CN208905194U - Silent sound reverberation one power amplifier - Google Patents
Silent sound reverberation one power amplifier Download PDFInfo
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- CN208905194U CN208905194U CN201821464382.3U CN201821464382U CN208905194U CN 208905194 U CN208905194 U CN 208905194U CN 201821464382 U CN201821464382 U CN 201821464382U CN 208905194 U CN208905194 U CN 208905194U
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- reverberation
- electrically connected
- silent sound
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Abstract
The utility model belongs to power amplifier technical field, more particularly to silent sound reverberation one power amplifier, including microphone input interface and music input interface, the microphone input interface is successively electrically connected with microphone input amplifying circuit, reverberation circuit, mixer circuit and power amplifier, the music input interface is sequentially connected route input amplifying circuit and silent sound circuit, the silent sound circuit is electrically connected at the rear end of reverberation circuit and is electrically connected at the front end of mixer circuit, and the rear end of the power amplifier is also electrically connected with audio output interface.The utility model can be used simultaneously silent sound and reverberation function in same power amplifier, can effectively reduce the equipment acquisition cost of user by the structure of integrating broadcast power amplifier and power amplifier of playing Karaoka.
Description
Technical field
The utility model relates to power amplifier technical fields, in particular to silent sound reverberation one power amplifier.
Background technique
In general broadcast power amplifier, in order to when playing the contents such as music can inter-cut speech notice immediately, can be arranged
The circuit module of silent sound function is provided, so as to Rapid shielding background music, the voice of prominent microphone input.And power amplifier of playing Karaoka is
It obtains user and preferably sings experience, reverberation circuit can be set in input path, the sound of microphone input is carried out beautiful
Change.But individually purchase can be needed in conjunction with the product of the two function, two kinds of power amplifiers there are no a kind of on the market at present.And
In the places such as more small-sized supermarket, clothes shop and restaurant, and there is broadcast playback simultaneously and use reverberation when holding popularization activity
Functional promotion microphone exports the demand of sound effect, and the input cost of equipment is higher.
In order to cater to the use demand in the places such as small-sized sales field, product competitiveness is improved, promotes industry development, researches and develops one kind
The power amplification device that silent sound and reverberation function can be provided simultaneously has necessity.
Utility model content
The reverberation function needs that the silent sound function and Karaoke power amplifier provided for the broadcast power amplifier solved on the market provides
It individually buys corresponding power amplifier and realizes that equipment purchase higher cost, problem inconvenient for use provides silent sound reverberation one power amplifier.
Silent sound reverberation one power amplifier, including microphone input interface and music input interface, the microphone input interface is successively
It is electrically connected with microphone input amplifying circuit, reverberation circuit, mixer circuit and power amplifier, the music input interface is successively
Connection line input amplifying circuit and silent sound circuit, the silent sound circuit are electrically connected at rear end and the electric connection of reverberation circuit
Audio output interface is also electrically connected in the rear end of the front end of mixer circuit, the power amplifier.
Further, the silent sound circuit includes the signal threshold value detection module and signal decay mode being successively electrically connected
Block, the signal threshold value detection module are electrically connected at the rear end of reverberation circuit, and the signal attenuation module is electrically connected at line
Between road input amplifying circuit and mixer circuit.
Further, the reverberation circuit is electrically connected with reverberation time adjuster.
Further, the silent sound circuit is electrically connected with silent sound depth adjuster.
Further, the power amplifier is electrically connected with volume control potentiometer, high-pitched tone nodal potential device and bass
Adjust potentiometer.
Utility model has the advantages that
1, silent sound and reverberation function are incorporated in a power amplifier, and can be used simultaneously.
2, reverberation time and silent sound depth can be adjusted arbitrarily.
3, practical volume, high pitch and the bass that potentiometer controls is digital controlled signal, and power amplifier can be according to reality
Situation is associated adjustment to volume, high pitch and bass, and avoidable adjustment is improper to lead to audio distortions.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the circuit module schematic diagram of silent sound reverberation one power amplifier；
Fig. 2 is the main view of silent sound reverberation one power amplifier.
Attached drawing mark:
1- microphone input interface, 2- music input interface, 3- microphone input amplifying circuit, 4- reverberation circuit, 5- audio mixing electricity
Road, 6- power amplifier, 7- route input amplifying circuit, 8- write from memory sound circuit, 9- audio output interface, the detection of 10- signal threshold value
Module, 11- signal attenuation module, 12- reverberation time adjuster, 13- write from memory sound depth adjuster, 14- volume control potentiometer,
15- high-pitched tone nodal potential device, 16- low pitch nodal potential device, 17- microphone volume adjuster.
Specific embodiment
The reverberation function needs that the silent sound function and Karaoke power amplifier provided for the broadcast power amplifier solved on the market provides
It individually buys corresponding power amplifier and realizes that equipment purchase higher cost, problem inconvenient for use provides silent sound reverberation one power amplifier.
Keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with the utility model
Attached drawing in embodiment, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that described
Embodiment be the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art obtain without making creative work belong to this
The range of utility model protection.
As illustrated in fig. 1 and 2, the present embodiment provides silent sound reverberation one power amplifiers, including microphone input interface 1 and music input
Interface 2, the microphone input interface 1 are successively electrically connected with microphone input amplifying circuit 3, reverberation circuit 4,5 and of mixer circuit
Power amplifier 6, the music input interface 2 are sequentially connected route input amplifying circuit 7 and silent sound circuit 8, the silent sound electricity
Road 8 is electrically connected at the rear end of reverberation circuit 4 and is electrically connected at the front end of mixer circuit 5, the rear end of the power amplifier 6
Also it is electrically connected with audio output interface 9.In actual use, music input interface 2 can connect CD player and computer etc. and play source of sound,
And microphone input interface 1 is then used to connect speaker for connecting microphone, audio output interface 9.Equipment connects in broadcasting music input
When the audio of 2 input of mouth, if microphone input interface 1 receives voice, reverberation circuit 4 and silent sound circuit 8 will be worked at the same time, mixed
The volume of music that music input interface 2 inputs is reduced while ringing beautification microphone voice.
The silent sound circuit 8 includes the signal threshold value detection module 10 being successively electrically connected and signal attenuation module 11, institute
The rear end that signal threshold value detection module 10 is electrically connected at reverberation circuit 4 is stated, the signal attenuation module 11 is electrically connected at line
Between road input amplifying circuit 7 and mixer circuit 5.When signal threshold value detection module 10 detects that microphone input interface 1 has input
After voice, signal attenuation module 11 decays the audio inputted to music input interface 2, defeated after the integration of mixer circuit 5
Out, it is ensured that silent audio fruit.
The reverberation circuit 4 is electrically connected with reverberation time adjuster 12.Reverberation time adjuster 12 uses potentiometer system
At being adjusted convenient for user to reverberation effect, can also close reverberation effect, realize single silent sound function.
The silent sound circuit 8 is electrically connected with silent sound depth adjuster 13.Silent sound depth adjuster 13 uses potentiometer system
At being adjusted convenient for user to silent sound depth, silent audio fruit can also be closed, realized single reverberation function, play Karaoka
Activity.
The power amplifier 6 is electrically connected with volume control potentiometer 14, high-pitched tone nodal potential device 15 and bass and adjusts
Potentiometer 16.Volume control potentiometer 14, high-pitched tone nodal potential device 15 and low pitch nodal potential device 16 transmit electric signal, through function
Rate amplifier 6 carries out processing adjusting after identifying, makes volume, high pitch and bass linkage, may when high pitch or bass boost excess
Distorted signals can be caused to increase, the control circuit inside power amplifier 6 reduces volume automatically at this time；Conversely, volume is tuned up
When, if the promotion of high pitch or bass itself is very big, it is also possible to cause to be distorted, the control circuit of power amplifier 6 is automatic at this time
Reduce the lifting capacity of high pitch or bass, can avoid intermodulation distortion influences normal broadcast.Words are additionally provided on the present embodiment front panel
Cylinder volume adjuster 17, for adjusting microphone volume.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions, i.e., it is all according to the made equivalent changes and modifications of the application range,
It should still belong in the utility model covering scope.
Claims (5)
1. silent sound reverberation one power amplifier, which is characterized in that including microphone input interface and music input interface, the microphone input
Interface is successively electrically connected with microphone input amplifying circuit, reverberation circuit, mixer circuit and power amplifier, the music input
Interface is sequentially connected route input amplifying circuit and silent sound circuit, and the silent sound circuit is electrically connected at the rear end of reverberation circuit simultaneously
It is electrically connected at the front end of mixer circuit, the rear end of the power amplifier is also electrically connected with audio output interface.
2. silent sound reverberation one power amplifier according to claim 1, which is characterized in that the silent sound circuit includes successively electrical
The signal threshold value detection module and signal attenuation module of connection, the signal threshold value detection module are electrically connected at reverberation circuit
Rear end, the signal attenuation module are electrically connected between route input amplifying circuit and mixer circuit.
3. silent sound reverberation one power amplifier according to claim 1, which is characterized in that the reverberation circuit is electrically connected with mixed
Ring time regulator.
4. silent sound reverberation one power amplifier according to claim 1, which is characterized in that the silent sound circuit is electrically connected with silent
Sound depth adjuster.
5. silent sound reverberation one power amplifier according to claim 1, which is characterized in that the power amplifier is electrically connected with
Volume control potentiometer, high-pitched tone nodal potential device and low pitch nodal potential device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464382.3U CN208905194U (en) | 2018-09-07 | 2018-09-07 | Silent sound reverberation one power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464382.3U CN208905194U (en) | 2018-09-07 | 2018-09-07 | Silent sound reverberation one power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208905194U true CN208905194U (en) | 2019-05-24 |
Family
ID=66571692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821464382.3U Active CN208905194U (en) | 2018-09-07 | 2018-09-07 | Silent sound reverberation one power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208905194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901726A (en) * | 2020-07-29 | 2020-11-06 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
-
2018
- 2018-09-07 CN CN201821464382.3U patent/CN208905194U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901726A (en) * | 2020-07-29 | 2020-11-06 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
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