again, again by being exported by loudspeaker 5 after audio-frequency power amplifier 4 amplifying powers, through repeatedly amplifying, the sound that qin sends is amplified thus, meet the performance requirement of stage, theater.
Described pickup box 1 is tub of tetragonal body shape, and described tub attached bag is drawn together box body 7 and the lid 8 hinged with box body 7.
By tub and the sympathetic response of qin sound, can keep the melodious limpid speciality of qin sound, its audio is good, and the musical instruments such as existing guitar, violin just because of this tonequality feature of timber, and adopt wooden housing; And tub easily obtains, cost of manufacture is low, by lid 8 is set, be also easy to adjust the microphone 2 in tub, can hinge be set in a side of lid 8, lid 8 is hinged on box body 7, in prior art, has multiple hinged mode, be not restricted herein.
The utility model is simple and reasonable for structure, can utilize pickup box and closure and resonance, can pick up the beautiful sound that qin sends, can separate with environment noise around again, improve greatly the tonequality of pickup, also avoided tuning up positive feedback that loudspeaker the produces problem of uttering long and high-pitched sounds simultaneously; By tub and the sympathetic response of qin sound, can keep the melodious limpid speciality of qin sound, its audio is good, and tub easily obtains, and cost of manufacture is low.
Above-listed detailed description is for the illustrating of the utility model possible embodiments, and this embodiment is not in order to limit the scope of the claims of the present utility model, does not allly depart from the equivalence that the utility model does and implements or change, and all should be contained in the scope of the claims of this case.
Claims (2)
1. a qin acoustic pickup, comprise microphone, loudspeaker, it is characterized in that, also comprise the pickup box of sealing, and prime amplifier, audio-frequency power amplifier, described microphone is placed in pickup box and is connected to the input end of prime amplifier by passing the tone frequency channel wire of described pickup box, and the output terminal of described prime amplifier is connected on loudspeaker via audio-frequency power amplifier.
2. qin acoustic pickup according to claim 1, is characterized in that, tub that described pickup box is tetragonal body shape, and described tub attached bag is drawn together box body and the lid hinged with box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326571.XU CN204010661U (en) | 2014-06-18 | 2014-06-18 | A kind of qin acoustic pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326571.XU CN204010661U (en) | 2014-06-18 | 2014-06-18 | A kind of qin acoustic pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010661U true CN204010661U (en) | 2014-12-10 |
Family
ID=52050625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420326571.XU Expired - Fee Related CN204010661U (en) | 2014-06-18 | 2014-06-18 | A kind of qin acoustic pickup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204010661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667649B (en) * | 2018-01-23 | 2019-08-01 | 王宇寧 | Violin ring with stereo surround sound field |
-
2014
- 2014-06-18 CN CN201420326571.XU patent/CN204010661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667649B (en) * | 2018-01-23 | 2019-08-01 | 王宇寧 | Violin ring with stereo surround sound field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190618 |